UnionRegion Class
- A
UnionRegion
is a collection of other planar region types --Loop
andParityRegion
. - The composite is the union of the contained regions.
- A point is "in" the composite if it is "in" one or more of the contained regions.
Extends
Methods
Name | Description | |
---|---|---|
constructor(): UnionRegion | Constructor -- initialize with no children | |
announceToCurveProcessor(processor: RecursiveCurveProcessor, indexInParent: number = -1): void | dispatch to more strongly typed processor.announceUnionRegion(this, indexInParent) |
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cloneEmptyPeer(): UnionRegion | Return new empty UnionRegion |
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cloneStroked(options?: StrokeOptions): UnionRegion | Return structural clone with stroked primitives. | |
dgnBoundaryType(): number | Return the boundary type (5) of a corresponding MicroStation CurveVector | |
dispatchToGeometryHandler(handler: GeometryHandler): any | Second step of double dispatch: call handler.handleUnionRegion(this) |
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getChild(i: number): Loop | ParityRegion | undefined | Return a child identified by index. | |
isSameGeometryClass(other: GeometryQuery): boolean | test if other is a UnionRegion |
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tryAddChild(child: AnyCurve): boolean | add a child. | |
create(...data: Array<ParityRegion | Loop>): UnionRegion Static | Create a UnionRegion with given region children |
Inherited methods
Name | Inherited from | Description |
---|---|---|
checkForNonLinearPrimitives(): boolean | CurveCollection | return true if the curve collection has any primitives other than LineSegment3d and LineString3d |
clone(): CurveCollection | undefined | CurveCollection | Return a deep copy. |
cloneTransformed(transform: Transform): CurveCollection | undefined | CurveCollection | Create a deep copy of transformed curves. |
cloneWithExpandedLineStrings(): CurveCollection | undefined | CurveCollection | Create a deep copy with all linestrings expanded to multiple LineSegment3d. |
collectCurvePrimitives(): CurvePrimitive[] | CurveCollection | Return an array containing only the curve primitives. |
extendRange(rangeToExtend: Range3d, transform?: Transform): void | CurveCollection | Extend (increase) rangeToExtend as needed to include these curves (optionally transformed) |
isAlmostEqual(other: GeometryQuery): boolean | GeometryQuery | test for exact structure and nearly identical geometry. |
maxGap(): number | CurveCollection | return the max gap between adjacent primitives in Path and Loop collections. |
range(transform?: Transform, result?: Range3d): Range3d | GeometryQuery | return the range of the entire (tree) GeometryQuery |
sumLengths(): number | CurveCollection | Return the sum of the lengths of all contained curves. |
tryTransformInPlace(transform: Transform): boolean | CurveCollection | Apply transform recursively to children |
tryTranslateInPlace(dx: number, dy: number = 0, dz: number = 0): boolean | GeometryQuery | try to move the geometry by dx,dy,dz |
createCurveLocationDetailOnAnyCurvePrimitive(source: GeometryQuery | undefined, fraction: number = 0.5): CurveLocationDetail | undefined Static | CurveCollection | * Find any curve primitive in the source. |
Properties
Name | Type | Description | |
---|---|---|---|
_children Protected | Array<ParityRegion | Loop> | collection of Loop and ParityRegion children. | |
children Accessor ReadOnly | Array<ParityRegion | Loop> | Return the array of regions | |
curveCollectionType | "unionRegion" = "unionRegion" | String name for schema properties |
Inherited properties
Name | Type | Inherited from | Description |
---|---|---|---|
geometryCategory | "curveCollection" = "curveCollection" | CurveCollection | String name for schema properties |
isAnyRegionType Accessor ReadOnly | boolean | CurveCollection | Return true for planar region types:Loop ParityRegion * UnionRegion |
isClosedPath Accessor ReadOnly | boolean | CurveCollection | Return true for a single-loop planar region type, i.e. Loop .* This is _not- a test for physical closure of a Path |
isInner | boolean | CurveCollection | Flag for inner loop status. |
isOpenPath Accessor ReadOnly | boolean | CurveCollection | Return true for a Path , i.e. a chain of curves joined head-to-tail |
Defined in
Last Updated: 08 January, 2020