Fitting a 3d model into and site photo image.

[Ian Foster Griffith]

Hi All

Problem: In Walkabout I set a photo of a building site (elevation) using Background tab "Background image". Then try to use the controls in walkabout to match the view of my model.

Motion walkthrough - moves target location - using arrows and pageup/page/down.

So you get in/out left/right tiltup/tiltdown.

Motion Flyover - moves camera location - using arrows and pageup/page/down.

So you get in/out left/right tiltup/tiltdown.

So I play around with the view until it looks right. so it's perspective fit's the photo.

But here and problem - the model is not in the right location on background photo.

say it needs to go in the left hand corner.........................

Is there a way to move the view without changing it - up/down left/right to slot into the photo.

So what I'm asking is there controls to move the camera's target location and camera location at the same time???

any ideas?

[Miguel Tano Adanes]

Hi Ian. Camera match is one of the great issue which lacks a little bit in nXt. First of all, the camera should have the same focal lenght of the photo (generally, if the photo was taken with a digital camera, you can see the focal lenght in the properties of the jpeg file). Then, if the model is articulated or heavy, you could construct a very simple solid on a separeted layer, so that you can manage the walkabout views quite faster. If you need to move the camera location and target at the same time, the only method is going back to Acad and moving the camera directly.

[Roy Hirshkowitz]

Panning moves the both the target and camera points.  I believe you pan with the right mouse button.  I don't think there is a keyboard shortcut for this.

[Ian Foster Griffith]

Roy that little tip is gold mate, pure gold, ..................................

Big thanks

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(Keyboard shortcut would be cool say Ctrl+arrows would be a great addition to the walkthough)