Re: [Qgis-user] Linking coordinates between layers

Thank you, Martin. That's brilliant! I hadn't come across Virtual Layers before, so it's opened up a whole load of new possibilities! -- Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html ___ Qgis-user mailing list

[Qgis-user] Linking coordinates between layers

I have two point layers each with a single point in them. I want to draw a line joining the points to use to measure the distance apart. I have found various plug-ins which allow this, but is there a way I can actually link the point coordinates to the line layer so that if I move one of the

[Qgis-user] Opening file from zip folder to processing dialog

I've read how to use the QGIS Browser to add layers into the project from within zip files, but this doesn't seem to be available with processing dialogs. I'm trying to merge two raster files using Raster>Miscellaneous>Merge. For my input files it only recognises unzipped files in the folder. If

[Qgis-user] Creating subpolygons from two shapefile layers

The image shows two shapefiles each containing several polygons - one shapefile is outlined in thin black lines, the other in thick pink. I'm trying to use Geoprocessing tools to create a new shapefile which contains

Re: [Qgis-user] Showing all items in attributes table

Thanks for this. The multipart to single part seemed to clean the file as well as show that one of my polylines existed in three separate segments. So the file now contains 8 features whether I open it in QGIS or other programmes. When I was digitising I wanted to use part of one line I'd already

[Qgis-user] Showing all items in attributes table

I've digitised a shape file layer with several polylines. In the Attribute table it shows 8 items, but in the metadata for the file it states there are 14 features. If I open the shape file in another GIS programme it comes up with 17 polylines, some of which are duplicates of others. I would

Re: [Qgis-user] Add a new vertex to a polyline

Many thanks for this - it has solved my problem. I thought I'd tried double-clicking but maybe I wasn't close enough to the existing line. -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Add-a-new-vertex-to-a-polyline-tp5279129p5279147.html Sent from the Quantum GIS -

[Qgis-user] Add a new vertex to a polyline

I'm editing a polyline which I previously digitised. I've gone into the node editor which allows me to move vertices around but I can't find a way to insert a new vertex into the line. I'm sure there must be a way and it's driving me mad! Grateful for advice. -- View this message in context:

Re: [Qgis-user] QGIS project with no projection

Thanks for all the responses. I've tried the various suggestions but can't get my tiff to import properly without specifying a projection. Even following the steps suggested in Lee Hachadoorian's post the tiff imports and appears to show the correct units in the information bar but when I measure

[Qgis-user] QGIS project with no projection

I want to use QGIS to make measurements such as distances and angles on a flat scaled image which I have as a georeferenced tiff. I don't want to use any projection - just a straightforward orthogonal linear scale in metres. QGIS seems to require that I choose a projection. What would be the best

[Qgis-user] QGIS project with no projection

I want to use QGIS to make measurements on a flat scaled image which I have as a georeferenced tiff. I don't want to use any projection - just a straightforward orthogonal linear scale in metres. QGIS seems to require that I choose a projection. What would be the best choice for my needs? Can I

[Qgis-user] Degradation of imported image quality

I asked this in a different thread which (very usefully) went off the topic, so I'm starting this new thread. I had tried importing an index map as an image into Print Composer (before realising how much better it was to generate an Overview map.) I noticed that the quality of the image was

Re: [Qgis-user] Importing image to Print Composer

Thank you - that explains a lot. -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Importing-image-to-Print-Composer-tp5235991p5236591.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. ___ Qgis-user mailing

Re: [Qgis-user] Importing image to Print Composer

That facility sounds amazing. Do you do this by setting up the style you want, saving a preset, then changing the style and saving another preset? Thank you -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Importing-image-to-Print-Composer-tp5235991p5236592.html Sent from

Re: [Qgis-user] Importing image to Print Composer

Thanks for pointing me towards the visibility presets - that exactly matches what I needed. On my system there seem only to be six presets possible - if you want to add a new one you have to remove one first. Is there a way of increasing this number? It doesn't seem very logical to limit the

Re: [Qgis-user] Importing image to Print Composer

Hi Thanks for pointing me at this. I've managed to create an index map within the same project and create the overview outline of the main map. However, the index map has a completely different set of layers to the main map. Is there a way of organising the layers into groups so I could quickly

Re: [Qgis-user] QGIS 2.6.1 Complex polygon not displayed properly

Thanks - you've suggested a solution, although I'm not sure why it works. I imported my original shape file into SAGA, exported it as a shape file from SAGA and when I read the SAGA export into QGIS it had all the right areas blank. Weird! -- View this message in context:

[Qgis-user] QGIS 2.6.1 Complex polygon not displayed properly

I append two images of the same shape file which contains a single polygon with several lakes. In SAGA it displays correctly with all the lakes as transparent but in QGIS the larger lakes contain the colour fill. Is there something I'm not doing correctly in QGIS, or is there an option for

Re: [Qgis-user] QGIS 2.6.1 Complex polygon not displayed properly

The polygon (there is only one polygon) was created in Golden Software Didger from contours exported as a dxf file. I imported the shapefile into QGIS using Add Vector Layer. The attached image shows how the list of coordinates plot in Excel - it shows how the coordinates trace round the main