The points of an area shape are stored counterclockwise although the ArcSDE software can return points in either direction. If you generate an area shape whose coordiantes are clockwise, the ArcSDE software changed the rotation to ensure that the coordinate list follows a counterclockwise direction.

The pattern matrix contains the acceptable values for each of the intersection matrix cells. The possible pattern values are

• T : An intersection must exist; dim = 0, 1, or 2.
• F : An intersection must not exist; dim = -1
• * : It does not matter if an intersection exists or not; dim = -1, 0, 1, or 2.
• 0 : An intersection must exist and its maximum dimension must be 0; dim = 0.
• 1 : An intersection must exist and its maximum dimension must be 0; dim = 1.
• 2 : An intersection must exist and its maximum dimension must be 0; dim = 2.