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Is there a way to preserve layer interactivity with my styles when using 0 as a property value for the layer's Opacity? Essentially, I just want an invisible yet interactive layer. It seems my only work-around is to adjust the opacity to something like 0.01, which isn't a suitable workaround for...

I have created a QGIS plugin to import a tab separated value file, using: filename = QFileDialog.getOpenFileName(self.dlg, "Select file to import ", path, '*.*')uri="file:///"+filename+"?"+"delimiter=%s&xField=%s&yField=%s"%("\t", "Set Grid Easting", "Set Grid Northing")vlayer =...

I'm trying to use the function ST_Extrude() in Postgres 9.2. I enabled the PostGIS 2.2.0 extension and the PostGIS_SFCGAL extension (which carries the ST_Extrude function). I can see the function in my list of functions (see snapshot), but I cannot use it. When I try following SQL code...

I have untypical problem connected with Data Reviewer extension installation. On new computer, with fresh Windows 7 installation there is no possibility to install Data Reviewer extension in correct way: Installation is finishing with the information "ArcGIS Data Reviewer 10 has been...

Hexagon Geospatial has created this excellent video to demonstrate the basic fundamentals of what is remote sensing.   أكثر...

Recently I posted a document that I have been curating for quite a few years now, one explaining why GIS in education matters. *This content is also posted with graphics on the Esri Insider newsletter. *To provide another way of communicating this information, I have created a series of videos...

Inspecting the connections of a cell phone tower is dangerous work. That’s why PRENAV uses 3D laser scanning to first build a model of the tower so that the UAV can be flown close enough to get... Click Title to Continue Reading... أكثر...

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I have an GeoJSON source with the following specifications: "properties": { "sensorid": 500, "Locatie": "Prinsestraat 18", "9_13_kw1": 513585.0, "13_18_kw1": 806317.0, "18_22_kw1": 545899.0, "22_9_kw1": 477801.0, "9_13_kw2": 519198.0, "13_18_kw2": 800637.0...

I use QGIS 1.8 under WIN XP in Standalone Installer Version. I need to limit the extent of the data to be downloaded via WFS because of the large amount of data in the requested layer. In older/different versions of QGIS there used to be a check box within the Add WFS layer dialog to limit the...

There are two virtual machines: One where I've created an enterprise geodatabase on a Microsft SQL 2014 server- with a Windows Server 2012 R2 64-bit Operating system And a second machine where ArcGIS Server 10.3 and ArcGIS Desktop 10.3 are installed + Microsoft SQl Server 2012 Native Client...

I need to interpolate some point data and would like to use the ST_InvDistWeight4ma function. As I am new to raster PostGIS, I would like to get some help about this. Any help will be appreciated. Thanks in advance. أكثر...

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I need to open a MXD file from a Python toolbox (so that I can automatically export it to a PDF). The file contains a connection to an Oracle 11g database, and I need to somehow provide the credentials to the database. None of the methods I have tried so far have worked - the PDF always comes...

I am trying to generate images with textural features from raster maps using GRASS GIS (r.texture). I have tried window 3x3 and 7x7 and I selected all texture measurements. I am working with the Landsat 8 satellite images. The bands were preprocessed using i.landsat.toar and i.topo.corr. After...

I have some problem with viewparams in my javascript var x = document.getElementById('koordi_x').value; var y = document.getElementById('koordi_y').value; var a = document.getElementById('jarak2').value; bintang_1 = new ol.source.Vector({ loader...