Where to get height maps

It integrates nicely with Ogre It was part of the original Visible Earth, not Next Generation. There are occasional holes but these can be filled with some kind of spline interpolation. Re: Where to get height maps real geo information Post by Beauty » Mon Mar 09, am Great links I'll tell you about news, when I found more information or get some import experiences.

Re: Where to get height maps real geo information Post by Beauty » Mon Mar 09, am On the CeBIT exhebition in Germany somebody told me, that contour lines are widespreaded in geography science and survey. There are free contour line maps available by the German Land Surveying Office maybe also for other countries. So it could be interesting, if there are converters for generation of height maps. Here I found an algorithm how this could be done based to triangle subdivision.

Also interesting for creation of a Mesh. The potential additional information includes projections, coordinate systems, ellipsoids, datums, and everything else necessary to establish the exact spatial reference for the file. Last edited by Beauty on Fri Mar 20, pm, edited 1 time in total. Main target is the climate research, but the measured data also allowes to create precise height maps of the earth, including the ocean ground. Unfortunately there is only less information in Wikipedia, but I wanted to tell it, because generally it could be useful to know this standard of the Open Geospatial Consortium OGC.

Re: Where to get height maps real geo information Post by PolyVox » Sun Mar 22, pm Wow, that's a lot of good links It certainly seems there is plenty of data out there if you serch for it! Re: Where to get height maps real geo information Post by johnhpus » Wed Apr 01, am It may have already been mentioned somewhere in the flood of links, but if not, be sure to check out the USGS and their free online store of maps.

They seem to have almost everything you could want and extremely detailed at that -- seriously, down to bird migration ranges and hydrological regions. There is many information, so I took a minute to find the right map section. Here is the map type overview. As second step you have to order the wanted map. It's a Google Maps interface. There you go to the wanted area, set a marker and then you see which maps are available.

Really great! The project name is Natural Earth. The downloadable database contains information like this: world map, continents, countries, rivers, cities, height data, sea depth data, Re: Where to get height maps real geo information Post by bigbman » Fri Aug 26, pm Wow, an overwhelming amount of information here.

What's the latest consensus? I'm looking for a more automated approach. Re: Where to get height maps real geo information Post by Beauty » Sat Aug 27, am Nice to hear that you like the links. I found them on different places and thought, it's good for others to publish them here. Two years ago I got height data of the wanted area I suppose by a payed geo service and I converted this to an other format by a command-line tool, perhaps gdal.

This new format was a text file with many numbers. To convert it to an Ogre related height map I had to do calculations manually. I think it's not allowed to use it in other applications. Get Texture Set. The size of the download image depends on the resolution of the used screen. To get the largest possible size, we recommend to use to switch to full screen view when selecting the map section. Depending on the screen resolution the heightmap and the respective texture can reach a size of 4.

The resolution of the 3D map preview is considerably lower max. Texture and heightmap will be exported in the highest possible resolution. They supply these as a series of tiles which you can join together in QGIS. They also have maps showing roads, property boundaries, aerial photos, and more that can be used as textures. It has fewer DEMs.

Some of the licenses are Creative Commons, others are a little more restrictive. They also have a bunch of soil, vegetation, and climate map overlays Land Information New Zealand This has 1m DEM s for parts of New Zealand They also have maps showing roads, property boundaries, aerial photos, and more that can be used as textures.

Ready to go New Zealand height maps I've converted a few height maps into the. Below are some 15m DEMs Stewart Island. Mt Taranaki. Grayscale represents height values 0 0 1 1 0 0 2 2 4 3 3 4 0 0 0 0 What makes the formats different from each other is the range of numbers and the metadata. The "z:x scale factor" describes how "high" the current view is, on the z-axis, in terms of how wide the current view is on the x-axis.

Multiplying this scale factor by the width of a 3D mesh in units x will tell you how high in units z your mesh should be after displacement in order to be true-scale. Press the 'h' key to toggle interface visibility.

Terrain data is coming from Mapzen 's global terrain tiles.