Revision 7aa4c349
Added by Leszek Koltunski almost 3 years ago
| src/main/java/org/distorted/helpers/FactoryCubit.java | ||
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| 368 | 368 |
return ft; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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private double computeCos(double oldX, double oldY, double newX, double newY, double len1, double len2) |
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{
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double ret= (oldX*newX+oldY*newY) / (len1*len2); |
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if( ret<-1.0 ) return -1.0; |
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if( ret> 1.0 ) return 1.0; |
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return ret; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// sin of (signed!) angle between vectors 'old' and 'new', counterclockwise! |
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private double computeSin(double oldX, double oldY, double newX, double newY, double len1, double len2) |
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{
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double ret= (newX*oldY-oldX*newY) / (len1*len2); |
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if( ret<-1.0 ) return -1.0; |
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if( ret> 1.0 ) return 1.0; |
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return ret; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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private void rotateAllVertices(double[] result, int len, double[] vertices, double sin, double cos) |
| ... | ... | |
| 550 | 527 |
double newX = newVert[2*vertex ]; |
| 551 | 528 |
double newY = newVert[2*vertex+1]; |
| 552 | 529 |
double lenIthNew = Math.sqrt(newX*newX + newY*newY); |
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double cos = computeCos( oldVert[0], oldVert[1], newX, newY, lenIthNew, lenFirstOld); |
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double sin = computeSin( oldVert[0], oldVert[1], newX, newY, lenIthNew, lenFirstOld); |
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double cos = QuatHelper.computeCos( oldVert[0], oldVert[1], newX, newY, lenIthNew, lenFirstOld);
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double sin = QuatHelper.computeSin( oldVert[0], oldVert[1], newX, newY, lenIthNew, lenFirstOld);
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| 555 | 532 |
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| 556 | 533 |
rotateAllVertices(buffer,len,newVert,sin,cos); |
| 557 | 534 |
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