About this 3D model

I used the software mfussi described in thing#15276 to get the elevation data from Google Earth, then I used a small VB program to flip the data over and scale the number of points down. I then imported the data as surface files into openscad. This image of texas is 87 tiles. I have higher resolution tiles that I will post soon that will make a 5'8 x 5' textured image of texas