Importing Image

Importing Image

Postby twharvey » Wed Apr 16, 2008 5:21 pm

Hi all,

I often need to build a Sandbox base for my models to compensate for the averaging in the terrain layer. Here's what I do: When I download a terrain from GE into SU to start a new model, I save a JPG of the scene from GE at the same time. Later when I build the Sandbox surface, I smooth it then import the JPG to paint it to match the surrounding terrain. The problem occurs when I try to match the I import the JPG image. It should match the Snapshot layer I already have, but it doesn't. When I turn off Perspective view in SU and swith to the top down view, the snapshot isn't square (rectangular) whereas the imported image is. I finally figured out the the plane of the imported image isn't parrellel to the plane of the Sanpshott.

This makes it nearly impossible to match the image to the sanpshot, a job that should be easy.

Is there an easy way to overcome this problem?
Thanks for your help,
Tom
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Re: Importing Image

Postby pmiller » Wed Apr 16, 2008 11:08 pm

Indeed the color images saved from GE are slightly askew from the B&W snapshotted from GE into SU. Easiest way to correct is to apply the color image to the flat view in SU, then use the texture position pins to distort to fit properly, then sample that image and apply to the terrain. There is a tutorial somewhere on this, but I can't remember where....
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Re: Importing Image

Postby twharvey » Thu Apr 17, 2008 2:51 pm

Thanks Paul.
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Tom

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Re: Importing Image

Postby TaffGoch » Thu Apr 17, 2008 4:57 pm

Tom,

I don't know if this is the tutorial, of which Paul was thinking...

http://sketchup.google.com/3dwarehouse/details?mid=7b8a0bd3d848e985e523d8740930d7f9

...but perhaps it will help, regardless.

The technique makes use of 'projected' texture, as described in the Google video tutorial #12, "Using images as signs," available here:

http://sketchup.google.com/gsu5vtvideos.html

Paul's reference, "...apply the color image to the flat view," is evident in both tutorials, and is the single textured plane where texture sizing, scaling, rotation and orientation is adjusted.

The texture is set (using the context menu) to be 'projected.' Then the eyedropper tool can be used to sample the 'flat' image, and the paintbucket used to apply (project) the texture image onto the undulating surface aligned underneath (make sure it's not a group, or enter/edit the group before painting.)

If, after reviewing the video and tutorial, it still doesn't make sense, let me know.

Regards,
Taff
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Re: Importing Image

Postby Gjenio » Thu Apr 17, 2008 6:33 pm

Probably the following question was already done somewhere in the forum...
but anyway I dare ask to you:
How can I import an image larger than 1024*1024 pixels? Is it possible?
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Re: Importing Image

Postby juju » Thu Apr 17, 2008 7:19 pm

IIRC it is a SketchUp limitation.
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Re: Importing Image

Postby remus » Thu Apr 17, 2008 7:21 pm

Eugenio, its sort of possible, but its a bit of a work around.

You basically have to chop up you picture in to bite sized chunks that SU can handle, then reassemble the pieces in SU.

I vaguely remember alan fraser syaing that google had released a reg edit (or something similar) that allowed windows versions of SU to import images up to 2048, if you ask him nicely he might be able to give you a copy of the file.
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Re: Importing Image

Postby pmiller » Fri Apr 18, 2008 2:16 am

Wouldn't it be nice if SU 7 would snapshot color terrain from GE? Plus a switch to turn on 2048 resolution for openGL rather than messing with registry?
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Re: Importing Image

Postby juju » Fri Apr 18, 2008 8:20 am

pmiller wrote:Plus a switch to turn on 2048 resolution for openGL rather than messing with registry?

Hear hear! Why are these little gems kept from us?
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