Difference between revisions of "Arc Command"

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<noinclude>{{Manual Page}}</noinclude>
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<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|geometry}}
; Arc[Conic, Point A, Point B]: Returns a conic section arc between two points ''A'' and ''B'' on the conic section ''c''.
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;Arc( <Circle>, <Point M >, <Point N> )
: Note: This only works for a circle or ellipse.  
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:Returns the directed arc (counterclockwise) of the given circle, with endpoints M and N.
; Arc[Conic, Number t1, Number t2]: Returns a conic section arc between two parameter values ''t1'' and ''t2'' on the conic section.
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: Note: Internally the following parametric forms are used:  
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;Arc( <Ellipse>, <Point M>, <Point N> )
:* Circle: ''(r cos(t), r sin(t))'' where ''r'' is the circle's radius.  
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:Returns the directed arc (counterclockwise) of the given ellipse, with endpoints M and N.
:* Ellipse: ''(a cos(t), b sin(t))'' where ''a'' and ''b'' are the lengths of the semimajor and semiminor axes.
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;Arc( <Circle>, <Parameter Value>, <Parameter Value> )
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:Returns the circle arc of the given circle, whose endpoints are identified by the specified values of the parameter.
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:{{Note|Internally the following parametric forms are used:<br/>Circle: (''r'' cos(''t''), ''r'' sin(''t'')) where ''r'' is the circle's radius.}}
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;Arc( <Ellipse>, <Parameter Value>, <Parameter Value> )
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:Returns the circle arc of the given ellipse, whose endpoints are identified by the specified values of the parameter.
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:{{Note|Internally the following parametric forms are used:<br/>Ellipse: (''a'' cos(''t''), ''b'' sin(''t'')) where ''a'' and ''b'' are the lengths of the semimajor and semiminor axes.}}
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{{Note|1=See also [[CircumcircularArc Command|CircumcircularArc]] command.}}

Latest revision as of 16:17, 7 October 2017


Arc( <Circle>, <Point M >, <Point N> )
Returns the directed arc (counterclockwise) of the given circle, with endpoints M and N.
Arc( <Ellipse>, <Point M>, <Point N> )
Returns the directed arc (counterclockwise) of the given ellipse, with endpoints M and N.
Arc( <Circle>, <Parameter Value>, <Parameter Value> )
Returns the circle arc of the given circle, whose endpoints are identified by the specified values of the parameter.
Note: Internally the following parametric forms are used:
Circle: (r cos(t), r sin(t)) where r is the circle's radius.
Arc( <Ellipse>, <Parameter Value>, <Parameter Value> )
Returns the circle arc of the given ellipse, whose endpoints are identified by the specified values of the parameter.
Note: Internally the following parametric forms are used:
Ellipse: (a cos(t), b sin(t)) where a and b are the lengths of the semimajor and semiminor axes.
Note: See also CircumcircularArc command.
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