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Participating Frequently
September 14, 2021
Answered

Set circumference of shape or closed path?

  • September 14, 2021
  • 5 replies
  • 2450 views

I use illustrator to make a lot of precision templates involving oval and teardrop shapes. In order to set the circumference I use the document info window, objects selection. And it tells you the length of the path around the shape. You have to manually scale the shape up and down to the correct circumference. Usually zooming in really close to get precision adjustments. When I'm making 30 or more shapes this is really time consuming.

 

Is there an easier way to do this? That would be sweet if there was a way to input a path length or circumference to scale the object to.

 

TIA for any feedback or insight. 🙂

This topic has been closed for replies.
Correct answer Jacob Bugge

C,

 

Whatever Kurt says, I clearly (mis)understand it in a way that makes me suggest the following:

 

1) Select the object,

2) DoubleClick the Scale Tool or Object>Transform>Scale, then insert the following in the Uniform Scale box: key in the desired circumference multiplied by 100 followed by / and followed by the currecnt circumference from the Document Info window; to multiply by 100 just add 00 after the desired circumference if it is an integer, or move the decimal point two places to the right if there are at least two decimals, or do something in between if it is/has something in between; in other words, you just use the desired circumference and the current one and let Illy (job description Adobe Illustrator) do the calculation (she is always eager to help).

 

After that you can see the new desired circumference in the Document Info window; and enjoy.

 

5 replies

Participating Frequently
September 16, 2021

Example, all of these shapes are labeled in mm and corespond to the circumference of a circle with the specified mm diameter.

Jacob Bugge
Community Expert
Jacob BuggeCommunity ExpertCorrect answer
Community Expert
September 15, 2021

C,

 

Whatever Kurt says, I clearly (mis)understand it in a way that makes me suggest the following:

 

1) Select the object,

2) DoubleClick the Scale Tool or Object>Transform>Scale, then insert the following in the Uniform Scale box: key in the desired circumference multiplied by 100 followed by / and followed by the currecnt circumference from the Document Info window; to multiply by 100 just add 00 after the desired circumference if it is an integer, or move the decimal point two places to the right if there are at least two decimals, or do something in between if it is/has something in between; in other words, you just use the desired circumference and the current one and let Illy (job description Adobe Illustrator) do the calculation (she is always eager to help).

 

After that you can see the new desired circumference in the Document Info window; and enjoy.

 

Participating Frequently
September 16, 2021

ahh that works perfect! that will save me a lot of time fidgeting around trying to get them close to perfect with my previous method. I didnt know you could use math operations there, and wouldve never thought of that equation. Thank you 🙂

Jacob Bugge
Community Expert
Community Expert
September 16, 2021

For my part you are welcome, C.

 

Mylenium
Legend
September 15, 2021

CAD Tools has an info palette that live-updates all info as you go and you can also set it parametrically and have the tool do the math for the scaling. It's a costly plug-in, but if you use it a lot it may be totalyl worth it...

 

Mylenium

Participating Frequently
September 16, 2021

thanks ill check it out

 

Kurt Gold
Community Expert
Community Expert
September 15, 2021

cbraun,

 

I think your description is pretty clear, but just to be sure that I (or someone else) do not misunderstand your request: Can you post some examples/sketches that show what you are looking for?

 

Participating Frequently
September 16, 2021

I will add an example as a reply on the bottom

Myra Ferguson
Community Expert
Community Expert
September 15, 2021

Try Astute Graphic's VectorScribe (it's a plugin for Illustrator) and use Dynamic Shapes:

VectorScribe

 

tromboniator
Community Expert
Community Expert
September 15, 2021

Myra, as wonderful a tool as it is, it still doesn’t do circumference.

 

Peter

Myra Ferguson
Community Expert
Community Expert
September 15, 2021

Oh, well. It's been a while since I've used it. I wonder if one of their other tools might work.