Repeatability

When a pipe is detailed which needs splitting over more than one sheet, Isodraft automatically generates split points. By default this data is not stored, so if the design is altered and the pipe detailed again, the split points may be in different places.

If you use the REPEATABILITY command, sheet split points are written back into the Design database. This means that when the pipe is detailed again it will be split in the same places. You can reposition the split points if you wish. Repeatability allows you to re-plot single sheets when you have made changes to your design which only affect those sheets. Repeatability is not available for system isometrics or equipment trims. The split points are not set by Isodraft; an inter-DB connection macro is generated to set them in Design.

Restrictions on Repeatability

• Split ATTAs will not be automatically created if some already exist in the pipe.

• Re-ordering branches will destroy the integrity of the repeatability data.

For a major redesign, you should remove repeatability data from the database and regenerate it.

If repeatability has been set, individual spools and sheets can be re-plotted using the DETAIL command. Individual sheets and spools can be entered into the Add and Remove lists using the ADD and REMOVE commands.