Wall Arcs
Wall Arcs
There are several methods for creating arcs, each with several options:
By three points
By starting point, end point (direction point) and angle
By starting point, end point (direction point) and radius
By starting point, center point and angle (free only)
In the first three methods, the arc may be a free arc, an arc within an existing wall or an arc between two aligned walls. When using the center point and angle option only free arcs can be created. When arcs are created within or between walls the connection between all layers of the arc and wall are resolved by the system.
A Note about Concave and Convex Arc Surfaces
Although wall arcs are multi-layer entities, you must define the points of the arc on only one of the external wall layers. Make sure that you locate the first and last points exactly on the inner or outer layer of the straight wall. You must define the points by snapping with the mouse to ensure precision. You can use help lines to help you locate the points precisely.
When creating the arc you must specify that your point defines either the concave or convex surface of the arc. Think of the convex surface of the wall arc as the external surface or layer, and the concave surface as the internal side of the arc.
NOTE ARC+ uses the terms concave and convex, since the distinction between the inside and outside of walls in a typical drawing may be blurred.
HINT To recreate a deleted wall arc that was originally created within a straight wall, use the arc between two walls option To restore a straight wall after deleting an arc delete one of the two new walls and then use the corner command with the adjacent wall, or use the trim wall (\wtrim) command to extend one wall to the other.
IMPORTANT Snap close to the outside of the wall entity to avoid pointing to one of the inside wall layers.
NOTE To connect two non-aligned walls with an arc, use the Creating a fillet (\fillet) command.
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