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area command

6 REPLIES 6
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Message 1 of 7
wbrustle
1369 Views, 6 Replies

area command

I was just wondering why when I try and calculate an area using a polyine, I am getting a readout of 1.80401967E+07, when I have it set to give me the calculation in square feet? It is an area of approx. 246 Acres.....is this because the area is so large? I am not sure what the "E" stands for or the "+07" at the end..............thanks

6 REPLIES 6
Message 2 of 7
Joe-Bouza
in reply to: wbrustle

the E stands for exponent that number is 1.80101967 x 10 ^7 -  divided by 43560 is 413 acres

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 3 of 7
wbrustle
in reply to: Joe-Bouza

ok......can you explain more how you got the 413 acres. Maybe you could type out how you used the exponent (multplied it)....thanks

Message 4 of 7
rkmcswain
in reply to: wbrustle

Set LUPREC to a lower value (try 2), then run your Area calc again.

I suspect LUPREC is currently set to 8, and AutoCAD will only show you ±15 number of places in number. So by reducing the precision on the back end of the decimal point, you will be able to see the full number on the front side of the decimal point.

 

Below is an example. Same polyline.

 

LUPREC.PNG

R.K. McSwain     | CADpanacea | on twitter
Message 5 of 7
wbrustle
in reply to: rkmcswain

thank you so much!!! setting that variable to "2" solved my problem

Message 6 of 7
ericcollins6932
in reply to: wbrustle

An acre is one chain by 10 chains, where 1 mile = 80 chains. So 1 chain by 1/8 of a mile.

1 chain = 66 feet.

66' * 660' = 43560 sq. ft = 1 acre.

 

Eric Collins, P.Tech.(Eng.)

Win 10
Intel i7 9700 @ 3 GHz
16 GB RAM
Civil 3D 2019
Message 7 of 7
wfberry
in reply to: wbrustle

Just move your decimal 7 places to the right and you have square feet.

 

Bill

 

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