Backing Sheet Controls

The backing sheet referenced by an ADP sheet can contain two sets of information to allow the ADP annotation and view creation to be more automated. The following sections describe the types of additional information that can be generated under a BACK for use by the ADP system.

The general ADP application makes use of special information stored on the backing sheet in the form of Notes, which specify where certain types of annotation generated by ADP will be located on the sheet. If this information is not present on the backing sheet the application will either prompt the user for input or not allow the user access to the associated automatic annotation options.

All the Notes have visibility set to false.

Reference Drawings

This is the area on the Sheet that is available for the user to insert a list of Reference Drawings. It is defined under a Note named back_sheet_name/REFDRWGS. The Note contains TEXPs that are used to represent reference drawings associated with a sheet. Each TEXP should be positioned and have attributes set as required. The TEXP is copied from the backing sheet onto the user’s sheet during reference drawing definition.

The Note should also contain a rectangle whose area represents the available area taken by the reference drawing texts, which is used during zoom operations.

Sheet Limits

This is the area available on the backing sheet where the View will be created. It is defined under a Note named back_sheet_name/LIMITS. The Note should contain just one RECT element whose limits correspond to the available free space on the BACK. This LVIS of the NOTE should be set to FALSE in order to inhibit the display of the rectangle on the user’s sheet.

Schedules

This is the area on the Sheet that will be used to display Schedules. The origin of the schedule table and its maximum extent is defined on the backing sheet. Only one origin and extent definition can be added to a BACK and this is initially used by ALL schedules that are created by the user. The user always has the option to re‑define the two attributes for any schedule created. The ORIGIN and EXTENT information gives the application a starting point for any schedules.

To create the ORIGIN and EXTENT positions on the backing sheet create a NOTE under the required BACK with the name

back_sheet_name/SCHEDULE.

This note should own two MRKP elements named:

back_sheet_name/SCHEDULE/ORIGIN

and

back_sheet_name/SCHEDULE/EXTENT

SCHEDULE/ORIGIN should be positioned where the origin of the schedule will be positioned and from where the schedule will be built.

SCHEDULE/EXTENT should be positioned at a point past which the schedule should not be built. All subsequent schedule entries that would exceed this extent position are hidden and the user is warned of the schedule overflow.

Keyplan

This is the area on the Sheet that will be used to display a Keyplan. It is defined under a Note named back_sheet_name/KEYPLAN. This note should contain one MRKP element to determine the position for the Sheet’s keyplan OLAY. The MRKP must be named:

back_sheet_name/KEYPLAN/ORIGIN.

The Note should also contain a rectangle whose area represents the available area taken by the reference drawing texts, which is used during zoom operations.

Title

This is the area on the Sheet that will be used to display the title block of the backing sheet. It is defined under a Note named back_sheet_name/TITLE. The Note can contain 2D primitives to define the geometry of the Title Block. It should have a Rectangle (the first primitive in the list, or first Rectangle in the list) with NLSTYLE set to OFF, whose area will define the area occupied by the title block. This is used during zoom operations.

Summary

The following table summarizes the special Notes that can exist on the backing sheets, and more details are given below.

You can refer to the standard A0 backing sheet, /DRA/MAS/BACKS/METRIC/A0, in the Department Draft_Libraries, as an example.