How to use 3D Tiff as an Elevation Grid?
How to use a 3D TIFF (32 bit float) file generated from ArcGIS to show the data in 3D, without re-grid surfaces from our data again. Let’s assume your GeoTIFF has single channel 32-bit data representing elevation.
1. Load GeoTIFF file and set output file name.
2. Set “Extended Log” (in “General Conversion Settings” panel on the Conversion tab) to watch out for any errors or warnings.
3. Set Subsampling Parameters and Tin Parameters options (on Gridding tab) – especially helpful for larger grids.
4. Assign elevation colormap file (in “Color Mapping” panel on “Visual Effects” tab), set its range, assign the GeoTIFF channel to control elevation in 3D surface, set null-data (“No Data Value”) flag value.
3D TIFF format is not supported for stack of images mode, for Volumetric or VOXEL display. Adobe Reader 3D PDF display only supports 3D geometry, without any direct volumetric rendering. Alternatives are to use level-set isosurfaces, or a series of slice planes with per-pixel transparency.