Looking for dimensioning arcs, arched lines
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I couldn't find a tool for dimensioning arcs, arched lines.
Someone, pls help! -
what do you mean? if you just want the radius/diameter then you just need ot use the dimensioning tool thats part of the standard SU tool set, or perhaps your looking for something different?
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sityu, welcome.
If you are just wanting to dimension the radius of an arc created in SketchUp then select the dimension tool and select the arc.
If you are looking to dimension an arc that was imported from a cad file, you are out of luck. Best bet to draw a new arc over top so you can get your Radius dimension. Even using the weld script does not yield the radius information.
Now if you are looking to get the arc length (like in Autocad)...
...this is not supported in SU. However I am not sure if a Ruby can be written (or has already been written) to do this.I hope this helps.
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I was inaccurate: of course I am looking for the length dimensioning of arcs. (it is much easier to find the radius/diameter dimensioning in the help of su or even to find out the feature in su than posting a topic here).
I did a search on the theme here, but I failed.
I'am sure that it can be written (far more difficult problems have been solved, yet - but I'm not familiar with ruby, and unfortunately now I don't have time to learn it).
So the feature request is still on. -
Hi Sityu,
You can use the text tool (applied on any arc) and the default text will be its length. I don't know however if it is counted from exact geometry or just added up of the lenths of the segments of the arc.
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@gaieus said:
Hi Sityu,
You can use the text tool (applied on any arc) and the default text will be its length. I don't know however if it is counted from exact geometry or just added up of the lenths of the segments of the arc.
The length displayed in 'Entity Info' or by applying the 'Text' tool will be the arcs length, not the total segment length. (Unless exploded into segments)
'Weld' does not reverse this for the length information for a curve will be the sum of the segment lengths. -
@wo3dan said:
...'Weld' does not reverse this for the length information for a curve will be the sum of the segment lengths.
Quite understandable - how on earth could a ruby script know that we want to create and arc and not just a polyline.
Thanks Wodan for clarifying this (I was obviously too lazy to check it out myself)
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"Quite understandable - how on earth could a ruby script know that we want to create and arc and not just a polyline."
Which gets me back to my back to a script request made earlier.
http://www.sketchucation.com/forums/scf/viewtopic.php?f=57&t=5836&p=34032#p34032If there are a series of contiguous segments which are equal in length and their common angles are equal, then it has all the characteristics of an arc or a circle (sum of common angles = 360Ā°). You would think there would be a way to "regenerate" SU's arc or circle.
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@jclements said:
......If there are a series of contiguous segments which are equal in length and their common angles are equal, then it has all the characteristics of an arc or a circle (sum of common angles = 360Ā°). You would think there would be a way to "regenerate" SU's arc or circle.
JClements,
In case of retrieving the arcs information:
What you need is the centre of the āarc to beā which is easy to reconstruct.
(intersection of two lines perpendicular to two segments (not to close))
Also an even number of segments in the āarc to beā. When you are one segment short youāll need to rotate/copy one accurately as an extension to get the even number. Input that number as xs (= number of sides) when you now apply the arc tool on the āarc to beā. The result is an arc nicely replacing all the separate segments.
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