Golden Spiral.

[quick61]

Anyone know if there are any provisions in OCE/OCCT to construct a golden spiral? FreeCAD easily does linear spirals, but can that be set up to do a spiral based on the golden ratio? Nothing important, just curious. I know OpenSCAD can do it, and is used to create nautilus shells for 3D printing and such.

Mark

OS: Kubuntu 14.04.4 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.6703 (Git)
Build type: Release
Branch: releases/FreeCAD-0-16
Hash: 2ce5c8d2e3020d05005ed71f710e09e9aa561f40
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.18-dev

and

OS: Kubuntu 14.04.4 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.7989 (Git)
Build type: Release
Branch: master
Hash: 8051d32adc646a1580d43a38253fd5eddb3932e6
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17

[DeepSOIC]

I think what you ask for is called "logarithmic spiral", and a golden spiral is just a specific instance of it.

Macros can do it. Not sure about if OCC itself offers it...

[quick61]

I think what you ask for is called "logarithmic spiral", and a golden spiral is just a specific instance of it.

Macros can do it. Not sure about if OCC itself offers it...

Thanks for the info. I'v seen the Macros. They will probably do.

Mark

[mario52]

hi
see the old post Logarithmic Spiral



mario