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87 lines
2.1 KiB
87 lines
2.1 KiB
//-----------------------------------------------------------------------------
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// File: xc.h
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//
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// Desc: Cross_section (xc) class
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//
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// Copyright (c) 1994-2000 Microsoft Corporation
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//-----------------------------------------------------------------------------
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#ifndef __XC_H__
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#define __XC_H__
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// useful for xc-coords
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enum
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{
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RIGHT = 0,
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TOP,
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LEFT,
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BOTTOM
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};
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//-----------------------------------------------------------------------------
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// Name:
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// Desc: Cross_section (xc) class
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//-----------------------------------------------------------------------------
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class XC
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{
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public:
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float m_xLeft, m_xRight; // bounding box
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float m_yTop, m_yBottom;
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int m_numPts;
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D3DXVECTOR2* m_pts; // CW points around the xc, from +x
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XC( int numPts );
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XC( const XC& xc );
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XC( XC *xc );
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~XC();
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void Scale( float scale );
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float MaxExtent();
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float MinTurnRadius( int relDir );
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void CalcArcACValues90( int dir, float r, float *acPts );
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void CalcArcACValuesByDistance( float *acPts );
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void ConvertPtsZ( D3DXVECTOR3 *pts, float z );
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protected:
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void CalcBoundingBox();
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};
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//-----------------------------------------------------------------------------
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// Name:
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// Desc: Specific xc's derived from base xc class
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//-----------------------------------------------------------------------------
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class ELLIPTICAL_XC : public XC
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{
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public:
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ELLIPTICAL_XC( float r1, float r2 );
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~ELLIPTICAL_XC();
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private:
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void SetControlPoints( float r1, float r2 );
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};
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//-----------------------------------------------------------------------------
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// Name:
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// Desc: Specific xc's derived from base xc class
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//-----------------------------------------------------------------------------
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class RANDOM4ARC_XC : public XC
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{
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public:
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RANDOM4ARC_XC( float r );
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~RANDOM4ARC_XC();
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private:
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void SetControlPoints( float radius );
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};
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#endif __XC_H__
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