RE: ElevationGrid

["Braden N. McDaniel" <braden@shadow.net>]

> -----Original Message-----
> From: Neil Woodhouse [mailto:N.Woodhouse@earth.leeds.ac.uk]
> Sent: Thursday, March 12, 1998 3:54 AM
> To: braden@shadow.net
> Cc: www-vrml@vrml.org; geovrml@ai.sri.com
> Subject: Re:ElevationGrid

> >[.....]This is the kind of thing an authoring tool should do for
> you. You note that there are too>ls out there to create height field
> image files--it just as easy to go the other
> >direction.

> Yes, that's fine, but i want to see it within the VRML spec. I don't
> want to be spending hundreds of dollars/pounds on authoring tools
> that aren't *truly* spec compliant.

Could you elaborate on this? I don't understand what about this would
preclude spec-compliance.

> I'm again thinking about the end
> user here, which in my case is the student who wants to use VRML as a
> geographic/geologic  project.

As I've stated, once you know your desired input and output formats for this
kind of thing, it is absolutely trivial to do the conversion from colors to
heights (or vice versa). There is some complexity introduced in getting
everything talking together just right if one of your requirements is that
everything be done at run-time (as I described in my last posting), but
otherwise it's pretty straightforward.

Prismatic Booger

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