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Topic ClosedCompute the area of more selected surfaces
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delftse_student View Drop Down
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Joined: 24.Jun.2011
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Points: 8 		Direct Link To This Post Topic: Compute the area of more selected surfaces
    Posted: 24.Jun.2011 at 11:39
Hello everybody, 

I have a regional plan for an area (in dwg) and I need to compute the total area for housing, agriculture, industry, green open spaces etc.

I want to isolate the specific layer, select all the hatches and find the total area. 

But this is not possible in Autcad. So how can you do this? Is there any utility i can download for free and use it? 

I tried to find some answer on the forum but with no luck. 

Thanks a lot and appreciating

Cristian 
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delftse_student View Drop Down
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Points: 8 		Direct Link To This Post Posted: 24.Jun.2011 at 11:47
i rephrase a bit, if i select all the areas in autocad, in the properties panel it says that the area varies. 

C
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 24.Jun.2011 at 12:08
It sounds as though you would benefit from one of the many custom area lisp routines that are available here and at other AutoCAD help sites and at the website of Cadalyst magazine.  I'd suggest a search is in order.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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Vladimir Michl View Drop Down
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Joined: 26.Jul.2007
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Points: 2124 		Direct Link To This Post Posted: 24.Jun.2011 at 12:10
Try e.g. the SumaPloch utility at the Download page here. See the tip:
http://www.cadforum.cz/cadforum_en/compute-total-area-of-selected-objects-tip6574
Vladimir Michl (moderator)
ARKANCE - https://arkance.world - Autodesk Platinum Partner
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delftse_student View Drop Down
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Points: 8 		Direct Link To This Post Posted: 24.Jun.2011 at 12:15
Ok, cool thanks for the tip. But after i load it how does it work? 

If I invoke the lisp sumaploch and then select all the areas it says: error /  Automation error! 


Thanks, 
C


Edited by delftse_student - 24.Jun.2011 at 12:28
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philippe JOSEPH View Drop Down
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Points: 1495 		Direct Link To This Post Posted: 24.Jun.2011 at 12:37
Try to get the informations about the different selected areas with the command "massprop" ( if exists in your AUTOCAD 2010 ) instead of reading the informations in the properties pannel or with the command "list"
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 24.Jun.2011 at 12:48
You could try this lisp routine I found at Cadalyst magazine called Area-of-a-Hatch.

http://cadtips.cadalyst.com/hatch-data/determine-area-a-hatch
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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delftse_student View Drop Down
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Joined: 24.Jun.2011
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Points: 8 		Direct Link To This Post Posted: 24.Jun.2011 at 14:20
John I checked the link you gave me (http://cadtips.cadalyst.com/hatch-data/determine-area-a-hatch) and it's just a general comment about hatches, NO lisp to download and use. 

I am still looking for a solution to try to compute more hatches selected. I had tried several lisp but nothing seems working. 

SumaPloch also is not working. 
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 24.Jun.2011 at 14:36
Sorry about that.  99.99% of the time a free lisp routine is available not just a tip.  But, if you search that same site I'm sure you'll find something that works for you.  It is a good resource.

You can try the POLYAREA.lsp found here:

http://www.turvill.com/t2/free_stuff/index.htm


Edited by John Connor - 24.Jun.2011 at 14:44
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 24.Jun.2011 at 14:47
Another option. as suggested by Lynn Allen of AutoDesk.

Need to find the area of a hatch pattern?  Don't forget the age old LIST command - simply select the crosshatching and AutoCAD will list the total area. 

Last one.  See this thread found in the AUGI forum.  Pay particular attention to the lisp routines written by fixo.

http://www.augi.com/forums/showthread.php?s=cd9b682af4927d8de1dfe73c44bae094&t=23362


Edited by John Connor - 24.Jun.2011 at 14:51
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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