IntelliHelper Namespace Reference

Functions
float	sign (QPoint &p1, QPoint &p2, QPoint &p3)
	A function to get the 2*area of a traingle, using its determinat. More...
bool	isInTriangle (Triangle &tri, QPoint &P)
	A function to check if a given point is in a triangle. More...
std::vector< Triangle >	calculateTriangles (std::vector< QPoint > polyPoints)
	A function to split a polygon in its spanning traingles by using Meisters Theorem of graph theory by clipping ears of a planar graph. More...
bool	isInPolygon (std::vector< Triangle > &triangles, QPoint &point)
	A function to check if a point lies in a polygon by checking its spanning triangles. More...

Function Documentation

calculateTriangles()

std::vector< Triangle > IntelliHelper::calculateTriangles

(

std::vector< QPoint >

polyPoints

)

A function to split a polygon in its spanning traingles by using Meisters Theorem of graph theory by clipping ears of a planar graph.

Parameters

polyPoints

- The Vertices of the polygon.

Returns

Returns a Container of disjoint Triangles, which desribe the polygon area.

Definition at line 7 of file IntelliHelper.cpp.

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isInPolygon()

bool IntelliHelper::isInPolygon	(	std::vector< Triangle > &	triangles,
		QPoint &	point
	)

A function to check if a point lies in a polygon by checking its spanning triangles.

Parameters

triangles	- The spanning triangles of the planar polygon.
point	- The point to checl, if it lies in the polygon.

Returns

Returns true if the point lies in the üpolygon, otherwise false.

Definition at line 116 of file IntelliHelper.cpp.

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isInTriangle()

bool IntelliHelper::isInTriangle ( Triangle &  tri, QPoint &  P  )

inline

A function to check if a given point is in a triangle.

Parameters

tri	- The triangle to check, if it contains the point.
P	- The point to check if it is in the triangle.

Returns

Returns true if the point is in the triangle, false otheriwse

Definition at line 33 of file IntelliHelper.h.

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sign()

float IntelliHelper::sign ( QPoint &  p1, QPoint &  p2, QPoint &  p3  )

inline

A function to get the 2*area of a traingle, using its determinat.

Parameters

p1	- The Point to check its side.
p2	- The first Point of the spanning Line
p3	- The second Point of the spanning line.

Returns

Returns the area of the traingle*2

Definition at line 23 of file IntelliHelper.h.

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