Subject: Drawing an elevation line



An elevation line can be drawn in any three-dimensional drawing to create a two-dimensional projection view of the drawing.

You can modify existing elevation lines and therefore their related projection views. You can also modify the elevation symbol that marks the elevation line.

To draw an elevation line

   1   Do one of the following to choose Elevation Line ():

   On the ribbon, choose Draw > Elevation Line (in AEC Entities).

   On the menu, choose Draw > AEC Entities > Elevation Line.

   Type elevationline and then press Enter.

   2   Specify the start point of the elevation line.

   3   Specify the end point of the elevation line.

If you want to include all entities in the 2D projection view, make sure the start and end points are beyond the start and end of the model.

   4   To turn on the visibility of hidden lines, choose No. To keep hidden lines invisi­ble, choose Yes.

   5   Specify the insertion point of the 2D projection view.

To add a new 2D projection from an existing elevation line

   1   Type elevationlinegenerate and then press Enter.

   2   Select the elevation line, then press Enter.

   3   Specify an insertion point for the new 2D projection view.

Use a shortcut.
Right-click the elevation line you want to generate a new projection for, then choose Generate 2D Elevation.

To reverse the direction of an existing elevation line

   1   Type elevationlinereverse and then press Enter.

   2   Select the elevation line, then press Enter.

   3   If automatic updating is turned off, right-click the 2D projection view, then choose Refresh.

Use a shortcut.
Right-click the elevation line you want to reverse, then choose Reverse.

To modify the position of an existing elevation line

   1   Select the elevation line.

   2   Move its start point, end point, or length.

If Use Model Extents for Height is set to Yes in the Properties pane, the elevation line height and lower extension are matched automatically. If set to No, you can change the height and lower extension separately.

   3   If automatic updating is turned off, right-click the 2D projection view, then choose Refresh.

To modify the properties of an elevation line symbol

   1   Select the symbol of an elevation line.

   2   In the Properties pane, select new properties, including the label text. Note that the symbol is annotative and can be scaled.

Use the AECAUTOUPDATE system variable to control automatic updating.
If AECAUTOUPDATE is set to 1, two-dimensional projection views update automat­ically after a section line or elevation line changes. If set to 0, you need to manually refresh projection views after changes.

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