Drawing instructions
For the first segment, place a (pointing) finger on the desired position in the drawing area and move the foot with the finger entrance against the fingertip.
Place the ring of the tool over the foot.
Determine by rotating the tool, the orientation for the first segment.
Decide on the radius of the polygon and place a pushpin in the corresponding indent of both legs.
For the second segment: Rotate the tool slightly off from the pushpins and lift the tool and rotate further in any of both directions until the legs have passed the pushpins. Slide the tool back against the pushpin and place another pushpin in the appropriate radius position in the unmarked leg.
Repeat this till you are back at the starting point.
After creating all the segments you can remove the tool and the magnetic foot and connect the pushpins/corners with straight lines.
In addition, by leaving the pushpin in the centre one or more radii can be drawn.
More precision with alignment
Place a pushpin first to mark the centre position in case this is relevant.
Move the magnetic foot so the groove in the finger entrance embraces the pushpin.
Aligning the polygon tool with existing lines
The ring has small indents for alignment of the polygon with a line.
Placing the bisector indents on a line, the centre will be on that line. The segment is cut in half.
Placing the orthogonal indents on a line puts the centre on the line and ensures the side of the segment is parallel to the line.
Spider web
For a sophisticated spider web use different polygon tools.
Create a few – slightly shifted – concentric polygons on the TactiPad and draw lines through the corners. See what happens when the more cornered polygons are at the outside of the web.