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Subject: 
Re: Free-Form Camera Positioning with MLCAD, L3P, and POV-RAY
Newsgroups: 
lugnet.cad.ray, lugnet.cad.mlcad
Date: 
Fri, 5 Jan 2001 00:25:01 GMT
Viewed: 
564 times
  
Yes - you are right.  I was confused by some of the scaling and rotation
primatives at the end of the .pov ray file.

I'll change this.

thanks

Lars C. Hassing <lch@ccieurope.com> wrote in message
news:G620En.FGp@lugnet.com...
Brad Hamilton wrote:
Background
MLCAD describes 3D points using three different coordinates: (x,y,z). • If
you are looking at the front of a model, the X axis defines how far a • point
is to the left or right.  The Y access defines how high a point is (i.e.
up/down).  The Z access defines how far the point is away from the • viewer
(i.e. in and out). L3P converts these coordinates into a somewhat • different
system used by POV-RAY.  The nice thing is that the reader need not
understand the POV-RAY system to position the camera.

No, L3P uses the LDraw coordinate system.
This was an important design goal.
L2P (LGEO) uses its own coordinate system.

Otherwise a good description.
You might also want to tell about the QUAL and STUDS variables in the POV • file,
used for making quick pre-renderings.

I'll reconsider location.dat (camera.dat) and look_at.dat,
please see http://news.lugnet.com/cad/?n=4891
/Lars








Message is in Reply To:
  Re: Free-Form Camera Positioning with MLCAD, L3P, and POV-RAY
 
(...) No, L3P uses the LDraw coordinate system. This was an important design goal. L2P (LGEO) uses its own coordinate system. Otherwise a good description. You might also want to tell about the QUAL and STUDS variables in the POV file, used for (...) (24 years ago, 24-Dec-00, to lugnet.cad.ray, lugnet.cad.mlcad)

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