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re: Circular Sector Area
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* September 20, 2013, 06:39:57 AM
TC18pro:  This should be an easy one.  I want to create a circular sector and get the area of it; See attached.  First try:  I tried to slice a 2D circle.  No could do.  2) I made a circle, then a box.  I subtracted the box from the circle and got a circular sector.  But it was a "Region" and it had no metrics, like area.  3) The same by using the 2D intersection of a box & circle; it created a 'Region'.  I can't get an area from a region.  So how do I do this?  Create a circular sector, and get an area?  Thanks, Roger

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September 20, 2013, 07:04:13 AM
#1
Roger

Explode once should take it back to Polyline/s/Circles/Curves etc.


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Daz…

V2019 Plat 64bit, Lenovo P72 Laptop, Window 10 Pro for Workstations, Intel Xeon E-2186 CPU @ 2.90 Ghz (6 cores/12 threads), 32GB RAM, 512GB & 1TB SSD's, Nvidia P5200 c/w Max=Q Design GPU, Display UHD 3840 x 2160 pixels
TurboCAD user since V3 and Turbocad 3D V1.


* September 20, 2013, 07:07:40 AM
#2
Thanks Darrel.  I Exploded it, then joined polylines & got the area.  Roger

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* September 20, 2013, 07:23:30 AM
#3
You could use the Area measurement tool, but it isn't very intuitive.

Activate the Area tool
Use the Intersect snap (I) on the 2 places where the line and circle meet.
Now use the "B" key to activate "By Entity" and click on part of the circle.
That arc section will turn magenta.
Intersect snap back at the beginning.
This should fill in that area and give you the Area measurement.

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John R.

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* September 20, 2013, 08:18:50 AM
#4
Thanks John.  That works too.  Roger

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* September 20, 2013, 03:57:13 PM
#5
TC18pro:  This should be an easy one.  I want to create a circular sector and get the area of it; See attached.  First try:  I tried to slice a 2D circle.  No could do.  2) I made a circle, then a box.  I subtracted the box from the circle and got a circular sector.  But it was a "Region" and it had no metrics, like area.  3) The same by using the 2D intersection of a box & circle; it created a 'Region'.  I can't get an area from a region.  So how do I do this?  Create a circular sector, and get an area?  Thanks, Roger

Hi Roger.
Use the 2d geometric parameter tool. You don't have to trim or subtract anything.
> draw a circle
> create you sector with any type of line,etc..
> use the 2d geometric parameter with “by closed area”.
> click in the area you want to analyze.
see attachment.

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* September 23, 2013, 05:11:53 AM
#6
Thanks Dean.  That works as well!  Probably the preferred method, because then you don't have to create a separate entity.  Roger

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