topic Re: Quick question to splines in Fusion Design, Validate & Document Forum

Quick question to splines

do.lorenz — Sun, 08 Jan 2023 20:34:50 GMT

Hi there,

I always had the assumption that I understand splines. However, when looking at the attached picture, I do not get why the right and left side do look different? As all the measurements and Tangents are the same, I thought that they should look the same.

Thanks for your help,

Dominik

Betreff: Quick question to splines

g-andresen — Sun, 08 Jan 2023 21:07:29 GMT

Hi,

Please share the file

File > export > save as f3d on local device >attach to next post

günther

Betreff: Quick question to splines

do.lorenz — Sun, 08 Jan 2023 21:10:45 GMT

Sure. Please find the file attached.

Re: Quick question to splines

davebYYPCU — Sun, 08 Jan 2023 21:27:47 GMT

Those of us who mirror parts from half sketches would never know you can do that.

At least you have a choice now.

So many duplicates, you are working too hard.

@jeff_strater one for the sketch engine guys?

Might help....

Re: Quick question to splines

do.lorenz — Sun, 08 Jan 2023 21:38:27 GMT

Haha, yeah I thought that this would come. I discovered this behaviour and created this example to highlight that everything is the same on both sides.

Re: Quick question to splines

laughingcreek — Sun, 08 Jan 2023 22:10:19 GMT

i don't know the technical/mathematical reason, but I do know that you can't count on 2 different fit point splines with the same dimensions to be the same. one of a few reasons why mirroring fitpoint splines is problematic. you can count on control point splines to behave though.

Re: Quick question to splines

laughingcreek — Sun, 08 Jan 2023 22:14:24 GMT

and this is why you don't want to use sketch offset on a spline-