Command Description
The 3D Object From Polygon command enables you to select one or many closed linestrings to apply a depth and/or polygon offset against and create 3d solid objects. As an alternative to a depth, you can also choose and elevation or a surface to project the polygon vertically too.
- Click in the Polygons selection field and then in a graphic view select the closed linestring. Click Options button for additional selection options.
- Pick a mode from the list.
- “Depth” will apply a value from the polygon to create the solid. A positive number applies in a downward direction and a negative number will be applied in an upward direction.
- “Elevation” will project the polygon shape up or down to an entered elevation.
- “Surface” will project the polygon shape up or down to intersect with the nominated surface.
- A vertical Offset can be applied to the original polygon. A positive number applies in an upward direction and a negative number applies in a downward direction.
- Enter a BIM Group name for the new object. This will be saved in the project explorer under the BIM Data.
- Enter a Name for the new 3d object.
- Select a Color for the new 3d object.
- Select or create a Layer for the new 3d object.
- The Chord tolerances are applied when using linestrings that contain curves.
- Horizontal – This applies to horizontal curves.
- Vertical – This applies to vertical curves.
- Do either of the following:
- Click Apply to create the 3d solid and keep the 3D Objects From Polygon command pane open.
- Click Close to end and close the 3D Objects From Polygon command pane.
Tips: Sometimes the 3d object created is not formed correctly when projecting to a surface. This can often be fixed by one of the following methods.
- If using an imported surface, try recreating the surface in TBC using the original surface as the member.
- Use the Line Node Clean-up tool to make sure the polygon string is clean.
Examples: