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More dilation and erosion functions for region.

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This commit is contained in:
David Williams 2012-11-24 21:32:17 +01:00
parent e048f7c2f6
commit 6d7246f907
2 changed files with 54 additions and 17 deletions
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11
library/PolyVoxCore/include/PolyVoxCore/Region.h
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@ -119,10 +119,15 @@ namespace PolyVox
void shift(const Vector3DInt32& amount); void shift(const Vector3DInt32& amount);
void shiftLowerCorner(const Vector3DInt32& amount); void shiftLowerCorner(const Vector3DInt32& amount);
void shiftUpperCorner(const Vector3DInt32& amount); void shiftUpperCorner(const Vector3DInt32& amount);
//FIXME - Add dilate and erode functions?
void dilate(int32_t amount); void dilate(int32_t iAmount);
void erode(int32_t amount); void dilate(int32_t iAmountX, int32_t iAmountY, int32_t iAmountZ);
void dilate(const Vector3DInt32& v3dAmount);
void erode(int32_t iAmount);
void erode(int32_t iAmountX, int32_t iAmountY, int32_t iAmountZ);
void erode(const Vector3DInt32& v3dAmount);
private: private:

60
library/PolyVoxCore/source/Region.cpp
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@ -307,25 +307,57 @@ namespace PolyVox
m_iUpperZ += amount.getZ(); m_iUpperZ += amount.getZ();
} }
void Region::dilate(int32_t amount) void Region::dilate(int32_t iAmount)
{ {
m_iLowerX -= amount; m_iLowerX -= iAmount;
m_iLowerY -= amount; m_iLowerY -= iAmount;
m_iLowerZ -= amount; m_iLowerZ -= iAmount;
m_iUpperX += amount; m_iUpperX += iAmount;
m_iUpperY += amount; m_iUpperY += iAmount;
m_iUpperZ += amount; m_iUpperZ += iAmount;
} }
void Region::erode(int32_t amount) void Region::dilate(int32_t iAmountX, int32_t iAmountY, int32_t iAmountZ)
{ {
m_iLowerX += amount; m_iLowerX -= iAmountX;
m_iLowerY += amount; m_iLowerY -= iAmountY;
m_iLowerZ += amount; m_iLowerZ -= iAmountZ;
m_iUpperX -= amount; m_iUpperX += iAmountX;
m_iUpperY -= amount; m_iUpperY += iAmountY;
m_iUpperZ -= amount; m_iUpperZ += iAmountZ;
}
void Region::dilate(const Vector3DInt32& v3dAmount)
{
dilate(v3dAmount.getX(), v3dAmount.getY(), v3dAmount.getZ());
}
void Region::erode(int32_t iAmount)
{
m_iLowerX += iAmount;
m_iLowerY += iAmount;
m_iLowerZ += iAmount;
m_iUpperX -= iAmount;
m_iUpperY -= iAmount;
m_iUpperZ -= iAmount;
}
void Region::erode(int32_t iAmountX, int32_t iAmountY, int32_t iAmountZ)
{
m_iLowerX += iAmountX;
m_iLowerY += iAmountY;
m_iLowerZ += iAmountZ;
m_iUpperX -= iAmountX;
m_iUpperY -= iAmountY;
m_iUpperZ -= iAmountZ;
}
void Region::erode(const Vector3DInt32& v3dAmount)
{
erode(v3dAmount.getX(), v3dAmount.getY(), v3dAmount.getZ());
} }
} }