kicad/polygon/PolyLine.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Few parts of this code come from FreePCB, released under the GNU General Public License V2.
* (see http://www.freepcb.com/ )
*
* Copyright (C) 2012-2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2008-2013 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
* Copyright (C) 2008-2013 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 2012-2015 KiCad Developers, see CHANGELOG.TXT for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* @file PolyLine.h
* @note definition of CPolyLine class
*/
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//
// A polyline contains one or more contours, where each contour
// is defined by a list of corners and side-styles
// There may be multiple contours in a polyline.
// The last contour may be open or closed, any others must be closed.
// All of the corners and side-styles are concatenated into 2 arrays,
// separated by setting the end_contour flag of the last corner of
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// each contour.
//
// When used for copper (or technical layers) areas, the first contour is the outer edge
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// of the area, subsequent ones are "holes" in the copper.
#ifndef POLYLINE_H
#define POLYLINE_H
#include <vector>
#include <wx/gdicmn.h> // for wxPoint definition
#include <layers_id_colors_and_visibility.h> // for LAYER_NUM definition
#include <class_eda_rect.h> // for EDA_RECT definition
#include <polygons_defs.h>
#include <clipper.hpp>
class CSegment
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{
public:
wxPoint m_Start;
wxPoint m_End;
CSegment() { };
CSegment( const wxPoint& aStart, const wxPoint& aEnd )
{
m_Start = aStart;
m_End = aEnd;
}
CSegment( int x0, int y0, int x1, int y1 )
{
m_Start.x = x0; m_Start.y = y0;
m_End.x = x1; m_End.y = y1;
}
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};
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class CPolyPt : public wxPoint
{
public:
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CPolyPt( int aX = 0, int aY = 0, bool aEnd = false, int aUtility = 0 ) :
wxPoint( aX, aY ), end_contour( aEnd ), m_flags( aUtility )
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{}
// / Pure copy constructor is here to dis-ambiguate from the
// / specialized CPolyPt( const wxPoint& ) constructor version below.
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CPolyPt( const CPolyPt& aPt ) :
wxPoint( aPt.x, aPt.y ), end_contour( aPt.end_contour ), m_flags( aPt.m_flags )
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{}
CPolyPt( const wxPoint& aPoint ) :
wxPoint( aPoint ), end_contour( false ), m_flags( 0 )
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{}
bool end_contour;
int m_flags;
bool operator ==( const CPolyPt& cpt2 ) const
{ return (x == cpt2.x) && (y == cpt2.y) && (end_contour == cpt2.end_contour); }
bool operator !=( CPolyPt& cpt2 ) const
{ return (x != cpt2.x) || (y != cpt2.y) || (end_contour != cpt2.end_contour); }
};
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/**
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* CPOLYGONS_LIST handle a list of contours (polygons corners).
* Each corner is a CPolyPt item.
* The last cornet of each contour has its end_contour member = true
*/
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class CPOLYGONS_LIST
{
private:
std::vector <CPolyPt> m_cornersList; // array of points for corners
public:
CPOLYGONS_LIST() {};
CPolyPt& operator [](int aIdx) {return m_cornersList[aIdx]; }
// Accessor:
const std::vector <CPolyPt>& GetList() const {return m_cornersList;}
int GetX( int ic ) const { return m_cornersList[ic].x; }
void SetX( int ic, int aValue ) { m_cornersList[ic].x = aValue; }
int GetY( int ic ) const { return m_cornersList[ic].y; }
void SetY( int ic, int aValue ) { m_cornersList[ic].y = aValue; }
int GetUtility( int ic ) const { return m_cornersList[ic].m_flags; }
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void SetFlag( int ic, int aFlag )
{
m_cornersList[ic].m_flags = aFlag;
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}
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bool IsEndContour( int ic ) const
{
return m_cornersList[ic].end_contour;
}
void SetEndContour( int ic, bool end_contour )
{
m_cornersList[ic].end_contour = end_contour;
}
const wxPoint& GetPos( int ic ) const { return m_cornersList[ic]; }
const CPolyPt& GetCorner( int ic ) const { return m_cornersList[ic]; }
// vector <> methods
void reserve( int aSize ) { m_cornersList.reserve( aSize ); }
void RemoveAllContours( void ) { m_cornersList.clear(); }
CPolyPt& GetLastCorner() { return m_cornersList.back(); }
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unsigned GetCornersCount() const { return m_cornersList.size(); }
void DeleteCorner( int aIdx )
{
m_cornersList.erase( m_cornersList.begin() + aIdx );
}
void DeleteCorners( int aIdFirstCorner, int aIdLastCorner )
{
m_cornersList.erase( m_cornersList.begin() + aIdFirstCorner,
m_cornersList.begin() + aIdLastCorner + 1 );
}
void Append( const CPOLYGONS_LIST& aList )
{
m_cornersList.insert( m_cornersList.end(),
aList.m_cornersList.begin(),
aList.m_cornersList.end() );
}
void Append( const CPolyPt& aItem )
{
m_cornersList.push_back( aItem );
}
void Append( const wxPoint& aItem )
{
CPolyPt item( aItem );
m_cornersList.push_back( aItem );
}
void InsertCorner( int aPosition, const CPolyPt& aItem )
{
m_cornersList.insert( m_cornersList.begin() + aPosition + 1, aItem );
}
/**
* function AddCorner
* add a corner to the list
*/
void AddCorner( const CPolyPt& aCorner )
{
m_cornersList.push_back( aCorner );
}
/**
* function CloseLastContour
* Set the .end_contour member of the last corner in list to true
*/
void CloseLastContour()
{
if( m_cornersList.size() > 0 )
m_cornersList.back().end_contour = true;
}
/**
* Function GetContoursCount.
* @return the number of polygons stored in list
* (number of corners flagged "end_contour"
*/
int GetContoursCount() const;
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/**
* Function ExportTo
* Copy all contours to a KI_POLYGON_SET, each contour is exported
* to a KI_POLYGON
* @param aPolygons = the KI_POLYGON_SET to populate
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*/
void ExportTo( KI_POLYGON_SET& aPolygons ) const;
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/**
* Function ExportTo
* Copy the contours to a KI_POLYGON_WITH_HOLES
* The first contour is the main outline, others are holes
* @param aPolygoneWithHole = the KI_POLYGON_WITH_HOLES to populate
*/
void ExportTo( KI_POLYGON_WITH_HOLES& aPolygoneWithHole ) const;
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/**
* Function ExportTo
* Copy all contours to a ClipperLib::Paths, each contour is exported
* to a ClipperLib::Path
* @param aPolygons = the ClipperLib::Paths to populate
*/
void ExportTo( ClipperLib::Paths& aPolygons ) const;
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/**
* Function ImportFrom
* Copy all polygons from a KI_POLYGON_SET in list
* @param aPolygons = the KI_POLYGON_SET to import
*/
void ImportFrom( KI_POLYGON_SET& aPolygons );
/**
* Function ImportFrom
* Copy all polygons from a ClipperLib::Paths in list
* @param aPolygons = the ClipperLib::Paths to import
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*/
void ImportFrom( ClipperLib::Paths& aPolygons );
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/**
* Function InflateOutline
* Inflate the outline stored in m_cornersList.
* The first polygon is the external outline. It is inflated
* The other polygons are holes. they are deflated
* @param aResult = the Inflated outline
* @param aInflateValue = the Inflate value. when < 0, this is a deflate transform
* @param aLinkHoles = if true, aResult contains only one polygon,
* with holes linked by overlapping segments
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*/
void InflateOutline( CPOLYGONS_LIST& aResult, int aInflateValue, bool aLinkHoles );
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};
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class CPolyLine
{
public:
enum HATCH_STYLE { NO_HATCH, DIAGONAL_FULL, DIAGONAL_EDGE }; // hatch styles
// constructors/destructor
CPolyLine();
CPolyLine( const CPolyLine& aCPolyLine);
~CPolyLine();
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/**
* Function ImportSettings
* Copy settings (layer, hatch styles) from aPoly
* @param aPoly is the CPolyLine to import settings
*/
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void ImportSettings( const CPolyLine* aPoly );
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// functions for modifying the CPolyLine contours
/* initialize a contour
* set layer, hatch style, and starting point
*/
void Start( LAYER_NUM layer, int x, int y, int hatch );
void AppendCorner( int x, int y );
void InsertCorner( int ic, int x, int y );
/**
* Function DeleteCorner
* remove the given corner. if it is the last point of a contour
* keep the controur closed by modifying the previous corner
* @param ic = the index of the corner to delete
*/
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void DeleteCorner( int ic );
void MoveCorner( int ic, int x, int y );
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/**
* function CloseLastContour
* Set the .end_contour member of the last corner
* of the last contour to true
*/
void CloseLastContour()
{
m_CornersList.CloseLastContour();
}
void RemoveContour( int icont );
/**
* Function IsPolygonSelfIntersecting
* Test a CPolyLine for self-intersection of vertex (all contours).
*
* @return :
* false if no intersecting sides
* true if intersecting sides
* When a CPolyLine is self intersectic, it need to be normalized.
* (converted to non intersecting polygons)
*/
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bool IsPolygonSelfIntersecting();
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/**
* Function Chamfer
* returns a chamfered version of a polygon.
* @param aDistance is the chamfering distance.
* @return CPolyLine* - Pointer to new polygon.
*/
CPolyLine* Chamfer( unsigned int aDistance );
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/**
* Function Fillet
* returns a filleted version of a polygon.
* @param aRadius is the fillet radius.
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* @param aSegments is the number of segments / fillet.
* @return CPolyLine* - Pointer to new polygon.
*/
CPolyLine* Fillet( unsigned int aRadius, unsigned int aSegments );
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/**
* Function RemoveNullSegments
* Removes corners which create a null segment edge
* (i.e. when 2 successive corners are at the same location)
* @return the count of removed corners.
*/
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int RemoveNullSegments();
void RemoveAllContours( void );
// Remove or create hatch
void UnHatch();
void Hatch();
// Transform functions
void MoveOrigin( int x_off, int y_off );
// misc. functions
/**
* @return the full bounding box of polygons
*/
const EDA_RECT GetBoundingBox();
/**
* @return the bounding box of a given polygon
* @param icont = the index of the polygon contour
* (0 = main contour, 1 ... n = other contours, usually holes)
*/
const EDA_RECT GetBoundingBox( int icont );
void Copy( const CPolyLine* src );
bool TestPointInside( int x, int y );
/**
* @return true if the corner aCornerIdx is on a hole inside the main outline
* and false if it is on the main outline
*/
bool IsCutoutContour( int aCornerIdx );
/**
* Function AppendArc.
* Adds segments to current contour to approximate the given arc
*/
void AppendArc( int xi, int yi, int xf, int yf, int xc, int yc, int num );
// access functions
void SetLayer( LAYER_NUM aLayer ) { m_layer = aLayer; }
LAYER_NUM GetLayer() const { return m_layer; }
int GetCornersCount() const
{
return m_CornersList.GetCornersCount();
}
/**
* @return true if the last corner in corners list is flagged end_contour
*/
bool GetClosed();
/**
* Function GetContoursCount.
* @return the number of polygons stored in list
* (number of corners flagged "end_contour"
*/
int GetContoursCount() const;
/**
* Function GetContour.
* @return the contour number containing the corner ic
* @param ic = the index of the corner in the corner list
*/
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int GetContour( int ic );
/**
* Function GetContourStart.
* @return the index of the first corner (in corners list) of a contour
* @param icont = the index of the contour
*/
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int GetContourStart( int icont );
/**
* Function GetContourEnd.
* @return the index of the last corner (in corners list) of a contour
* @param icont = the index of the contour
*/
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int GetContourEnd( int icont );
/**
* Function GetContourSize.
* @return the corners count of a contour
* @param icont = the index of the contour
*/
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int GetContourSize( int icont );
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int GetX( int ic ) const { return m_CornersList.GetX( ic ); }
int GetY( int ic ) const { return m_CornersList.GetY( ic ); }
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/**
* Function IsEndContour.
* @return true if a corner is flagged end_contour
* @param ic= the index (in corners list) of the corner
*/
bool IsEndContour( int ic ) const { return m_CornersList.IsEndContour( ic ); }
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const wxPoint& GetPos( int ic ) const { return m_CornersList.GetPos( ic ); }
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int GetUtility( int ic ) const { return m_CornersList.GetUtility( ic ); };
void SetUtility( int ic, int aFlag ) { m_CornersList.SetFlag( ic, aFlag ); };
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int GetHatchPitch() const { return m_hatchPitch; }
static int GetDefaultHatchPitchMils() { return 20; } // default hatch pitch value in mils
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enum HATCH_STYLE GetHatchStyle() const { return m_hatchStyle; }
void SetHatch( int aHatchStyle, int aHatchPitch, bool aRebuildHatch )
{
SetHatchPitch( aHatchPitch );
m_hatchStyle = (enum HATCH_STYLE) aHatchStyle;
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if( aRebuildHatch )
Hatch();
}
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void SetX( int ic, int x )
{
m_CornersList.SetX( ic, x );
}
void SetY( int ic, int y )
{
m_CornersList.SetY( ic, y );
}
void SetEndContour( int ic, bool end_contour )
{
m_CornersList.SetEndContour( ic, end_contour );
}
void SetHatchStyle( enum HATCH_STYLE style )
{
m_hatchStyle = style;
}
void SetHatchPitch( int pitch ) { m_hatchPitch = pitch; }
/**
* Function NormalizeAreaOutlines
* Convert a self-intersecting polygon to one (or more) non self-intersecting polygon(s)
* @param aNewPolygonList = a std::vector<CPolyLine*> reference where to store new CPolyLine
* needed by the normalization
* @return the polygon count (always >= 1, because there is at least one polygon)
* There are new polygons only if the polygon count is > 1
*/
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int NormalizeAreaOutlines( std::vector<CPolyLine*>* aNewPolygonList );
// Bezier Support
void AppendBezier( int x1, int y1, int x2, int y2, int x3, int y3 );
void AppendBezier( int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4 );
/**
* Function Distance
* Calculates the distance between a point and the zone:
* @param aPoint the coordinate of the point.
* @return int = distance between the point and outline.
* 0 if the point is inside
*/
int Distance( const wxPoint& aPoint );
/**
* Function Distance
* Calculates the distance between a segment and the zone:
* @param aStart the starting point of the segment.
* @param aEnd the ending point of the segment.
* @param aWidth the width of the segment.
* @return int = distance between the segment and outline.
* 0 if segment intersects or is inside
*/
int Distance( wxPoint aStart, wxPoint aEnd, int aWidth );
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/**
* Function HitTestForEdge
* test is the point aPos is near (< aDistMax ) a vertex
* @param aPos = the reference point
* @param aDistMax = the max distance between a vertex and the reference point
* @return int = the index of the first corner of the vertex, or -1 if not found.
*/
int HitTestForEdge( const wxPoint& aPos, int aDistMax ) const;
/**
* Function HitTestForCorner
* test is the point aPos is near (< aDistMax ) a corner
* @param aPos = the reference point
* @param aDistMax = the max distance between a vertex and the corner
* @return int = the index of corner of the, or -1 if not found.
*/
int HitTestForCorner( const wxPoint& aPos, int aDistMax ) const;
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private:
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LAYER_NUM m_layer; // layer to draw on
enum HATCH_STYLE m_hatchStyle; // hatch style, see enum above
int m_hatchPitch; // for DIAGONAL_EDGE hatched outlines, basic distance between 2 hatch lines
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// and the len of eacvh segment
// for DIAGONAL_FULL, the pitch is twice this value
int m_flags; // a flag used in some calculations
public:
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CPOLYGONS_LIST m_CornersList; // array of points for corners
std::vector <CSegment> m_HatchLines; // hatch lines showing the polygon area
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};
/**
* Function ConvertPolysListWithHolesToOnePolygon
* converts the outline contours aPolysListWithHoles with holes to one polygon
* with no holes (only one contour)
* holes are linked to main outlines by overlap segments, to give only one polygon
*
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* @param aPolysListWithHoles = the list of corners of contours
* (main outline and holes)
* @param aOnePolyList = a polygon with no holes
*/
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void ConvertPolysListWithHolesToOnePolygon( const CPOLYGONS_LIST& aPolysListWithHoles,
CPOLYGONS_LIST& aOnePolyList );
/**
* Function ConvertOnePolygonToPolysListWithHoles
* converts the outline aOnePolyList (only one contour,
* holes are linked by overlapping segments) to
* to one main polygon and holes (polygons inside main polygon)
* @param aOnePolyList = a polygon with no holes
* @param aPolysListWithHoles = the list of corners of contours
* (main outline and holes)
*/
void ConvertOnePolygonToPolysListWithHoles( const CPOLYGONS_LIST& aOnePolyList,
CPOLYGONS_LIST& aPolysListWithHoles );
#endif // #ifndef POLYLINE_H