Difference between revisions of "Comments:Circle Command"

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Circle[Point M, Number r]: Yields a circle with midpoint M and radius r.  
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==Tips==
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===Use circles to fix the distance between two objects===
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Circles are a great way to make the distance between two objects constant: If there are two points ''A'' and ''B'' on two lines ''g'' (point ''A'') and ''h'' (point ''B'') where ''A'' can be moved and ''B'' should have the constant distance ''r'' to ''A'' you can define ''B'' as the intersection between the line ''h'' and the circle around ''A'' with the radius ''r''. As a circle intersects a line at two points (in case it's not tangetial or passing by) you have to hide & ignore the second intersection.
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[[File:Fixed_Distance_With_Circle.png|thumb|300px|center|An illustration of the described technique to fix the distance between two points ''A'' and ''B<sub>1</sub>'']]
  
Circle[Point M, Segment]: Yields a circle with midpoint M whose radius is equal to the length of the given segment.
 
 
Circle[Point M, Point A]: Yields a circle with midpoint M through point A.
 
 
Circle[Point A, Point B, Point C]: Yields a circle through the given points A, B and C.
 
 
'''Note:''' Also see tools [[Tools/Compass|Compass]],  [[Tools/Circle with Center through Point|Circle with Center through Point]],  [[Tools/Circle with Center and Radius|Circle with Center and Radius]], and  [[Tools/Circle through Three Points|Circle through Three Points]]
 
 
[[Category:Manual]] [[Category:Commands]]
 

Latest revision as of 07:46, 17 May 2013

Tips

Use circles to fix the distance between two objects

Circles are a great way to make the distance between two objects constant: If there are two points A and B on two lines g (point A) and h (point B) where A can be moved and B should have the constant distance r to A you can define B as the intersection between the line h and the circle around A with the radius r. As a circle intersects a line at two points (in case it's not tangetial or passing by) you have to hide & ignore the second intersection.

An illustration of the described technique to fix the distance between two points A and B1
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