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2005-07-25 12:08 PM

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Subject: Math Whizzes: Help!!!!

Ok, I don't have CAD or any other program (except for excel) and I need to match up and rotate some survey data. For example, I have two surveys of the same area, both in different coordinate systems. I have at least two matching benchmarks at far ends of the datasets.  

I can handle moving the survey data to match up, but don't really have to intellectual capacity to figure out an equation to rotate it. If you can help me come up with an equation, or lead me to some free software I can use, that'd be just awesome. Thanks!

P.S. Survey data is in Northing, Easting, Elev format.



Edited by kimj81 2005-07-25 12:16 PM


2005-07-25 12:22 PM
in reply to: #206423

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Subject: RE: Math Whizzes: Help!!!!

Kim:

If find the bearing between your two bench marks for each survey then you can take difference between the two angles and that would give you the angle you need to rotate it.  If you can't figure out the bearings PM with the North and Easts of each of the benchmarks and I'll get the bearings for you from CAD

Chris

2005-07-25 12:33 PM
in reply to: #206439

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Subject: RE: Math Whizzes: Help!!!!
cdf26.2 - 2005-07-25 10:22 AM

Kim:

If find the bearing between your two bench marks for each survey then you can take difference between the two angles and that would give you the angle you need to rotate it.  If you can't figure out the bearings PM with the North and Easts of each of the benchmarks and I'll get the bearings for you from CAD

Chris

Ok, I can get the difference in the bearings. But once I get that, is there an easy clean way to rotate everything without having to find every point's bearing? (big datasets involved here )

2005-07-25 12:41 PM
in reply to: #206452

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Subject: RE: Math Whizzes: Help!!!!

Oh and THANKS!!!!

2005-07-25 12:41 PM
in reply to: #206452

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Subject: RE: Math Whizzes: Help!!!!

Let me check with our surveyors, and I'll get back to you. (they are all out in the field at the moment).

Chris

2005-07-25 12:44 PM
in reply to: #206463

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Subject: RE: Math Whizzes: Help!!!!
cdf26.2 - 2005-07-25 10:41 AM

Let me check with our surveyors, and I'll get back to you. (they are all out in the field at the moment).

Chris

You rock... I'm leaving this job tomorrow and my boss really wants this done before tomorrow. :-P Thanks so much for your help.



2005-07-25 1:16 PM
in reply to: #206423

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Subject: RE: Math Whizzes: Help!!!!
huh?
2005-07-25 1:38 PM
in reply to: #206423

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Subject: RE: Math Whizzes: Help!!!!
2005-07-25 2:16 PM
in reply to: #206527

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Subject: RE: Math Whizzes: Help!!!!

huh?

WTF?

Thanks for your brilliant insight, boys!

2005-07-25 2:18 PM
in reply to: #206423

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Subject: RE: Math Whizzes: Help!!!!
Glad I could help.
p.s. I never got any of that fancy book-lernin'.
2005-07-25 3:50 PM
in reply to: #206423

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Subject: RE: Math Whizzes: Help!!!!

Kim: Our surveyors never came back into the office, hopefully they'll be in first thing in the morning, and I'll try to get an answer.  Sorry for the delay



2005-07-25 4:32 PM
in reply to: #206423

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Subject: RE: Math Whizzes: Help!!!!
Try http://www.autocad.com then select the product trail, fully functional 30day trial (streaming) If you have high-speed internet this will solve the immediate problem.

John

Edited by jchyte 2005-07-25 4:33 PM
2005-07-25 5:39 PM
in reply to: #206423

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Subject: RE: Math Whizzes: Help!!!!
kimj81 - 2005-07-25 11:08 AM

Ok, I don't have CAD or any other program (except for excel) and I need to match up and rotate some survey data. For example, I have two surveys of the same area, both in different coordinate systems. I have at least two matching benchmarks at far ends of the datasets.  

I can handle moving the survey data to match up, but don't really have to intellectual capacity to figure out an equation to rotate it. If you can help me come up with an equation, or lead me to some free software I can use, that'd be just awesome. Thanks!

P.S. Survey data is in Northing, Easting, Elev format.



Simple, the answer is: 42
2005-07-26 7:26 AM
in reply to: #206423

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Subject: RE: Math Whizzes: Help!!!!

Kim: Our surveyors said that really  the only way to do it, is to bring the data points into autocad, rotaate them, then get the data on teh new points back out.  Sorry I couldn't help you any more than that.

Chris

2005-07-26 9:40 AM
in reply to: #206850

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Subject: RE: Math Whizzes: Help!!!!
John, thanks, that'll do it. Chris, no worries. Thanks so much for trying so hard for me! I really appreciate it!
2005-07-26 9:42 AM
in reply to: #206423

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Subject: RE: Math Whizzes: Help!!!!

Oh, I thought you were calling for just plain Whizzers... My error. Carry on.

Whizzzzzzzzzzzzzz



2005-07-26 9:50 AM
in reply to: #207506

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Subject: RE: Math Whizzes: Help!!!!
Now I gotta figure out how to use AutoCAD, in about 15 minutes!!!! ACK! If anyone's really bored and wants to give me some tips, feel free.
2005-07-26 11:50 AM
in reply to: #206423


19

Subject: RE: Math Whizzes: Help!!!!
Do you have both sets loaded into AutoCAD already?

If so select all of one set, move the set of points using one of the benchmarks as your base so that it matches. Then rotate the set of points using the first benchmark as your pivot, matching the other benchmarks together.

Just try it out and remember you have an undo.
2005-07-26 11:51 AM
in reply to: #207689

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Subject: RE: Math Whizzes: Help!!!!

Dover97 - 2005-07-26 9:50 AM Do you have both sets loaded into AutoCAD already? If so select all of one set, move the set of points using one of the benchmarks as your base so that it matches. Then rotate the set of points using the first benchmark as your pivot, matching the other benchmarks together. Just try it out and remember you have an undo.

I've never used CAD before. I can't figure out how to get the sets even loaded. :-p I'm an idiot!

I have them in .txt files as #, northing, easting, elevation, code. I think it wants a .dwf.... right? 'Load markup set' is what I'm supposed to use?



Edited by kimj81 2005-07-26 11:54 AM
2005-07-26 11:55 AM
in reply to: #206423


19

Subject: RE: Math Whizzes: Help!!!!
try ,
2005-07-26 11:56 AM
in reply to: #206423


19

Subject: RE: Math Whizzes: Help!!!!
Sorry, that didn't show up.

try going to file, then Import. I would assume the trial version has this function.


2005-07-26 11:56 AM
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Subject: RE: Math Whizzes: Help!!!!

Dover97 - 2005-07-26 9:55 AM try ,

The suspense is killing me! LOL!

2005-07-26 11:58 AM
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Subject: RE: Math Whizzes: Help!!!!
There's an export. I don't see an import...
2005-07-26 12:00 PM
in reply to: #207701

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Subject: RE: Math Whizzes: Help!!!!
but I typed in import and it took that. Problem is it wants .wmf, .sat or .3ds files.
2005-07-26 12:01 PM
in reply to: #206423


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Subject: RE: Math Whizzes: Help!!!!
You could also try insert menu.
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