几何命令 目前有以下几何命令： AffineRatio Angle AngleBisector Arc Area AreCollinear AreConcurrent AreConcyclic AreCongruent AreEqual AreParallel ArePerpendicular Barycenter Centroid Circle CircularArc CircularSector CircumcircularArc CircumcircularSector Circumference ClosestPoint ClosestPointRegion CrossRatio Cubic Difference Direction Distance Envelope Incircle InteriorAngles Intersect IntersectPath IsInRegion IsTangent Length Line Locus LocusEquation Midpoint PathParameter Perimeter PerpendicularBisector PerpendicularLine Point PointIn Polygon Polyline Prove ProveDetails Radius RandomPointIn Ray RigidPolygon Sector Segment Semicircle Slope Tangent TriangleCenter TriangleCurve Trilinear Union Type Vertex