Spooling

DRAW Administrator Guide

Isometric Automatic Drawing Production : Concepts : Spooling

Produces Fabrication and Erection isometrics, which means that the drawing is designed to provide fabrication information about spools.

A branch is broken down into a smaller set of easily managed components called spools. These spools are fabricated individually and later connected together to form the branch in situ.

IsoADP splits the HVAC and CWAY Design Branches into Fabrication Spools by volume or by split point.

Sets a limits box to determine the contents of each sheet. The drawlist of any sheet contains just the components of a BRAN or CTMTRL that are needed to fill the limits box. Any further components are added to the next sheet.

If one BRAN or CTMTRL element is physically very large and a drawing is produced of the complete element, the scale is very small compared to a smaller branch resulting in a very complex drawing that is too small to read satisfactorily.

To avoid this potential problem, the BRAN or CTMTRL element must be broken down into smaller pieces, so that they fit into a predefined box. As a result, the majority of drawings are similar in appearance even if not exactly equal in scale.

You are able to determine the size of the limits boxes used to split down the HVAC branches and CWAY material. These limits boxes determine the levels of complexity the user is presented with.

The disadvantage with the limits box is that the content of each drawing cannot be preserved and so any changes in the BRAN or CTMTRL element can affect all existing drawings.

Spooling by Split Point

Sets an attribute flag in the 3D model to mark the end of the spool. By choosing how the branch is split into spools from within the 3D model, the content of each drawing can be controlled. As these split points are preserved, not all existing drawings necessarily change during an update if a BRAN or CTMTRL element is modified. The way in which the design points are set depends on the design element type.

The Cableway element CTMTRL can own any of the component types CTSTRA, CTRISE, CTBEND, CTTEE, CTCROS and CTREDU. Each of these components has an attribute that specifies if the spool is split at this component (this component is the last in the current spool).

To set the spool splitting, use the syntax:


SSPLIT TRUE	The component is the last in the current spool.
SSPLIT FALSE	The component is a member of the current spool.

at CTMTRL members

The size and connections of HVAC components are controlled by its design parameters. The spool split point is a design parameter and to set it use the syntax:


DESP N37 TRUE	The component is the last in the current spool
DESP N37 FALSE	The component is a member of the current spool

at BRAN members

You can query the design parameter value with the use of a property created for that purpose. Use the syntax;


Q PROP SPLI

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