Sketch 2D

Purpose:

To create and modify an RSO by the use of 2D drafting tools or by picking panels.

Prerequisites:

The envelope to be used must exist as an object in the data base. The function operates on two of the drafting views; the Symbolic Planar View and on Backdrop Views. However, panel selection (using the Panel function) operates on any type of view.

Instructions:

The function operates on two of the drafting views; the Symbolic Planar View and on Backdrop Views.

When the function is activated the following dialog window is presented:

The functions Draw allows the user to sketch a polyline (possibly aided by a grid definition). When defined, an RSO is created limited by the closest surface or RSO at the line end points.

The function Select allows the user to select already defined geometry in a view. The selected geometry is used for the RSO creation in the same way as when using function Draw.

The function Trim allows the user to trim an RSO. An RSO (and the end to be trimmed) is selected first, and secondly a surface or another RSO to be used as trimming object.

The function Panel allows the user to pick panels. If picked panels are planar and not located using coordinates, then an RSO is created in the plane of the panel. Surface and RSO limits used in the panel are extracted and applied on the RSO. Finally, the picked panel is updated with location equal to the created RSO.

The drop down list contains envelopes that can be selected and applied on the created RSOs.

The generated RSOs are automatically named using the symbolic coordinate of the plane coordinate. If no symbolic translation of the coordinate can be made, then a prefix X, Y or Z is added. Any minus (-) character is exchanged with the character N and any plus (+) character is exchanged with character P. Finally and index postfix can be added in case more than one RSO is added in the same plane. The automatic name can be changed by using one of the options (see below) or by renaming it using the function RSO > Rename.

The type of the RSO is always set to General Inner Structure. This can be changed in functions Properties or Edit Shape.

Options:

When activating the Grid, a grid distance in U and V direction must be given. The grid is considered when using the Draw function

When Mirror Copy is activated, the RSO definition is mirrored where possible. Typically, a cambered deck only needs to be defined on one side of the centre line.

When Verify Name and Limits is activated, the automatically generated name and the selected limits of the RSO to be created is presented and made possible to change.

Result:

The RSO is created or modified.