@technobuddha > library > Geometry > Polygon

Function: isIntersecting()

function isIntersecting(shape: LineSegment | Polygon, polygon: Polygon): boolean;

Defined in: is-intersecting.ts:34

Determines whether a given shape (either a LineSegment or a Polygon) intersects with a polygon.

Parameters

Parameter	Type	Description
shape	LineSegment | Polygon	The shape to test for intersection, which can be either a LineSegment or a Polygon.
polygon	Polygon	The polygon to test against.

Returns

boolean

true if the shape intersects with the polygon, otherwise false.

Example

isIntersecting(
  { x0: -1, y0: 0.5, x1: 2, y1: 0.5 },
  [ { x: 0, y: 0 }, { x: 1, y: 0 }, { x: 1, y: 1 }, { x: 0, y: 1 } ],
); // true
isIntersecting(
  [ { x: 0, y: 0 }, { x: 2, y: 0 },  { x: 1, y: 2 } ],
  [ { x: 1, y: 1 }, { x: 3, y: 1 }, { x: 3, y: 3 }, { x: 1, y: 3 } ],
); // true

Remarks

• If shape is a Polygon, the function checks if any of its edges intersect with the given polygon, or if two of its vertices lie on the polygon.
• If shape is a LineSegment, the function checks if it intersects with any edge of the polygon, or if both endpoints of a polygon edge lie on the line segment.