APPENDIX E

CATAPT summary sheet

"APTFILE":

User can open a "NEW" file or "APPEND" to an existing one. Current directory is assumed unless full path name is given. If full path name is specified, it must be preceded by an extra slash ("/") so that CATIA will know that it is not an IUA macro. (i.e.//u/joe/spar.inp)

Output generated can be viewed under the "LIST FIL" option. Defaults are set under the "STANDARD" option. APT types supported are 360 CAM-I, DAC/ARELEM, SPERRY 1100, NCCS/NCL and 370 APT.

"GEOMETRY "

+ "ELEMENT": This option generates statements for APT 360 type geometry. Here APT definitions for POINT, LINE, PLANE, MATRIX (axis and transformations), CIRCLE, QUADRIC (ellipse), TABCYL, SPHERE, CONE, CYLNDR, TORUS, and RLDSRF can be generated. If a CATIA face is selected under CAM-I, DAC or SPERRY modes the face is broken down into its surface, bounding curves and ruled surfaces generated from those bounding curves. This option can be used in two modes, "LABL ON" and "LABL OFF". This labels the geometry on the CATIA screen with the APT identifiers. Labels, if applied, can be positioned, deleted or modified under the CATIA "TEXT" function.

+ "SET": same as above but entire set named is converted. Could result in unbearably slow response time.

+ "RLDSRF": Create APT statement RLDSRF/ TCA, TCB. User should have previously defined the needed geometry under the "ELEMENT" option. The CATIA surface need not exist.

+ "SCURV" / "SSURF": Support the Sculptured Surface modules of APT for the system defined under the "STANDARD" option. The "STANDARD" option also allows for control over the definitions of the surface. The canonical form of the surface (i.e. sphere, cone...) is ignored under this option and the surface is transferred as a sculptured surface.

+ "VECTOR": Select two CATIA points to define a vector.

+ "PATERN": All points in the set name given will be used to create a PATERN/RANDOM statement.

+ "IDENTIFY": Allows the user to interrogate an element for its APT identifier based on the mode selected under the "STANDARD" option.

"AUX":

Allows the user to label CATIA geometry without generating statements in the output file, create APT statements and create driving instructions by selecting geometry from the screen. (geometry should have been previously defined)