TreeView Knowledge Base Browser - TwoDimensionalFigure

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Sigma KEE - TwoDimensionalFigure

二維圖

The class of GeometricFigures that have position and an extension along two dimensions, viz. plane figures like circles and polygons.

Relationships
Parents	幾何圖	The class of all geometric figures, i.e. the class of all abstract, spatial representations. The instances of this class are GeometricPoints, TwoDimensionalFigures or ThreeDimensionalFigures.
Children	封閉的二維圖	Any TwoDimensionalFigure which has a well defined interior and exterior.
	開放二維圖	The class of TwoDimensionalFigures that are not ClosedTwoDimensionalFigures.