RTriangle

Class in Math Module
Header: #include <src/core/math/RTriangle.h>
Inherits: RShape, RExplodable

Description

Low-level mathematical representation of a triangle.

Scriptable: This class is available in script environments.

Shared Pointer Support: Objects can be used in QSharedPointer.

Copyable: Objects are cleaned up automatically by the garbage collector of the script engine.

Stream Operator: Object has a stream operator to present itself as string, for example when using toString() in a script.

Public Functions

	RTriangle()
	RTriangle(const RVector &p1, const RVector &p2, const RVector &p3) Creates a triangle with the given corners.
virtual	~RTriangle()
virtual QSharedPointer< RShape >	clone() const
QSharedPointer< RTriangle >	cloneToTriangle() const
virtual bool	flipHorizontal()
virtual bool	flipVertical()
double	getArea() const
virtual RBox	getBoundingBox() const
virtual QList< RVector >	getCenterPoints() const
RVector	getCorner(int i) const
double	getD() const
virtual double	getDistanceTo(const RVector &point, bool limited=true, double strictRange=RMAXDOUBLE) const
virtual QList< RVector >	getEndPoints() const
virtual QList< QSharedPointer< RShape > >	getExploded(int segments=RDEFAULT_MIN1) const
virtual double	getLength() const
virtual QList< RVector >	getMiddlePoints() const
virtual RVector	getNormal() const
RS::Orientation	getOrientation() const
virtual QList< RVector >	getPointCloud(double segmentLength) const
virtual QList< RVector >	getPointsWithDistanceToEnd(double distance, int from=RS::FromAny) const
RPolyline	getPolyline() const
virtual RShape::Type	getShapeType() const
virtual QSharedPointer< RShape >	getTransformed(const QTransform &transform) const
virtual QList< RVector >	getVectorProperties() const
virtual RVector	getVectorTo(const RVector &point, bool limited=true, double strictRange=RMAXDOUBLE) const
bool	isPointInQuadrant(const RVector &p) const
bool	isPointInTriangle(const RVector &p, bool treatAsQuadrant=false) const
virtual bool	mirror(const RLine &axis)
virtual bool	move(const RVector &offset)
virtual bool	reverse()
virtual bool	rotate(double rotation, const RVector &center=RDEFAULT_RVECTOR)
virtual bool	scale(const RVector &scaleFactors, const RVector &center=RDEFAULT_RVECTOR)
void	setCorner(int i, const RVector &p)
void	setCorners(const RVector &c1, const RVector &c2, const RVector &c3)
virtual void	setZ(double z)

Static Public Functions

static RTriangle	createArrow(const RVector &position, double direction, double size)

Public Attributes

RVector	corner

Protected Functions

virtual void	print(QDebug dbg) const

Member Documentation

RTriangle

RTriangle::RTriangle()

All rights reserved.

This file is part of the QCAD project.

QCAD 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 3 of the License, or (at your option) any later version.

QCAD 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 QCAD. Creates a triangle with invalid corner points.

RTriangle

RTriangle::RTriangle(const RVector &p1, const RVector &p2, const RVector &p3)

Creates a triangle with the given corners.

~RTriangle

virtual RTriangle::~RTriangle()

virtual

clone

virtual QSharedPointer< RShape > RTriangle::clone() const

virtual inline const

Reimplemented from clone.

cloneToTriangle

QSharedPointer< RTriangle > RTriangle::cloneToTriangle() const

inline const

flipHorizontal

virtual bool RTriangle::flipHorizontal()

virtual inline

Reimplemented from flipHorizontal.

flipVertical

virtual bool RTriangle::flipVertical()

virtual inline

Reimplemented from flipVertical.

getArea

double RTriangle::getArea() const

const

getBoundingBox

virtual RBox RTriangle::getBoundingBox() const

virtual const

Returns: The bounding box of this shape.

Reimplemented from getBoundingBox.

getCenterPoints

virtual QList< RVector > RTriangle::getCenterPoints() const

virtual const

Returns: The center point(s) of this shape.

Reimplemented from getCenterPoints.

getCorner

RVector RTriangle::getCorner(int i) const

const

getD

double RTriangle::getD() const

const

Returns: ‘d’ in the plane equation ‘ax + by + cz = d’.

getDistanceTo

virtual double RTriangle::getDistanceTo(const RVector &point, bool limited=true, double strictRange=RMAXDOUBLE) const

virtual const

Returns: Shortest distance from this shape to the given point. Based on getVectorTo.

Reimplemented from getDistanceTo.

getEndPoints

virtual QList< RVector > RTriangle::getEndPoints() const

virtual const

Returns: The end point(s) of this shape.

Reimplemented from getEndPoints.

getExploded

virtual QList< QSharedPointer< RShape > > RTriangle::getExploded(int segments=RDEFAULT_MIN1) const

virtual const

Returns: List of RLines describing this triangle.

Reimplemented from getExploded.

getLength

virtual double RTriangle::getLength() const

virtual const

Returns: The total length of this shape if applicable or NaN if not.

Reimplemented from getLength.

getMiddlePoints

virtual QList< RVector > RTriangle::getMiddlePoints() const

virtual const

Returns: The middle point(s) of this shape.

Reimplemented from getMiddlePoints.

getNormal

virtual RVector RTriangle::getNormal() const

virtual const

See also: http://en.wikipedia.org/wiki/Normal_vector

See also: http://en.wikipedia.org/wiki/Cross_product#Definition

Returns: The normal vector of this triangle. The length of the normal vector equals double the area of the triangle.

getOrientation

RS::Orientation RTriangle::getOrientation() const

const

getPointCloud

virtual QList< RVector > RTriangle::getPointCloud(double segmentLength) const

virtual const

Reimplemented from getPointCloud.

getPointsWithDistanceToEnd

virtual QList< RVector > RTriangle::getPointsWithDistanceToEnd(double distance, int from=RS::FromAny) const

virtual const

Returns: All points on this shape with the given distance to an endpoint.

Reimplemented from getPointsWithDistanceToEnd.

getPolyline

RPolyline RTriangle::getPolyline() const

const

getShapeType

virtual RShape::Type RTriangle::getShapeType() const

virtual inline const

Reimplemented from getShapeType.

getTransformed

virtual QSharedPointer< RShape > RTriangle::getTransformed(const QTransform &transform) const

virtual inline const

Reimplemented from getTransformed.

getVectorProperties

virtual QList< RVector > RTriangle::getVectorProperties() const

virtual const

Reimplemented from getVectorProperties.

getVectorTo

virtual RVector RTriangle::getVectorTo(const RVector &point, bool limited=true, double strictRange=RMAXDOUBLE) const

virtual const

Returns: Shortest vector from this shape to the given point.

Parameters:

• point: the given point
• limited: If false, the shape is treated as an unlimited shape that extends in a logical way. For example an unlimited line for a line, full circle for an arc or a plane for a triangle.

Reimplemented from getVectorTo.

isPointInQuadrant

bool RTriangle::isPointInQuadrant(const RVector &p) const

const

isPointInTriangle

bool RTriangle::isPointInTriangle(const RVector &p, bool treatAsQuadrant=false) const

const

Returns: True if the given point is inside this triangle.

Parameters:

• ip: the point
• treatAsQuadrant: If treatAsQuadrant is true, the triangle is treated as an open quadrant or segment with its center at the first corner. In this case, the point is inside, if it is on the plane that is limited by the two rays corner[0] -> corner[1] and corner[0] -> corner[2].

mirror

virtual bool RTriangle::mirror(const RLine &axis)

virtual inline

Reimplemented from mirror.

move

virtual bool RTriangle::move(const RVector &offset)

virtual inline

Reimplemented from move.

reverse

virtual bool RTriangle::reverse()

virtual

Reimplemented from reverse.

rotate

virtual bool RTriangle::rotate(double rotation, const RVector &center=RDEFAULT_RVECTOR)

virtual inline

Reimplemented from rotate.

scale

virtual bool RTriangle::scale(const RVector &scaleFactors, const RVector &center=RDEFAULT_RVECTOR)

virtual inline

Reimplemented from scale.

setCorner

void RTriangle::setCorner(int i, const RVector &p)

setCorners

void RTriangle::setCorners(const RVector &c1, const RVector &c2, const RVector &c3)

setZ

virtual void RTriangle::setZ(double z)

virtual

Reimplemented from setZ.

createArrow

static RTriangle RTriangle::createArrow(const RVector &position, double direction, double size)

static

corner

RVector RTriangle::corner[3] [3]

print

virtual void RTriangle::print(QDebug dbg) const

virtual const protected

Reimplemented from print.