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how to measure the area of a region, defined on a TIN Surface

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Message 1 of 11
Chiby
1187 Views, 10 Replies

how to measure the area of a region, defined on a TIN Surface

Hello to All,
I’d like to ask how I can measure the area of a region, defined on a TIN surface. ( i.e. the area of the bounded topographic terrain )

Thank you in advance!

Regards

Silvi

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10 REPLIES 10
Message 2 of 11
neilyj666
in reply to: Chiby

Either look at the Surface statistics (for the whole surface) or make a copy of the TIN surface and draw a polyline around the area of interest and add to the surface copy as Non destructive boundary then look at the Surface statistics.

In both cases you can view the 2D and 3D areas

neilyj (No connection with Autodesk other than using the products in the real world)
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Message 3 of 11
AllenJessup
in reply to: Chiby

Select the Surface, right click, select Surface Properties. On the Statistics tab expand Extended. You get 2D & 3D surface area.

 

sr1.PNG

 

Allen Jessup



Allen Jessup
Engineering Specialist / CAD Manager

Message 4 of 11
Chiby
in reply to: AllenJessup

Thank you for the answers,

but I would like to know whether the measured area is the area of the terrain, not the plane one bounded from the boundary in horizontal direction...

Thank you

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Message 5 of 11
AllenJessup
in reply to: Chiby


@Chiby wrote:

measured area is the area of the terrain, not the plane one bounded from the boundary in horizontal direction...

 


How are you seeing that as being different from the 3D area?
 

Allen



Allen Jessup
Engineering Specialist / CAD Manager

Message 6 of 11
neilyj666
in reply to: AllenJessup

The OP might have been confused by your screenshot as the 2D and 3D areas are identical...:)

neilyj (No connection with Autodesk other than using the products in the real world)
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AEC Collection 2024 UKIE (mainly Civil 3D UKIE and IW)
Win 11 Pro x64, 1Tb Primary SSD, 1Tb Secondary SSD
64Gb RAM Intel(R) Xeon(R) W-11855M CPU @ 3.2GHz
NVIDIA RTX A5000 16Gb, Dual 27" Monitor, Dell Inspiron 7760
Message 7 of 11
AllenJessup
in reply to: neilyj666

Not quite identical. But very close.

 

I didn't have a surface in the drawing I had open. So I just drew 2 3D polylines and created a surface using them as breaklines. There wasn't much of an elevation difference.

 

Allen



Allen Jessup
Engineering Specialist / CAD Manager

Message 8 of 11
neilyj666
in reply to: AllenJessup

Thought that's what you did.....here's one I'm working on...

 

2013-12-06 15_11_56-Surface Properties - _No Name Provided_.jpg

neilyj (No connection with Autodesk other than using the products in the real world)
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Win 11 Pro x64, 1Tb Primary SSD, 1Tb Secondary SSD
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Message 9 of 11
Chiby
in reply to: Chiby

Thank you again,

I just have done some examples and found out that this is exactly what I need... 🙂

Regards

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Message 10 of 11
Termonti
in reply to: Chiby

Hello there, 

 

I am tackling similar problem as the topic oroginator, hence my post here.

 

I have a project of the roundabout, in which I have created a surface. It contains pavement, footpaths, verges and earthworks. Everything within one corridor.

 

What I need to find is the area of the road only. Without footpaths, verges, ect.

 

Tho there is a function which I can use in Civil £d to obtain just an area of the road?

 

Regards

 

Dan

Message 11 of 11
neilyj666
in reply to: Termonti

This is a totally different problem - you'd be best creating a new topic for it

neilyj (No connection with Autodesk other than using the products in the real world)
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Win 11 Pro x64, 1Tb Primary SSD, 1Tb Secondary SSD
64Gb RAM Intel(R) Xeon(R) W-11855M CPU @ 3.2GHz
NVIDIA RTX A5000 16Gb, Dual 27" Monitor, Dell Inspiron 7760

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