Re: [Qgis-user] Using qgis as realtime decision support tool

[Raymond Nijssen]

On 18-06-18 17:10, Jeroen Hovens wrote:

That would work if updating the xlsx file automatically leads to an updated 
map. Does it, or do I have to renew the join every time the xlslx is updated?


Just (re)opening the project should work. You can easily test it locally.



I would like the decision makers to see directly what happens to the 
geographical spread if they refuse proposal 10 to 21 (for instance based on 
quality of the proposal). Because geographical spread is one of the criteria 
and this is best visualized with a map (instead of a list of municipality 
names), they can argue and reconsider choices. That's my need for 'real-time'.
Combined with the wish to make changes in just one document (xlsx being the 
easiest) in stead of two (both xlsx and qgis), I am looking for solution.


To be honest, opening the attribute table and edit some cells manually 
in an edit session is not too complicated imho.





I have to look into the Statistics panel. Will that provide cumulations of a 
certain column based on a selection of fields (all the selected proposals)? And 
what is used to create that selection? Does it refresh automatically?


Yes, you choose the layer and column and it shows all statistics. It can 
also show the statistics for the selected features only.







-Oorspronkelijk bericht-
Van: Qgis-user  Namens Raymond Nijssen
Verzonden: maandag 18 juni 2018 13:35
Aan: qgis-user@lists.osgeo.org
Onderwerp: Re: [Qgis-user] Using qgis as realtime decision support tool

Hi Jeroen,

If I understand you correctly, you just want to color entire municipalities 
based on information in one or few columns? And the challenge is cooperating 
with others, who don't know QGIS?

You could use a shared drive, like dropbox, to store 3 files:
1 table (xlsx or csv)
1 geo layer with municipalities (gpkg or shp)
1 qgis project, with the table joined to the layer, and with the desired style

Others can update the table, and you (and others) can open the project and see 
the updated map in qgis.

Would that work?


On 18-06-18 12:40, Alexandre Neto wrote:

I agree that one layer would be preferable. Using the categorized
renderer would make it easy to select and deselect proposals. You can
create the classes with  a mix of the name of the munucipality and the
bugdet,  that way that is visible directly on the  legend, making it
easier to select.

Then you can use the Statistics panel to show the stats over a column,
for example the budget sum.

Jeroen Hovens mailto:m...@groenebij.nl>> escreveu
no dia segunda, 18/06/2018 às 11:27:

 I have not organized the data yet, that will depend on the pro’s and
 con’s of idea’s how to use it.

 __ __

 For now, I am thinking along the following line:

 All municipalities as fields with attributes being whether or not
 they have a proposal and specific information about the proposal
 such as budget needed, type of project, etc.

 That would mean 1 layer with all the proposals. That way it seems
 easier to show the entire map (all municipalities white, just
 borders, and all municipalities with proposal coloured), so to
 easily see the spread.

 __ __

 __ __

 *Van:* Alexandre Neto mailto:senhor.n...@gmail.com>>
 *Verzonden:* maandag 18 juni 2018 12:03
 *Aan:* Jeroen Hovens mailto:m...@groenebij.nl>>
 *CC:* qgis-user@lists.osgeo.org <mailto:qgis-user@lists.osgeo.org>
 *Onderwerp:* Re: [Qgis-user] Using qgis as realtime decision support
 tool

 __ __

 Hi,

 It's not clear how your data is organized, making it dificult to
 help in such a specific request. All the porposals are in the same
 layer, or in diferent layers?

 __ __

 Still, if you put all the proposal layers in mutually exclusive
 group, it will be easy to swap between proposals.

 __ __

 If they are all in the same layer, you can categorize and in the
 legend you can select which proposal to show.

 __ __

 
https://docs.qgis.org/testing/en/docs/user_manual/introduction/general

_tools.html?highlight=mutually#interact-with-groups-and-layers

 __ __

 You can also create an atlas with the necessary visualizations for
 each proposal and the calculus of the values you wish to show. But
 again, it all depends on how you have you data organized.

 __ __

 __ __

 Jeroen Hovens mailto:m...@groenebij.nl>>
 escreveu no dia segunda, 18/06/2018 às 10:19:

 Hello,

 

 I am thinking about using qgis as a real-time decision support
 tool and I am looking for some good ideas to ease the
process.

 

 The case is the following:

 I have proposals from 60 municipalities (out of a possible few
 hundred), each has 1 proposal. There is only room for 20
 pr

Re: [Qgis-user] Using qgis as realtime decision support tool

[Raymond Nijssen]

Hi Jeroen,

If I understand you correctly, you just want to color entire 
municipalities based on information in one or few columns? And the 
challenge is cooperating with others, who don't know QGIS?


You could use a shared drive, like dropbox, to store 3 files:
1 table (xlsx or csv)
1 geo layer with municipalities (gpkg or shp)
1 qgis project, with the table joined to the layer, and with the desired 
style


Others can update the table, and you (and others) can open the project 
and see the updated map in qgis.


Would that work?


On 18-06-18 12:40, Alexandre Neto wrote:
I agree that one layer would be preferable. Using the categorized 
renderer would make it easy to select and deselect proposals. You can 
create the classes with  a mix of the name of the munucipality and the 
bugdet,  that way that is visible directly on the  legend, making it 
easier to select.


Then you can use the Statistics panel to show the stats over a column, 
for example the budget sum.


Jeroen Hovens mailto:m...@groenebij.nl>> escreveu no 
dia segunda, 18/06/2018 às 11:27:


I have not organized the data yet, that will depend on the pro’s and
con’s of idea’s how to use it.

__ __

For now, I am thinking along the following line:

All municipalities as fields with attributes being whether or not
they have a proposal and specific information about the proposal
such as budget needed, type of project, etc.

That would mean 1 layer with all the proposals. That way it seems
easier to show the entire map (all municipalities white, just
borders, and all municipalities with proposal coloured), so to
easily see the spread.

__ __

__ __

*Van:* Alexandre Neto mailto:senhor.n...@gmail.com>>
*Verzonden:* maandag 18 juni 2018 12:03
*Aan:* Jeroen Hovens mailto:m...@groenebij.nl>>
*CC:* qgis-user@lists.osgeo.org 
*Onderwerp:* Re: [Qgis-user] Using qgis as realtime decision support
tool

__ __

Hi,

It's not clear how your data is organized, making it dificult to
help in such a specific request. All the porposals are in the same
layer, or in diferent layers?

__ __

Still, if you put all the proposal layers in mutually exclusive
group, it will be easy to swap between proposals.

__ __

If they are all in the same layer, you can categorize and in the
legend you can select which proposal to show.

__ __


https://docs.qgis.org/testing/en/docs/user_manual/introduction/general_tools.html?highlight=mutually#interact-with-groups-and-layers

__ __

You can also create an atlas with the necessary visualizations for
each proposal and the calculus of the values you wish to show. But
again, it all depends on how you have you data organized.

__ __

__ __

Jeroen Hovens mailto:m...@groenebij.nl>>
escreveu no dia segunda, 18/06/2018 às 10:19:

Hello,



I am thinking about using qgis as a real-time decision support
tool and I am looking for some good ideas to ease the process.



The case is the following:

I have proposals from 60 municipalities (out of a possible few
hundred), each has 1 proposal. There is only room for 20
proposals to be accepted. One of the criteria will be the
geographical spread of the proposals: it is preferred to have 20
proposals sort of evenly spread over the entire country, instead
of having the majority of them coming from one region.



My idea is to show these proposals on a map by colouring the
municipalities. As a decision support tool I need the ability to
adjust the selection in real-time (during the discussion). The
easy way is to just edit the attribute table or to select or
deselect specific municipalities. This however requires myself
to be present and make changes in qgis as the discussion goes
(given that nobody else in the decision group knows how to work
with qgis).

An alternative is to produce a webmap and have each municipality
with a proposal have it’s own specific attribute value (but all
using the same colour in categorized style), so they all show up
in the map-legend, and any group member can easily select or
deselect a specific municipality from the legend.



Do you have other ideas how to use a map as a real-time decision
support tool?



Quality of the proposal is the main criterium, but in addition
to the geographical spread there are others as well, such as
variety in projects and the cumulative budget for the selected
proposals (the cumulative budget is capped). Since I am not well
known with database and calculation options in qgis an

Re: [Qgis-user] QGIS3 Layout - North Arrow?

[Raymond Nijssen]

Hi Frank, it is really easy if you know what to do.

In your Print Composer

1. Add a Map:
   2. Set rotation to anything <> 0

3. Add an Image:
   4. Open "search directories" and pick a pre installed north arrow
   5. Check "Sync with map" for "Image rotation"

Good luck!

Raymond

On 28-03-18 04:16, Phil (The Geek) Wyatt wrote:

https://gis.stackexchange.com/questions/97464/how-to-put-north-arrow-and-scale-on-map-in-composer-in-qgis-2-2-0

-Original Message-
From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Frank 
Silkwood
Sent: Wednesday, March 28, 2018 8:50 AM
To: Bernd Vogelgesang; qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] QGIS3 Layout - North Arrow?

I don't understand this. Is there no way to add a north arrow in the Print 
Composer? You can easily add a scale.

Regards,   Frank

-Original Message-
From: Qgis-user  On Behalf Of Bernd 
Vogelgesang
Sent: Tuesday, March 27, 2018 11:56 AM
To: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] QGIS3 Layout - North Arrow?

I think it is not worth the effort to ask for that.
The devs had plenty of time to add a specific north arrow tool, but obviously 
had no great interest in it.
The map canvas and the composer window are completely different things, so 
there is no automatism to have the same features within both.
And actually it is quite clever to use the same tool for adding north arrows or 
any other image with one button ... it's just about telling the users where to 
look for.


Am 27.03.2018, 17:37 Uhr, schrieb knussear :


Well I have to go and find north arrows if I want them in my print
layout.
But when I'm just viewing them in my map they are available under
"decorations". It would be great if I could access the "decorations"
in the print layout - since they already exist somewhere within the
app.



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Re: [Qgis-user] Regular Shapes Digitising

[Raymond Nijssen]

In qgis3 (coming super soon) there is a new "Shape Digitizing Toolbar" 
with the "Add rectangle from 3 points" tool, among many others.


This toolbar is not enabled by default, so you'll need to enable it by:

View -> Toolbars -> Shape Digitizing Toolbar

Good luck,
Raymond



On 24-02-18 05:10, Patrick Dunford wrote:

Good afternoon (as it is where I live)

Can someone point me to a tutorial or something about how to use the 
tools on the Regular Shapes Digitising toolbar


I'm wondering if it will help me draw rectangles or squares more easily 
than the usual polygon thing when you have to try to straighten up the 
edges later.


thanks

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Re: [Qgis-user] Interpolated water depths overlap poorly with underlying sample points

[Raymond Nijssen]

Hi Tad,

I'd say you should save your data in a local projection first. Then you 
can use meters as units which will make more sense than 0.1 
degrees or whatever.


I tried 10 meters in epsg:3857 and it worked out well.

Good luck,
Raymond

On 08-01-18 18:26, Tad Deshler wrote:
I have created a vector layer from a spreadsheet that contains water 
depths and x-y coordinates in latitude and longitude (276 points in all, 
see attached). I've used the Interpolation plugin to create a TIN of 
water depths, but the interpolation doesn't cover the same region as the 
underlying points (see attached graphic). The results I do get seem 
accurate (deeper red points are at southern edge of grid), but are only 
partially what I need.


After specifying the interpolation attribute (Depth), the output section 
of the interpolation plugin displays the default number of columns and 
rows (300 for each). The Cellsize X is specified as 0.1 (I think 
because my longitude data is to five decimal places). So I left number 
of columns and Cellsize X as 300 and 0.1, respectively. The number 
of rows is also specified as 300, but the Cellsize Y was initially 
specified as 0.0, which not surprisingly yielded nothing for the 
interpolation. So next time, I changed the Cellsize Y value to 0.1 
to match Cellsize X. This automatically changed the number of rows to 
139. Could this be because the spread of my data is from 61.1201 to 
61.1215 degrees North, which would be 140 times 0.1?


I'm using QGIS 2.18.11. I am confused about why the interpolation 
doesn't cover all the sample points. I have tried changing the values 
for X and Y min and max (making them larger than the actual data range), 
but this only serves to place the interpolated result OUTSIDE the sample 
points, so I don't think that is the solution either.


Can anybody provide some guidance on where I'm going wrong here?

*Tad Deshler*

Coho Environmental LLC

206.778.9274

tad.desh...@cohoenvironmental.com 
//


cohoenvironmental.com

Logo-very small



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[Qgis-user] This is QGIS spam! :)

[Raymond Nijssen]

Hi Everyone!

New QGIS goodies have been added to our shop. So if you want to look 
cool AND sponsor QGIS a bit, order an item in your favorite colour!


http://shop.qgis.org/en/site/about/shop_goodies.html

If you have any remarks about the stores or maybe difficulties ordering 
from your location, please send me an email. It is hard to test the 
spreadshirt website being in only 1 country.


Kind regards,
Raymond
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Re: [Qgis-user] QGIS video "commercial"?

[Raymond Nijssen]

Pro bono.

(Wouldn't dare to ask money for my first video editing task. :D)

On 03-07-17 12:27, Andrea Giacomelli wrote:

Hi Raymond, and thanks for the appreciation on the video!

I knew it was partially out of scope, but it was also to present ideas 
and a setting that may be tuned to focus more on a specific product, 
rather than on an organization.


I might be interested to collaborate in the creation and production of 
such a video (and spawning for the one I sent plus others you may find 
on http://www.pibinko.org/services/videos/ I received in the past 
similar expressions of interest by eminent members of the QGIS-dev 
world), but I would like to understand if you see the production of this 
video as a "pro bono" initiative or a project which would be funded.


Best regards!

Andrea Giacomelli
http://www.pibinko.org <http://www.pibinko.org/>
i...@pibinko.org <mailto:i...@pibinko.org>
+39 331 7539228
P. IVA: 01582480537


2017-07-02 18:53 GMT+02:00 Raymond Nijssen <mailto:r.nijs...@terglobo.nl>>:


Hi Andrea,

Thanks for your reply. Not really what I was looking for but surely
fun to watch!

I'm thinking of creating a QGIS commercial now, so if anyone has
ideas please share them. (Or should those pop up in the Nodebo bar
later this year?)

Regards,
Raymond


On 02-07-17 17:14, Andrea Giacomelli wrote:

Hi Raymond,

QGIS is featured in this video, even though the video is not
"about QGIS" but introduces more in general the open GIS/open
data paradigm:

http://www.pibinko.org/riflessioni-sul-tematismo-on-freeopen-source-gis/

<http://www.pibinko.org/riflessioni-sul-tematismo-on-freeopen-source-gis/>

...it may be of help as a collateral (and it has been
appreciated by the community in the past and is always fun to
see, even after nine years)

Best regards from Italy!

Andrea Giacomelli
    http://www.pibinko.org

Il 30/giu/2017 12:24, "Raymond Nijssen" mailto:r.nijs...@terglobo.nl> <mailto:r.nijs...@terglobo.nl
<mailto:r.nijs...@terglobo.nl>>> ha scritto:

 I'm looking for a short commercial type of video that shows
what
 QGIS is and in what ways it can be useful to organizations.
 Explaining to non GIS people.

 Anyone aware of such a video?

 Regards,
 Raymond
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Re: [Qgis-user] QGIS video "commercial"?

[Raymond Nijssen]

Hi Andrea,

Thanks for your reply. Not really what I was looking for but surely fun 
to watch!


I'm thinking of creating a QGIS commercial now, so if anyone has ideas 
please share them. (Or should those pop up in the Nodebo bar later this 
year?)


Regards,
Raymond


On 02-07-17 17:14, Andrea Giacomelli wrote:

Hi Raymond,

QGIS is featured in this video, even though the video is not "about 
QGIS" but introduces more in general the open GIS/open data paradigm:


http://www.pibinko.org/riflessioni-sul-tematismo-on-freeopen-source-gis/

...it may be of help as a collateral (and it has been appreciated by the 
community in the past and is always fun to see, even after nine years)


Best regards from Italy!

Andrea Giacomelli
http://www.pibinko.org

Il 30/giu/2017 12:24, "Raymond Nijssen" <mailto:r.nijs...@terglobo.nl>> ha scritto:


I'm looking for a short commercial type of video that shows what
QGIS is and in what ways it can be useful to organizations.
Explaining to non GIS people.

Anyone aware of such a video?

Regards,
Raymond
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[Qgis-user] QGIS video "commercial"?

[Raymond Nijssen]

I'm looking for a short commercial type of video that shows what QGIS is 
and in what ways it can be useful to organizations. Explaining to non 
GIS people.


Anyone aware of such a video?

Regards,
Raymond
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Re: [Qgis-user] Raster Extent After Clipping

[Raymond Nijssen]

The GDAL "Clip raster by mask layer" tool has the option:

Crop the extent of the target dataset to the extent of the cutline

Good luck,
Raymond

BTW Feel free to bother us ;)


On 25-04-17 17:30, Michael Jabot wrote:

I apologize for bothering the list with this but I am stuck.

I have clipped a raster to a .shp file successfully but can not get the
extent of the clip to match the dimensions of the .shp file.

Any suggestions to what I am doing wrong would be greatly appreciated.

Again I apologize for bothering the list with this foolish question.

Mike

**
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Re: [Qgis-user] feature.geometry().asPolyline()

[Raymond Nijssen]

use in that case:

feature.geometry().asMultiPolyline()


http://qgis.osgeo.org/api/classQgsGeometry.html#a34cd2f4773f99402fdeb4a9874804895



On 22-04-17 11:02, ph...@gmx.de wrote:

Hi

i would like to add that i have found out, that all other are LineString
but this
one is MultiLineString

see the screen



thx


On 22. Apr. 2017, 10:42 +0200, ph...@gmx.de, wrote:

Hello

i have several map supplier loaded to my QGIS and check them through.
Except one al bringing back the Polyline  with the command

feature.geometry().asPolyline()

But one just results in []

Now i am struggling how to debug the best or what could be the reason
for ;-)

thx
pat




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Re: [Qgis-user] Problem with Voronoi diagrams

[Raymond Nijssen]

Unfortunately, this bug has been around for years. I'm afraid nobody 
really knows how to fix it.


https://hub.qgis.org/issues/8002

For me the grass tool v.voronoi works great. You can find it in processing.

Raymond


On 23-03-17 20:47, Khandoker Maniruzzaman wrote:

Several years ago I tried to generate Voronoi polygons around a number
of points. I think I was using QGIS version 2.10. The result was not
satisfactory (Nearest Distance interpolation in  raster gave better
results). There was one polygon with no generator point in it while an
adjacent polygon had two points. Another generator sat on a redundant
line dividing the polygon into two parts (is it okay to attach a
screenshot?). I found that this problem has not been solved even in the
latest version of QGIS.


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Re: [Qgis-user] How to reproject maps of world grasslands

[Raymond Nijssen]

Hi Martin,

Sorry, I cannot really help you.

Your data seems to be in the (quite odd for distributing data) projection:
https://en.wikipedia.org/wiki/Goode_homolosine_projection

And it is not recognized by qgis.

Proj4 seems to know it though:
http://proj4.org/projections/igh.html

And I found this:
http://gis.stackexchange.com/questions/17263/is-it-possible-to-use-the-goode-homolosine-projection-in-qgis

Hope it helps (a bit),
Raymond


On 19-03-17 20:49, Martin wrote:

Hello folks!

I would like to plot a simple map of the WWF World Grassland Types (the
shape file is available at
https://www.worldwildlife.org/publications/world-grassland-types

It is in an unusual projection. The .prj file is:

PROJCS["World_Goode_Homolosine_Land",GEOGCS["GCS_WGS_1984",DATUM
["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM
"Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION
["Goode_Homolosine"],PARAMETER["False_Easting",0.0],PARAMETER
["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER
["Option",1.0],UNIT["Meter",1.0]]

The map does not include the outline countries of the world and
therefore I would like to add these (perhaps the NaturalEarth 110
million scale country shape file, which is in WGS84).

However, I cannot figure out how to align the grassland layer and the
110 million NaturalEarth layer. As I understand it, I should use Save As
to reproject the grassland shape file with a new CRS (perhaps Mercator).
With Enable on the fly CRS transformation enabled I should then be able
to put the two shape files together - but I am darned if I can obtain
anything sensible: I cannot get the two layers to align in any way.

With grateful thanks for  any help, Martin



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Re: [Qgis-user] Processing - Duplicate tools for reprojecting

[Raymond Nijssen]

Many processing tools are duplicates. For example, If I filter for 
"buffer" I find 13 results in QGIS, GDAL, SAGA and GRASS libraries.


Since these last 3 are external projects, QGIS cannot control which 
tools are in there. And why should "somebody at QGIS" choose for you and 
everybody else which tools to use or not.


Besides, I'm often happy having a backup tool when the first one I try 
doesn't like my data for some reason.


So go ahead, pick the one you prefer and use it.

Raymond



On 17-03-17 22:49, johnrobot wrote:

I noticed that there seems to be two tools (GDAL and QGIS) for reprojecting
data in Processing. Do we really need two separate tools? Why not merge
them?

Regards,

Magnus



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Re: [Qgis-user] Unsubscribe

[Raymond Nijssen]

You can unsubscribe yourself by clicking the link all the way at the 
bottom of every mail here.


On 17-03-17 22:01, Paula Urbina wrote:

Hey!!

Could you please unsubcribe me?

--
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*Biologa *
*Universidad Militar Nueva Granada*


Libre de virus. www.avast.com



<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>


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Re: [Qgis-user] Center line

[Raymond Nijssen]

Recently I tried this model from Anita, and it worked very well. Avoid 
using too high accuracy values while exploring it, cause the calculation 
can take long.


http://gis.stackexchange.com/questions/33887/finding-centrelines-from-polygons-in-qgis

Raymond


On 16-03-17 20:16, Stefan Ziegler wrote:

Hi Boaz

I just stumpled across some very nice PostGIS functions few days ago:

http://postgis.net/docs/manual-2.2/ST_ApproximateMedialAxis.html
http://postgis.net/docs/manual-2.2/ST_StraightSkeleton.html

For ST_ApproximateMedialAxis() you need SFCGAL extension installed.

regards
Stefan

On Thu, Mar 16, 2017 at 8:06 PM, Boaz Bar Ilan mailto:boazpro...@gmail.com>> wrote:

I need to draw a center line across a polygon.  Is there a way to do
it ?
Thanks
Boaz

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Re: [Qgis-user] QGIS loaded millions of entries

[Raymond Nijssen]

Hi Tobias,

You seem to know about databases. For me, when my data passes around 1 
million records, I turn to work directly in the database (using pgadmin) 
and only use qgis for visualising the results.


Regards,
Raymond





On 04-03-17 09:28, Tobias Wendorff wrote:

Am Sa, 4.03.2017, 09:25 schrieb Nathan Woodrow:

Hmm are you sure we don't do this already?


Because the counter of attribute table increased to some hundret
thousand entries and my QGIS v2.18.3 got grayed out in the back,
leading to a crash some seconds after :(

With an unsaved project of course :)

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Re: [Qgis-user] google areal layer

[Raymond Nijssen]

Last week one of my students had the same problem during a course. But 
for me (at home now) it just downloads the contribute pack.


Didn't have time to investigate the problem during that course but it 
could have been a connection/firewall problem.


Raymond

On 01-03-17 16:49, geofelix wrote:

Hi Nyall,


Nyall Dawson wrote

On 1 March 2017 at 08:15, Boaz Bar Ilan <



boazprosie@



> wrote:

google areal doesnt match exactly with the other layers what can be done
to
match it exactly


dont use the openlayrs Plug-In. use quickmapservices instead,


Following your advice I've installed quickmapservices. For using Google
layers I have to install the "contributed services", but I get a message
"Error on getting contrib pack:  5". Maybe my
firewall is blocking installing additional code from this website? Is there
a way to install the additional services manually?
The Google Maps APIs Terms of Service (10.1) allow access only via
Javascript API. Is quickmapservices fulfilling this?

Thanks
Felix



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Re: [Qgis-user] Fwd: Import and convert points from Google Maps

[Raymond Nijssen]

Maybe your reply included the attachments from Renato? Don't know...

I'm often surprised (and frustrated) when my emails take hours before 
they show up on the list. I quit adding attachments which should help.


All the best,
Raymond


On 21-02-17 09:39, Árni Geirsson wrote:

Raymond; I did answer to the list but I got a reply saying that the
message was held pending moderator approval because of its size (over
100kB). I was surprised because I am not aware of anything that should
inflate it to that size.
I wonder if this reply goes through. - I'm selecting text-only
mode to make sure.

Arni

Árni Geirsson
Alta ehf // +354 582 5000 // +354 897 9549


On 21 February 2017 at 07:35, Raymond Nijssen  wrote:

Glad our answers helped you Renato!

@Arni, please reply to this list so everyone can read your answer. Thanks!

Raymond


On 21-02-17 01:02, Renato Saboya wrote:


Thank you so much for the answers!

Indeed, selecting EPSG:4326 did the trick. So simple! I could swear I'd
tried it before, but I must have done something wrong.

This community is fantastic! I hope I can reciprocate by helping others
like I got helped today.

Regards,
*Renato T. de Saboya*
Universidade Federal de Santa Catarina
Programa de Pós-Graduação em Arquitetura e Urbanismo (PósArq)
Urbanidades <http://urbanidades.arq.br> | Infoarq
<http://infoarq.arq.ufsc.br/> | PósArq
<http://posarq.ufsc.br/renato-t-de-saboya/> | Academia.edu
<http://ufsc.academia.edu/RenatoSaboya> | ResearchGate
<http://www.researchgate.net/profile/Renato_Saboya>


On 20 February 2017 at 17:56, Árni Geirsson mailto:a...@alta.is>> wrote:

Hi Renato
The coordinates that you have picked up are probably in WGS84
(EPSG:4326), those are the usual lat, long coordinates. However, the
image tiles are in the 3857 coordinate system. I would suggest that
you choose the most appropriate local coordinate system for your
project and then assign EPSG:4326 to your new layer, making sure
that "on the fly" coordinate conversion is selected.

Arni


Árni Geirsson
*Alta ehf* // +354 582 5000  // +354 897 9549


On 20 February 2017 at 13:26, Renato Saboya mailto:rtsab...@gmail.com>> wrote:

Dear all:
I am trying to generate a point shapefile from lat/long
coordinates obtained from Google Maps' API. They were generated
by a WordPress plugin (Gravity Forms Geolocation Add-on) and
processed in R to generate a new CSV file with the latitude and
longitude in Y and X columns, respectively. I tried to import
them to QGIS using "Add delimited text layer..." and EPSG 3857,
which I found online to be the EPSG of Google Maps. I now want
to convert this layer / shape to UTM in order to integrate it
with my other layers.

The points are created correctly, apparently. When I check their
coordinates and compare to the ranges of values in Google Maps,
they seem ok.



However, if I try to load another shapefile of the same
location, it falls very far from the points. Similarly, If I try
to load a map from QuickMapServices, it doesn't work:
"/QuickMapServices: Failed to download all 1 files. - Google
Satellite/".

When I save the point shape to UTM (EPSG 31982) to check the
coordinates, the values are not coherent with other shapes of
the same location:

Converted coordinates:


What the coordinates should look like (approximate values):

I also tried inverting the values of lat / long to x and y, to
no avail.

Any thoughts would be highly appreciated!
Thanks in advance.
Regards,
*Renato T. de Saboya*
Universidade Federal de Santa Catarina
Programa de Pós-Graduação em Arquitetura e Urbanismo (PósArq)
Urbanidades <http://urbanidades.arq.br> | Infoarq
<http://infoarq.arq.ufsc.br/> | PósArq
<http://posarq.ufsc.br/renato-t-de-saboya/> | Academia.edu
<http://ufsc.academia.edu/RenatoSaboya> | ResearchGate
<http://www.researchgate.net/profile/Renato_Saboya>



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Re: [Qgis-user] Fwd: Import and convert points from Google Maps

[Raymond Nijssen]

Glad our answers helped you Renato!

@Arni, please reply to this list so everyone can read your answer. Thanks!

Raymond


On 21-02-17 01:02, Renato Saboya wrote:

Thank you so much for the answers!

Indeed, selecting EPSG:4326 did the trick. So simple! I could swear I'd
tried it before, but I must have done something wrong.

This community is fantastic! I hope I can reciprocate by helping others
like I got helped today.

Regards,
*Renato T. de Saboya*
Universidade Federal de Santa Catarina
Programa de Pós-Graduação em Arquitetura e Urbanismo (PósArq)
Urbanidades  | Infoarq
 | PósArq
 | Academia.edu
 | ResearchGate



On 20 February 2017 at 17:56, Árni Geirsson mailto:a...@alta.is>> wrote:

Hi Renato
The coordinates that you have picked up are probably in WGS84
(EPSG:4326), those are the usual lat, long coordinates. However, the
image tiles are in the 3857 coordinate system. I would suggest that
you choose the most appropriate local coordinate system for your
project and then assign EPSG:4326 to your new layer, making sure
that "on the fly" coordinate conversion is selected.

Arni


Árni Geirsson
*Alta ehf* // +354 582 5000  // +354 897 9549


On 20 February 2017 at 13:26, Renato Saboya mailto:rtsab...@gmail.com>> wrote:

Dear all:
I am trying to generate a point shapefile from lat/long
coordinates obtained from Google Maps' API. They were generated
by a WordPress plugin (Gravity Forms Geolocation Add-on) and
processed in R to generate a new CSV file with the latitude and
longitude in Y and X columns, respectively. I tried to import
them to QGIS using "Add delimited text layer..." and EPSG 3857,
which I found online to be the EPSG of Google Maps. I now want
to convert this layer / shape to UTM in order to integrate it
with my other layers.

The points are created correctly, apparently. When I check their
coordinates and compare to the ranges of values in Google Maps,
they seem ok.



However, if I try to load another shapefile of the same
location, it falls very far from the points. Similarly, If I try
to load a map from QuickMapServices, it doesn't work:
"/QuickMapServices: Failed to download all 1 files. - Google
Satellite/".

When I save the point shape to UTM (EPSG 31982) to check the
coordinates, the values are not coherent with other shapes of
the same location:

Converted coordinates:


What the coordinates should look like (approximate values):

I also tried inverting the values of lat / long to x and y, to
no avail.

Any thoughts would be highly appreciated!
Thanks in advance.
Regards,
*Renato T. de Saboya*
Universidade Federal de Santa Catarina
Programa de Pós-Graduação em Arquitetura e Urbanismo (PósArq)
Urbanidades  | Infoarq
 | PósArq
 | Academia.edu
 | ResearchGate




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Re: [Qgis-user] Fwd: Import and convert points from Google Maps

[Raymond Nijssen]

The coordinates in your screenshot (-48 -27) seem decimal lat lon 
coordinates (wgs84, epsg:4326). Somewhere in the south of Brazil?


Can you provide some coordinates straight from your csv? Just post the 
first 2 lines of the csv file.


Raymond


On 20-02-17 14:26, Renato Saboya wrote:

Dear all:
I am trying to generate a point shapefile from lat/long coordinates
obtained from Google Maps' API. They were generated by a WordPress
plugin (Gravity Forms Geolocation Add-on) and processed in R to generate
a new CSV file with the latitude and longitude in Y and X columns,
respectively. I tried to import them to QGIS using "Add delimited text
layer..." and EPSG 3857, which I found online to be the EPSG of Google
Maps. I now want to convert this layer / shape to UTM in order to
integrate it with my other layers.

The points are created correctly, apparently. When I check their
coordinates and compare to the ranges of values in Google Maps, they
seem ok.

Inline images 1


However, if I try to load another shapefile of the same location, it
falls very far from the points. Similarly, If I try to load a map from
QuickMapServices, it doesn't work: "/QuickMapServices: Failed to
download all 1 files. - Google Satellite/".

When I save the point shape to UTM (EPSG 31982) to check the
coordinates, the values are not coherent with other shapes of the same
location:

Converted coordinates:
Inline images 4

What the coordinates should look like (approximate values):
Inline images 5

I also tried inverting the values of lat / long to x and y, to no avail.

Any thoughts would be highly appreciated!
Thanks in advance.
Regards,
*Renato T. de Saboya*
Universidade Federal de Santa Catarina
Programa de Pós-Graduação em Arquitetura e Urbanismo (PósArq)
Urbanidades  | Infoarq
 | PósArq
 | Academia.edu
 | ResearchGate





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Re: [Qgis-user] How can I define the space between lines in a hatched fill pattern?

[Raymond Nijssen]

Hi Khandoker,

In the "Line pattern fill" dialog in the Style tab, there are options 
for distance, rotation and offset for your lines.


You can use millimeters, pixels or map units as units for the distance 
value.


Good luck,
Raymond



On 29-01-17 11:58, Khandoker Maniruzzaman wrote:

I am using hatched fill patterns for some polygons in a map. The hatch
looks okay in the map composition. But in the exported jpeg file, the
hatch lines are so close to each other, the fill looks like a shade of
grey. It is difficult to distinguish the horizontal, vertical and
diagonal hatches. Is there a way I can control the distance between
lines in the pattern?

Thanks in anticipation.

Khandoker


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Re: [Qgis-user] reclass raster nodata=0

[Raymond Nijssen]

Tusentakk Håvard, that works fine!

But still wondering why GRASS can reclass a 0=NULL, but not a NULL=0...


On 30-12-16 12:46, Havard Tveite wrote:

You could use the GRASS function r.null (available in
Processing).

Håvard

On 30. des. 2016 11:35, Raymond Nijssen wrote:

I'd like to reclass a raster that contains just cells with values nodata
and 1. (I created it by rasterizing a polygon layer.)

Now I want to change all nodata values to 0, but I cannot find any way
to do this. I tried the grass and gdal tools and the qgis raster
calculator, but without luck.

Does anyone know?

Thanks!
Raymond


PS

In fact I have 2 of these layers and I want to "union" them. So I tried:

raster1 OR raster2

in the calculator, but that only returns 1 for the cells that contain a
1 in both input rasters, resulting in the overlapping area.

By changing nodata to 0, I'm hoping to calculate:

(raster1 + raster2) ^ 0

and get my desired results.

Any ideas on this?
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[Qgis-user] reclass raster nodata=0

[Raymond Nijssen]

I'd like to reclass a raster that contains just cells with values nodata 
and 1. (I created it by rasterizing a polygon layer.)


Now I want to change all nodata values to 0, but I cannot find any way 
to do this. I tried the grass and gdal tools and the qgis raster 
calculator, but without luck.


Does anyone know?

Thanks!
Raymond


PS

In fact I have 2 of these layers and I want to "union" them. So I tried:

raster1 OR raster2

in the calculator, but that only returns 1 for the cells that contain a 
1 in both input rasters, resulting in the overlapping area.


By changing nodata to 0, I'm hoping to calculate:

(raster1 + raster2) ^ 0

and get my desired results.

Any ideas on this?
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Re: [Qgis-user] How to edit repetitive data in QGIS

[Raymond Nijssen]

Hi Charlotte,

You can use the "dissolve" tool for merging features that have value(s) 
in common. In this case the field "name" contains that value.


Go:
Vector >> Geoprocessing tools >> Dissolve...
Remove the check mark at "Dissolve all (do not use field)"
Add the field "name" to unique ID fields list
Run

This worked for me. Only drawback is that all roads without a name were 
merged together. If you mind that, you can select and remove them before 
running the dissolve algorithm.


Good luck,
Raymond




On 15-12-16 07:07, Matt Boyd wrote:

Can you select the features you want by a function using the same street
name, then
Edit - merge selected features.

On 15 Dec 2016 08:40, "Charlotte Wolter" mailto:techl...@techlady.com>> wrote:

Hello, all,

I created a query for data from OpenStreetMap using
overpassturbo.eu . I needed major street,
so used the expression highway=primary. The area was a large section
of Los Angeles, about 1/6th of the city, the area called South Bay.
I got the steeets I need, no problem. But, I also got the
street names repeating over and over, because the streets are broken
into segments by changes, such as a bridge or a change in speed
limit, etc., etc.
I am looking for a way to solve this issue, such as editing
the data to remove the names from some of these segments. I have
opened the data in the "Attributes Table," but I can't seem to edit
it there (which would be handy). So, if QGIS does not support
editing a data file, is there some other way to do it?
Thanks!

Charlotte Wolter



Charlotte Wolter
927 18th Street Suite A
Santa Monica, California
90403
+1-310-597-4040 
techl...@techlady.com 
Skype: thetechlady


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Re: [Qgis-user] Krigging

[Raymond Nijssen]

You can find 4 types of kriging algorithms in the SAGA library:

http://docs.qgis.org/2.14/en/docs/user_manual/processing_algs/saga/kriging.html?highlight=kriging

I have never tried it. Couldn't you find it or is it not working?

Good luck!

Raymond

On 09/13/2016 06:46 PM, Bia wrote:

Hi,

someone managed to make an interpolation using kriging in qgis (a
coherent interpolation)?

tk u!

--
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Re: [Qgis-user] Export plugins list

[Raymond Nijssen]

Never tried, but i expect that you can just copy the contents of your
old "plugins" directory to your new. In my case this is:

~/.qgis2/python/plugins/

Raymond



On 14-04-16 11:21, Joris Hintjens wrote:
> No answer anyone?
> I had the same issue some months ago. Did it manually. (print screen of 
> plugin list to transmit the info)
> 
> greets
> joris
> 
>> Op 11 apr. 2016, om 10:33 heeft ah franz  het volgende 
>> geschreven:
>>
>> it's possible make a command to export the list (xml) of installed plugins 
>> ?i.e. for transfer in other pc .
>>
>> Thank's Franz
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Re: [Qgis-user] Insert backgroung color in a cell

[Raymond Nijssen]

Hi Giacomo,

You can do it but it is a fairly new feature. I think introduced in 2.12.

In the attribute table window on the top right corner is a button with
coloured blocks which opens the 'conditional format rules' panel. I
think you will find your way from there.

Does not (yet) seem to work in the print composer though...

Good luck,
Raymond


On 19-01-16 15:30, Giacomo Minotti wrote:
> Hi all,
> in a shp file is it possible to color the cells of a column through one
> generic condition, for example the strings insert in another column
> (1-green, 2, red, 3-yellow,ect...)?
> I'd like to have the color column in a table inside the print composer,
> with other columns of other description.
> Thanks
> Giacomo Minotti
> 
> 
> 
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Re: [Qgis-user] Making oblique maps in Qgis: is it possible?

[Raymond Nijssen]

Hi Jens,

Could you post an example of what you are looking for?

Actually, I don't think QGIS can do such maps but maybe it is possible 
using some user defined map projection.


Also have a look at the Globe plugin:
https://www.youtube.com/watch?v=ZDDe-sVogNU

Regards,
Raymond




On 11-09-15 11:00, Jens Verwaerde | Natuurpunt CVN wrote:

I'd like to make an oblique (bird's eye) view of some of my maps.
Theoretically this is possible by exporting a map to an image manipulation
program and then using a tilting function, but ... that's an extra step and
... everything on the map is then "obliqued" including labels etc.

But I don't want everything to become oblique; text labels, arrows etc.
should stay "normal" and floating in the air above the map, so only the map
should be oblique.

Also is it possible to have diagrams that "point from the sky" to the
location on the oblique map instead of also becoming oblique?



Jens Verwaerde
lesgever natuurbeheer en natuurfotografie

t: 015 29 72 29 | gsm: 0491 15 03 57


Website: http://cvn.natuurpunt.be
Facebook: www.facebook.com/NatuurpuntCVN



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Re: [Qgis-user] mailing list

[Raymond Nijssen]

Hi Apee,

You can only do that yourself:

https://www.qgis.org/en/site/getinvolved/mailinglists.html

Good luck,
Raymond


On 30-07-15 04:20, Amrit Sharma wrote:

Please put me in your mailing list.

BEST
Apee



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Re: [Qgis-user] Cannot download 64 bit windows version of 2.10

[Raymond Nijssen]

That link works fine for me as well.

Could it be something prevents you from downloading an exe file?

Raymond

On 22-07-15 15:26, Chris Buckmaster wrote:

Hi Werner

That’s what I did (Installation Downloads - Download for Windows - 64 bit 
standalone installer), the page then says 'waiting for norbit.de' in the 
progress bar at the bottom and nothing happens. I checked the downloads 
directory and the exe file isn't available (as far as I can see):-

http://qgis.org/downloads/QGIS-OSGeo4W-2.10.1-1-Setup-x86_64.exe

Thanks




-Original Message-
From: Werner Macho [mailto:werner.ma...@gmail.com]
Sent: 22 July 2015 14:23
To: Chris Buckmaster
Cc: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] Cannot download 64 bit windows version of 2.10

Hi!
I am not sure what you mean -
Browsing the QGIS page I immediately got to 
http://qgis.org/en/site/forusers/download.html
-> QGIS 2.10.1 64 bit for windows - click on it -> and ... download ..

Where did you search for it?

regards
Werner

On Wed, Jul 22, 2015 at 3:19 PM, Chris Buckmaster 
 wrote:

Hi



I cannot seem to download the 64 bit windows version for 2.10 – I have
looked in the downloads directory and the exe file doesn’t seem to be
listed? Is there anywhere else I can download it please?



Thanks, Chris






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Re: [Qgis-user] get length of "custom" geometry in expression

[Raymond Nijssen]

Kristian, thanks for your explanation. I will check the function editor.

Richard, your solution would not solve my problem as I still use 
$length. But as a workaround I saved my layer in the CRS I needed and 
used the $length function in the label expression.


Regards,
Raymond

On 06-07-15 09:04, Kristian Evers wrote:

I think your problem is that length() returns the length of a text-string, and 
not the length of a geometry. As the geometry isn't a string, the output is 0.
As far as I can see it is not possible to do what you want with the default 
functions in the field calculator. With a bit of python in the function editor 
it should be possible.

Kristian

-Oprindelig meddelelse-
Fra: qgis-user-boun...@lists.osgeo.org 
[mailto:qgis-user-boun...@lists.osgeo.org] På vegne af Raymond Nijssen
Sendt: søndag 05. juli 2015 19:49
Til: qgis-user@lists.osgeo.org
Emne: [Qgis-user] get length of "custom" geometry in expression

Im' trying to do this in my label expression:

length($geometry)

but it always returns 0. Is there a way I can do that? I tried
getlength() and getLength() as well, without luck.

I know there is the $length which works on the geometry right away, but
i am performing a transformation first:

length( transform($geometry, 'EPSG:3857', 'EPSG:3006') )

Hoping anyone can help!

Raymond

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[Qgis-user] get length of "custom" geometry in expression

[Raymond Nijssen]

Im' trying to do this in my label expression:

length($geometry)

but it always returns 0. Is there a way I can do that? I tried 
getlength() and getLength() as well, without luck.


I know there is the $length which works on the geometry right away, but 
i am performing a transformation first:


length( transform($geometry, 'EPSG:3857', 'EPSG:3006') )

Hoping anyone can help!

Raymond

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Re: [Qgis-user] Question

[Raymond Nijssen]

Hi Peter,

I could help, and I know some others. But I'm not in Holland right now 
while I'm attending the QGIS developer meeting in Denmark. :)


Just call or email me if you are interested.

Raymond



On 21-05-15 16:31, peter spence wrote:

Dear Qgis Users,

Is there anyone in Holland who can help with Qgis.

Thanks!

Peter




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Re: [Qgis-user] Which settings for mesuring tool?

[Raymond Nijssen]

Hi Joris,

The (Spherical) Mercator projection has huge disturbances in size the 
further you get from the equator. Try usiing the national projection for 
Portugal?


Good luck,
Raymond


On 17-05-15 21:41, Joris Hintjens wrote:

Hello
I have 2 point  in Portugal
my project CRS is pseudo Mercator (EPSG 3857)
When I create a buffer of 30 km around my points layer cars is also EPSG 3857), 
I get Two nice circles (layer also CRS 3857). When i measure the circles, they 
are 45 km in diameter. What can be wrong?

What settings shouldI in general use for the measuring tool?

thanks for your comments
Joris

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Re: [Qgis-user] multiple labels display

[Raymond Nijssen]

http://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/vector_properties.html#labeling-with-expressions

On 23-04-15 15:53, Andreas Neumann wrote:

Hi,

You can do either:

* concatenate multiple attributes in one label, even with line breaks
* or load the same layer twice with different label settings

Other than that there is no way to have two different label settings on
the same layer while the layer is only loaded once.

Andreas

On 23.04.2015 15:34, Giacomo Minotti wrote:


I'd like to display on my screen more than one label associated with a
shp point file.
In property/labels I haven't find this option.
Thanks bye
Giacomo

Il 23/Apr/2015 15:26, "Anita Graser" mailto:anitagra...@gmx.at>> ha scritto:

That depends on exactly what you mean.

On Apr 23, 2015 3:04 PM, "Giacomo Minotti"
mailto:giacominott...@gmail.com>> wrote:

Hi all,
can I display more labels of a SHP?
Thanks
Giacomo Minotti

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Re: [Qgis-user] Attribute copy from point to polygon

[Raymond Nijssen]

http://www.qgistutorials.com/nl/docs/performing_spatial_joins.html

ps use google too ;)

On 12-03-15 12:22, Joris Hintjens wrote:

Hi,
I have a pointlayer and polygon layer in .SHP.
I need to copy an attribute from the points within each polygon to the
polygon layer.
Any suggestions on how to do this?

thanks
Joris



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Re: [Qgis-user] Fwd: Visualize Distance matrix

[Raymond Nijssen]

Hi Paolo,

It was just a python console script but I rewrote it to work as a 
processing script. I also add the nifty idAlexander's sql example. :)


Regards,
Raymond


On 10-03-15 10:13, Paolo Cavallini wrote:

Il 10/03/2015 09:08, Raymond Nijssen ha scritto:

Hi Joris,

I dont know about that plugin, but i would write a little script for
that like this:


Hi Raymond,
would you mind adding this as a Processing sample script?
https://github.com/qgis/QGIS-Processing
All the best, and thanks.



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Re: [Qgis-user] Fwd: Visualize Distance matrix

[Raymond Nijssen]

Hi Joris,

I dont know about that plugin, but i would write a little script for 
that like this:


# get active (point) layer as input
inputlayer = iface.activeLayer()
# create new memory layer for output
outputlayer = QgsVectorLayer("Linestring", "distance_lines", "memory")
outputprovider = outputlayer.dataProvider()
# loop all points
iter = inputlayer.getFeatures()
for feature in iter:
p1 = feature.geometry().asPoint()
iter2 = layer.getFeatures()
for feature2 in iter2:
p2 = feature2.geometry().asPoint()
if not p1 == p2:
# create new line
l = QgsGeometry.fromPolyline([p1,p2])
feat = QgsFeature()
feat.setGeometry(l)
outputprovider.addFeatures([feat])
outputlayer.commitChanges()
outputlayer.updateExtents()
# add to map
QgsMapLayerRegistry.instance().addMapLayer(outputlayer)

Good luck,

Raymond


On 09-03-15 18:18, Joris Hintjens wrote:

Thanks Raymond, but what I need is the distance from every point in a layer to 
every other point. That is what “distance matrix” gives me.
Then, I want to plot every distance line (as a seperate layer?) on the map.

Joris


Begin doorgestuurd bericht:

Datum: 9 maart 2015 15:53:56 CET
Van: Raymond Nijssen 
Aan: qgis-user@lists.osgeo.org
Onderwerp: Antw.: [Qgis-user] Visualize Distance matrix

Hi Joris,

Not sure if I understand your question, but if you want to do a distance 
calculation for all points in a point layer to a certain location you can use 
the field calculator in the attribute table window.

The expression should be:

distance($geometry ,geomFromWKT( 'POINT(0 0)' ))

to calculate all distances to coordinate 0,0.

Hope this helps you.

Raymond



On 09-03-15 15:13, Joris Hintjens wrote:

I feel stupid: I am stuck with what seems a basic operation..
I have a points layer, of which I want to visualize the distance matrix.
I can create the martini CSV.
I cannot create a distance hub layer with the MMQGIS plugin with From and To 
point from within  the same layer.

Any help on how I ca get this result on my map?

PoinA——>PointB
xxx Meter

and this for the entire matrix


thanks
Joris
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Re: [Qgis-user] Visualize Distance matrix

[Raymond Nijssen]

Hi Joris,

Not sure if I understand your question, but if you want to do a distance 
calculation for all points in a point layer to a certain location you 
can use the field calculator in the attribute table window.


The expression should be:

distance($geometry ,geomFromWKT( 'POINT(0 0)' ))

to calculate all distances to coordinate 0,0.

Hope this helps you.

Raymond



On 09-03-15 15:13, Joris Hintjens wrote:

I feel stupid: I am stuck with what seems a basic operation..
I have a points layer, of which I want to visualize the distance matrix.
I can create the martini CSV.
I cannot create a distance hub layer with the MMQGIS plugin with From and To 
point from within  the same layer.

Any help on how I ca get this result on my map?

PoinA——>PointB
xxx Meter

and this for the entire matrix


thanks
Joris
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Re: [Qgis-user] Reminder: Call for QGIS release name suggestions

[Raymond Nijssen]

Having had two great hackfests in Essen I would suggest that is the 
place to name the next QGIS release after.


I don't have any old map of Essen, but maybe some (German) community 
members could provide it. Or some people here will help us:

https://www.essen.de/rathaus/aemter/ordner_62/KartenHistorische.de.html

Could possibly conflict with:
http://www.essenvision.com/


Btw, I wondered which names have already been used and found them here:
http://en.wikipedia.org/wiki/QGIS


Regards,
Raymond




On 31-12-14 17:35, Anita Graser wrote:

Dear QGIS community,

I'd like to remind you to please send in your ideas for future release names.

--

CALL for QGIS RELEASE NAME SUGGESTIONS

The following rules apply:
- The suggestion should be the name of a place.
- The suggestion must not be the name of a software product. (Please
try to do some Google searches before submitting the suggestion.)
- Each suggestion must come with a suitable map image for splash
design. (Make sure that we have the rights to use the image. Since the
splash is also printed in our user guide, a minimum resolution of
3000x2000 px is necessary.)
- Locations of developer meetings have priority.

Submission format: Send an email with a short description of your
suggestion and a link to a ZIP file containing the map image(s) to
anitagra...@gmx.at

The PSC will pick the release names. The deadline for the 2.8 release
is the 1st of January 2015. If there are multiple good suggestions, we
might announce names for later releases as well.

--

Thanks you and happy 2015!
Anita


--
anitagraser.com
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Re: [Qgis-user] Join Table

[Raymond Nijssen]

Could it be that the types of your code fields do not match? Numbers can 
be stored as texts (strings) or integers of floating point values.


For example:
'5'
5
5.0

Regards,
Raymond


On 10-10-14 12:30, labiancamaril...@libero.it wrote:

Dear all,
I have a problem.
I should join a shapefile that contains code and name of the italian provinces
with a sheet (excel) containing code for each province and name with
corresponding indicators.
I used "Join" and I tried to combine the shapefile already exists with
indicators but the values aren't assigned to corresponding of each province.
I want to ask what could be the reason why the values ​​are not united?
Thanks
Marilena
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Re: [Qgis-user] transparency for QGIS backgroud color

[Raymond Nijssen]

Thanks Nathan!

That is exactly what I was looking for. Didn't know it was there, in the 
composer.


Raymond


On 04-08-13 13:53, Nathan Woodrow wrote:
>> Unfortunately this is not possible. I could use this as well, 
making it possible to put two map-items on top of each other in a 
composer.


The composer map view already support alpha for background colour in 2.0

http://i.imgur.com/MoTOVLd.png

Alpha in the main QGIS map window background colour isn't supported yet.

- Nathan


On Sun, Aug 4, 2013 at 9:18 PM, Raymond Nijssen <mailto:r.nijs...@terglobo.nl>> wrote:


Hi Otto,

Unfortunately this is not possible. I could use this as well,
making it possible to put two map-items on top of each other in a
composer.

Currently, in the options dialog, the "select color" (yellow) has
a color-dialog containing the alpha channel. The "background
color" has a dialog without it.

Raymond




On 31-07-13 17:52, Otto Dassau wrote:

Hi,

is it possible to set the background color in QGIS
transparent. Can it be
done in settings - project properties - backgroud color?

Thanks
Otto
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Re: [Qgis-user] transparency for QGIS backgroud color

[Raymond Nijssen]

Hi Otto,

Unfortunately this is not possible. I could use this as well, making it 
possible to put two map-items on top of each other in a composer.


Currently, in the options dialog, the "select color" (yellow) has a 
color-dialog containing the alpha channel. The "background color" has a 
dialog without it.


Raymond



On 31-07-13 17:52, Otto Dassau wrote:

Hi,

is it possible to set the background color in QGIS transparent. Can it be
done in settings - project properties - backgroud color?

Thanks
Otto
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Re: [Qgis-user] QGIS rotate entire rendered map

[Raymond Nijssen]

Hi Bjorn,

You can rotate your map in the composer only. First, add a map to your 
layout. After selecting it you can edit the rotation value in the tab 
"Item properties".


I don't know when this feature was added, but it has been in QGIS master 
for a while.


Good luck!
Raymond


On 07/20/2013 12:01 PM, Bjorn Nyberg wrote:

Hej,
I am slowly trying to move away from arcgis to open source software 
like grass and qgis but there is one feature that I really like in 
arcgis that I cant seem to find in QGIS in my transition. Simply 
enough, i'd like to rotate all layers in the current rendered window 
to say 90degrees relative to north as I map a feature (note I am not 
talking about rotating the final map output as suggested here 
http://gis.stackexchange.com/questions/54060/can-qgis-1-8-0-mac-rotate-the-entire-view-of-a-project).//I 
use this feature quiet a lot in arcgis (data frame properties -- 
general -- rotation) to map especially elongated feature at a 
resolution that otherwise won't fit on my screen and I assume that 
there must be something equivalent in qgis that I have simply not noticed.


Cheers,
Bjorn



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Re: [Qgis-user] cut several segments into a polygon

[Raymond Nijssen]

Jake,

It's still called 1.9 and you can download it here:

http://qgis.org/downloads/weekly/

Raymond

On 09-07-13 17:07, Jake Maier wrote:

Hi Bernhard,
Thanks for your help, but I'm still on 1.8 and frankly I can't find the
place to download 2.0 for windows. I googled it several times, trying to
find the nightlies, but I seem to get old, slow, and feeble. I so far was
not able to get 2.0 for windows 7.
Jake
  


-Original Message-
From: qgis-user-boun...@lists.osgeo.org
[mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Bernhard Ströbl
Sent: Tuesday, July 09, 2013 9:47 AM
To: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] cut several segments into a polygon

Hi Jake,

I had a plugin in preparation that amongst others does exactly what you
want: within an editing session cut out from polygons in editable theme with
selected polygons from another theme.
The plugin is called DigitizingTools and is planned to contain more tools in
the future. I uploaded it to the plugin repository just now, feel free to
give it a try and report any problems.
It is marked as experimental (because it is not well tested right now) and
only works with current master (aka QGIS 2).

Bernhard

Am 09.07.2013 15:11, schrieb Randal Hale:

Hey Jake,

Here's how I typically add a cut to an existing stand (or depending on
who you stand in front of - regeneration cut or clear cut).

1. Select all of your clearcuts in the stand.
2. IN the QGIS menu go to Vector -> geoprocessing -> difference 3.
Both the input and the difference layer will be the name of your
shapefile with the stand in it.
4. Uncheck "Use only selected features" under Input Vector Layer 5.
Make sure "Use only selected features" is checked under difference
layer 6. Create an output shapefile and run.

You should have a new stand with multiple "holes" cut into it so you
get the right acreage.

Randy





On Tue, Jul 9, 2013 at 7:42 AM, Jake Maier mailto:j...@jmforestry.com>> wrote:

 How can I create a polygon with several areas cut out. The cut out
 areas are all contained in polygons of the same shape file.

 I have a large forest stand and contained in it are many smaller
 stands. 

 Thank you for your help

 Jake

 __ __


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423.653.3611 rjh...@northrivergeographic.com

twitter:rjhale
http://about.me/rjhale




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Re: [Qgis-user] Add XY data

[Raymond Nijssen]

check this:

http://www.gistutor.com/quantum-gis/19-beginner-quantum-gis-tutorials/59-how-to-create-a-shapefile-from-xy-data-using-qgis.html


On 05/21/2013 04:58 PM, AGBO Yawo Ségbéaya wrote:

Dear

do you mind show me howto add XY data in Map in QGIS? Thanks.
*Agbo Yawo Ségbéaya*
Géologue Explorateur
Chef de Dvision Prospection Minière
Direction des Recherches Géologiques et Minières (DRGM) de la 
Direction Générale des Mines et de la Géologie (DGMG)
06 Avenue Sarakawa, BP: 356 Lomé-Togo, Tel Service:+22822213001; Fax : 
+22822213193, Mobile : +22890396980 Skype: 
segbeaya74;E-mail:_agboyawo@yahoo.fr_ou yaw...@hotmail.fr 




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Re: [Qgis-user] clipping problem

[Raymond Nijssen]

Hi Sandy,

Problem 1)
I'd suggest you copy the layer and use a subset filter (in the layer 
properties 'general' tab) to filter out the data you do not need. Then 
label that layer.


Problem 2)
Importing excel should be possible in 1.8 but I never tried.
(http://www.qgis.nl/2012/07/17/direct-gebruiken-van-data-uit-excel-bestand/?lang=en)

Hope this helps!

Raymond



On 05/20/2013 08:37 AM, sandy dove wrote:

Hi All
Iam hoping to get a reply for some assistance urgently and have 
already tried sending on this user list but did not get any feedback. 
If anyone can assist I would be most appreciative.


I have recently downloaded Quantum GIS 1.8 and am trying to learn at a 
rapid rate!


I have to do teach it to students at the University of Western Cape 
(SA) in June. We teach them the different Open Source GIS programs to 
assist in Health Analysis.


Two problems:

1)A problem I have come across is where do I set up expressions for 
example in labelling - I have used the button in the toolbar 'new 
labelling button' and then tried to use the expression. For example I 
just want certain labels to appear eg  Name = "Nome". It does not 
work? How can I use this expression box under this label tool to label 
certain things?


2)Also how do I bring in an excel table and join this table to a 
shapefile - Can I join them in Quantum?


Much appreciated

Sandy



On Sun, May 19, 2013 at 10:58 PM, Jake Maier > wrote:


Hi

I didn't think I would have problems with clipping. In the past it
always worked properly. But now I have a soil layer, and created a
rectangle as a clip layer.

Everything seems normal and goes like expected until I open the
new, clipped layer and it's empty.

Would anybody please have an idea what's going on. What do I overlook?

Thank you very much for your time.

Jake


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Cell: 083 662 0151
Skype: Sandy.Dove
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[Qgis-user] update composer and export as png, using python

[Raymond Nijssen]

For creating a map animation I've made a python script that updates my 
layer's subset filter many times. It also updates my mapCanvas and the 
title label in my composer.


Now I'd like to automatically update the map in my composer as well, and 
export my entire composer as a png file afterwards.


I've been checking the cookbook and (c++) api docs very well but really 
cannot find a way that works...


Hoping any one can help.

Thanks,
Raymond

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Re: [Qgis-user] Colouring lines

[Raymond Nijssen]

Hi Brett,

Yes you show them in different colours using a 'categorized' style.

However, you cannot save these colours in the shapefile since the format 
does not support styling. But you have a few options:


1. Save your QGIS project, including the coloured layer, as a project 
file (*.qgs)

2. Save your layer style as a QGIS map layer file (*.qml)

And hopefully soon in a new version of QGIS (check: 
http://hub.qgis.org/issues/859):


3. Add an extra field to your shapefile in which you store the rgb 
colour codes and create a data defined colour style on it.


Good luck,
Raymond


On 03/22/2013 07:51 AM, Brett Adams wrote:


Hi Folks.

I have 4 separate lines in one shp file. Can I colour them each 
differently and give them each  a different pen style?  Will these 
characteristics them be saved when into the shp file?


Thanks in advance.

*Brett Adams*

*Spinifex Geophysics*

*0438 861 974*



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Re: [Qgis-user] How to open a file geodatabase?

[Raymond Nijssen]

I think it's here:

http://www.qgis.nl/2012/07/06/esri-file-based-geodatabases-en-oracle-connecties-openen-met-qgis/?lang=en

Raymond

On 10/17/2012 04:57 PM, boesiii wrote:

Is Qgis able to open a file geodatabase?  When I try and open a geodatabase I
get an error message stating file.gdb is not a vaild or recogized data
source.  I am using Qgis 1.8 on windows 7 64bit and in the about box, Gdal
is at version 1.9.1.



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Re: [Qgis-user] Windows 7 CPU Quad-Core CPU usage

[Raymond Nijssen]

Matej,

You have 4 cores (=quad). QGIS uses one of them for 100%.

Raymond

> Hi,
>
> is it normal that QGIS is using only 25% of CPU at most, when looking
> at the Task Manager in Windows 7?
>
> Thanks,
> Matej
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[Qgis-user] Drawing ellipses

[Raymond Nijssen]

For a research project I need to draw ellipses on top of a polygon map 
based on a width and height field in my table. I was really happy to 
find out that QGIS has this functionality. Unfortunately I don't get it 
to work.


I managed to draw the polygons and draw ellipses on top of them, using 
two rules (rule based symbology). I use the "centroid fill" with an 
"ellipse marker". The marker initially has a fixed size (4x3) but I like 
to set these by two fields in the "data defined settings" tab. I can 
choose the fields, but their values do not overrule the 4x3 standard 
settings.


Can anybody verify this behaviour or tell me what I'm doing wrong?

I'm using:

QGIS version



1.8.0-Lisboa



QGIS code revision



exported

Compiled against Qt



4.7.2



Running against Qt



4.7.2

Compiled against GDAL/OGR



1.6.3



Running against GDAL/OGR



1.6.3

GEOS Version



3.2.0



PostgreSQL Client Version



8.4.11

SpatiaLite Version



2.4.0



QWT Version



5.2.0



Thanks,
Raymond

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Re: [Qgis-user] tooltips not showing

[Raymond Nijssen]

Richard,

Yes, I'm refering to the tooltips for the buttons, showing hints of what
the button does.

Already tried googling for qt/ubuntu problems but not find much. The weird
thing is that other qt applications work fine. They show black boxes with
white texts in my system.

I do not compile from source but I'm using the nightly builds from:
http://qgis.org/debian-nightly natty main

updating about once a week. My current version shown in synaptic is:
1.9.90+git20120613+ff87deeñatty1

Regards,
Raymond



> Hi Raymond,
>
> which tooltips are you referring to? The tooltips for the buttons etc
> (if so I would blame Ubuntu, google "qt tooltips ubuntu 11.04" )?
>
> I'm running 'Master' (formerly, in ancient svn times, called 'Trunk' ;-)
> here on Ubuntu 11.10 without problems.
> By the way, this is what I see if I compile/run Master:
>
> QGIS version 1.9.0-Master
> QGIS code revision f987e64
> Compiled against Qt 4.7.4
> Running against Qt 4.7.4
> Compiled against GDAL/OGR 1.9.1
> Running against GDAL/OGR 1.9.1
> GEOS Version 3.3.3
> PostgreSQL Client Version 9.1.4
> SpatiaLite Version 3.1.0-RC2
> QWT Version 5.2.2
>
> Are you compiling the 1.8-branch maybe?
>
> Regards,
>
> Richard Duivenvoorde
>
> On 07/03/2012 09:55 PM, Raymond Nijssen wrote:
>> My QGIS does not display tooltips (any more). The only thing that shows
>> up is a white (or light yellow?) bar at the place where the tooltip
>> should be. Other QT applications seem to work fine on my system,
>> including QGIS Browser.
>>
>> I'm using the "trunk" version:
>>
>> QGIS-versie
>>
>>
>>
>> 1.8.0-Lisboa
>>
>>
>>
>> QFIS code revisie
>>
>>
>>
>> exported
>>
>> Gecompileerd tegen Qt
>>
>>
>>
>> 4.7.2
>>
>>
>>
>> Gebruikt nu Qt
>>
>>
>>
>> 4.7.2
>>
>> Gecompileerd tegen GDAL/OGR
>>
>>
>>
>> 1.6.3
>>
>>
>>
>> Gebruikt nu GDAL/OGR
>>
>>
>>
>> 1.6.3
>>
>> GEOS-versie
>>
>>
>>
>> 3.2.0
>>
>>
>>
>> PostgreSQL Client Versie
>>
>>
>>
>> 8.4.11
>>
>> SpatiaLite-versie
>>
>>
>>
>> 2.4.0
>>
>>
>>
>> QWT versie
>>
>>
>>
>> 5.2.0
>>
>>
>> on
>>
>> Ubuntu 11.04.
>>
>> This problem has been there for at least several weeks, but since I know
>> most buttons/icons it didn't really bother me yet. Hope anyone can help!
>>
>> Regards,
>> Raymond
>>
>>
>>
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>
>
>


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[Qgis-user] tooltips not showing

[Raymond Nijssen]

My QGIS does not display tooltips (any more). The only thing that shows 
up is a white (or light yellow?) bar at the place where the tooltip 
should be. Other QT applications seem to work fine on my system, 
including QGIS Browser.


I'm using the "trunk" version:

QGIS-versie



1.8.0-Lisboa



QFIS code revisie



exported

Gecompileerd tegen Qt



4.7.2



Gebruikt nu Qt



4.7.2

Gecompileerd tegen GDAL/OGR



1.6.3



Gebruikt nu GDAL/OGR



1.6.3

GEOS-versie



3.2.0



PostgreSQL Client Versie



8.4.11

SpatiaLite-versie



2.4.0



QWT versie



5.2.0


on

Ubuntu 11.04.

This problem has been there for at least several weeks, but since I know 
most buttons/icons it didn't really bother me yet. Hope anyone can help!


Regards,
Raymond

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