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I'm using the heron template and I have added my shapefiles on it. The feature information button doesn't display the data within my shapefile. How can I make it work properly? أكثر...

I have 16 feature classes. What I want to do is to select by attributes each feature class using this statement: "Shape_Area" < 1100Is there a way to do this by batch using arcpy or arcpy.mapping? I can't find the right module for "Select by Attributes". أكثر...

i have this code QgsUniqueValueRenderer * lRenderer = (QgsUniqueValueRenderer *)pLayer->renderer(); QMap lSymbolMap = lRenderer->symbolMap(); QgsSymbol * lSymbol = lSymbolMap.value(""); my problem is that in the c++ qgis api the header QgsUniqueValueRenderer has been...

The following code works fine. When I click the "Test Play/Stop" button a series of points from the 'geojson' list are drawn with popup attributes one by one. How can I put the list 'geojson' as geojson.txt file in my hard disk and access that file in the following code? This way I can save so...

There’s a useful geoprocess to clip simple lines and create a separation at the intersections with other lines. This geoprocess is run on the whole layer, checking the intersections between all the polylines. We can need it to calculate intersection, … Continue reading → أكثر...

It’s time to refresh your browser*- ArcGIS Online has been updated with the following new features and enhancements. This update includes updates and new capabilities for smart mapping, app templates, managing and administering organizations, and more. Smart Mapping First introduced in the...

Drawing a baseline in an attempt to make a grid. Have managed to draw baseline but cannot select using cad tools "select one linesegment" tool. Worked previously and I'm not aware that I'm doing anything different. Baseline was made using this process:Layer -> create layer -> new shapefile...

I'm having some trouble adding a CartoDB layer to an L.mapbox.map, I thought it was a pretty simple thing to do in the HTML but it's just not working and I dont know why? My CartoDB layer has vector tiles whose info window opens to a clickable link. My map is a MapBox map that has imagery and...

I would like to reproduce the Select By Attributes tool below in ArcMap as a geoprocessing tool to be consumed as a service in a Portal for ArcGIS Web App. I am not a developer, so I would appreciate it if someone is able to provide an already written script or the geoprocessing tool itself. I...

I would like to get the average value of specific attributes. I have a table with columns like: ID, P1, E1, Age1, P2, E2, Age2, P3, E3, AverageAgeP, AverageAgeE Sometimes there is a value for P, sometimes there is value for E - otherwise it's NULL. I would like to calculate the average value...

I am trying to do rotation of point symbols in QGIS. I am working with rule-based renderer. In other types of classification there is a button advanced (for example in categorized renderer), where I can choose rotation field.But in rule-based renderer this button is missing. Do you know how to...

I'm using the 2.8.1 Wien QGIS version.I have a large number (more than 5000) of shapefiles that I want to convert to a csv or txt files to extract, to tables, the atributte information. The shapefiles are located in a directory and I want to keep the same name and directory for the new ones...

A recent story in the news is that the Government of India is currently in discussions with Google over allowing Google to capture and publish 3D imagery of Indian cities. As we have often noted, 3D imagery in Asia is sorely lacking and India would be a good place to start to rectify that. India...

bonjour Forum SIG! Je viens a peine de commencer a travailler sur QGIS et je dois analyser des cartes crees par la ville de Vienne en Autriche (.wms) Quand j'ouvre mon fichier .wms je peux choisir differentes rasters (il y en a environ 30....) puis enfin les ouvrir sur le logiciel. Mon... أكثر...

I'm pushing some GML data into a Web Feature Service. And I want to keep to the GML/WFS standards when pushing my data. Could anyone point me towards a document that shows me this. Or a quick explanation towards it thanks. أكثر...

I wish to use the build in polyline style -----X-----X-----X-----X----- but I find that the X is too big. Is there any way to make the X smaller? أكثر...

Suppose TIN grid has a plane topology with terrain composed of slope B and slope A. How do we change the TIN so that plane topology has only terrain of slope B? Our problem nature is from bio-medical, but is basically topological. We need to be deigning a frame which has inner wall carved out...

I am trying to get data from table A to table B. But it is important that domains in table B would remain. So I tried to use Append, but it doesn't work with tables. Any ideas? أكثر...

I've been searching for quite a while now. Is there a way to merge a hillshade image with an aerial image with gdal? I'm just trying to create a hillshaded aerial image. أكثر...

In Leaflet, adding control classes like Zoom In/Zoom Out is possible. But I do not want to add a new div into my html. I want to use an existing div to contain my tools. I am pretty sure that it can be done by using onAdd method; onAdd: function (map) { container = CALL MY OWN DIV ITEM...