next up previous contents index
Next: GEOMETRY POINT Control Up: Primary Command GEOMETRY Previous: GEOMETRY LINE STRAIGHT [lnam] pnam1 pnam2

GEOMETRY MOVE part trkey [definition]
or: ... ONTO shape [direction]
or: ... X/Y/Z coord [refcs] [csname]

          

This command can work in three ways:

1.
The command is used to move the points defining existing parts by a transformation. The transformation can be separately defined or it can be defined as part of this command.
2.
The command is used to move the points defining existing parts onto a FEMGEN shape.
3.
The command is used to give the points defining existing parts a specific coordinate value in an axis system.

Selection of the geometry to be moved is either by keyboard or cursor.


part = name of a point, line, surface, body, or set that will be moved by transforming
it according to `trkey' (see below).
shape = name of a previously defined FEMGEN shape.
direction = Direction in which points are to be moved onto the shape, can be NORMAL to
the shape (the default), normal to the SCREEN or defined by the x, y, z
components of a direction vector.
coord = a coordinate value
refcs = reference coordinate system, either GLOBAL or LOCAL. If LOCAL is
used then the name of the coordinate system must be given.
csname = name of a previously defined local rectangular coordinate system.


trkey definition
TRANSLATE Two point translation definition OR
Three offset distances with optional coordinate system
ROTATE Three or four point rotation definition OR
Two points and angle of rotation
MIRROR Two point mirror definition
SCALE Two point scale definition with a scaling factor plus an
optional scaling factor
transform name Name of transform previously defined with command
CONSTRUCT TRANSFORM

The command transforms all points associated with `part', and hence moves any lines, surfaces, or bodies defined using those points. All parts that will be affected by the move will be drawn in red and the user is asked for confirmation before the parts are moved. UTILITY SETUP CONFIRM can be used to inhibit the need for confirmation, althougn this is not recommended.

The first form of the command is useful for assembling different components of a structure which have been developed separately. In this case, the command MESHING MERGE would be needed to remove discontinuities at the interfaces between components.

For a detailed description of the definitions of the four transforms the user is referred to the command CONSTRUCT TRANSFORM.

Although translations may be performed using cylindrical or spherical coordinate systems it is recommended that only rectangular systems are used.

The second form of the command is useful for ensuring that the points defining the given geometry lie on a shape. It can also be useful for projecting points onto a shape as an aid to creating intersection geometry. Note that all the points used in the definition of the 'part', including arc centres, will be moved.

The third form is used to ensure that points have the same coordinate.

Return Level: GEOMETRY MOVE

Notes:

1.
Moving points with dependency
Any point that has a dependency associated with it will have that dependency removed when moved with this command.

Examples:

1.
GEOMETRY MOVE S1 ROT1

Move all points and lines associated with surface S1 using transformation ROT1.

2.
GEOMETRY MOVE SET1 TR1

Move all the points defining the lines, surfaces and bodies within set SET1 using transformation TR1.

3.
GEOMETRY MOVE SET1 ROTATE PAXIS1 PAXIS2 PSTART P43

Rotate all points, lines, surfaces and bodies in SET1 about an axis through points PAXIS1 and PAXIS2 by an angle defined by point PSTART to point P43.

4.
GEOMETRY MOVE SET1 TRANSLATE 10 0 12 GLOBAL

Translate all points, lines, surfaces and bodies in SET1 by x = 10, y = 0, z = 12 in the global current coordinate system, regardless of the currently active coordinate system.

5.
GEOMETRY MOVE SET1 TRANSLATE 1.05 2.392 0 RECT1

Translate all points, lines, surfaces and bodies in SET1 by x = 1.05, y = 2.392, z = 0 in the previously defined coordinate system RECT1.

6.
GEOMETRY MOVE SIDE ONTO TUBE

Translate all the points defining parts in the set SIDE to lie on the shape called TUBE. The points are moved in a direction normal to the shape.

7.
GEOMETRY MOVE SIDE ONTO TUBE 0 1 0

Translate all the points defining parts in the set SIDE in the global Y direction to lie on the shape called TUBE.

8.
GEOMETRY MOVE S10 Y 10.5

Move all the points defining S10 to have a global Y coordinate of 10.5

9.
GEOMETRY MOVE LUG Z 25.3 LOCAL1

Move all the points defining LUG to have a Z coordinate of 25.3 in the local system LOCAL1.

See also the following commands

'CONSTRUCT TRANSFORM'.
'MESHING MERGE'
'UTILITY TABULATE GEOMETRY TRANSFORM'


next up previous contents index
Next: GEOMETRY POINT Control Up: Primary Command GEOMETRY Previous: GEOMETRY LINE STRAIGHT [lnam] pnam1 pnam2

Femsys Limited
1st October 1999