INCLAN Graphics: plot arc: Difference between revisions
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== Synopsis == | == Synopsis == | ||
''' | '''arc''' ''x'' ''y'' ''a'' [''b'' [''φ''<sub>1</sub> ''φ''<sub>2</sub>]] | ||
== Description == | == Description == | ||
Draws a circle, an ellipse, or part of a circle or ellipse with the center at , and half axes ''a'' and ''b''. If ''b'' is omitted, a circle with radius ''a'' (measured in the ''x''-direction) is drawn. Optionally, only the part of the ellipse starting and ending with phase angles ''φ''<sub>1</sub> and ''φ''<sub>2</sub>, respectively, is drawn. The phase angle is 0º on the positive ''x''-axis and increases counterclockwise. This command can also be used in list mode, where the parameters are vector expressions. | Draws a circle, an ellipse, or part of a circle or ellipse with the center at , and half axes ''a'' and ''b''. If ''b'' is omitted, a circle with radius ''a'' (measured in the ''x''-direction) is drawn. Optionally, only the part of the ellipse starting and ending with phase angles ''φ''<sub>1</sub> and ''φ''<sub>2</sub>, respectively, is drawn. The phase angle is 0º on the positive ''x''-axis and increases counterclockwise. This command can also be used in list mode, where the parameters are vector expressions. | ||
Revision as of 14:23, 13 August 2009
Synopsis
arc x y a [b [φ1 φ2]]
Description
Draws a circle, an ellipse, or part of a circle or ellipse with the center at , and half axes a and b. If b is omitted, a circle with radius a (measured in the x-direction) is drawn. Optionally, only the part of the ellipse starting and ending with phase angles φ1 and φ2, respectively, is drawn. The phase angle is 0º on the positive x-axis and increases counterclockwise. This command can also be used in list mode, where the parameters are vector expressions.