[Manifold-l] Export Surface as GeoTiff

[Bob Heitzman]

While TIFF is capable of handling a bunch of formats I don't know that
TIFF has the capability to retain a typical Z value that a surface
would have.

You can convert any surface to an image using F6 - hit Ctrl-* (number
pad) first to zoom to native then F6 and select entire component at
current scale. You can then export the resulting image to an image
file. For surfaces you would most likely set the palette before
converting it to an image - maybe all palette values set to white to
just get shading.

If you want to capture a value representative of Z I'm not sure how
you would best go about that - depends a lot of what you want to do
with the file. There are several surface export formats that are
pretty easy to process - you might be able to gen up some code to
create a GeoTIFF format that supports Z.

The TIFF image export offers several different compression types -
best to make sure what the ultimate source can tolerate in the way of
format and info loss.