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Adding a photo background in sketchup

C

corkyo4

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unitedkingdom
The other day i was trying to load an aerial photo in to sketchup to allow me to trace various aspects of an airfield.

Initialy i did this through aligning the image with elements of a google earth background, streatching and rotating as necessary. This was all completed by eye.

Since SBX gives positioning coordinates i thought i could draw these in SKP and the stretch my background photo from SBX to fit the area i had drawn. Unfortunately i cant find a way to draw to coordinates (althought SKP must use them somehow since you can export a KMZ file)

As an alternative option i drew the coordinates in AutoCAD (having converted them to a decimal) - this is where further confusion starts - when i drew the coordinate positions the area defined was so narrow it didnt seem to fit the area i had defined in SBX, i double checked everything but my numbers all seem to tally in SBX and ADE, so im a little confused as to why AutoCAD plots them differently.

Anyway i was going to convert from AutoCAD into SKP to solve my earlier problem which is being able to draw to coordinates in SKP.

Anyone else have a solution?

Thanks

Tom
 
corkyo4 said:
As an alternative option i drew the coordinates in AutoCAD (having converted them to a decimal) - this is where further confusion starts - when i drew the coordinate positions the area defined was so narrow it didnt seem to fit the area i had defined in SBX, i double checked everything but my numbers all seem to tally in SBX and ADE, so im a little confused as to why AutoCAD plots them differently.
Click to expand...

Autocad works in rectilinear coordinates, so in high latitudes the longitudinal scale will be reduced.

Just think of a "rectangle" at (N89, E0) to (N90, E10), (N90, E0) is exactly the same point as (N90, E10)
 
tgibson said:
A free addon to Sketchup allows you to place a polygon to specific Lat and Lon coordinates:

http://sketchup.engineeringtoolbox.com/latitude-longitude-c_73.html

Hope this helps,
Click to expand...

Fantastic thanks!!

Golf-HotelDelta said:
Autocad works in rectilinear coordinates, so in high latitudes the longitudinal scale will be reduced.

Just think of a "rectangle" at (N89, E0) to (N90, E10), (N90, E0) is exactly the same point as (N90, E10)
Click to expand...

Well in all the years i have been using AutoCAD i never knew that.

Tom
 
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