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Curve by law |
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You can plot a curve by setting it in the parametric form. The function for a curve point coordinate may be represented by an expression, a constant, a linear or cubic function. You can plot a curve in rectangular, cylindrical or spherical coordinates.
To plot a curve determined in the parametric view, use the Curve by law 
command.
After you run the command, a phantom of the curve being created in its default appearance will be displayed in the graphic area.
Step-by-step instructions
1.You can plot a curve using a group law from a collection. This way, the functions for all the coordinates of a curve point are specified at once. To do this, click the Select Group Rule 
button in the upper part of the Parameter Panel. Details...
2.Select the type of coordinates to plot the curve using the corresponding button in the Coordinate type group on the Parameter Panel:
Rectangular — coordinates X,Y,Z;
Cylindrical — coordinates R,A,Z;
Spherical — coordinates R,A,B.
More details on types of coordinates...
3.Set the functions for the curve point coordinates using the Law by <coordinate name> groups of controls on the Parameter Panel. Details...
4.You can select a coordinate system to place the curve by law. To do that, use the Coordinate System section. Details...
5.You cat set the name, The color and Display parameters curve by law. To do that, use the Properties section.
6.To complete the operation, click Create an object 
button.
The curve by law will be displayed in the graphic area; its icon will be displayed in the Design Tree .
7.To complete operation of the command, click Finish 
button.
Tips
•You can use the geometrical calculator.
•You can set tolerances for function parameter values expressed as linear values. To do this, invoke the Tolerance command located in the menu of the required parameter, or click on the icon 
, displayed in the parameter field (the icon is displayed if a tolerance is assigned to the parameter value). More details on assigning tolerance...
