Coordinates

Visualizing a plane in Cartesian and circular-polar coordinates.

Built with p5.js.

Controls

• Click in the canvas to put down and pick up the dot.
• Move the mouse to control the position of the dot (when picked up).
• Double click or press P to toggle pattern fill.
• Mousewheel UP over the canvas, or press + (or =), to increase grid mesh.
• Mousewheel DOWN over the canvas, or press -, to decrease grid mesh.
• You can save the image as you would any image.
  So no need to screenshot—though that works too.