T-FLEX Parametric CAD. Fundamentals. 2D Design

Ellipses
click . To enter the exact value of the second semi-axis length, use the property window or the parameters
dialog box (the option ). The required ellipse will be created.
2. Ellipse passing through three nodes
Upon calling the command, use the following sequence of options:
or
These option combinations create an ellipse passing through two nodes, with the second semi-axis defined
by the condition of passing through the third node. To create this type of ellipse, select three nodes using the
option (the first and second nodes can also be selected by the option ).
3. Ellipse passing through two nodes, tangent to line
Upon calling the command, use the following sequence of options:
or
These option combinations create an ellipse, passing through two nodes, with the second semi-axis defined
by tangency to the line at the tip of the semi-axis. To create this type of ellipse, use the option or
and select the first node, then, using the same options, select the second node. After that, move the
cursor over the line that will be making tangency with the ellipse at the tip of the second semi-axis. The
required ellipse will be created.
Another two types of ellipses can be constructed in any ellipse creation mode:
1. Ellipse tangent to a circle, passing through node
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 is defined by selecting its end node. To create this type of ellipse, select an
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