General Datum Point
A general datum point is created and constrained based on the selection context. The supported types are:
• Point on vertex
• Offset point
• Project point
• Point at intersection of three surfaces
• On or Offset surface
• Point at intersection of curve and surface
• Center of curve or surface
• Point at intersection of two curves
• Point on curve
When there are multiple intersections, the point location of general datum point depends on the following:
• Point at intersection of edge and edge—t value of point on second edge
• Point at intersection of edge and plane—t value of point on edge
• Point at intersection of curve and plane—t value of point on curve
• Point at intersection of two curves—t value of point on second curve
• Point at intersection of curve and surface—t value of point on curve
• Point at intersection of curve and axis—t value of point on curve
The following figure shows the element tree of a general datum point.
