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snPlane.h
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snPlane.h
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#ifndef __SNPLANE__
#define __SNPLANE__
#include "snVector3f.h"
#include "snLine.h"
#include "snSegment.h"
#include "snRay.h"
#include <vector>
/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/lgpl.html>.
Author: Helge Mathee [email protected]
Company: Studio Nest (TM)
Date: 2010 / 09 / 21
*/
/**
* snEssence is the shared namespace between all classes within the snEssence library.
*/
namespace snEssence
{
// forwards
class snLine;
/**
* A 3d plane represented by origin and normal
*/
class snPlane
{
private:
snVector3f mOrigin;
snVector3f mNormal;
size_t mPointID1;
size_t mPointID2;
public:
// constructors
snPlane();
snPlane(const snVector3f & in_Origin, const snVector3f & in_Normal, bool in_GivenTwoPoints = false);
// getters
snVector3f GetOrigin() const { return mOrigin; }
snVector3f GetNormal() const { return mNormal; }
size_t GetPointID1() const { return mPointID1; }
size_t GetPointID2() const { return mPointID2; }
// setters
void Set(const snVector3f & in_Origin, const snVector3f & in_Normal);
bool SetFromTwoPoints(const snVector3f & in_PointA, const snVector3f & in_PointB);
void SetPointID1(size_t in_ID) { mPointID1 = in_ID; return ;}
void SetPointID2(size_t in_ID) { mPointID2 = in_ID; return ;}
// intersections
float GetDistance(const snVector3f & in_Point) const;
bool IsAbove(const snVector3f & in_Point) const { return GetDistance(in_Point) >= 0; }
bool IsBelow(const snVector3f & in_Point) const { return !IsAbove(in_Point); }
bool GetIntersectionWithSegment(const snSegment & in_Segment, snVector3f * out_pResult = NULL) const;
bool GetIntersectionWithLine(const snLine & in_Line, snVector3f * out_pResult = NULL) const;
bool GetIntersectionWithRay(const snRay & in_Ray, snVector3f * out_pResult = NULL) const;
bool GetIntersectionWithPlane(const snPlane & in_Plane, snLine * out_pResult = NULL) const;
};
typedef snPlane * snpPlane;
typedef std::vector<snPlane> snPlaneVec;
typedef std::vector<snpPlane> snpPlaneVec;
}
#endif