Using average 1 ° lat/log = 111.133km
HEIGHT REMAP
Height + voids%
15.257 % 4383 = 668.71
668.71m + 4383 = 5051.71 *with 17m error
IN HOUDINI
use “Heightfield File” to import your GeoTiff.
Size Method = Size of Largest Axis
Size = tile size of your GeoTIFF = 1 degree lat x 1 degree long for ASTER GDEM.
***So far below is the best method I have found - not perfect at all. I would like to put our Remapped Height directly into “Height Scale” and have it work but it just doesn’t.
Make a “Box” and scale in Y to the size of your elevation + voids. Basically a measuring stick.
“Transform” this in until it is directly under the feature your have a measurement for, add some Height Scale as necessary to visualise.
Then adjust Height Scale till you get the exact height. (yes it’s not really exact, I know.)
***For the Mount Williamson tile I then noticed the desert floor is above sea level. So I went back into Google Earth and got an elevation for the desert floor.
Beck into Houdini made another Box and scaled in Y to the elevation from Google Earth and QC’d the desert floor. IT MATCHED !!!
So now I feel like I have an accurate model of the environment at scale with correct height so the slope angles of the mountains are close to real world.