[Qgis-developer] Move feature causes QGIS to crash

[Mark Wynter]

I’m running QGIS2.8.1 on Centos6.5

If I add a points table from PostGIS, hit edit, and attempt to move the 
location of a point feature:

Method 1 - use the ‘node' tool to drag a point to a new location.  This works.
Method 2 - use the ‘move feature’ tool - as soon as I click on the point to be 
moved, QGIS crashes.

This is message returned on the CLI.
qgis: GeometryComponentFilter.cpp:34: virtual void 
geos::geom::GeometryComponentFilter::filter_ro(const geos::geom::Geometry*): 
Assertion `0' failed.
Aborted

This is my QGIS setup
QGIS version2.8.1-Wien  QGIS code revision  exported
Compiled against Qt 4.8.5   Running against Qt  4.8.5
Compiled against GDAL/OGR   1.11.1  Running against GDAL/OGR1.11.1
Compiled against GEOS   3.4.2-CAPI-1.8.2Running against GEOS
3.4.2-CAPI-1.8.2 r3921
PostgreSQL Client Version   9.3.5   SpatiaLite Version  2.4.0
QWT Version 6.0.1   PROJ.4 Version  480
QScintilla2 Version 2.8.4

Has anyone else encountered this… >
Not sure how reproduceable its going to be….?

Mark
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Re: [Qgis-developer] Using QGIS for parallel processing

[George Silva]

What kind of parallel processing do you need?

For example, rendering in QGIS is done in parallel.

Do you need to do parallel processing for topological testing?

Without more information, I can't say much more.

George

On Fri, Mar 20, 2015 at 5:05 PM, Patricia Carbajales 
wrote:

>  Hello,
>
> I am interested in using High Performance Computing resources with
> geospatial data. Since QGIS is cross-platform, I wonder if it would be
> possible to install QGIS in our Linux cluster to run parallel processes.
>
> I looked online for any information and couldn't find an answer.
>
> Any response will be much appreciated.
>
> Regards,
>
> Patricia
>
>
>
>
>
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-- 
George R. C. Silva
SIGMA Consultoria

http://www.consultoriasigma.com.br/
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[Qgis-developer] Using QGIS for parallel processing

[Patricia Carbajales]

Hello,
I am interested in using High Performance Computing resources with geospatial 
data. Since QGIS is cross-platform, I wonder if it would be possible to install 
QGIS in our Linux cluster to run parallel processes.
I looked online for any information and couldn't find an answer.
Any response will be much appreciated.
Regards,
Patricia


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[Qgis-developer] QGIS plugin : connect to polygonselect Maptool signals

[Cev Hillan]

Hello to all !

Working on a new QGIS plugin I am trying to connect a custom function to 
the mouse right-clic signal, while using the polygon select maptool.


I have activated the maptool through :

|def  run(self):
self.iface.actionSelectPolygon().trigger()|

And would now like to connect my selectSite function to a 
canvasReleaseEvent or similar signal. From an interesting tutorial here 
 I 
adapted the code and tried the line below which failed :


|def  run(self):
self.iface.actionSelectPolygon().trigger()
result=  QObject.connect(self.canvas.mapTool(),  
SIGNAL("canvasReleaseEvent()"),  self.selectSite)

def  selectSite(self):
QMessageBox.information(  self.iface.mainWindow(),"Info",  "in selectSite 
function"  )|

Any ideas or hints on how I can achieve my goal ?

I understand I could reimplement my own polygon selecting tool and 
customize it, but it seems like an overkill and am looking for something 
simpler - if possible.
Is there another way around by connecting to a more generic Qt mouse 
click signal sent by canvas or Qt ?


Thanks for help.

Cev.


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Re: [Qgis-developer] login hub.qgis.org not working

[Richard Duivenvoorde]

On 20-03-15 11:11, Régis Haubourg wrote:
> Hi, 
> I'm trying to log in hub.qgis to create a bug report :
> - when having credencials typo error, I have a error message. 
> - when typing the right credencials, I have no error message but still am
> not logged in.. 

Regis,

can you sent me a private with the email address you are using to log in?

Regards,

Richard Duivenvoorde

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[Qgis-developer] User legend text from 2.4 is dropped in QGIS 2.6 / 2.8

[Régis Haubourg]

Hi, 
users found a nasty bug I couldn't find in redmine. When having 2.4 qgs
projects with user legend text and Auto Update OFF in composer's legend,
that text is not reused when opening it in QGIS  2.6 or QGIS 2.8.1. 

That leads to complete manual rebuild of legends in all composers.  That
will give severe headeachs to users here. 
Anyone confirms?

Cheers
Régis



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[Qgis-developer] login hub.qgis.org not working

[Régis Haubourg]

Hi, 
I'm trying to log in hub.qgis to create a bug report :
- when having credencials typo error, I have a error message. 
- when typing the right credencials, I have no error message but still am
not logged in.. 

Help!



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Re: [Qgis-developer] Regarding having multiple layers in print composer QGIS

[Frank Sokolic]

Hi Nancy,

Instead of labelling the polygons with the values of a single field you 
can use multiple fields by building an expression using the expression 
builder. In the Layer Label Settings dialogue you'll see the button for 
the expression builder next to the box where you choose the field.


If you have two fields, one called ID and the other NAME, then you can 
build an expression like:

 "ID"  || ' ' ||  "NAME"

If you would like these to appear on different lines then you can set 
the label to wrap on a character, e.g. an asterisk *, and then write 
your expression as:


 "ID"  || '*' ||  "NAME"

You can also insert your own text into the labels like this:

'ID: ' || "ID"  || '*Name: ' ||  "NAME"


Hope that helps.

Frank.


On 19/03/2015 20:22, Nancy wrote:

Respected Sir,

I wanted to know if we can have multiple labeling in print composer.After 
digitization i made the id's as the label now i want to have one more attribute 
as a label on the same digitized layer along with the id's as the label.

1.png and 2.png shows the 2 label's of the same vector file.Now is there any 
way to put these 2 label's one over the other with different properties( e.g 1 
label id should come in middle of layer and then 2 label shape comes somewhere 
inside the layer).

Can we do this?

Regards,
Nancy

>
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