Define angles of parallel projection view?

Hello Group!

Is there a way to exactly define the angles of parallel projection view? I need to build something for an isometric pixel environment and would love to set the proper angles somewhere ...

Thanks!

When you're in 'parallel projection' camera view, and select the 'Iso'view, you will be in the isometric mode (all 3 axes at 60° to each other.)

What exactly are you trying to change? If you change the angles from 60°, then you're no longer in true isometric mode (as that is the angular definition of isometric.)

Regards,

Taff

the iso view is nearly perfect but the camera is pointing too much tothe bottom. I'd like to have the cam at the following angles (x -30) (y 45) (z 00) ((which do the job in Maya for example)).

The resulting orthogonal view should be like on these images:

http://www.rhysd.com/tutorial/chapter2.html

http://hello.eboy.com/eboy/wp-content/uploads/2007/11/cca-creationluanda-11t.png

Thanks! c6y

If you want different angles, then it's not isometric. It looks likeyou're after 'diametric' projection, not 'isometric.' See description

under 'Blurring the Definition' on this page:

http://en.wikipedia.org/wiki/Isometric_projection

The 45° angle, to which you refer, is depicted in the right-hand column of the article, near the bottom.

____________

Now that the confusion is sorted out, how can you achieve diametric projection in SketchUp?

The same question was discussed this past August. A model was posted in the 3D Warehouse to demonstrate one method for generating the diametric viewing angle:

https://3dwarehouse.sketchup.com/model.html?id=9b7a3dbc2ad20bbd24180104c7fdcd27

Note that, as long as you don't change the viewing angle by orbiting,you can use the pan and zoom tools to size and position the model view for printing or export. If you want to view from one of the other three 'corner' directions, you can produce additional alignment targets, one for each direction.

Regards,

Taff

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SketchUp 6.0.515(free) / Windows XP

Isometric is a view in which each of the three axes is inclined to theviewing plane by the same angle. The same foreshortened scale can be used to measure distances parallel to any of the axes, hence the term "isometric," meaning "same scale." A Dimetric view has two axes inclined to the viewing plane at the same angle and the third axis at a different angle, hence the term "dimetric," meaning "two scales." A trimteric has each axis inclined at a different angle, hence the term "trimetric," meaning three scales.

To achieve an isometric view, the camera has to be rotated twice from a standard orthographic front view: 45 degrees around the z axis and 35.264 degrees above the horizontal. See the illustration of these rotations in this wikipedia article: http://en.wikipedia.org/wiki/Isometric_projection.

The following tutorial shows one method for positioning the camera in SU to this viewing angle in Steps 5 through 7:

https://3dwarehouse.sketchup.com/model.html?id=ef018980ef03616f48a263e43962eb7

-Gully

c6y,

After visiting your website (http://hello.eboy.com/eboy/index.php), I can see why you were interested in the diametric viewing angle!

I hope that our assistance helps to successfully integrate SketchUp into your artwork production.

Regards,

Taff

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SketchUp 6.0.515(free) / Windows XP / nVIDIA Quadro FX 1500M

On Nov 1, 4:30 pm, c6y wrote:

>Thanks Taff, that was a huge help!!!