InternalClipper

clipper.InternalClipper (Class)

Internal utility functions for Clipper operations.

Static Members

maxInt64: ClipperInt64
minInt64: ClipperInt64
maxCoord: ClipperInt64
invalid64: ClipperInt64
maxCoordFloat: Float
minCoordFloat: Float
floatingPointTolerance: Float
defaultMinimumEdgeLength: Float
toFloat(v: ClipperInt64): Float
Name Type
v ClipperInt64
Returns
Float
Name Type
v ClipperInt64
Returns
ClipperInt64
roundToInt64(value: Float): ClipperInt64
Name Type
value Float
Returns
ClipperInt64
roundToEvenInt64(value: Float): ClipperInt64
Name Type
value Float
Returns
ClipperInt64
triSign(x: ClipperInt64): Int
Name Type
x ClipperInt64
Returns
Int
Name Type
a ClipperInt64
b ClipperInt64
Returns
ClipperInt64
Name Type
a ClipperInt64
b ClipperInt64
Returns
ClipperInt64
checkPrecision(precision: Int): Void

Check precision is within valid range.

Name Type
precision Int
isAlmostZero(value: Float): Bool

Check if a floating point value is approximately zero.

Name Type
value Float
Returns
Bool
crossProduct(pt1: Point64, pt2: Point64, pt3: Point64): Float

Cross product of three points (returns double to avoid overflow).

Name Type
pt1 Point64
pt2 Point64
pt3 Point64
Returns
Float
crossProductSign(pt1: Point64, pt2: Point64, pt3: Point64): Int

Cross product sign with high precision (using 128-bit multiplication).

Name Type
pt1 Point64
pt2 Point64
pt3 Point64
Returns
Int
multiplyUInt64(a: ClipperInt64, b: ClipperInt64): UInt128

Multiply two 64-bit unsigned integers to get 128-bit result.

Name Type
a ClipperInt64
b ClipperInt64
Returns
UInt128
productsAreEqual(a: ClipperInt64, b: ClipperInt64, c: ClipperInt64, d: ClipperInt64): Bool

Check if products ab and cd are equal (using 128-bit precision).

Name Type
a ClipperInt64
b ClipperInt64
c ClipperInt64
d ClipperInt64
Returns
Bool
isCollinear(pt1: Point64, sharedPt: Point64, pt2: Point64): Bool

Check if three points are collinear.

Name Type
pt1 Point64
sharedPt Point64
pt2 Point64
Returns
Bool
dotProduct(pt1: Point64, pt2: Point64, pt3: Point64): Float

Dot product of three points.

Name Type
pt1 Point64
pt2 Point64
pt3 Point64
Returns
Float
crossProductD(vec1: PointD, vec2: PointD): Float

Cross product of two PointD vectors.

Name Type
vec1 PointD
vec2 PointD
Returns
Float
dotProductD(vec1: PointD, vec2: PointD): Float

Dot product of two PointD vectors.

Name Type
vec1 PointD
vec2 PointD
Returns
Float
checkCastInt64(val: Float): ClipperInt64

Check cast to ClipperInt64, returns Invalid64 if out of range.

Name Type
val Float
Returns
ClipperInt64
getLineIntersectPt64(ln1a: Point64, ln1b: Point64, ln2a: Point64, ln2b: Point64): AnonStruct

Get line intersection point (Point64 version). Returns true if lines are non-parallel. ip is constrained to seg1.

Name Type
ln1a Point64
ln1b Point64
ln2a Point64
ln2b Point64
Returns
AnonStruct
getLineIntersectPtD(ln1a: PointD, ln1b: PointD, ln2a: PointD, ln2b: PointD): AnonStruct

Get line intersection point (PointD version).

Name Type
ln1a PointD
ln1b PointD
ln2a PointD
ln2b PointD
Returns
AnonStruct
segsIntersect(seg1a: Point64, seg1b: Point64, seg2a: Point64, seg2b: Point64, ?inclusive: Bool = false): Bool

Check if two segments intersect.

Name Type Default
seg1a Point64
seg1b Point64
seg2a Point64
seg2b Point64
inclusive Bool false
Returns
Bool
getBounds(path: Path64): Rect64

Get bounding rectangle of a path.

Name Type
path Path64
Returns
Rect64
getClosestPtOnSegment(offPt: Point64, seg1: Point64, seg2: Point64): Point64

Get closest point on segment to off point.

Name Type
offPt Point64
seg1 Point64
seg2 Point64
Returns
Point64
pointInPolygon(pt: Point64, polygon: Path64): PointInPolygonResult

Point in polygon test.

Name Type
pt Point64
polygon Path64
Returns
PointInPolygonResult
path2ContainsPath1(path1: Path64, path2: Path64): Bool

Check if path2 contains path1.

Name Type
path1 Path64
path2 Path64
Returns
Bool
area(path: Path64): Float

Calculate the signed area of a polygon path. Returns positive for counter-clockwise paths, negative for clockwise.

Name Type
path Path64
Returns
Float
areaPaths(paths: Paths64): Float

Calculate the signed area of multiple paths.

Name Type
paths Paths64
Returns
Float

Private Members

precisionRangeError: String

Metadata

Name Parameters
:hxGen -