CORD2R

Bulk Data Entry

CORD2R – Rectangular Coordinate System Definition, Form 2

Description

Defines a rectangular coordinate system by reference to the coordinates of three points. The first point defines the origin. The second defines the direction of the z-axis. The third point defines a vector, which, with the z-axis, defines the x-z plane.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
CORD2R	CID		A1	A2	A3	B1	B2	B3
	C1	C2	C3

Example

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
CORD2R	3		-2.9	1.0	0.0	3.6	0.0	1.0
	5.2	1.0	-2.9

Field

Contents

CID

Unique coordinate system identification number.

(Integer > 0)

A1,A2,A3
B1,B2,B3
C1,C2,C3

Coordinates of three points in the basic coordinate system.

(Real)

$image\bmp00016.gif$

CORD2R definition.

Comments

Continuation must be present.
The three points (A1, A2, A3), (B1, B2, B3), (C1, C2, C3) must be unique and noncollinear. Noncollinearity is checked by the geometry processor.
Coordinate system identification numbers on all CORD1R, CORD1C, CORD1S, CORD2R, CORD2C, and CORD2S entries must all be unique.
The location of a grid point (P in the sketch) in this coordinate system is given by
(X, Y, Z).
The displacement coordinate directions at P are shown by ( $image\uxuyuz.gif$ ).

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