Afr
  • Member for 9 years, 1 month
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Seeking examples of beautiful maps?
12 votes

Le monde diplomatique offers some really beautiful maps. They look like hand-drawn maps, but I'm not sure whether they really are. Why do I think this maps are beautiful? I prefer the handmade style -...

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Running ArcGIS Desktop in virtual machine?
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7 votes

To solve the rendering-issues in VirtualBox you need to disable 3D-Hardware- and 2D-Video-Acceleration. This is quite paradox, but I asked friends who used ArcGIS in a VirtualBox session and they ...

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How to transform EPSG:3857 to tile pixel coordinates at zoom factor 0?
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6 votes

This is the answer. Sometimes you have to go through all the process of asking a question to understand the solution. JavaScript: /** * Converts spherical web mercator to tile pixel X/Y at zoom ...

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Tiling GeoJSON data?
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6 votes

I've written my own geojson map tiler driver in ruby. it's a quick and dirty ruby script to create geojson tiles from a postgis database using gdal/ogr. I could not find out how to cut the geojson ...

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Is it possible to install GeoServer on a web server?
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6 votes

In general - no. Webserver's are only dedicated to run webserver services on a certain port, e.g. offering HTML-content or processing simple PHP- or JS-Scripts. GeoServer is software which wants to ...

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How to correctly install QGIS with plugins and GRASS-integration from source?
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5 votes

How to compile latest QuantumGIS on a non-Debian/Ubuntu Linux-system with Python-plugin-support and GRASS-integration? I finally did it! Download and prepare dependencies. Most of them I could find ...

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How to access Leaflet EPSG:3857 coordinates?
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2 votes

Finally got an answer on github: Internally, Leaflet transforms EPSG:4326 coordinates to pixel coordinates. These pixel coordinates are the EPSG:3857 coordinates divided by a power of 2 (and then ...

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Why is the imported TIFF file distorted with noise in Quantum-GIS?
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2 votes

Qgis does not know this is a grey-scale image and tries to display 3 bands. Opening the layer properties and the style tab allows you to switch back to grey-scale (single band grey) from coloured ...

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Cesium Terrain Builder : Could not open GDAL Dataset
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1 votes

Make sure you set the full path. This error seems to occur when you only give gdal the name of the file. In addition, only use ASCII characters in file paths. The (quite common GIS) problem is that ...

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How to solve "Cannot create topology" in ArcCatalog?
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1 votes

It's one of these minor bugs in ArcGIS. Refreshing the database view solved that issue: Right-click Feature Dataset > Refresh. A hidden existing topology was not displayed.

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Where can I set the BufferColor property for labels in QGIS?
1 votes

It's not in the Advanced Tab, it's in the Data defined settings tab: Layer Properties > Labels > Data defined settings > Buffer (At least in QGIS 1.9.0-master.)

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How to extract elevation data from binary .ADF elevation format at given coordinates?
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0 votes

That was a quite difficult task, but now I have 2 working solutions, as described here. First of all I had to export the binary Esri Grid file to an ASCII grid file format using the ArcToolbox > ...

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How to select a subset of a DEM in ArcScene?
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0 votes

I solved this issue finally. The problem was I was accessing the DEM on a mounted UNIX-type data partition which was formatted ext4. Copying the whole DEM to a Windows-type partition (NTFS formatted) ...

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