What you are trying to do is write a very simple CAD program. Have a
look at this link
<https://www2.mathematik.tu-darmstadt.de/~ehartmann/cdgen0104.pdf>,
which gives the basic formulae and also Pascal routines to do it.
Wolf
On 18/09/19 2:10 AM, James Richters wrote:
I'm curious if Freepascal has any package available that would calculate X,Y
screen pixels based on 3D X,Y,Z data at some given rotations. I'm using
Agg-Pas with PTC-Graph in a console application on Windows. I'm not sure what
the technical term is for figuring out what pixels are used to represent 3D
coordinates on a 2D screen, but I'm hoping maybe there is something that just
does the calculations that I can use in conjunction with Agg-Pas and PTC-Graph
instead of moving to a complete graphics package.
James
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