How can I save and restore the camera?

[daiku]

I’d like to restore the current view in skecthup to the way it was before my extension moved the camera around. I naively thought that this would work:

model = Sketchup.active_model
view = model.active_view
save_cam = view.camera
# do some stuff the changes the view
model.active_view.camera = save_cam

But it does not restore the view. I find I have to save the individual values for the camera, like eye, target, up, fov, etc. What am I missing?

[dezmo]

@daiku

I find I have to save the individual values for the camera, like eye, target, up, fov, etc. What am I missing?

You are right, you need to save these values…
Check also e.g. this post:

Camera Object Cloning Issue - Same as new with no arguments

Because this is an very old known issue. (I myself reported it years ago, and it comes up several times each year.) Check the API methods index http://www.sketchup.com/intl/en/developer/docs/methods#index_c and you’ll see that the API only creates (overrides) 3 methods to safely clone API objects. Also, only Group has a copy() method that also has had some issues, like not copying attached attribute dictionaries. Using the standard Ruby clone() or dup() methods upon API objects is problema…

[daiku]

Excellent, thanks.

save_cam = Sketchup::Camera.new(cam.eye, cam.target, cam.up, cam.perspective?, cam.fov)

works perfectly.