Coordinate System

・Change the current coordinate system, Define by 3 points, Define by 2 lines, Move the point of origin, Move parallel, Initialize

.・Only
one coordinate system can be defined in each node.

・The
coordinate system added to the top node is equivalent to a whole coordinate
system.

・The commands related to a coordinate system and coordinate axes, such as create demensions and create sections, are handled in the current coordinate system.

・The coordinate axes which show the posture of a current coordinate system
are displayed.

・It also has the function which returns to the initial coordinate system
which the node holds.

・2D port origin point is reffered the origin point of current coordinate system
which is created the sections or views.