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Hi shean85,<br />
Are you using ObjectArx? Cause if so, you can :<br />
<br />
dStartAngle = (Start - Center).angleTo(AcGeVector<wbr />2d::kXAxis<wbr />);<br />
dEndAngle = (End - Center).angleTo(AcGeVector<wbr />2d::kXAxis<wbr />);<br />
<br />
where Start, Center, End are AcGePoint2d.<br />
Radius information is useless/redundant.
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Hi shean85,
Are you using ObjectArx? Cause if so, you can :

dStartAngle = (Start - Center).angleTo(AcGeVector2d::kXAxis);
dEndAngle = (End - Center).angleTo(AcGeVector2d::kXAxis);

where Start, Center, End are AcGePoint2d.
Radius information is useless/redundant.

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hm ... just forgot to mention you'll have to include &lt;math.h&gt; if not yet included ...<br />
<br />
ZOPPO
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hm ... just forgot to mention you'll have to include <math.h> if not yet included ...

ZOPPO

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<div class="content wysiwyg-content">
I need &nbsp;to find Start angle and End angle for the ARC with known Radius(r),Center point(x0,y0),Start(x1,y1) and End(x2,y2) points of the ARC.<br />
<br />
<br />
Please help me.<br />
<br />
Thank you.<br />

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I need  to find Start angle and End angle for the ARC with known Radius(r),Center point(x0,y0),Start(x1,y1) and End(x2,y2) points of the ARC.


Please help me.

Thank you.


Draw ARC

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