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SegmentNormalVector


Header: FIL.h
Namespace: fil
Module: FoundationLite

Computes an unitary vector perpendicular to the segment.

Syntax

C++
C#
 
void fil::SegmentNormalVector
(
	const fil::Segment2D& inSegment,
	bool inReverse,
	fil::Vector2D& outNormalVector
)

Parameters

Name Type Default Description
Input value inSegment const Segment2D&
Input value inReverse bool True
Output value outNormalVector Vector2D&

Description

Note that because of inaccuracies of floating-point arithmetic, some geometric operations (including this one) may lead to unpredictable results for degenerated cases. In this filter such a case occurs when an empty segment is given on input.

Examples

SegmentNormalVector performed on a segment with parameters: X1 = 50, Y1 = 50, X2 = 300, Y2 = 300.
outNormalVector result shown on the right picture.