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| 1 | i=[ //I | |
| 2 | 1,0,0,0; | |
| 3 | 0,1,0,0; | |
| 4 | 0,0,1,0; | |
| 5 | 0,0,0,1 | |
| 6 | ] | |
| 7 | //scale | |
| 8 | s1=[ | |
| 9 | 3,0,0,0; | |
| 10 | 0,2,0,0; | |
| 11 | 0,0,1,0; | |
| 12 | 0,0,0,1 | |
| 13 | ] | |
| 14 | ||
| 15 | s2=i | |
| 16 | s3=i | |
| 17 | s4=i | |
| 18 | //translate | |
| 19 | t1=[ | |
| 20 | 1,0,0,5; | |
| 21 | 0,1,0,2; | |
| 22 | 0,0,1,0; | |
| 23 | 0,0,0,1 | |
| 24 | ] | |
| 25 | ||
| 26 | t2=[ | |
| 27 | 1,0,0,7; | |
| 28 | 0,1,0,0; | |
| 29 | 0,0,1,0; | |
| 30 | 0,0,0,1 | |
| 31 | ] | |
| 32 | ||
| 33 | t3=[ | |
| 34 | 1,0,0,8; | |
| 35 | 0,1,0,1; | |
| 36 | 0,0,1,0; | |
| 37 | 0,0,0,1 | |
| 38 | ] | |
| 39 | ||
| 40 | t4=[ | |
| 41 | 1,0,0,3; | |
| 42 | 0,1,0,-1; | |
| 43 | 0,0,1,0; | |
| 44 | 0,0,0,1 | |
| 45 | ] | |
| 46 | ||
| 47 | //rotate | |
| 48 | r1=[ | |
| 49 | 0,1,0,0; | |
| 50 | -1,0,0,0; | |
| 51 | 0,0,1,0; | |
| 52 | 0,0,0,1 | |
| 53 | ] | |
| 54 | ||
| 55 | r2=[ | |
| 56 | -1,0,0,0; | |
| 57 | 0,-1,0,0; | |
| 58 | 0,0,1,0; | |
| 59 | 0,0,0,1 | |
| 60 | ] | |
| 61 | ||
| 62 | r3=[ | |
| 63 | 0,-1,0,0; | |
| 64 | 1,0,0,0; | |
| 65 | 0,0,1,0; | |
| 66 | 0,0,0,1 | |
| 67 | ] | |
| 68 | ||
| 69 | r4=[ | |
| 70 | 0,-1,0,0; | |
| 71 | 1,0,0,0; | |
| 72 | 0,0,1,0; | |
| 73 | 0,0,0,1 | |
| 74 | ] | |
| 75 | ||
| 76 | rc=[//rot cam | |
| 77 | 0,-1,0,0; | |
| 78 | 1,0,0,0; | |
| 79 | 0,0,1,0; | |
| 80 | 0,0,0,1 | |
| 81 | ] | |
| 82 | ||
| 83 | tc=[//trans camera | |
| 84 | 1,0,0,2; | |
| 85 | 0,1,0,0; | |
| 86 | 0,0,1,0; | |
| 87 | 0,0,0,1 | |
| 88 | ] | |
| 89 | ||
| 90 | v1=[ //triangle | |
| 91 | 0,1,0; | |
| 92 | 0,0,1; | |
| 93 | 0,0,0; | |
| 94 | 1,1,1 | |
| 95 | ] | |
| 96 | ||
| 97 | cv = rc*tc*inv(t1*r1);// camera transformation attached to 1 | |
| 98 | m1=t1*r1 | |
| 99 | m2=t2*r2 | |
| 100 | m3=t3*r3 | |
| 101 | m4=t4*r4 | |
| 102 | ||
| 103 | //T=cv*m *s *v | |
| 104 | a = cv*m1*s1*v1; | |
| 105 | b = cv*m2*s2*v1; | |
| 106 | c = cv*m3*s3*v1; | |
| 107 | d = cv*m1*m4*s4*v1; //4 ist kind von 1 | |
| 108 | ||
| 109 | ||
| 110 | ||
| 111 | print(%io(2),a); | |
| 112 | print(%io(2),b); | |
| 113 | print(%io(2),c); | |
| 114 | print(%io(2),d); | |
| 115 | ||
| 116 | // T = I | |
| 117 | // T = T*cv | |
| 118 | // foreachChildren(drawElement()) | |
| 119 | // | |
| 120 | // drawElement() | |
| 121 | // push T | |
| 122 | - | print(%io(2),va); |
| 122 | + | |
| 123 | // foreachChildren(drawElement()) | |
| 124 | // T = T*s | |
| 125 | // draw() | |
| 126 | // T = pop | |
| 127 | ||
| 128 | - | print(%io(2),d); |
| 128 | + | |
| 129 | va = rc*tc*v1; | |
| 130 | ||
| 131 | ||
| 132 | ||
| 133 | print(%io(2),va); |
