Name
Specify the unique name for the analytical curve.
X(t), Y(t), Z(t)
Specify a valid function dependent on the parameter t for the defining the coordinates of the analytical curve in global coordinates. Please note that these entries only appear when the global coordinate system is currently active.
U(t), V(t), W(t)
Specify a valid function dependent on the parameter t for defining the coordinates of the analytical curve in local coordinates. Please note that these entries only appear when a local coordinate system is currently active.
Min(t), Max(t)
Specify a valid parameter range for the parameter t.
Curve
Select the curve to which this analytical curve item will be assigned from the list of previously defined curves or enter a new name.
OK
Press this button to finally create the circle.
Preview
Press this button to create a preview image of the analytical curve. This option is very useful to check the settings before you actually create the analytical curve.
Cancel
Closes this dialog box without performing any further action.
Help
Shows this help text.
Example
A parabolic curve
X: t
Y: t^2 - 4
Z: 0
Range: -3 to 3
Note: An analytical curve can only be created when its first derivative exists in the given parameter range.
Example
Analytical curve creation fails for the following definition because the first derivative for sqr(t) at t=0 is not defined:
X: t
Y: sqr(t)
Z: 0
Range: 0 to 1
Use a mathematical substitution with t = u^2:
X: u^2
Y: sqr(u^2) = u
Z: 0
Range: 0 to 1
Now, for the substituted definition the analytical curve creation succeeds:
X: t^2
Y: t
Z: 0
Range: 0 to 1
See also
Curve Creation, Line, Circle, Ellipse, Arc, Rectangle, Polygon, Spline, 3D Polygon, Selected Edges to Curve, Chamfer Curve, Blend Curve