Curve Calculator

Use it!

Opens the Curve Calculator dialog box, which is used to place any conceivable planar curve as a NURBS, based on a mathematical formula, in either of the following ways:

• From a library of pre-defined curves.

• By defining a custom formula.

Trigonometric, hyperbolic, exponential, logarithmic, and power functions can be used to create sinusoids, spirals, catenaries, involutes, evolutes, and so on. For the creation procedures, see Creating any conceivable curve.

Curve Calculator dialog box

To place a parametric curve

1. With a curve definition loaded, from the Tools menu in the Curve Calculator dialog box, choose Place Parametric Curve.


2. Enter a data point to define the curve's origin.

To place a parametric line string

1. With a curve definition loaded, from the Tools menu in the Curve Calculator dialog box, choose Place Parametric Line String.


2. Enter a data point to define the line string's origin.

To construct a curve defined by formulas and another curve

1. With a curve definition loaded, from the Tools menu in the Curve Calculator dialog box, choose Construct Parametric Curve.


2. Identify the curve in the design.


3. Accept the new curve.

To construct a line string defined by formulas and another curve

1. With a curve definition loaded, from the Tools menu in the Curve Calculator dialog box, choose Construct Parametric Line String.


2. Identify the existing curve.


3. Accept the line string.

Key-in: MDL LOAD CURVCALC