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Old 06-09-2010, 05:33 PM   #1 (permalink)
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Default Google Earth and Scale

I am a newby and my search of previous posts has not completely answered my question.

I want to model the old Athens Hellenikon Airport (LGAT) and I have found (through the "way back" feature) a great image of the airport circa 2001, after it was no longer used and before the Olympic venues were built.

So my question is: how do I scale the map to 1:400? There is a scale in the bottom left, but as I move across the map, it changes. My monitor is large and so the entire "map scale" is about 7.5 inches long and the middle indicator is about 3.75 inches. I figured for a 1:400 scale that I should set the middle of the map scale at 116 feet, (so 116 feet = 3.75 inches). Is this about right?

Next challenge: when I save a copy a part of the image as a .pdf it changes the size of the objects in the image. How do I get them back to 1:400?

Sorry if the answer is obvious to some of you, I appreciate your advice. Thanks in advance.

Argonaut
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Old 06-09-2010, 05:39 PM   #2 (permalink)
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Default Re: Google Earth and Scale

my 2cents:
why not to take the pict of the whole airport and then you cut in pieces? then if you use some program can resize correctly your pictures.

...I hope it is clear?!
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Old 06-09-2010, 05:41 PM   #3 (permalink)
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Default Re: Google Earth and Scale

Argonaut, sounds like an ambitious project! Hopefully you can complete it and post some pics when done.

Scale is easy: measure the distance in feet using the measuring tool, times it by 12 to get total inches, and divide by 400. It's exact science.

If all else fails, ghetto scale by finding a plane on the topdown photo, measure it's wingspan, and see how many wingspans it takes to create one side...i.e. "The building is 4 1/3 727 wingspans."

But try the first one, EASY, EASY, EASY.

Good luck!


**Edit** it helps to actually READ THE ENTIRE post. Doh! I see what you're trying to do, and I have no idea. One of the other nerds on here will though.

Last edited by dylan; 06-09-2010 at 05:45 PM.
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Old 06-09-2010, 05:43 PM   #4 (permalink)
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Default Re: Google Earth and Scale

to scale, the easiest way I think is:
on GE measure how long it´s the terminal.
if it´s 100m, than you divide 10000cm by 400.
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Old 06-09-2010, 05:48 PM   #5 (permalink)
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Default Re: Google Earth and Scale

Quote:
Originally Posted by AirLife View Post
my 2cents:
why not to take the pict of the whole airport and then you cut in pieces? then if you use some program can resize correctly your pictures.

...I hope it is clear?!
Airlife:

What program would I use to cut the image in pieces and how do I resize it once I do to print the individual sheets at 1:400? I am sure this question is so simple, but I just can't figure out how to take the image on my screen and turn it into photo paper at the same size.

I am not too familiar with photoshop, but I will learn how. BTW, I am in a mac environment if that matters...

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Old 06-09-2010, 05:52 PM   #6 (permalink)
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Default Re: Google Earth and Scale

I did not try it, but I think it could work.
I would use powerpoint... it´s damn easy hehe
but firsst you have to compress the picture (microsoft office picture manager).
that´s the newbbie way

1: compress
2a: open powerpoint
2b: upload the pict
3: crop the first piece
4: repeat from 2b for another piece
5: so on until it´s done

I know this is very very very rudimentary!
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Old 06-09-2010, 08:10 PM   #7 (permalink)
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Default Re: Google Earth and Scale

Thank you--rudimentary is a good place for me to start.

Quote:
Originally Posted by AirLife View Post
I did not try it, but I think it could work.
I would use powerpoint... it´s damn easy hehe
but firsst you have to compress the picture (microsoft office picture manager).
that´s the newbbie way

1: compress
2a: open powerpoint
2b: upload the pict
3: crop the first piece
4: repeat from 2b for another piece
5: so on until it´s done

I know this is very very very rudimentary!
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Old 06-10-2010, 12:06 AM   #8 (permalink)
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Default Re: Google Earth and Scale

I tried doing this before with the Dubai airport.

It was very challenging, and my mind bled with too much thinking.

It never materialized because i got exhausted. hahaha

I hope you'll do better than I did. Keep the inspiration there.
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Old 06-10-2010, 12:08 AM   #9 (permalink)
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Default Re: Google Earth and Scale

there is also a program called picture merge genius if all your files are in the same width its easy to use
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Old 06-10-2010, 02:34 AM   #10 (permalink)
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Default Re: Google Earth and Scale

Quote:
Originally Posted by Pendulum19 View Post
I tried doing this before with the Dubai airport.

It was very challenging, and my mind bled with too much thinking.

It never materialized because i got exhausted. hahaha

I hope you'll do better than I did. Keep the inspiration there.
I´ve done something like that for some slides / presentations, not for diorama and it worked quite well.
if you are a beginner and if you know how to use power point it works pretty well. I know there are 1000 betterer ways.. it just dependes by the programs you can use and your skills!
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Old 07-03-2010, 07:41 AM   #11 (permalink)
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Default Re: Google Earth and Scale

The problem is that not all the Google earth pics are taken at the exact same hight. That means that it might look strange if you print them. I use to print as pdf and print later.

//Antesyd
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Old 07-22-2010, 11:50 PM   #12 (permalink)
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Default Re: Google Earth and Scale

I have thought of this also. What I have done (though im sure its not accurate!!) Is flind a certain type of Aircraft (A319) and taken my Nk A319 and placed it over another NK A319 at FLL until they matched up on the screen to try to get the scale.

I know this is lazy but has anyone else tried this method and had any successful results?
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Old 07-23-2010, 02:21 AM   #13 (permalink)
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Default Re: Google Earth and Scale

Hi,

I used that method and it worked pretty good just get a model plane and see on google map and try to make it the same size. i did this for las vegas airport in the 1:500 scale and i'm still working on the airport foil but it starts to look great. ;-)
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