progeCAD Professional manual The low-cost alternative to AutoCAD

Index



Do you want to try progeCAD Professional?
Download the trial: you can try the product, without any limit, for 30 days!

A manual page a day... Click here to see the manual table of contents.

Creating simple entities

Drawing arcs

An arc is a portion of a circle. The default method for drawing an arc is to specify three points--the start point, a second point, and the endpoint. You can draw arcs using any of the following methods:

Three points on an arc (

).
  • Start point-center-endpoint (
  • ), or Start point-endpoint-center ( ), or Center-start point-endpoint ( ).
  • Start point-center-included angle (
  • ), or Start point-included angle-center ( ), or Center-start point-included angle ( ).
  • Start point-center-chord length (
  • ), or Center-start point-chord length ( ).
  • Start point-endpoint-radius (
  • ), or Start point-radius-endpoint ( ).
  • Start point-endpoint-included angle (
  • ), or Start point-included angle-endpoint ( ).
  • Start point-endpoint-starting direction (
  • ), or Start point-starting direction-endpoint ( ).
  • Start point-radius-angle (
  • ).
As a tangent continuation of the previous arc or line ( ).
To draw an arc by specifying three points
  1. Do one of the following:
  2. Choose Draw > Arc > 3 Points.
  3. On the Draw toolbar, click the 3-Point Arc tool (
  4. ).
  • Type arc and then press Enter.
  • Specify the start point.
  • Specify a second point.