Part Spiral

Description
The Part Spiral command creates a parametric spiral shape.

FreeCAD creates a spiral, with default values for growth and radius. The number of rotations can be set too.

By default, the spiral is positioned with its start point on the x-axis with a distance of the radius from the origin (0,0,0). Its rotation is counterclockwise.



Usage

 * 1) There are several ways to invoke the command:
 * 2) * Press the button.
 * 3) * Select the option from the menu.
 * 4) * Select the option from the menu.
 * 5) Set options and press.
 * 6) To close the dialog press.

Example


A Part spiral object with the values of the bottom scripting example are shown here.

Properties
See also: Property editor.

A Part Spiral object is derived from a Part Feature object and inherits all its properties. It also has the following additional properties:

Data

 * The growth of the spiral. This is the distance between the curves of the spiral.
 * The radius of the spiral. This is the distance between the origin and the start point of the curve.
 * The number of full 360° rotations of the spiral. The rotation direction is counterclockwise.
 * The segment length of the spiral.

Scripting
A Part Spiral is created with the method of the document.


 * Where is the name for the object. The name must be unique for the entire document.
 * The function returns the newly created object.

The is the user editable name for the object. It can be easily changed by

You can access and modify attributes of the object. For example, you may wish to modify the growth, radius and rotations parameters.

You can change its placement and orientation with: