Difference between revisions of "Circle Command"
From GeoGebra Manual
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− | <noinclude>{{Manual Page|version=4.2}}</noinclude> | + | <noinclude>{{Manual Page|version=4.2}}</noinclude>{{command|conic}} |
− | {{command|conic}} | ||
;Circle[ <Point>, <Radius Number> ]:Yields a circle with given center and radius. | ;Circle[ <Point>, <Radius Number> ]:Yields a circle with given center and radius. | ||
;Circle[ <Point>, <Segment> ]:Yields a circle with given center and radius equal to the length of the given segment. | ;Circle[ <Point>, <Segment> ]:Yields a circle with given center and radius equal to the length of the given segment. | ||
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{{Note|1=See also [[Image:Tool_Compasses.gif]] [[Compass Tool|Compass]], [[Image:Tool_Circle_Center_Point.gif]] [[Circle with Center through Point Tool|Circle with Center through Point]], [[Image:Tool_Circle_Center_Radius.gif]] [[Circle with Center and Radius Tool|Circle with Center and Radius]], and [[Image:Tool_Circle_3Points.gif]] [[Circle through 3 Points Tool|Circle through 3 Points]] tools.}} | {{Note|1=See also [[Image:Tool_Compasses.gif]] [[Compass Tool|Compass]], [[Image:Tool_Circle_Center_Point.gif]] [[Circle with Center through Point Tool|Circle with Center through Point]], [[Image:Tool_Circle_Center_Radius.gif]] [[Circle with Center and Radius Tool|Circle with Center and Radius]], and [[Image:Tool_Circle_3Points.gif]] [[Circle through 3 Points Tool|Circle through 3 Points]] tools.}} | ||
− | {{betamanual|version=5.0|{{Note|1=From GeoGebra 5, this command will work | + | |
− | }} | + | {{betamanual|version=5.0| {{Note| 1=From GeoGebra 5, this command will work with 3D objects as well.}}}} |
+ | ;Circle[ <Line>, <Point> ] | ||
+ | :Creates a circle with line as axis and through the point. | ||
+ | ;Circle[ <Point>, <Radius>, <Direction> ] | ||
+ | :Creates a circle with center, radius, and axis parallel to direction, which can be a line, vector or plane. | ||
+ | :{{example| 1=<div><code><nowiki>Circle[ <Point>, <Radius>, <Plane> ]</nowiki></code> yields a circle parallel to the plane and with perpendicular vector of the plane as axis.</div>}} | ||
+ | ;Circle[ <Point>, <Point>, <Direction> ] | ||
+ | :Creates a circle with center, through a point, and axis parallel to direction. |
Revision as of 11:12, 29 July 2014
- Circle[ <Point>, <Radius Number> ]
- Yields a circle with given center and radius.
- Circle[ <Point>, <Segment> ]
- Yields a circle with given center and radius equal to the length of the given segment.
- Circle[ <Point>, <Point> ]
- Yields a circle with given center through a given point.
- Circle[ <Point>, <Point>, <Point> ]
- Yields a circle through the three given points (if they do not lie on the same line).
Note: See also Compass, Circle with Center through Point, Circle with Center and Radius, and Circle through 3 Points tools.
Following text is about a feature that is supported only in GeoGebra 5.0.
Note: From GeoGebra 5, this command will work with 3D objects as well. |
- Circle[ <Line>, <Point> ]
- Creates a circle with line as axis and through the point.
- Circle[ <Point>, <Radius>, <Direction> ]
- Creates a circle with center, radius, and axis parallel to direction, which can be a line, vector or plane.
- Example:
Circle[ <Point>, <Radius>, <Plane> ]
yields a circle parallel to the plane and with perpendicular vector of the plane as axis.
- Circle[ <Point>, <Point>, <Direction> ]
- Creates a circle with center, through a point, and axis parallel to direction.
Comments
Tips[edit]
Use circles to fix the distance between two objects[edit]
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.