GeometryDisjoint (Function)

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GeometryDisjoint (Function)

In french: GéométrieDisjoint

Determines whether two geometries are disjoint, i.e. whether their intersection is empty.

Example

// Example 1: two disjoint polygons
o2DPolygon_1 is Polygon2D
Linestring2DAddPoint(o2DPolygon_1.Outline, -1.00, 3.00)
Linestring2DAddPoint(o2DPolygon_1.Outline, 0.00, 3.00)
Linestring2DAddPoint(o2DPolygon_1.Outline, -2.00, -1.00)
Linestring2DAddPoint(o2DPolygon_1.Outline, -3.00, -1.00)
// Add last point (same as first)
Linestring2DAddPoint(o2DPolygon_1.Outline, -1.00, 3.00)
o2DPolygon_1 = GeometryCorrect(o2DPolygon_1)

o2DPolygon_2 is Polygon2D
Linestring2DAddPoint(o2DPolygon_2.Outline, 2.00, 4.00)
Linestring2DAddPoint(o2DPolygon_2.Outline, 3.00, 4.00)
Linestring2DAddPoint(o2DPolygon_2.Outline, 3.00, -2.00)
Linestring2DAddPoint(o2DPolygon_2.Outline, -2.00, -2.00)
// Add last point (same as first)
Linestring2DAddPoint(o2DPolygon_2.Outline, 2.00, 4.00)
o2DPolygon_2 = GeometryCorrect(o2DPolygon_2)

Trace(GeometryDisjoint(o2DPolygon_1, o2DPolygon_2)) // True

// Example 2: two polygons with an intersection
o2DPolygon_1 is Polygon2D
Linestring2DAddPoint(o2DPolygon_1.Outline, -1.00, 3.00)
Linestring2DAddPoint(o2DPolygon_1.Outline, 0.00, 3.00)
Linestring2DAddPoint(o2DPolygon_1.Outline, -2.00, -1.00)
Linestring2DAddPoint(o2DPolygon_1.Outline, -3.00, -1.00)
// Add last point (same as first)
Linestring2DAddPoint(o2DPolygon_1.Outline, -1.00, 3.00)
o2DPolygon_1 = GeometryCorrect(o2DPolygon_1)

o2DPolygon_2 is Polygon2D
Linestring2DAddPoint(o2DPolygon_2.Outline, 1.00, 4.00)
Linestring2DAddPoint(o2DPolygon_2.Outline, 3.00, 4.00)
Linestring2DAddPoint(o2DPolygon_2.Outline, 3.00, 1.00)
Linestring2DAddPoint(o2DPolygon_2.Outline, -1.00, -1.00)
Linestring2DAddPoint(o2DPolygon_2.Outline, -3.00, 1.00)
// Add last point (same as first)
Linestring2DAddPoint(o2DPolygon_2.Outline, 1.00, 4.00)
o2DPolygon_2 = GeometryCorrect(o2DPolygon_2)

Trace(GeometryDisjoint(o2DPolygon_1, o2DPolygon_2)) // False

Syntax

<Result> = GeometryDisjoint(<Geometry A> , <Geometry B>)

<Result>: Boolean

True if the intersection of geometry A and geometry B is empty.
False otherwise.
If an error occurs, the ErrorOccurred variable is set to True. To get more details on the error, use ErrorInfo with the errMessage constant.

<Geometry A>: Variable containing spatial data

Variable corresponding to the first geometry. This geometry can correspond to one of the following variable types:
PointGeo.
Point2D.
LinestringGeo.
Linestring2D.
PolygonGeo.
Polygon2D.
MultiPointGeo.
MultiPoint2D.
MultiLinestringGeo.
MultiLinestring2D.
MultiPolygonGeo.
MultiPolygon2D.

<Geometry B>: Variable containing spatial data

Variable corresponding to the second geometry. This geometry can correspond to one of the following variable types:
PointGeo.
Point2D.
LinestringGeo.
Linestring2D.
PolygonGeo.
Polygon2D.
MultiPointGeo.
MultiPoint2D.
MultiLinestringGeo.
MultiLinestring2D.
MultiPolygonGeo.
MultiPolygon2D.

Business / UI classification: Business Logic

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