Specifying Pipe End Conditions for use by ISODRAFT

Catalogues and Specifications Reference Manual

Manipulating the Catalogue Database using PARAGON : Constructing 3D Pointsets : Specifying Pipe End Conditions for use by ISODRAFT

The symbol used by ISODRAFT to represent a particular piping component on an isometric drawing is determined by the symbol key (SKEY attribute setting) for that component. (Refer to Symbol Keys for a full explanation of this concept.)

By default, each SKEY has associated with it a standard end condition (showing the pipe connection type) which applies to each of the component’s connection points. The end condition for any individual connection point may be modified, if required, by setting the PSKEY attribute of the corresponding P-point to a AVEVA E3D™ word chosen from the following:


BW	Butt Weld
CP	Compression
FL	Flange
SC	Screwed
SW	Socket Weld
PL	Plain

The effect of setting PSKEY to one of these words for a P-point of type PTAXI, PTCAR or PTMIX is that ISODRAFT will then add the symbolic representation of the specified end condition to the symbol derived from the corresponding SKEY when it plots an isometric drawing showing the component. The default setting for PSKEY is always NULL, which means that ISODRAFT plots only the standard end conditions for the symbol.

Note that the effect is additive, so that ISODRAFT superimposes any user-specified end condition (derived from a non-Null PSKEY setting) on top of any end condition which forms part of the standard symbol associated with the SKEY. The use of the PSKEY facility is, therefore, applicable mainly to components which do not have other end conditions already defined, particularly those associated with user-defined symbols (as detailed in Symbol Keys).