Expanding a Polygon into a Solid

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Expanding a Polygon into a Solid

Creates a 3D solid from a polygon.

\p3d

Specify the option to expand a polygon into a solid:

Expand the polygon into a prism parallel to the z axis (height)

Expand it into an oblique prism by two points

Dynamically

Parallel to the Z Axis (By Height)

Enter the height of the polygon on the z axis.

Indicate the polygon to expand or press Enter to expand the current polygon. The polygon created is positive.

$image\ebx_1693072387.gif$ NOTE If you want a negative shape to be created from this operation, use \posne command after its creation.

The 3D solid prism is created by the original 2D polygon being copied to the new location. Each point (vertices) of the two base polygons is linked by the connecting edges.

Continue indicating further polygons to be expanded by the same height or press Enter to set another height (or two points)

$image\ebx_1899903069.gif$ $image\ebx_-1550415719.gif$

Oblique to the Z Axis (By Two Relative Points)

Specify two points on or independent of the entity. Indicate the polygon to expand or press Enter to expand the current polygon. State whether you want a positive or negative polygon.

The 3D solid prism is formed by the original 2D polygon being copied to the new location. Each point of the two base polygons is linked by connecting edges.

Continue indicating further polygons to be expanded by the same displacement or press Enter to set another two points (or height).

$image\ebx_1899903069.gif$ $image\ebx_266498920.gif$

Dynamically

If you are not in a view that is legal for dynamic extrusion (Axonometric or elevation), ARC+ prompts you to change the view as you proceed.

Move the cursor through the polygon to extrude. The "flexible lines" follow the cursor movement to a desired height or width. You can either snap to any point or indicate a specific value by typing "dl" followed by width/ height. (You are required to place your cursor in the desired direction)

$image\ebx_-726553584.gif$ HINT If you find the dynamic snap disturbing while extruding a polygon dynamically, you can deactivate it temporarily by keeping the CTRL button pressed at the time of extrusion.

The 3D solid prism is created by copying original 2D polygon to the new location. Each point (vertices) of the two base polygons is linked by the connecting edges.

Continue indicating further polygons to be expanded by the same height or press Enter to set another height

$image\ebx_-726553584.gif$ HINTS You may use the newly created polygon at the top of the prism as the base polygon to create additional expansions.

You can update the height or shape of a prism, by using the Manipulating entities by dragging (\mdrag) or from point to point (\move) commands (see Editing & Manipulation).

$image\ebx_1693072387.gif$ NOTE This command operates only on a closed (loop) polygon. Make sure that a new polygon is closed by pressing Enter for the last segment of the polygon or use the Closing a polygon (\endp) command. If the polygon is open, you may close it using the Query polygon (\qpoly) command.