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I have a map of an area and georeferenced photos. I need to be able to bring the pictures as points and then be able to click at a certain point and an image pop up. أكثر...

How to automatically reloaded raster layer if source is changed? (The path is the same but inside source file are changes) I use: qgis.utils.iface.mapCanvas().refresh() but layer not refresh. # # # The maps are repainting but there are still the same image (source file is changed...

I'm trying to set a definition expression according to a user-selected value from a drop down menu, but I can't get the map to update the feature layers according to the expression. The user is able to click the drop down and select the values, but nothing happens when they click one. Any help...

I'm trying to convert coordinates from Google Maps using the PostGIS. I'm using this query: SELECT ST_AsText(ST_Transform(ST_GeomFromText('POINT(-29.16297 -51.1795034)', 900913), 29182));The problem is that when I put a point on the map using the UTM coordinates, it is in a different place...

I have GPS points of agro wells with data Full Depth of the well and water level of the well. I need to make a simple ground water level map using above data + Arc GIS أكثر...

This video covers the process to download, import and composite RS bands in ArcGIS Desktop   أكثر...

I have used google maps for displaying some locations using markers, based on the user's current location. User's current location is the center point of the map. The default zoom level is 12. In default, I displayed markers within 300 miles(In my case) distance only. In that how can I do the...

Please consult the GP Results Window for enhanced error description أكثر...

I can import a shapefile into my iGIS ios app but it does not draw or show up. I opened it with a simple shapefile viewer and it gave me the error that I have attached as a picture. How do I fix this?? أكثر...

I would like to classify shapefile values using graduated style in QGIS, but instead of using the default mode of classification (e.g.natural breaks with values range 0-10, 10-20, 20-30), I would like to set the values range to 0-10, 11-20, 21-30. Is it possible? أكثر...

I am generating a number of plots in Matlab. I want to overlay these over maps I have created in QGIS. I thought the best way would be to import the maps as a geotiff into Matlab and then overlay my plots over the image. I have saved the project as an image, generating a tiff and a tiffw file...

I am using iGIS for iPADWhen I try importing one particular shapefile it gives me an error(see attached pic) saying I have the wrong projection. It is the same one I use on my other 10shapefiles that load just fine. I'm assuming it is something wrong with the shapefile since all the other ones...

These five Geospatial Intelligence documentary vignettes were first publicly shown at the ASPRS 75th Anniversary Annual Conference in Baltimore, March 2009. They attracted much attention and many requests for additional accessibility. أكثر...

I'm developing an ArcGIS tool by Python. Below is a part of the inputs: StudyArea = arcpy.GetParameterAsText(0) LandCover = arcpy.GetParameterAsText(1) gridcode = arcpy.GetParameterAsText(2) gridcode is a field from LandCover. gridcode aims to derive the field which contains land...

Please let me know if we could run pyqgis the python code for qgis using multiprocessing and multi threading in windows. Don't post multithreading for a python qgis pugin. Multi processing is not at all working in python link. When I use multi threading qgis crashed and closes. I tried to...

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Clarenville to acquire GIS technology for analyzing the town's data. أكثر...

I have a JS code like this which I have assigned an anonymous function to photos variable in map.on("load", function() {} now it seems the photos is never invoking! as even I tried to do a simple console.log("Is This working") it is not loading the log! I am using the second function instead of...

I am running a Python script invoking the DBSCAN tool to cluster feature points. When I open ArcMap, load the feature layer, and run the script, it works the way I expect it to. But if I run it again with the same feature layer still open, I get "AttributeError: NoneType has no attribute...

I need to find oil & gas pipeline data in the world especially about Asia but I want to get them freely. أكثر...