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ptc-34861631-Visitor
1-Visitor
October 31, 2007
Question

Sketching a Polar Formula

  • October 31, 2007
  • 1 reply
  • 1825 views
I know this is probably a very simple task to complete, but I'm used to SolidWorks. So how would I sketch the following polar equation: x(theta) = 105cos(theta) - 17.5cos(3*theta) y(theta) = 105sin(theta) - 17.5sin(3*theta) Thanks a lot.

    1 reply

    J
    jgrimm1-Visitor
    1-Visitor
    October 31, 2007
    You must have a coordinate system defined In WF3 execute a Insert -> Model Datum -> Curve then pick From Equation in the menu -> Done Pick the coordinate system and make it cartesian then Equation in dialog box and type in the following in the editior theta = 360 * t x= 105*cos(theta) - 17.5*cos(3*theta) y= 105*sin(theta) - 17.5*sin(3*theta) I tried this and it works well...
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    ptc-34861631-VisitorAuthor
    1-Visitor
    November 1, 2007
    I only have Wildfire. I think its the version before WC 3, and theres no insert and I can't find a curve button. I know I'm being a pain, but do you know how to do it using the old software? Thanks. I'm not sure if it's because I'm using Linux or if it's because my university hasn't switched over yet but I only have the old package.
    A
    Anonymous
    November 1, 2007
    In Wildfire it's the same picks as Wildfire 3.0 You need to be in a part to create the curve by equation and the part must have a Coordinate System: File>New>Part Insert>Model Datum>Curve>From Equation Use: Insert>Model Datum>Coordinate System before the curve if your part doesn't have a Coordinate System
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