qgsarrowsymbollayer.cpp File Reference

#include "qgsarrowsymbollayer.h"
#include "qgssymbollayerutils.h"
#include "qgsfillsymbol.h"
#include "qgsrendercontext.h"

Include dependency graph for qgsarrowsymbollayer.cpp:

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Functions
QPointF	circlePoint (QPointF center, qreal radius, qreal angle)
qreal	clampAngle (qreal a)
QPolygonF	curvedArrow (QPointF po, QPointF pm, QPointF pd, qreal startWidth, qreal width, qreal headWidth, qreal headHeight, QgsArrowSymbolLayer::HeadType headType, QgsArrowSymbolLayer::ArrowType arrowType, qreal offset)
qreal	euclidean_distance (QPointF po, QPointF pd)
void	pathArcTo (QPainterPath &path, QPointF circleCenter, qreal circleRadius, qreal angle_o, qreal angle_d, int direction)
bool	pointsToCircle (QPointF a, QPointF b, QPointF c, QPointF &center, qreal &radius)
	Compute the circumscribed circle from three points. More...
void	spiralArcTo (QPainterPath &path, QPointF center, qreal startAngle, qreal startRadius, qreal endAngle, qreal endRadius, int direction)
QPolygonF	straightArrow (QPointF po, QPointF pd, qreal startWidth, qreal width, qreal headWidth, qreal headHeight, QgsArrowSymbolLayer::HeadType headType, QgsArrowSymbolLayer::ArrowType arrowType, qreal offset)

Function Documentation

circlePoint()

QPointF circlePoint	(	QPointF	center,
		qreal	radius,
		qreal	angle
	)

Definition at line 409 of file qgsarrowsymbollayer.cpp.

clampAngle()

qreal clampAngle ( qreal  a )

inline

Definition at line 354 of file qgsarrowsymbollayer.cpp.

curvedArrow()

QPolygonF curvedArrow	(	QPointF	po,
		QPointF	pm,
		QPointF	pd,
		qreal	startWidth,
		qreal	width,
		qreal	headWidth,
		qreal	headHeight,
		QgsArrowSymbolLayer::HeadType	headType,
		QgsArrowSymbolLayer::ArrowType	arrowType,
		qreal	offset
	)

Definition at line 483 of file qgsarrowsymbollayer.cpp.

euclidean_distance()

qreal euclidean_distance ( QPointF  po, QPointF  pd  )

inline

Definition at line 224 of file qgsarrowsymbollayer.cpp.

pathArcTo()

void pathArcTo	(	QPainterPath &	path,
		QPointF	circleCenter,
		qreal	circleRadius,
		qreal	angle_o,
		qreal	angle_d,
		int	direction
	)

Definition at line 415 of file qgsarrowsymbollayer.cpp.

pointsToCircle()

bool pointsToCircle	(	QPointF	a,
		QPointF	b,
		QPointF	c,
		QPointF &	center,
		qreal &	radius
	)

Compute the circumscribed circle from three points.

Returns

false if the three points are colinear

Definition at line 367 of file qgsarrowsymbollayer.cpp.

spiralArcTo()

void spiralArcTo	(	QPainterPath &	path,
		QPointF	center,
		qreal	startAngle,
		qreal	startRadius,
		qreal	endAngle,
		qreal	endRadius,
		int	direction
	)

Definition at line 435 of file qgsarrowsymbollayer.cpp.

straightArrow()

QPolygonF straightArrow	(	QPointF	po,
		QPointF	pd,
		qreal	startWidth,
		qreal	width,
		qreal	headWidth,
		qreal	headHeight,
		QgsArrowSymbolLayer::HeadType	headType,
		QgsArrowSymbolLayer::ArrowType	arrowType,
		qreal	offset
	)

Definition at line 229 of file qgsarrowsymbollayer.cpp.