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graphics formats, triangulisation & coordinate systems [message #36252]

Wed, 27 August 2003 13:07

nasalmon
Messages: 33
Registered: August 2003

Member

Does anyone know how i can convert files in the 3DS format into the
OBJ format, or have a code that can do this. This are many object in
3DS format but i want to manipulate verticies and polygons, so i need
to access the raw data.

I also need to convert all polygons to triangles, is there a simple
triangulisation code i can use. I work in IDL so could this code be
used in the conversion. To take care of reflections i need to ensure
all surface are plane by definition, so i would like to convert all
otherwise polygons to triangles

Which is the best coordinate system to operate in for computer
graphics, right-handed or left-handed. I am inclinded to use a
right-hand coord system as most maths books use this.

Also if i chose a particular system should i chose the z-coordinate as
away (towards) the viewer or up (down). In know it is simple to
convert, but i just want to use the same conventions as the majority
of users.

Many thanks,

Neil

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		graphics formats, triangulisation & coordinate systems By: nasalmon on Wed, 27 August 2003 13:07
		Re: graphics formats, triangulisation & coordinate systems By: nasalmon on Fri, 29 August 2003 12:41

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