Method MakeValid

Namespace

GeometryHelper.Core

Assembly

GeometryHelper.dll

MakeValid(GeoPolygon2)

Gets the region a polygon covers as faces that do not cross themselves, using the default tolerance.

public static GeoFace2[] MakeValid(GeoPolygon2 polygon)

Parameters

polygon GeoPolygon2

Returns

GeoFace2[]

MakeValid(GeoPolygon2, Tolerance)

Gets the region a polygon covers as faces that do not cross themselves, within a tolerance.

public static GeoFace2[] MakeValid(GeoPolygon2 polygon, Tolerance tolerance)

Parameters

polygon GeoPolygon2

The polygon, which may cross itself.

tolerance Tolerance

The tolerance.

Returns

GeoFace2[]

The region the polygon covers, read as Locate and the booleans read it — a point is inside when a ray from it crosses the outline an odd number of times — one face per piece; a simple polygon comes back as the one face it is.

Remarks

A polygon crossing itself is accepted as it is drawn, and its Area is the shoelace sum, in which the lobes wound the other way count against the rest: a figure of eight with lobes of 608 and 3 measures 605. The booleans and Locate read the region it covers instead, 611. These faces are that region, so their areas add up to what the other questions see.

Exceptions

ArgumentNullException

Thrown when the polygon is null.