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#1
October 15th, 2007, 12:35 PM
posted to microsoft.public.visio.general
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Origo of ellipse in EllipticalArc
Hi!
I need to calculate the origo of the ellipse that an EllipticalArc is drawn from. From the EllipticalArcTo geometry section i get. x1, y1 - coordinates for starting point x2, y2 - coordinates for control point x3, y3 - coordinate for vertex point alpha - angle of the ellipses local coordinate system to the global coordinate system D - ratio between major and minor axis From these given values I need to calculate the global origo of the EllipticalArcs ellipse. BR 
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#2
October 15th, 2007, 02:04 PM
posted to microsoft.public.visio.general
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Origo of ellipse in EllipticalArc
On Mon, 15 Oct 2007 04:35:02 -0700, Anders
wrote: Hi! I need to calculate the origo of the ellipse that an EllipticalArc is drawn from. From the EllipticalArcTo geometry section i get. x1, y1 - coordinates for starting point x2, y2 - coordinates for control point x3, y3 - coordinate for vertex point alpha - angle of the ellipses local coordinate system to the global coordinate system D - ratio between major and minor axis From these given values I need to calculate the global origo of the EllipticalArcs ellipse. You may be able to find what you want he http://mathworld.wolfram.com/Ellipse.html -- Regards, Paul Herber, Sandrila Ltd. Electronics for Visio http://www.electronics.sandrila.co.uk/
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#3
October 15th, 2007, 03:04 PM
posted to microsoft.public.visio.general
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Origo of ellipse in EllipticalArc
Me and a guy here where I work was successful in solving it using Maple...
Thanks anyway! "Paul Herber" wrote: On Mon, 15 Oct 2007 04:35:02 -0700, Anders wrote: Hi! I need to calculate the origo of the ellipse that an EllipticalArc is drawn from. From the EllipticalArcTo geometry section i get. x1, y1 - coordinates for starting point x2, y2 - coordinates for control point x3, y3 - coordinate for vertex point alpha - angle of the ellipses local coordinate system to the global coordinate system D - ratio between major and minor axis From these given values I need to calculate the global origo of the EllipticalArcs ellipse. You may be able to find what you want he http://mathworld.wolfram.com/Ellipse.html -- Regards, Paul Herber, Sandrila Ltd. Electronics for Visio http://www.electronics.sandrila.co.uk/
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