qgsarrowsymbollayer.cpp File Reference

#include "qgsarrowsymbollayer.h"
#include "qgssymbollayerutils.h"

Include dependency graph for qgsarrowsymbollayer.cpp:

Go to the source code of this file.

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	euclidian_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

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

Definition at line 381 of file qgsarrowsymbollayer.cpp.

qreal clampAngle ( qreal  a )

inline

Definition at line 326 of file qgsarrowsymbollayer.cpp.

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 455 of file qgsarrowsymbollayer.cpp.

qreal euclidian_distance ( QPointF  po, QPointF  pd  )

inline

Definition at line 196 of file qgsarrowsymbollayer.cpp.

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

Definition at line 387 of file qgsarrowsymbollayer.cpp.

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 339 of file qgsarrowsymbollayer.cpp.

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

Definition at line 407 of file qgsarrowsymbollayer.cpp.

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 201 of file qgsarrowsymbollayer.cpp.