topic Re: Equilateral polygons? in Modeling

Equilateral polygons?

Anonymous — Wed, 29 Jan 2025 14:18:36 GMT

Does AC have a tool that is similar to Autocad's "polygon" tool that creates equilateral sided polygons with user input to the number of equal sides for the polygon, ie a pentagon or octagon?

Re: Equilateral polygons?

Karl Ottenstein — Mon, 26 Dec 2005 16:43:58 GMT

Josephus wrote:
Does AC have a tool that is similar to Autocad's "polygon" tool that creates equilateral sided polygons with user input to the number of equal sides for the polygon, ie a pentagon or octagon?

Sadly, no. The trick/workaround is to use the magic wand on a circle. Change the segments along circle in the Magic Wand Settings to be the number of sides for the polygon (e.g., 5 for pentagon), then magic wand (space click) the circle with a line tool active.

ArchiRuler from Cigraph allows the direct rubber-band drawing of polygons within ArchiCAD.

Karl

Re: Equilateral polygons?

Anonymous — Mon, 26 Dec 2005 17:08:12 GMT

That workaround is ok for me...the Autocad command references all back to the circle also (polygon inscribed/circumscribed), so this is fine. Thank you very much.

Re: Equilateral polygons?

Erika Epstein — Tue, 27 Dec 2005 17:22:04 GMT

Another way to do this is to set the 'special snap points' in the coordinate box to the number of sides of your polygon. These can then be traced with the polyline or line tool to create your polygon of choice.

Re: Equilateral polygons?

Anonymous — Wed, 28 Dec 2005 00:03:42 GMT

Erika wrote:
Another way to do this is to set the 'special snap points' in the coordinate box to the number of sides of your polygon. These can then be traced with the polyline or line tool to create your polygon of choice.

Thank you, that works for me too.

Re: Equilateral polygons?

TomWaltz — Mon, 02 Jan 2006 15:46:53 GMT

Josephus wrote:
Erika wrote:
Another way to do this is to set the 'special snap points' in the coordinate box to the number of sides of your polygon. These can then be traced with the polyline or line tool to create your polygon of choice.
Thank you, that works for me too.

There is an object called "ArchiGon" made by David Larrew that lets you draw equilateral polygons.

It's here http://www.archisolutions.com/Store/GDL.htm under "Free downloads"

Re: Equilateral polygons?

TomWaltz — Mon, 09 Jan 2006 15:59:24 GMT

Interestingly Archicad only seems to allow polygons up to 8 sides before it considers it to be a circle.

I guess I'll need to dig out my old drafting book and figure out the math for higher-side count shapes....

Re: Equilateral polygons?

Erika Epstein — Tue, 10 Jan 2006 03:32:58 GMT

TomWaltz wrote:
Interestingly Archicad only seems to allow polygons up to 8 sides before it considers it to be a circle.

I guess I'll need to dig out my old drafting book and figure out the math for higher-side count shapes....

The snap points along a circle circumference method still works.

Re: Equilateral polygons?

Djordje — Tue, 10 Jan 2006 07:41:59 GMT

TomWaltz wrote:
Interestingly Archicad only seems to allow polygons up to 8 sides before it considers it to be a circle.

Hm?

Are you on line or polyline tool before MagicWanding the circle?

In the Magic Wand settings, is the preference given to the linear segments?