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Drawing Curves and Solid Fills

So farin this book, you’ve been using basic lines, arcs, and circles to create your drawings. Now it’s time to add polylines and spline curves to your repertoire. Polylines offer many options for creating forms, including solid fills. Spline curves...

Smoothing Polylines

There are many ways to create a curve in AutoCAD. If you don’t need the representation of a curve to be exactly accurate, you can use a polyline curve. In the following exercise, you will draw a polyline curve to represent a contour on a topographic  map. 1....

Creating a Polyline Spline Curve

The Pedit command’s Spline option (named after the spline tool used in manual drafting) offers you a way to draw smoother and more controllable curves than those produced by the Fit option. A polyline spline does not pass through the vertex points as a fitted...

Using True Spline Curves

So far, you’ve been working with polylines to generate spline curves. The advantage to using polylines for curves is that they can be enhanced in other ways. You can modify their width, for instance, or join several curves together. But at times you will need a...

Marking Divisions on Curves

Perhaps one of the most difficult things to do in manual drafting is to mark regular intervals on a curve. AutoCAD offers the Divide and Measure commands to help you perform this task with speed and accuracy. Dividing Objects into Segments of Equal Length The Divide...

Sketching with AutoCAD

No discussion of polylines would be complete without mentioning the Sketch command. Though AutoCAD isn’t a sketch program, you can draw “freehand” using the Sketch command. With Sketch, you can rough in ideas in a free-form way.,and later overlay a...