Camera Matching

Rendermedia · August 6th, 2007

Hi All,

I am working on a Verified View for a client, the client has provided me with 4 camera positions such as X,Y & Z values,

The problem I have is that when placing these into my scene the cameras do not match up with the development (which I am led to believe is in the correct space XYZ) the figures from my client for 1 camera is as follows

Short Range B - x624523 y234274 z23.6mAOD

however if I select the bottom corner of a building near this camera I have a value of

x1364.323 y3736.223 z23.25
there is no decimal point in the camera values my client gave and I would not expect one as they are using Topographical data and not Max, however these values which i am told are correct are too long at 6 digits, sorry to give you a Vulcan mind meld so early on a Monday morning.

Kind Regards
Mark

colinsmith · August 6th, 2007

Sounds like the CAD survey is on it's own grid, the co-ordinates from the client sound like national grid numbers, while the development ones are not.

Maybe see if the surveyor can give you national grid cooridnates for his stations? Otherwise I would guess you are looking at pulling grids from OS maps for a few building corners (survey grid might be rotated too) and fitting as best you can.

August 6th, 2007	#1 (permalink)
Rendermedia Member Join Date: Jul 2006 Location: Swindon Age: 34 Posts: 42 Name: Mark Miles	Camera Matching Hi All, I am working on a Verified View for a client, the client has provided me with 4 camera positions such as X,Y & Z values, The problem I have is that when placing these into my scene the cameras do not match up with the development (which I am led to believe is in the correct space XYZ) the figures from my client for 1 camera is as follows Short Range B - x624523 y234274 z23.6mAOD however if I select the bottom corner of a building near this camera I have a value of x1364.323 y3736.223 z23.25 there is no decimal point in the camera values my client gave and I would not expect one as they are using Topographical data and not Max, however these values which i am told are correct are too long at 6 digits, sorry to give you a Vulcan mind meld so early on a Monday morning. Kind Regards Mark

August 6th, 2007	#2 (permalink)
colinsmith Member Join Date: Aug 2004 Location: Shetland Age: 38 Posts: 59 Name: Colin Smith	Re: Camera Matching Sounds like the CAD survey is on it's own grid, the co-ordinates from the client sound like national grid numbers, while the development ones are not. Maybe see if the surveyor can give you national grid cooridnates for his stations? Otherwise I would guess you are looking at pulling grids from OS maps for a few building corners (survey grid might be rotated too) and fitting as best you can.

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