# Equation Driven Curve

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## Popis

This add-in creates 3D curves from user-supplied parametric equations.  Curves can be specified in Cartesian, cylindrical, or spherical coordinates.

A live preview is shown in Autodesk® Fusion 360™ as the parameters are updated, and when the command is executed, the curve is created in the current sketch.

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## Informace o této verzi

Verze 2.0.0, 18.03.2021
Added cylindrical and spherical coordinate systems. Remember last curve definitions for each coordinate system. Improved curve preview quality.

## Hodnocení zákazníků

(5 hodnocení)

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Získat technickou pomoc
• Great! Almost Perfect
Eaton Asher | března 22, 2021 Ověřené stažení (Co je to?)

This tool is nearly perfect! Thank you so much for developing this. I have one small sugestion: add a way to increase/decrease the number of points in the equation - I am trying to make some cyclocycloid discs and unfortunately the 128 max number of points is insufficient. I've tried breaking it down into sections, but the default # points decreases whenever I try to plot a single peak!

Beside this, it appears this tool can handle just about anything! And the update is awesome too. Thank you!

Eaton Asher | března 23, 2021

Edit: the max number of spline points is 256, but since Fusion doesn't allow curves to be connected THEN closed, that's still not enough. Also, I cannot for the life of me figure out how to get the units/scale to work! These are my equations but whenever I put them in, I never ge the right sizes (I've tried converting the numbers to cm as you pointed out earlier, but to no avail). x(t) = 1.25*((44*sin(t)-(0.7*sin(44*t))+((2*0.0625*(0.7*sin(44*t)-sin(t))))/(sqrt(1-(1.4*cos(43*t))+0.49)))) y(t) = 1.25*((44*cos(t)-(0.7*cos(44*t))+((2*0.0625*(0.7*cos(44*t)-cos(t))))/(sqrt(1-(1.4*cos(43*t))+0.49)))) 0<t<2pi

• Works great, but dimensions are a factor 10 wrong?
Koen Ceyssens | července 31, 2020 Ověřené stažení (Co je to?)

App is working great, but I think there is something wrong with the dimensions. I have to add "0.1*" in front of all equations, otherwise the dimensions seem to be wrong.

Would be good if last settings were saved when app is opened again.

Great work!

Ben Longo | března 08, 2021

This is because the internal default unit within scripts is cm

Eros Nicolau | května 27, 2020 Ověřené stažení (Co je to?)

I am currently using v.2.0.8407, where the "Model" workspace has been renamed "Design". And the Equation Driven Curve option doesn't show up there (maybe because it wants to be displayed in the "Model" workspace, which it can't find?)

Alan McIntyre (Vydavatel) | července 17, 2020

There is an update in process with some fixes and improvements. You should be able to find the menu item in Sketch under Create. Note that you'll need to have a sketch open in order for this set of menus to be available.

• Just what I am looking for ... but I am using macOS
Gordon Rollins | prosince 28, 2019

Please publish a version for macOS!!

Alan McIntyre (Vydavatel) | února 25, 2020

At the moment I don' have the necessary tools for Mac C++ development, or the time to get familiar with them, as all of my current paid projects are on Windows or Linux.If you want to contribute to me having spare resources to pursue Mac development, please bring all the other Mac users to my Patreon page and chip in. :)

• This is very interesting. Please publish a Mac version.
George Kafkoulis | října 05, 2019

.

Steven Allen | prosince 29, 2019

Thank you for making this available. Great start. It would be very useful to add a value to adjust the number of point to be used. I am trying to graph a complex shape and it is working very well except there are not enough points to accurately represent the details of the computed shape. If you would be willing to share the source, I would be happy to help with some enhancements.

Alan McIntyre (Vydavatel) | února 25, 2020

Unfortunately at the moment I don't have the spare time to do a Mac version or to untangle the app's code from my private codebase that I use to support paid projects. You can help change that by supporting me on Patreon. ;)