59 lines
2.5 KiB
C
59 lines
2.5 KiB
C
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/////////////////////////////////////////////////////////////////////////////
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// Name: liner.h
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// Author: Klaas Holwerda
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// Created: 1/10/2000
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// Copyright: 2000 (c) Klaas Holwerda
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// Licence: wxWindows Licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef __WXLINER_H
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#define __WXLINER_H
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#ifdef __GNUG__
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#pragma interface "liner.cpp"
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#endif
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#include "wx/geometry.h"
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enum OUTPRODUCT {R_IS_LEFT,R_IS_ON,R_IS_RIGHT};
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// Status of a point to a wxLine
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enum R_PointStatus {R_LEFT_SIDE, R_RIGHT_SIDE, R_ON_AREA, R_IN_AREA};
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class wxLine
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{
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public:
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// constructors and destructor
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wxLine( double x1, double y1, double x2, double y2 );
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wxLine( const wxPoint2DDouble& a, const wxPoint2DDouble& b);
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~wxLine();
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wxPoint2DDouble GetBeginPoint(); // Get the beginpoint from a wxLine
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wxPoint2DDouble GetEndPoint(); // Get the endpoint from a wxLine
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bool CheckIntersect( wxLine&, double Marge); // Check if two wxLines intersects
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int Intersect( wxLine&, wxPoint2DDouble& bp ,wxPoint2DDouble& ep ,double Marge) ; // Intersects two wxLines
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bool Intersect( wxLine& lijn, wxPoint2DDouble& crossing); //intersect two (infinit) lines
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R_PointStatus PointOnLine( const wxPoint2DDouble& a_Point, double& Distance, double Marge ); //For an infinite wxLine
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R_PointStatus PointInLine( const wxPoint2DDouble& a_Point, double& Distance, double Marge ); //For a non-infinite wxLine
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OUTPRODUCT OutProduct( const wxLine& two, double accur); // outproduct of two wxLines
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double Calculate_Y( double X); // Caclulate Y if X is known
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void Virtual_Point( wxPoint2DDouble& a_point, double distance) const;
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wxLine& operator=( const wxLine&); // assignment operator
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void CalculateLineParameters(); // Calculate the parameters if nessecary
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void OffsetContour( const wxLine& nextline, double factor,wxPoint2DDouble& offsetpoint) const;
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private:
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int ActionOnTable1(R_PointStatus,R_PointStatus); // Function needed for Intersect
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int ActionOnTable2(R_PointStatus,R_PointStatus); // Function needed for Intersect
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double m_AA;
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double m_BB;
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double m_CC;
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wxPoint2DDouble m_a;
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wxPoint2DDouble m_b;
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bool m_valid_parameters;
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};
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#endif
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