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AutoCAD 2012 & AutoCAD LT 2012 Bible

The most comprehensive AutoCAD book around!

AutoCAD 2012 Bible

Create a polyline from the boundary of existing objects

Sometimes you need to create a closed polyline from several existing objects that don’t meet end to end.For example, let’s say that you want to draw a polyline from the inside border created by the rectangle and two circles.

The BOUNDARY command is a very easy way to do this.

Start the BOUNDARY command to open the [...]

Create a circle with a width

There are various reasons that you might need to create a circular object with a specific width, such as matching cable widths, or showing cross sections. I’ve come up with 4 ways to go about this. The right one for you will depend on your needs.

Fit a polygon

An excellent method uses the POLYGON command [...]

Control hatch origin

When you place a hatch inside a closed area, by default, the pattern starts at the origin of the drawing, which is usually 0,0 of the current User Coordinate System (UCS). Since your closed area probably doesn’t start at 0,0, the hatched area starts somewhere in the middle of the pattern.

For simple hatches, such as [...]