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Physics Mathematica Graphics and Visualization Wolfram Language Packages

Patch for Honan's GraphicsTools package?

Posted 9 years ago

This concerns Terry Honan's add-on packages `GraphicsTools` and `MechanicsTools: http://www.blinn.edu/brazos/natscience/phys/thonan/Mathematica/ The do not work properly now because they include definition of a function `Annulus` that is clashing with the function of the same name that's been built into Mathematica since version 10.2. For example, the function `Pulley` in the second of those add-ons calls `Annulus` and produces an error that the called `Annulus` expression is not a graphics primitive. Does anybody have a fix for this? It's not enough to delete the definition of `Annulus` in `GraphicsTools.m`, because various options are set for it in the packages.

POSTED BY: Murray Eisenberg

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Posted 9 years ago

Version 10.2 introduced the function Annulus. This was a welcome addition and replaced the need for my clunky Annulus function, which only created a polygon; having a primitive is far superior. The new syntax was slightly different than mine but the fix was trivial. I thought I had posted the update but apparently I hadn't. Sorry about that. The updated files (and other package) can be found at the link below. (Note that this may be a different link.) http://cit.blinn.edu/physics/Mathematica/index.html These packages, GraphicsTools and MechanicsTools, are simple packages, meaning that they evaluate functions without creating a context. Since these packages contain only stand-alone functions and no internal functions, I see no advantage to creating a package with context. My circuit drawing package, also at that download link, is a proper package with context.

POSTED BY: Terrence Honan

Posted 9 years ago

Thanks for the updated files. The two packages work perfectly now.

POSTED BY: Murray Eisenberg

Posted 9 years ago

CCing @Terrence Honan here so he will be aware of the issue.

POSTED BY: Sam Carrettie

Posted 9 years ago

In a reply that for reasons unknown is not appearing here, David Reiss asking whether renaming `Annulus` to something else in the package would fix things. Naturally, that's the first thing I tried, renaming the function `GTAnnulus`. And indeed an expression such as Graphics[GTAnnulus[{1, 1}, 2, 3]] works just fine. However, when the same, renamed, function `GTAnnulus` is called by the `MechanicsTools` function `Pulley`, I still get the error. (Yes, I did edit and save `MechanicsTools.m` so as to rename calls there to be to `GTAnnulus` rather than to the original `Annulus`) It may be that there's some deeper bug in the definition of `Pulley` there.