74 lines
3.1 KiB
C++
74 lines
3.1 KiB
C++
/*******************************************************************************
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The MIT License (MIT)
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Copyright (c) 2015 David Williams and Matthew Williams
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*******************************************************************************/
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#include "Shapes.h"
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#include "PolyVox/MaterialDensityPair.h"
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using namespace PolyVox;
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void createSphereInVolume(RawVolume<MaterialDensityPair88>& volData, float fRadius, uint8_t uValue)
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{
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//This vector hold the position of the center of the volume
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Vector3DInt32 v3dVolCenter = (volData.getEnclosingRegion().getUpperCorner() - volData.getEnclosingRegion().getLowerCorner()) / static_cast<int32_t>(2);
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//This three-level for loop iterates over every voxel in the volume
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for (int z = 0; z < volData.getDepth(); z++)
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{
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for (int y = 0; y < volData.getHeight(); y++)
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{
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for (int x = 0; x < volData.getWidth(); x++)
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{
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//Store our current position as a vector...
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Vector3DInt32 v3dCurrentPos(x,y,z);
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//And compute how far the current position is from the center of the volume
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double fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
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//If the current voxel is less than 'radius' units from the center
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//then we make it solid, otherwise we make it empty space.
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if(fDistToCenter <= fRadius)
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{
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volData.setVoxel(x,y,z, MaterialDensityPair88(uValue, uValue > 0 ? MaterialDensityPair88::getMaxDensity() : MaterialDensityPair88::getMinDensity()));
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}
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}
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}
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}
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}
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void createCubeInVolume(RawVolume<MaterialDensityPair88>& volData, Vector3DInt32 lowerCorner, Vector3DInt32 upperCorner, uint8_t uValue)
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{
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uint8_t maxDen = static_cast<uint8_t>(MaterialDensityPair88::getMaxDensity());
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uint8_t minDen = static_cast<uint8_t>(MaterialDensityPair88::getMinDensity());
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//This three-level for loop iterates over every voxel between the specified corners
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for (int z = lowerCorner.getZ(); z <= upperCorner.getZ(); z++)
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{
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for (int y = lowerCorner.getY(); y <= upperCorner.getY(); y++)
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{
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for (int x = lowerCorner.getX() ; x <= upperCorner.getX(); x++)
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{
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volData.setVoxel(x,y,z, MaterialDensityPair88(uValue, uValue > 0 ? maxDen : minDen));
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}
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}
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}
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} |