An Image depicting the poloidal (red, called theta) direction and the toroidal (blue, called phi) directions. Notably absent is the radial coordinate which starts from the center of the tube and points out. Made in POV-Ray by Dave Burke 2006
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Now with antialiasing. Note, the stratification of the shadows of the coordinate arrows is due to the fact that I have mocked up an array of lights to shine on my torus.
An Image depicting the poloidal (red, called theta) direction and the toroidal (blue, called phi) directions. Notably absent is the radial coordinate which starts from the center of the tube and points out. Madde in POV-Ray by Dave Burke 2006
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