comp.lang.idl-pvwave archive: archive » Re: 3d sphere revisited

Home » Public Forums » archive » Re: 3d sphere revisited

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: 3d sphere revisited [message #33460 is a reply to message #33459]

Tue, 31 December 2002 06:36

paul wisehart
Messages: 28
Registered: December 2002

Junior Member

THanks for the replies.

> I should think the texture map is the data!

This clears it up a little for me.
I was looking at the issue a little skewed i guess.

Rick,

> "Overplotting" the sphere. Create additional IDLgrPolyon or IDLgrPolyline
> objects with verticies whose radius values are slightly larger than your
> sphere such that they appear to float on the surface of the sphere. An
> example would be creating an IDLgrPolygon object of the continents. You
> could add IDLgrPolyline objects representing rivers, roads, borders.... Use
> shape and .dxf files to get this data into IDL.

THAT is exactly what I would like to do. Can you elaborate on how
i could set up these IDLgrPolygon 'continents'?
Or, maybe theres an example program I could look at?

I've tried IDLgrPolyline objects on a sphere, and I don't
understand how the coordinates relate to the sphere's coordinates.
For example:
My IDLgrPolyline would draw 'thru' the sphere. How do
I draw an IDLgrPolyline( or IDLgrPolygon ) to match the sphere's
curved surface??

happy new year,
(...its today right?)
paul wisehart

Report message to a moderator

[Message index]

		Re: 3d sphere revisited By: Rick Towler on Tue, 31 December 2002 09:39
		Re: 3d sphere revisited By: paul wisehart on Tue, 31 December 2002 06:36
		Re: 3d sphere revisited By: Rick Towler on Mon, 30 December 2002 10:28
		Re: 3d sphere revisited By: David Fanning on Mon, 30 December 2002 09:32

Previous Topic:	3d sphere revisited
Next Topic:	Re: Issue Installing IDL 5.6 under Mac OS 10.2.3

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 14:38:14 PDT 2025

Total time taken to generate the page: 0.96029 seconds