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Importing airfoil data, making a curve, and manipulating curve?

Importing airfoil data, making a curve, and manipulating curve?

Importing airfoil data, making a curve, and manipulating curve?

(OP)
Using the following tutorial and the macros that came with CATIA, I was able to import airfoil data points into CATIA from which I created a curve in a sketch. How can I manipulate the curve and scale it.
https://www.youtube.com/watch?v=nP_gErfA5IQ

For example, while preserving the shape, I want to be able to rotate the curve and scale it. However, I can't seem to do that since the curve is fixed to the imported coordinate points. Any tips?

RE: Importing airfoil data, making a curve, and manipulating curve?

(OP)
One thing I'm trying to do is to create a new axis system where I want the airfoil tip to start at. However, the macro doesn't recognize or allow me to select another axis system to generate the coordinates from.

RE: Importing airfoil data, making a curve, and manipulating curve?

Hi,
Try extracting the curve and then try rotate and scaling it.

RE: Importing airfoil data, making a curve, and manipulating curve?

(OP)
Thanks. I've got that working and am using the Translate and Scale tools in the Wireframe workbench. But how do I scale the airfoil to a specific dimension? I want to scale the airfoil up to a specified chord length but the "scale" tool is very imprecise and only allows me to scale based on a scaling value not a dimension.

RE: Importing airfoil data, making a curve, and manipulating curve?

why dont you scale the point in excel ?

Eric N.
indocti discant et ament meminisse periti

RE: Importing airfoil data, making a curve, and manipulating curve?

Hi,
For scaling to a specific dimension,you can divide the final dimension by initial dimension to get the ratio.

RE: Importing airfoil data, making a curve, and manipulating curve?

(OP)
Yeah. Now I'm just putting the airfoil coordinates in Excel, scaling everything as needed there, then using a Macro to import the points.

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