[Qgis-user] Create new coverage

Hi, I have a shapefile which consists of a grid (polygons), each of which is 1 quarter degree in extent. I would like to create a second coverage where each polygon is again subdivided into smaller polygons, each being 5 degrees by 5 degrees in extent. Essentially each degree square would

[Qgis-user] .qpj files

I have a number of these files, associated with .cpg, .prj, .shp, .shx, .csv and .dbf files. These date back to 2019. I cannot seem to get them to open in QGIS version 3.18. Do I need to first open them with an older version of QGIS? Thanks, Paddy ___

[Qgis-user] Labels

Is it possible to use two variables as labels? I have a table with town names and another column with dates established. I would like both the name and date as labels Thanks ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info:

Re: [Qgis-user] Missing plugins in version 3.20

Thank you. 3.18 still seems to be working perfectly (for my requirements anyway) so will just have to stick with that until I can upgrade my pc. On Wed, Jul 7, 2021, 09:57 Jürgen E. Fischer wrote: > Hi Pat, > > > On Wed, 07 Jul 2021, 00:27 Pat Brown, wrote: > > &g

[Qgis-user] Missing plugins in version 3.20

Hi I asked this a few days ago and I am wondering if perhaps no-one else has come across this problem. "I have installed the above version but it only shows 4 plug-ins. Whether I click on ALL or INSTALLED it still only shows 4. If I go back to 3.18 it works fine. Can anybody suggest a

[Qgis-user] Missing plug-ins in vers 3.20

Hi I have installed the above version but it only shows 4 plug-ins. Whether I click on ALL or INSTALLED it still only shows 4. If I go back to 3.18 it works fine. Can anybody suggest a possible solution? Thanks, Pat ___ Qgis-user mailing list

[Qgis-user] Shifting polygon boundaries

I currently have two adjoining polygons, A and B. Their common boundary is the green line. The map from which this was digitised has changed and the border now lies along the red line. In other words the boundary, instead of ending at the X point must end at the Y point. How can I do this without

[Qgis-user] Snapping adjoining existing polygons

I have 2 shape files. One, which has been accurately digitised, contains provinces. The second one, which has been badly digitised, contains regions within the provinces. I now need to edit the regions so that their boundaries snap to the boundaries of the provinces where they are adjacent. I

[Qgis-user] Error message editing polygon shapefile

Hi, I am busy editing a polygon shapefile. This message appears at the top of the canvas: "Geometry has been cleared. Use the add part tool to set geometry for this feature". What does this mean and what am I supposed to do? I am using the latest version of QGIS on Windows 7 pro. Thanks,

[Qgis-user] Country coastal borders

Hi What constitutes a coastline? Is it the high water mark, the low water mark, something intermediate, the claimed territorial waters or something else? I would also guess that this would differ depending on whether political or geographical. Thanks, Paddy

Re: [Qgis-user] Editing attribute table

data that the attribute table is reading from. How can I tell which one it is? Can I edit this file while the layer is open or should I first remove the layer before editing? Thank you, Paddy On Sun, Apr 11, 2021, 19:28 Pat Brown wrote: > Hi > I am having a problem with changing co-or

[Qgis-user] Editing attribute tanle

Hi I am having a problem with changing co-ordinate in my attribute table. I am using QGIS 3.18 on WIN 97,so far without any issues. It is a point layer with towns and their co-ordinates. Three of these data points had empty co-ordinate records and they displayed way out of position. This

[Qgis-user] Shapefiles

Hi, So, just to confirm what I already suspect? If you have the .shx and .dbf files but the .shp file is missing then you might as well get rid of them? It is not possible to recreate the .shp file? Thanks, Paddy ___ Qgis-user mailing list

[Qgis-user] linking/joining tables

I have a layer which displays quarter degree squares for the whole country. I also have a csv file containing two fields. One of these is a field for quarter degree squares and the other is a plant that occur in those QDSs. The same plant species occurs in a number of different QDSs. I want to

[Qgis-user] Convert WKT file

I have a csv file with two columns. The first column is a name and the second column contains a quarter degree map reference. An example would be Oudtshoorn 3322CA. What do I need to do to convert this data so that it is readable in QGIS? Thanks ___

[Qgis-user] City centre

Hi, If one had to use a point rather than polygon to represent a city, what feature would one select as that point? In other words, what feature would one use to define the central point of the city? Paddy ___ Qgis-user mailing list

[Qgis-user] Importing layers into QGIS 2.18 on Win 7

Hi, Can someone please point me to some detailed instructions on how to import a layer such as from openstreetmaps or Google Maps? The instructions I have been able to find have assumed a level of knowledge greater than mine. (eg "Enter the URL of the service which you would like to use,

[Qgis-user] Legend in Composer

Hi, I am using the Map Composer for the first time and everything is going well until I get to the Add Legend item.When I use this facility ALL the layers in the main map are added to the legend. What do I have to do to restrict the legend to just the two layers I am interested in? Thanks

[Qgis-user] Merging shapefiles

I have a number of shapefiles showing the distribution of various plants. The distribution data are in the form of polygons as they are recorded by quarter-degree square (QDS). I want to find out how many species are present in each QDS. What is the best way to do this? Should I first merge the

[Qgis-user] Sorting layers

Is there any way to sort the display of layers without actually manually dragging them to where I want them? I would like to select all the layers and sort them alphabetically ___ Qgis-user mailing list Qgis-user@lists.osgeo.org

[Qgis-user] CRS and scales

I have two layers (Shp files) which, when I open them, appear to be in two different projections (I am using QGIS 2.0.1 on Win 7 prof). I have followed all the instructions to get them to to project the same but they still will not overlay each other. When I check the CRS for each layer they are

[Qgis-user] Filling field with data

Hi, I have a polygon layer and a point layer. Using Points in Polygons I have isolated a set of points that occur in one particular polygon. This polygon has a name in the polygon Attribute Table. I have created a field in the point table and now I want to read from the polygon table the name

Re: [Qgis-user] Filling field with data

are not the primary goal of this work, we may work on these as well. Hope this helps. Andreas Am 23.09.2013 19:41, schrieb Pat Brown: Hi, I have a polygon layer and a point layer. Using Points in Polygons I have isolated a set of points that occur in one particular polygon. This polygon has

[Qgis-user] Missing data in attribute table

Hi, I have a point coverage (shape file), in this case towns. When I open the Attribute Table it has only three features and does not include the geographic coordinates but when I use the Identify Features tool there is much more information, including the geographic coordinates. Where is this

Re: [Qgis-user] Centroid error

that there are some topology errors. Maybe thats also a possible reason for malfunctions (just guessing). Greetz Bernd Am 01.09.2013, 17:34 Uhr, schrieb Pat Brown mistyha...@gmail.com: Hi List, I have a layer of around 17000 polygons, for which I want to derive the centroid. Using the Vector