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T-FLEX Parametric CAD. Fundamentals. 2D Design

T-FLEX Parametric CAD. Fundamentals. 2D Design

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<strong>Fundamentals</strong>. Two-Dimensional <strong>Design</strong><br />

244<br />

- Function in Polar coordinates (P = f (A))<br />

Example: P = #2 defines a circle with the radius equal to the value of the parameter #2. #2 – is the<br />

second special notation that can be used in function defining expressions. It is equal to the distance<br />

between the nodes that define the coordinate system.<br />

-<strong>Parametric</strong> definition in Polar coordinates (A = f(t), P = f(t)).<br />

In T-<strong>FLEX</strong> system, such definition of functional relations may be convenient in a number of situations.<br />

For example, suppose, a database stores the values of angles and distances of a cam coordinates. Use<br />

the database access functionality and define a parametric relation where the variable parameter #1 is the<br />

record number in this database.<br />

X=, Y= (or A=, P=) Depending on the type of the function being defined, these two fields describe the<br />

expressions defining Х and Y (for functions in Cartesian coordinates) or A, P (for functions in Polar<br />

coordinates). The following notations are used: #1 – the first parameter, #2 – the second parameter of the<br />

function (can be optional).

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