Simple challenge (?)

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Simple challenge (?)

Postby Genete » Sat Jul 10, 2010 11:11 pm

Draw a perfect circle with 5 points.
Anyone?
-G
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Postby Víctor Paredes » Sat Jul 10, 2010 11:50 pm

Here is how I got my 5 points circle:
I created a star, erased the inside points, selected the 5 remaining points and adjusted the curvature until get a circle. To be sure, I compared it with a 4 points circle.

I won? I won?
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Postby Genete » Sat Jul 10, 2010 11:58 pm

I won? I won?

Yup :)
what about a 6 points circle?
AFAIK the star tool doesn't allow select the number of points (which is totally silly btw)
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Postby Víctor Paredes » Sun Jul 11, 2010 12:06 am

I was writing this other answer before read about your new challenge :wink:
you can use bones as reference to get circles with more or less points.
for example, for a 3 points circle I created 3 bones of the same size with the same origin place. Then rotated each bone on 0 degrees, 120 degrees and 240 degrees (which means 360/3, a complete circle divided on 3).
Then I use that bones as a reference to add the 3 points. Once the points are on place, it's all find the right curvature.
Image

PD: of course, using Fazek's polygon tool you would avoid all this steps.
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Postby Genete » Sun Jul 11, 2010 12:11 am

Guess you don't have bones and don't have Fazek's tools installed.
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Postby Víctor Paredes » Sun Jul 11, 2010 12:13 am

Genete wrote:Guess you don't have bones and don't have Fazek's tools installed.

hehehe, you are putting it hard. let me think...
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Postby sbtamu » Sun Jul 11, 2010 12:19 am

LOL, I was doing it old school way. I took 360/5 to get 72 degrees and used tan18=x/1 to get the y point and sin36=x/1 to find midpoints of each edge so i knew when i used curvature tool i was at a perfect circle when i hit the midpoints. I guess I made it harder than needed to be. Anyways it made me unfreeze the trig side of my brain that's been dormant for years.
Sorry for bad animation

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Postby Genete » Sun Jul 11, 2010 12:21 am

sbtamu wrote:LOL, I was doing it old school way. I took 360/5 to get 72 degrees and used tan18=x/1 to get the y point and sin36=x/1 to find midpoints of each edge so i knew when i used curvature tool i was at a perfect circle when i hit the midpoints. I guess I made it harder than needed to be. Anyways it made me unfreeze the trig side of my brain that's been dormant for years.


Calculators are forbidden :)
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Postby Genete » Sun Jul 11, 2010 12:22 am

When you finish the 6 points circle, please go on with the 7 points one. It is possible ;)
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Postby Víctor Paredes » Sun Jul 11, 2010 12:28 am

hehe, I have 3, 6 and 8 point circles. but can't get the 7 points one!
It's so hard!
I'm trying to think as Genete does... let's see, If I would created the spring mechanism...
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Postby sbtamu » Sun Jul 11, 2010 12:35 am

could 7 be hard because its the only number between 1-10 that cant be divided into 360 even?
Sorry for bad animation

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Postby Víctor Paredes » Sun Jul 11, 2010 12:37 am

Ok, you can rotate a line by angles too, so you can use lines as references. But I'm sure it's not what Genete is thinking about.
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Postby Genete » Sun Jul 11, 2010 12:45 am

Here it is:
Image
I did not use the calculator to place the points.

I just did this challenge to pray for the addition of a Star tool with options... :( :roll:
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Postby Genete » Sun Jul 11, 2010 12:46 am

selgin wrote:Ok, you can rotate a line by angles too, so you can use lines as references. But I'm sure it's not what Genete is thinking about.


How do you calculate the angle without a calculator?
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Postby Víctor Paredes » Sun Jul 11, 2010 12:49 am

Genete wrote:
selgin wrote:Ok, you can rotate a line by angles too, so you can use lines as references. But I'm sure it's not what Genete is thinking about.


How do you calculate the angle without a calculator?

I said it, I'm thinking as Genete does, my brain is very fast :roll:
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