CS_DEF

ID_NAME	= `<name_of_coord_system>`	Name of the coordinate system
CS_TYPE	= RECTANGULAR = CYLINDRICAL = SPHERICAL	Type of new coordinate system
DEF_TYPE	= LOCAL	`LOCAL` definition refers to an existing coordinate system
	= NODE	Definition using three nodes

Items for DEF_TYPE = LOCAL

CS_REF	= `<name_of_coord_system>`	Existing reference coordinate system
ORIGIN_123	= `<coord_1>, <coord_2>, <coord_3>`	Coordinate values of the origin
ROTATION_321	= `<rot_3>, <rot_2>, <rot_1>`	Rotations that should be superimposed on the reference coordinate system

Items for DEF_TYPE = NODE

CS_AXIS	Specifies the axis and the plane defined by the three nodes.
	= X_XY	X-axis and the X-Y plane are defined by the three nodes.
	= X_XZ	X-axis and X-Z plane are defined by the nodes.
	= Z_XZ	Z-axis and X-Z plane are defined by the nodes.
NODE_ORIGIN	= `<node_id_of_origin>`	ID of node which defines the origin
NODE_AXIS	= `<node_id_on_axis>`	ID of the node on the axis
NODE_PLANE	= `<node_id_on_plane>`	ID of the node on the given plane and the second axis

Remark

The rotation angle in the command ROTATION_321 is in degrees. The single rotations are carried out around the axis of the global Cartesian coordinate system.

Examples

The following command defines a cylindrical coordinate system with origin (10,20,0) with respect to the global Cartesian coordinate system CS_0. The polar axis and longitudinal axis are obtained by rotating the x-axis and z-axis of CS_0 respectively by 45° around the z-axis and by 15° around the y-axis of CS_0.

CS_DEF
 ID_NAME = my_cs_01
 CS_TYPE = CYLINDRICAL
 DEF_TYPE = LOCAL
 CS_REF = cs_0
 ORIGIN_123 = 10.0, 20.0, 30.0
 ROTATION_321 = 45.0, 15.0, 0.0
END_

The following command defines a rectangular (Cartesian) coordinate system with origin through the node with ID number 10. The x-axis is defined by the nodes 10 and 100. Node 101 defines a point in the x-y plane.

CS_DEF
 ID_NAME = my_cs_02
 CS_TYPE = RECTANGULAR
 DEF_TYPE = NODE
 CS_AXIS = X_XY
 NODE_ORIGIN = 10
 NODE_AXIS = 100
 NODE_PLANE = 101
END_