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<tr class="memitem:ae89d897d07c9da4993eb98cd970252b0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classipe_1_1_angle.html">Angle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classipe_1_1_arc.html#ae89d897d07c9da4993eb98cd970252b0">iAlpha</a></td></tr>
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<tr class="memitem:ad0ea849ecef4fe7d3e17b9a8a70fe89f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classipe_1_1_angle.html">Angle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classipe_1_1_arc.html#ad0ea849ecef4fe7d3e17b9a8a70fe89f">iBeta</a></td></tr>
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<div class="textblock"><p>An arc of an ellipse. </p>
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<p>The ellipse is represented using the matrix that transforms the unit circle x^2 + y^2 = 1 to the desired ellipse. The arc coordinate system is the coordinate system of this unit circle.</p>
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<p>A full ellipse is described by iAlpha = 0, iBeta = IpeTwoPi.</p>
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<p>An elliptic arc is the image of the circular arc from iAlpha to iBeta (in increasing angle in arc coordinate system). </p>
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