[Plugin] Center of Gravity
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Thanks for the bug-report.
I suspect that this is a glitch in the way v2017 handles exploded entities.
I'll investigate and fix it... -
Here's v2.0 http://sketchucation.com/pluginstore?pln=CofG Its coding is now compatible with v2017 and it is also signed for use in v2016/v2017 in any loading-policy.
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Outstanding work TIG, thanks that was quick, I can confirm it works after the upgrade of the plug-in.
Cheers
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The plugin does not seem to be able to detect hollow spaces. Am I doing something wrong? I am trying to find the CoG of steel assemblies but when it calculates the weight, it includes the space between plates and gives me a number much higher than the actual weight.
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Your image attachment isn't showing.
An object needs to be a sensibly formed 'solid' - as reported in Entity Info.
Otherwise results can be flaky...
'Hollows' are accounted for, if it's a proper solid...If you attach your SKP we can look at it...
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Hello All, hello TIG,
I want to calculate the center of gravity of a small magnet, but the calculation always report volume = 0 and eventully weight = 0.The plugin works perfectly on my pc with larger objects, the density is 7.6 g/cm3, I'm a newbie with sketchup in general, I'm probably doing something wrong
Luca
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It must be a rounding issue.
The object looks like it has no volume to SketchUp, therefore no weight.I'll investigate...
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Yes, I see it.
It was never intended for such small objects.
It rounds to the nearest cu", so your small object appears to have no volume !
I'll look at a way of adjusting it... -
Wow, very interesting. Thank you very much!
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Here's v3.0 https://sketchucation.com/pluginstore?pln=CofG It now reports the Volume/Weight of very small objects with more dp etc...
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Thank you very much, I will use it tomorrow!
Luca
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It obviously works!!!
Thank you very much TIG, extremely useful plugin.
Luca
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Other little thing I can't understand.
The little magnets of my previous post goes attached to a wood base that according to sketchup is 4500 mm3, but calculated by CoG is 4000.
The volume of the magnet is ok regardless is far little than the wood base.
Bye,
Luca
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My feeling is that if the volume is only mantissa, ie 0.04555 cm3 works good, when volume is ie 4.75 cm3 decimal part is truncated.
Luca
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Must be a glitch somewhere in the 'rounding'...
I'll fix it... -
Here's v3.1 https://sketchucation.com/pluginstore?pln=CofG The rounding glitch on some small values is now fixed.
The Volume/Weight now shown with between 1dp and 4dp, suppressing trailing zeros beyond .0 as necessary. -
It works!
Thank you very much,
Luca -
Mine does not show up with the added component information. It just turnes the solid into a bunch of layers (horizontal lining). SU 8 Pro windows 7 64bit
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Version 8 is by now pretty much unsupported, but it should still work.
If you have the Ruby Console open what errors do you see when it fails ?
It's clearly doing its temporary slicing to get the centroid... but not completing...How big is this object ?
Can you upload the SKP you are having issues with...
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@tig said:
Version 8 is by now pretty much unsupported, but it should still work.
If you have the Ruby Console open what errors do you see when it fails ?
It's clearly doing its temporary slicing to get the centroid... but not completing...How big is this object ?
Can you upload the SKP you are having issues with...
TY for the quick response
So, the console shows in the attachment.
It initializes, goes through the steps, and gets to call.
Or looks like ruby reads up maybe idk
The skp is attached also
Thank you for helping! I notice the ruby icon is not right also, so is it possible it is a ruby issue with SU8 atm?
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