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18.2.10. Class MultiCurve

A MultiCurve is a geometry collection composed of Curve elements. MultiCurve is a non-instantiable class.

MultiCurve Properties

  • A MultiCurve is a one-dimensional geometry.

  • A MultiCurve is simple if and only if all of its elements are simple; the only intersections between any two elements occur at points that are on the boundaries of both elements.

  • A MultiCurve boundary is obtained by applying the “mod 2 union rule” (also known as the “odd-even rule”): A point is in the boundary of a MultiCurve if it is in the boundaries of an odd number of MultiCurve elements.

  • A MultiCurve is closed if all of its elements are closed.

  • The boundary of a closed MultiCurve is always empty.


 
 
  Published under the terms of the GNU General Public License Design by Interspire