shape_utils.h File Reference

Utility functions for working with shapes. More...

#include <array>
#include <optional>
#include <math/vector2d.h>
#include <math/box2.h>
#include <geometry/direction45.h>

Go to the source code of this file.

Namespaces
namespace	KIGEOM

Functions
SEG	KIGEOM::NormalisedSeg (const SEG &aSeg)
	Returns a SEG such that the start point is smaller or equal in x and y compared to the end point.
const VECTOR2I &	KIGEOM::GetOtherEnd (const SEG &aSeg, const VECTOR2I &aPoint)
	Get the end point of the segment that is not the given point.
OPT_VECTOR2I	KIGEOM::GetSharedEndpoint (const SEG &aSegA, const SEG &aSegB)
	Get the shared endpoint of two segments, if it exists, or std::nullopt if the segments are not connected end-to-end.
std::array< SEG, 4 >	KIGEOM::BoxToSegs (const BOX2I &aBox)
	Decompose a BOX2 into four segments.
void	KIGEOM::CollectBoxCorners (const BOX2I &aBox, std::vector< VECTOR2I > &aCorners)
	Add the 4 corners of a BOX2I to a vector.
std::vector< SEG >	KIGEOM::GetSegsInDirection (const BOX2I &aBox, DIRECTION_45::Directions aDir)
	Get the segments of a box that are in the given direction.
std::optional< SEG >	KIGEOM::ClipHalfLineToBox (const HALF_LINE &aRay, const BOX2I &aBox)
	Get the segment of a half-line that is inside a box, if any.
std::optional< SEG >	KIGEOM::ClipLineToBox (const LINE &aLine, const BOX2I &aBox)
	Get the segment of a line that is inside a box, if any.
SHAPE_ARC	KIGEOM::MakeArcCw90 (const VECTOR2I &aCenter, int aRadius, DIRECTION_45::Directions aDir)
	Get a SHAPE_ARC representing a 90-degree arc in the clockwise direction with the midpoint in the given direction from the center.
SHAPE_ARC	KIGEOM::MakeArcCw180 (const VECTOR2I &aCenter, int aRadius, DIRECTION_45::Directions aDir)
	Get a SHAPE_ARC representing a 180-degree arc in the clockwise direction with the midpoint in the given direction from the center.
VECTOR2I	KIGEOM::GetPoint (const SHAPE_RECT &aRect, DIRECTION_45::Directions aDir, int aOutset=0)
	Get the point on a rectangle that corresponds to a given direction.
std::vector< TYPED_POINT2I >	KIGEOM::GetCircleKeyPoints (const CIRCLE &aCircle, bool aIncludeCenter)
	Get key points of an CIRCLE.
SHAPE_LINE_CHAIN	KIGEOM::RectifyPolygon (const SHAPE_LINE_CHAIN &aPoly)

Detailed Description

Utility functions for working with shapes.

These are free functions to avoid bloating the shape classes with functions that only need to be used in a few places and can just use the public interfaces.

Definition in file shape_utils.h.