GeomPoly (Nape Physics Library)

type: class

Polygon class with various geometric methods

This class represents a general Polygon, rather than the Polygon class which is physics shape.

Internally this polygon is stored as a circularly linked list of special vertex types that are exposed via a Vec2 that is lazily constructed whenever necessary to the API.

Static Methods

Allocate GeomPoly from object pool.

Constructor

Create a new GeomPoly polygon.

Instance Methods

Compute area of weakly-simple polygon.

Haxe iterator over vertices of polygon.

Find bottom most vertex of polygon.

Determine bounds of polygon.

Clear all vertices from polygon.

Determine if point is contained in polygon.

Produce a decomposition of weakly-simple polygon into convex components.

Copy this polygon.

Current vertex at head of polygon.

Cut simple polygon with line.

Release this GeomPoly to global object pool.

Determine if polygon is empty.

Erase count number of elements

Haxe iterator over vertices of polygon.

Inflate/Deflate polygon.

Determine if polygon is clockwise wound.

Determine if weakly-simple polygon is convex.

Determine if weakly-simple polygon is degenerate.

Determine if polygon is y-monotone.

Determine if polygon is strictly simple.

Haxe iterator over vertices of polygon.

Find left most vertex of polygon.

Produce a decomposition of weakly-simple polygon into monotone components.

Pop vertex from polygon.

Push vertex to polygon.

Find right most vertex of polygon.

Shift vertex from polygon.

Produce a decomposition of complex polygon into simple components.

Simplify polygon.

Determine number of vertices in polygon

Advance head of polygon backwards.

Advance head of polygon forward.

Find top most vertex of polygon.

Transform polygon by given matrix.

Produce a decomposition of weakly-simple polygon into triangles.

Unshift vertex to polygon.

Compute the winding order for this polygon.

nape.geom.GeomPoly

Static Methods

static function get(vertices:Dynamic = null):GeomPoly

Constructor

Instance Methods

function area():Float

inline function backwardsIterator():GeomVertexIterator

function bottom():Vec2

function bounds():AABB

function clear():GeomPoly

function contains(point:Vec2):Bool

function convexDecomposition(delaunay:Bool = false, output:GeomPolyList = null):GeomPolyList

function copy():GeomPoly

inline function current():Vec2

function cut(start:Vec2, end:Vec2, boundedStart:Bool = false, boundedEnd:Bool = false, output:GeomPolyList = null):GeomPolyList

function dispose():Void

inline function empty():Bool

function erase(count:Int):GeomPoly

inline function forwardIterator():GeomVertexIterator

function inflate(inflation:Float):GeomPoly

inline function isClockwise():Bool

function isConvex():Bool

inline function isDegenerate():Bool

inline function isMonotone():Bool

inline function isSimple():Bool

inline function iterator():GeomVertexIterator

function left():Vec2

function monotoneDecomposition(output:GeomPolyList = null):GeomPolyList

function pop():GeomPoly

function push(vertex:Vec2):GeomPoly

function right():Vec2

function shift():GeomPoly

function simpleDecomposition(output:GeomPolyList = null):GeomPolyList

function simplify(epsilon:Float):GeomPoly

function size():Int

inline function skipBackwards(times:Int):GeomPoly

function skipForward(times:Int):GeomPoly

function top():Vec2

function transform(matrix:Mat23):GeomPoly

function triangularDecomposition(delaunay:Bool = false, output:GeomPolyList = null):GeomPolyList

function unshift(vertex:Vec2):GeomPoly

function winding():Winding