geom/doc/salome/gui/GEOM/input/creating_ellipse.doc

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\page create_ellipse_page Ellipse

To create an \b Ellipse in the <b>Main Menu</b> select <b>New Entity - > Basic - > Ellipse</b>

\n You can define an \b Ellipse by its <b>Center</b> point, a \b
Vector giving its normal, another vector specifying the direction of
ellipse's <b>Major Axis</b> (optionally) and its <b>Major</b> & <b>Minor Radiuses</b>.
\n The \b Result of the operation will be a GEOM_Object (edge).

\note The parameter <b>Major Axis</b> is optional. It is calculated
automatically basing on the direction of the normal vector (by default
it corresponds to the OX axis of the global coordinate system).

\note Actual direction of the major axis vector is defined as
<EM> Vmaj' = (Vn * Vmaj) * Vn</em> where \em Vn is a normal vector and
\em Vmaj is an original vector of the major axis.

\n <b>TUI Command (no major axis):</b> <em>geompy.MakeEllipse(Point, Vector, RadiusMajor, RadiusMinor)</em>
\n <b>Arguments:</b> Name + 1 vertex (for the center) + 1 edge (for
the direction) + 1 X Radius + 1 Y Radius.

\n <b>TUI Command (use major axis):</b> <em>geompy.MakeEllipseVec(Point, Vector, RadiusMajor, RadiusMinor, VectorMajor)</em>
\n <b>Arguments:</b> Name + 1 vertex (for the center) + 1 edge (for
the normal direction) + 1 X Radius + 1 Y Radius + 1 edge (for the
major axis direction)

\image html ellipse.png

<b>Example:</b>

\image html ellipsesn.png

Our <b>TUI Scripts</b> provide you with useful examples of creation of
\ref tui_creation_ellipse "Basic Geometric Objects".

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