Wolfram Function Repository

Instant-use add-on functions for the Wolfram Language

Function Repository Resource:

 CircularWinder

Source Notebook

Create a rotatable arrow handle

Contributed by: Wolfram Staff

ResourceFunction["CircularWinder"][θ]

represents a circular winder graphics object with an arrow rotated by the angle θ.

ResourceFunction["CircularWinder"][Dynamic[θ]]

takes the angle position to be the dynamically updated current value of θ, with this value being reset if the winder arrow is moved.

Details

ResourceFunction["CircularWinder"] is a wrapper function for Experimental`AngularSlider.
The spiral in the center of the circular winder corresponds to the absolute value of the rotation angle.
ResourceFunction["CircularWinder"][Dynamic[…]] is also accepted, with arguments suitable for Dynamic.

Examples

Basic Examples (2) 

Set up a circular winder with a movable arrow:

In[1]:=
ResourceFunction["CircularWinder"][Pi/4]
Out[1]=

Set up a circular winder that defines the value of the angle:

In[2]:=
DynamicModule[{\[Theta] = \[Pi]/2}, {ResourceFunction[ "CircularWinder"][Dynamic[\[Theta]]], Dynamic[\[Theta]]}]
Out[2]=

Scope (2) 

A continuous circular winder:

In[3]:=
DynamicModule[{\[Theta] = 0}, {ResourceFunction["CircularWinder"][ Dynamic[\[Theta]]], Dynamic[\[Theta]]}]
Out[3]=

A discrete circular winder:

In[4]:=
ResourceFunction["CircularWinder"][ Dynamic[\[Theta], (\[Theta] = \[Pi] Round[#/\[Pi], 1/6]) &]]
Out[4]=

Set up a discrete circular winder that defines the value of the angle:

In[5]:=
DynamicModule[{\[Theta] = 0}, {ResourceFunction["CircularWinder"][ Dynamic[\[Theta], (\[Theta] = \[Pi] Round[#/\[Pi], 1/6]) &]], Dynamic[\[Theta]]}]
Out[5]=

Version History

  • 2.0.0 – 17 May 2021
  • 1.0.0 – 04 November 2019

License Information