T-FLEX Parametric CAD. Fundamentals. 2D Design

Fundamentals. Two-Dimensional Design
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existing circle using option, and then move the cursor over the node to become the end of the second
semi-axis, and type . The required ellipse will be created.
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2. Ellipse, tangent to a circle and a line
Upon calling the command, use the following sequence of options:
This set of options creates an ellipse with the first semi-axis defined by the radius of a circle concentric with
the ellipse. The second semi-axis defined by tangency to a line. To create this type of ellipse, select an
existing circle using option, and then move the cursor over the line to define tangency to the ellipse,
and type . The required ellipse will be created.
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When creating ellipses by any of the above means, you can select elements using the following icons:
Select Node
Select tangent Circle
Select tangent Line
Select symmetry axis (Line)
Object snapping mode can be used as well.
Ellipses Created from 2D Projection, 2D Fragment or Copy
Such ellipses can be created in object snapping mode, provided that the appropriate parameter is set on the
“Snap” tab of the command “SO: Set System Options”. Move the cursor over a graphic entity – full
ellipse or elliptic arc that is part of a 2D projection, 2D fragment or copy. The line will highlight. Click .
An ellipse will be created on top of the selected entity.
If the object-snapping mode is off, then only 2D projection entities can be used for creating an ellipse. This is
done by selecting the desired projection on the drawing using the option. The selected projection will
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