a2dVpath Class Reference
[vector path a2dCanvasObject plus segment classes]

Vector Path. More...

#include <polyver.h>

List of all members.

Public Member Functions

a2dVpath (a2dVertexArray &vertexArray, bool moveToFirst=true, bool closeLast=false)

a2dVpath (a2dVertexList &vertexList, bool moveToFirst=true, bool closeLast=false)

~a2dVpath ()

destructor

a2dVpath & operator= (const a2dVpath &other)

operator =

double Length ()

calculate length of path, assuming continues path.

bool IsPolygon (bool allowArc=true)

test if closed polygon ( a2dPATHSEG_MOVETO, a2dPATHSEG_LINETO, a2dPATHSEG_ARCTO )

bool IsPolyline (bool allowArc=true)

test if polyline ( a2dPATHSEG_MOVETO, a2dPATHSEG_LINETO, a2dPATHSEG_ARCTO )

void Add (a2dVpathSegment *seg)

add a segment

void Add (a2dVertexArray &vertexArray, bool moveToFirst=true, bool closeLast=false)

add a vertexArray to an existing path

void Add (a2dVertexList &vertexList, bool moveToFirst=true, bool closeLast=false)

add a vertexlist to an existing path

void MoveTo (double x, double y)

add a MoveTo command to the path

void LineTo (double x, double y, bool withStroke=true)

add a LineTo command to the path

void QBCurveTo (double x1, double y1, double x2, double y2, bool withStroke=true)

add a quadratic bezier segment to the path

void QBCurveTo (double x1, double y1, bool withStroke=true)

add a quadratic bezier segment to the path, using the previous segment.

void CBCurveTo (double x1, double y1, double x2, double y2, double x3, double y3, bool withStroke=true)

add a quadratic bezier segment to the path

void CBCurveTo (double x1, double y1, double x3, double y3, bool withStroke=true)

add a quadratic bezier segment to the path, using the previous segment.

void ArcTo (double x1, double y1, double x2, double y2, bool withStroke=true)

add an arc segment to the path

void ArcTo (double xc, double yc, double angle, bool withStroke=true)

add an arc segment to the path, using the previous segment

void ArcTo (double xc, double yc, double x1, double y1, double x2, double y2, bool withStroke=true)

add an arc segment to the path, using the previous segment

void Close (bool withStroke=true)

Closing the path as a filled area.

void ConvertToLines ()

Convert complex segments to line segments.

void ConvertToPolygon (a2dListOfa2dVertexList &addTo, bool arc=true)

void Contour (double distance, a2dPATH_END_TYPE pathtype)

create an offset contour at distance

void Transform (const a2dAffineMatrix &world)

transform all segments with given matrix

a2dBoundingBox GetBbox (const a2dAffineMatrix &lworld=a2dIDENTITY_MATRIX)

return a boundingbox of a transformed a2dVpath

Detailed Description

Vector Path.

Holds a wxArray of a2dVpathSegment objects. Drawing the sequence of segments, represents the form of the shape. Shape depends on the type of segment and style of that segment.

With Vpath very complex shapes can be generated, also disjoint. e.g. polygons with holes, donuts.

a2dVpathSegment is the baseclass for several types of segments.

See also:

a2dVpathQBCurveSegment

a2dVpathCBCurveSegment

a2dVpathArcSegment

Remarks:: do use Shrink() after filling a a2dVpath, to reduce memory usage

Definition at line 1172 of file polyver.h.

Member Function Documentation

void a2dVpath::MoveTo	(	double	x,
		double	y
	)

add a MoveTo command to the path

Parameters:

	x	point to move to
	y	point to move to

Definition at line 3891 of file polyver.cpp.

void a2dVpath::LineTo	(	double	x,
		double	y,
		bool	withStroke = `true`
	)

add a LineTo command to the path

Parameters:

	x	endpoint of line
	y	endpoint of line
	withStroke	Do stroke or not this line segment

Definition at line 3897 of file polyver.cpp.

void a2dVpath::QBCurveTo	(	double	x1,
		double	y1,
		double	x2,
		double	y2,
		bool	withStroke = `true`
	)

add a quadratic bezier segment to the path

Parameters:

	x1	endpoint of curve
	y1	endpoint of curve
	x2	first control point coming from previous segment in path
	y2	first control point coming from previous segment in path
	withStroke	Do stroke or not this line segment

Definition at line 3904 of file polyver.cpp.

void a2dVpath::QBCurveTo	(	double	x1,
		double	y1,
		bool	withStroke = `true`
	)

add a quadratic bezier segment to the path, using the previous segment.

Parameters:

	x1	endpoint of curve
	y1	endpoint of curve
	withStroke	Do stroke or not this line segment

Definition at line 3912 of file polyver.cpp.

void a2dVpath::CBCurveTo	(	double	x1,
		double	y1,
		double	x2,
		double	y2,
		double	x3,
		double	y3,
		bool	withStroke = `true`
	)

add a quadratic bezier segment to the path

Parameters:

	x1	endpoint of curve
	y1	endpoint of curve
	x2	first control point coming from previous segment in path
	y2	first control point coming from previous segment in path
	x3	second control point coming from previous segment in path
	y3	second control point coming from previous segment in path
	withStroke	Do stroke or not this line segment

Definition at line 3920 of file polyver.cpp.

void a2dVpath::CBCurveTo	(	double	x1,
		double	y1,
		double	x3,
		double	y3,
		bool	withStroke = `true`
	)

add a quadratic bezier segment to the path, using the previous segment.

Parameters:

	x1	endpoint of curve
	y1	endpoint of curve
	x3	second control point coming from previous segment in path
	y3	second control point coming from previous segment in path
	withStroke	Do stroke or not this line segment

Remarks:: x2 first control point is mirror of second control point of previous segment in path, if Cubic else last endpoint
y2 first control point is mirror of second control point of previous segment in path, if Cubic else last endpoint

Definition at line 3928 of file polyver.cpp.

void a2dVpath::ArcTo	(	double	x1,
		double	y1,
		double	x2,
		double	y2,
		bool	withStroke = `true`
	)

add an arc segment to the path

Begin point of arc is position/endpoint of previous segment

Parameters:

	x1	x of arc endpoint
	y1	y of arc endpoint
	x2	x of arc midpoint
	y2	y of arc midpoint
	withStroke	Do stroke or not this line segment

Definition at line 3936 of file polyver.cpp.

void a2dVpath::ArcTo	(	double	xc,
		double	yc,
		double	angle,
		bool	withStroke = `true`
	)

add an arc segment to the path, using the previous segment

Begin point of arc is position/endpoint of previous segment

Parameters:

	xc	x of arc center
	yc	y of arc center
	angle	angle of arc in degrees relative from the previous segment endpoint (negatif for clockwise)
	withStroke	Do stroke or not this line segment

Definition at line 3944 of file polyver.cpp.

void a2dVpath::ArcTo	(	double	xc,
		double	yc,
		double	x1,
		double	y1,
		double	x2,
		double	y2,
		bool	withStroke = `true`
	)

add an arc segment to the path, using the previous segment

Begin point of arc is position/endpoint of previous segment

Parameters:

	xc	x of arc center
	yc	y of arc center
	x1	x of arc endpoint
	y1	y of arc endpoint
	x2	x (xc,yc) ( x2,y2) define a line which the arc will cross
	y2	y (xc,yc) ( x2,y2) define a line which the arc will cross
	withStroke	Do stroke or not this line segment

Remarks:: radius is defined by prev segment endpoint and (xc,yc), x1,y1 is adjusted to fit radius.

Definition at line 3952 of file polyver.cpp.

void a2dVpath::Close ( bool withStroke = true )

Closing the path as a filled area.

The part sinve the last move is close to that move vertex.

Parameters:

withStroke

Do stroke or not this line segment

Definition at line 3960 of file polyver.cpp.

void a2dVpath::ConvertToPolygon	(	a2dListOfa2dVertexList &	addTo,
		bool	arc = `true`
	)

Convert to a a2dVertexList, taking and assuming it has only closed contours in path. Replacing non line (and arc segments if arc is true) with line segments.

Definition at line 4270 of file polyver.cpp.

void a2dVpath::Contour	(	double	distance,
		a2dPATH_END_TYPE	pathtype
	)

create an offset contour at distance

From all path parts a version is created that surrounds the original part at the given distance.

Definition at line 4386 of file polyver.cpp.

void a2dVpath::Transform ( const a2dAffineMatrix & world )

transform all segments with given matrix

Remarks:: complex segments will be broken down to lines.

Definition at line 4032 of file polyver.cpp.

The documentation for this class was generated from the following files:


Public Member Functions
	a2dVpath (a2dVertexArray &vertexArray, bool moveToFirst=true, bool closeLast=false)
	a2dVpath (a2dVertexList &vertexList, bool moveToFirst=true, bool closeLast=false)
	~a2dVpath ()
	destructor
a2dVpath &	operator= (const a2dVpath &other)
	operator =
double	Length ()
	calculate length of path, assuming continues path.
bool	IsPolygon (bool allowArc=true)
	test if closed polygon ( a2dPATHSEG_MOVETO, a2dPATHSEG_LINETO, a2dPATHSEG_ARCTO )
bool	IsPolyline (bool allowArc=true)
	test if polyline ( a2dPATHSEG_MOVETO, a2dPATHSEG_LINETO, a2dPATHSEG_ARCTO )
void	Add (a2dVpathSegment *seg)
	add a segment
void	Add (a2dVertexArray &vertexArray, bool moveToFirst=true, bool closeLast=false)
	add a vertexArray to an existing path
void	Add (a2dVertexList &vertexList, bool moveToFirst=true, bool closeLast=false)
	add a vertexlist to an existing path
void	MoveTo (double x, double y)
	add a MoveTo command to the path
void	LineTo (double x, double y, bool withStroke=true)
	add a LineTo command to the path
void	QBCurveTo (double x1, double y1, double x2, double y2, bool withStroke=true)
	add a quadratic bezier segment to the path
void	QBCurveTo (double x1, double y1, bool withStroke=true)
	add a quadratic bezier segment to the path, using the previous segment.
void	CBCurveTo (double x1, double y1, double x2, double y2, double x3, double y3, bool withStroke=true)
	add a quadratic bezier segment to the path
void	CBCurveTo (double x1, double y1, double x3, double y3, bool withStroke=true)
	add a quadratic bezier segment to the path, using the previous segment.
void	ArcTo (double x1, double y1, double x2, double y2, bool withStroke=true)
	add an arc segment to the path
void	ArcTo (double xc, double yc, double angle, bool withStroke=true)
	add an arc segment to the path, using the previous segment
void	ArcTo (double xc, double yc, double x1, double y1, double x2, double y2, bool withStroke=true)
	add an arc segment to the path, using the previous segment
void	Close (bool withStroke=true)
	Closing the path as a filled area.
void	ConvertToLines ()
	Convert complex segments to line segments.
void	ConvertToPolygon (a2dListOfa2dVertexList &addTo, bool arc=true)
void	Contour (double distance, a2dPATH_END_TYPE pathtype)
	create an offset contour at distance
void	Transform (const a2dAffineMatrix &world)
	transform all segments with given matrix
a2dBoundingBox	GetBbox (const a2dAffineMatrix &lworld=a2dIDENTITY_MATRIX)
	return a boundingbox of a transformed a2dVpath

a2dVpath Class Reference [vector path a2dCanvasObject plus segment classes]

Public Member Functions

Detailed Description

Member Function Documentation

a2dVpath Class Reference
[vector path a2dCanvasObject plus segment classes]