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    Transformation Matrices, Wt and the Homogeneous Mystery

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    • M Offline
      MartinRinehart
      last edited by

      There are four Transformation.scaling() methods. Two of them set a global scale. The inverse of the global scale is placed in TransformationMatrix[15].

      If you have not looked, scaling through the Scale Tool is quite limited compared to what you can do with Transformation.scaling().

      Author, Edges to Rubies - The Complete SketchUp Tutorial at http://www.MartinRinehart.com/models/tutorial.

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      • Chris FullmerC Offline
        Chris Fullmer
        last edited by

        You can also use the transformation matrix to skew components, which is a transformation where the axis is changed to not be 90degrees from red to blue to green. A cube becomes a rhomboid, for example. This is not part of the scaling method, but requires manipulation of the 16 element transformation matrix.

        Lately you've been tan, suspicious for the winter.
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        • M Offline
          MartinRinehart
          last edited by

          @chris fullmer said:

          You can also use the transformation matrix to skew components

          I've bookmarked a "how-to-skew" site, but I've not found the practical application yet. Have you?

          Author, Edges to Rubies - The Complete SketchUp Tutorial at http://www.MartinRinehart.com/models/tutorial.

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          • thomthomT Offline
            thomthom
            last edited by

            Components/groups end up skewed if you got them nested a couple of times inside non.uniformly scaled parents.

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