Constraints of a Circumscribed Polygon

[Drewpan]

Hi All,

I have drawn a Circumscribed Polygon shown below but I cannot work out what it needs to be Constrained.

According to the Documentation, it uses a defined point (in this case the Origin) and another point for the

mid-point of the Polygon Side (in this case tangent to the construction Circle). It automagically calculates

the side length and angles. In theory it IS constrained (in MY Mind - but I am probably losing that😎).

I have tried a number of Constraints such as Length of Side and Tangent but it gives constant Over-Constrained

Errors. I don't know what it needs to be Constrained.

Any thoughts or solutions would be helpful.

Andrew

[TheCADWhisperer · Accepted solution]

Click and drag “horizontal” line. (You might have to grab it at one of the endpoints.)

What do you observe?

[Drewpan]

Hi,

What I Observe is that the Polygon rotates around the Origin, which I had not realised. My (wrong) assumption

was that it would be locked down. On thinking about it I changed the Construction line to an actual line from

the Origin of the correct length then made the Mid-point of one Polygon side Coincident to the end of the

Construction line and it locked down immediately. Not actually obvious to those of us with our "inexperienced

Blinkers" firmly in place.

Thank you.

Andrew

[TheCADWhisperer]

@Drewpan 

What you should have observed is that the “horizontal” line is missing a Horizontal Constraint.

[Drewpan]

Hi,

When I initially tried before I posted that alone didn't work.

After you suggested it I went back and tried again and it worked but also needed Tangent to the Construction

circle. That is what confused me because I needed two Constraints that were not obvious.

Andrew