1 |
+ |
{ RCSid $Id$ } |
2 |
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{ |
3 |
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Generate rays for a parabolic view projection -- |
4 |
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i.e., a round image that when projected downwards |
19 |
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dx, dy, dz = Direction vector for image point (x,y) |
20 |
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|
21 |
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Typical command line: |
22 |
< |
cnt 1024 1024 | rcalc -e maxalt:25 \ |
22 |
> |
cnt 1024 1024 | rcalc -od -e maxalt:25 \ |
23 |
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-e 'x=($2+.5)/1024;y=1-($1+.5)/1024' -f vwparab.cal \ |
24 |
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-e '$1=25.5;$2=12;$3=5;$4=dx;$5=dy;$6=dz' \ |
25 |
< |
| rtrace @electric.opt -fac -x 1024 -y 1024 \ |
25 |
> |
| rtrace @electric.opt -fdc -x 1024 -y 1024 \ |
26 |
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electric.oct > pan.pic |
27 |
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} |
28 |
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amax : PI/180*maxalt; |