Hi everyone ! I’m a student in archaeology and I need to use Sketchup for my final work at school. I make a 3D reconstitution of an old egyptian village. So I’ve used photogrammetry and I’ve imported the model (.obj) on Sketchup (see screenshot). Now I need too make the walls just like on the model. But I just can’t make a face because I think my points are not on the same plan. So I draw the lines but it doesn’t work. Can anyone help me? Thank you in advance !
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To get you concise useful advice we really need to examine the file. Is that something you can share? If so drag and drop it into your reply window or use the upload button to post it here.
https://we.tl/t-klAbd7HYdR Here is the link for my file. Thank you !
Whoa there cowboy! 668MB is a bit bigger than I care to download right now. That is an enormous Sketchup file, it must be very detailed. It is likely you will need to simplify this file to work with it efficiently. It will be hard to work with because the computer will run slowly, but also this big a file implies a lot of individual faces, perhaps created originally from a point cloud, and therefor there are not likely to contain many flat surfaces that lend themselves to easily push/pulling into a 3D shape.
What is the 3D data that is already there, do you need to keep that or start over?
Yes I know… I use the 3D data to make the same but with Sketchup.
Here is the link for the original 3D data (smaller): https://we.tl/t-61qgCJ7wyS
Pretty ambitious for being new SketchUp user. Good for you.
The way I’d approach this is to firstly, assign your 3D photogrammetry scan to it’s own ‘Tag’ so that you can turn it off when not needed. It’s a big file and will slow you down.
Next, when I have 3D terrain and 2D site plan information, I like to work above my 3D terrain. Here I copied the plan up so it sits above the site.
Then you just need to trace your walls over your 2D Plan. Keep in mind where your grade breaks or transitions might occur. Here I changed my edge style to something other than black so it’s easier to see. You can also set your face style to ‘X-RAY’ mode so you can still see your plan under the new faces that are created once your edges form a closed boundary.
Once you have some walls drawn in 2D, you can just start extruding. One option is to drop or moved them down into place on top of your 3D terrain or you can extrude everything and then adjust heights accordingly.
File with some walls drawn in and terrain removed for example: Essai 1_example.skp (126.6 KB)
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Thank you very much for this answer, it gonna help me ! 
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No problem and goodd luck. Let us know how it turns out!
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Wow they really used the space! Where is this? A farming village? Near the River?
This a village in Egypt, near Luxor. The Tomb’s workers
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