## Curve Maker

### Curve Maker draws the following spirals and curves in SketchUp®:

• Archimedes spiral
• Bernoulli (logarithmic or equiangular) spiral
• Catenary
• Cornu spline
• Cotes spiral
• Euler (clothoide or Cornu) spiral
• Fermat spiral
• Golden spiral
• Helix
• Hyperbolic cotangent spiral
• Hyperbolic spiral
• Hyperbolic tangent spiral
• Ionic Volute
• Lituus (shepherd's crook or bishop's crook)
• Parabola
• Sine and cosine
• Superellipses

Curve Maker provides three ways to draw a curve:

• interactively,
• by specifying the dimensions a curve should have, or
• by specifying values for parameters in mathematical equations.  (You do not need to know any mathematical formulas.)

### Drawing Curves Interactively

The following brief videos demonstrate some of the interactive curve drawing capabilities of Curve Maker:

Another video on interactive drawing and editing is available here.

### Specifying Dimensions - An Example

It takes just two steps to draw a sine wave like this one:

#### Step 1 - Choose the curve type

From the list of available curves, choose the one you want to draw. In this case, a sine wave is selected. #### Step 2 - Specify the dimensions

The dialog box below calls for drawing a sine wave (from 1/4 cycle to 1 3/4 cycles). The curve to be drawn should lie within a rectangle that is 2" high by 6" wide.