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Questions tagged [opengl]

OpenGL (Open Graphics Library) is a cross-language, multi-platform application programming interface (API) for rendering 2D and 3D computer graphics. The API is typically used to interact with a Graphics processing unit (GPU), to achieve hardware-accelerated rendering.

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15 views

C++ sample sources to drag and drop shapefile polygon

A Shapefile viewer has been made from this C++ source code by OpenGL and shapelib libraries. I would like to drag and drop polygons on the viewer. Let me know how to edit the programs (where are ...
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Parse Point Cloud to Reference Geometry

I have a large point cloud in ASCII format that is aligned to the coordinate system I require. I also have a range of either .igs splines or reference surfaces .stp that I would like to filter the ...
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Creating spherical texture map from QGIS World map?

Right now I am building an application in OpenGL. The application maps a spherical Earth texture map to a polygon approximating a sphere. When I use any of the sphere textures such as from http://...
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173 views

Converting latitude and longitude to 2D cartesian (opengl)

I know this has been asked a million times in here, but I can't really understand it, I am using OpenStreetMap (OSM) particularly Overpass API, as I only need roadway information. I know that I need ...
2
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0answers
55 views

geoTIFF raster // random display errors only in QGIS

Sometimes I experience display issues with geoTIFF in QGIS (also had this once in TatukGIS). Now i have a situation in latest QGIS running on Linux KDE. The image is kind of disturbed (s. example). ...
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392 views

Making an OpenGL GIS application [closed]

I am working on a project of mine in which I have to render geospatial data. The data is in the form of geoTIFF images and I have to render that using OpenGL. I am good at C++ and OpenGL, but I don't ...
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1answer
2k views

Rearranging labels in screen to avoid overlapping

I have a map, with some icon over it. Every icon has a label next to it. When icons overlaps, labels are overlapped too. In this case, I want to move labels so they don't overlap anymore, with a line ...
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158 views

What must be learned to build 3D web map? [closed]

I wish to build a 3D web map based on Silverlight or JavaScript. I cannot build 3D in Silverlight. What I should do then? Should I learn "Balder" or OpenGL or what? I must do it before 09/2014. Can ...