think about hexagram world
กThe priciple of the drawing by arc guides and T-sliderก
Catch the vanishing point which left it far on the hexagram seet.
กThe vertical bisection line of the circular arc crosses with the center of the circle.ก
Apply this principle, and draw a radial line by using the arc guide and the T-slider.
Make a T-slider slide into the arc guide only.
It is very easy operation.
In the main page of hexagram tools
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