Next: GEOMETRY LINE SPLINE [lnam] pnam1 pnam2 Up: GEOMETRY LINE Control Previous: GEOMETRY LINE PARALLEL [new_l] old_l dirn
This command will make a new line that is perpendicular to an existing line. It only works with straight lines.
|new_l||=||name of the line to be created.|
|old_l||=||name of an existing line.|
|start_p||=||name of an existing point that the new line will start from. It does not have to|
|be one of the points defining `old_l'.|
|dirn||=||Direction for the perpendicular line, defined using either a guide point or by|
|specifying a general plane. When a guide point is given the new line is created|
|perpendicular to the old line and in the plane containing the guide point and the|
|old line. If, however, XY, YZ or ZX is used for `direction' then the new line|
|will lie in a plane parallel to the specified plane in either the current coordinate|
|system or the coordinate system specified by `csname'.|
|length||=||The length of the new line. If `dirn' above has been specified using a named|
|plane, the length is the perpendicular distance in that plane. Otherwise if|
|the direction has been specified using a guide point, the distance is the perpendicular|
|distance from the old line towards the guide point. Finally, if a guide point|
|is used but no distance is given then the length is the perpendicular distance|
|from the old line to the guide point.|
|refcs||=||Reference coordinate system (either GLOBAL or LOCAL) for interpretation|
|of the direction specified above. If specified this will override the currently|
|active coordinate system. If `LOCAL' is specified then the name of an existing|
|local coordinate system must be given.|
|csname||=||name of an existing local coordinate system previously defined using|
|`CONSTRUCT COORDSYS'. It can only be a rectangular coordinate system.|
|div||=||the number of divisions to be created along the line. The default is set|
|with MESHING DIVISIONS DEFAULT; the initial value is 4.|
If a coordinate system direction is specified then this will be interpreted in the currently active coordinate system unless the user gives `GLOBAL' or `LOCAL' with an existing coordinate system name. Local coordinate systems can be defined using the command CONSTRUCT COORDSYS.
Will create a line (named automatically) perpendicular to line L10, starting at P45 in a direction towards point P10. The length of the line will be 23.
Will create a new line called LPERP23 perpendicular to L23, starting at P35, the new line will be 1.293 units long and be in a XY parallel to the current coordinate system.
Will create a line perpendicular to L11 starting at P43. The new line will line in a plane parallel to the ZX plane of the coordinate system RECT11; the line will be 3.95 units long and have five divisions.