Init2
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14
masks/icosahedron/icosahedron.dat
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14
masks/icosahedron/icosahedron.dat
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The 12 vertices of an icosohedron, kindly provided by Mathematica.
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x y z
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0.0000000000000000000 0.0000000000000000000 1.1755705045849462583
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1.0514622242382672121 0.0000000000000000000 0.52573111211913360603
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0.32491969623290632616 1.0000000000000000000 0.52573111211913360603
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-0.85065080835203993218 0.61803398874989484820 0.52573111211913360603
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-0.85065080835203993218 -0.61803398874989484820 0.52573111211913360603
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0.32491969623290632616 -1.0000000000000000000 0.52573111211913360603
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0.85065080835203993218 0.61803398874989484820 -0.52573111211913360603
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-0.32491969623290632616 1.0000000000000000000 -0.52573111211913360603
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-1.0514622242382672121 0.0000000000000000000 -0.52573111211913360603
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-0.32491969623290632616 -1.0000000000000000000 -0.52573111211913360603
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0.85065080835203993218 -0.61803398874989484820 -0.52573111211913360603
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0.0000000000000000000 0.0000000000000000000 -1.1755705045849462583
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86
masks/icosahedron/icosahedron.pol
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86
masks/icosahedron/icosahedron.pol
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The polygons of an icosohedron projected on the sky.
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There are 20 triangular faces.
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This file is created from icosohedron.vrt by:
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poly2poly icosohedron.vrt icosohedron.pol
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20 polygons
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polygon 0 ( 3 caps, 1 weight, 0.628318530717959 str):
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0.0000000000000000 1.0000000000000000 0.0000000000000000 1
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0.9510565162951535 -0.3090169943749475 -0.0000000000000001 1
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polygon 1 ( 3 caps, 1 weight, 0.628318530717959 str):
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polygon 2 ( 3 caps, 1 weight, 0.628318530717958 str):
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-0.5877852522924732 0.8090169943749475 0.0000000000000000 1
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polygon 3 ( 3 caps, 1 weight, 0.628318530717959 str):
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polygon 4 ( 3 caps, 1 weight, 0.628318530717959 str):
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0.9510565162951535 0.3090169943749475 -0.0000000000000001 1
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-0.4253254041760199 0.3090169943749475 0.8506508083520399 1
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0.0000000000000000 -1.0000000000000000 0.0000000000000000 1
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polygon 5 ( 3 caps, 1 weight, 0.628318530717959 str):
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-0.2628655560595668 0.8090169943749475 0.5257311121191336 1
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0.4253254041760199 0.3090169943749475 -0.8506508083520399 1
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polygon 6 ( 3 caps, 1 weight, 0.628318530717959 str):
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-0.8506508083520399 0.0000000000000001 0.5257311121191336 1
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-0.1624598481164531 0.5000000000000000 -0.8506508083520400 1
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polygon 7 ( 3 caps, 1 weight, 0.628318530717958 str):
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polygon 8 ( 3 caps, 1 weight, 0.628318530717959 str):
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polygon 9 ( 3 caps, 1 weight, 0.628318530717959 str):
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0.4253254041760199 -0.3090169943749475 -0.8506508083520399 1
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polygon 10 ( 3 caps, 1 weight, 0.628318530717958 str):
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0.2628655560595668 0.8090169943749475 -0.5257311121191336 1
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0.5257311121191336 0.0000000000000000 0.8506508083520400 1
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polygon 11 ( 3 caps, 1 weight, 0.628318530717959 str):
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polygon 12 ( 3 caps, 1 weight, 0.628318530717959 str):
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polygon 13 ( 3 caps, 1 weight, 0.628318530717959 str):
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0.2628655560595669 -0.8090169943749475 -0.5257311121191336 1
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-0.4253254041760199 -0.3090169943749475 0.8506508083520399 1
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polygon 14 ( 3 caps, 1 weight, 0.628318530717959 str):
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-0.6881909602355868 -0.5000000000000001 -0.5257311121191336 1
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0.8506508083520399 0.0000000000000001 -0.5257311121191336 1
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polygon 15 ( 3 caps, 1 weight, 0.628318530717958 str):
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0.5877852522924731 -0.8090169943749475 0.0000000000000000 1
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0.5877852522924731 0.8090169943749475 0.0000000000000000 1
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polygon 16 ( 3 caps, 1 weight, 0.628318530717959 str):
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0.9510565162951536 0.3090169943749474 0.0000000000000001 1
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polygon 17 ( 3 caps, 1 weight, 0.628318530717959 str):
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0.0000000000000001 1.0000000000000000 0.0000000000000000 1
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0.4253254041760199 -0.3090169943749475 -0.8506508083520399 1
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polygon 18 ( 3 caps, 1 weight, 0.628318530717959 str):
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-0.9510565162951536 0.3090169943749474 -0.0000000000000001 1
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0.4253254041760200 0.3090169943749475 -0.8506508083520400 1
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-0.0000000000000001 -1.0000000000000000 -0.0000000000000000 1
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polygon 19 ( 3 caps, 1 weight, 0.628318530717959 str):
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-0.5877852522924731 -0.8090169943749475 -0.0000000000000000 1
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0.9510565162951536 -0.3090169943749474 0.0000000000000001 1
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28
masks/icosahedron/icosahedron.vrt
Normal file
28
masks/icosahedron/icosahedron.vrt
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@ -0,0 +1,28 @@
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The polygons of an icosohedron projected on the sky.
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There are 20 faces.
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Each face is a triangle, specified by 3 vertices.
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Each vertex is specified by an azimuth and elevation, in degrees.
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unit d
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vertices 0 3
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0 90 0 26.56505117707799 72 26.56505117707799
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0 90 72 26.56505117707799 144 26.56505117707799
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0 90 144 26.56505117707799 -144 26.56505117707799
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0 90 -144 26.56505117707799 -72 26.56505117707799
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0 90 -72 26.56505117707799 0 26.56505117707799
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0 26.56505117707799 36 -26.56505117707799 72 26.56505117707799
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72 26.56505117707799 108 -26.56505117707799 144 26.56505117707799
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144 26.56505117707799 180 -26.56505117707799 -144 26.56505117707799
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-144 26.56505117707799 -108 -26.56505117707799 -72 26.56505117707799
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-72 26.56505117707799 -36 -26.56505117707799 0 26.56505117707799
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36 -26.56505117707799 0 26.56505117707799 -36 -26.56505117707799
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108 -26.56505117707799 72 26.56505117707799 36 -26.56505117707799
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180 -26.56505117707799 144 26.56505117707799 108 -26.56505117707799
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-108 -26.56505117707799 -144 26.56505117707799 180 -26.56505117707799
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-36 -26.56505117707799 -72 26.56505117707799 -108 -26.56505117707799
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0 -90 36 -26.56505117707799 -36 -26.56505117707799
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0 -90 108 -26.56505117707799 36 -26.56505117707799
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0 -90 180 -26.56505117707799 108 -26.56505117707799
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0 -90 -108 -26.56505117707799 180 -26.56505117707799
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0 -90 -36 -26.56505117707799 -108 -26.56505117707799
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