图形的交互式编辑部分主要研究了图元的拾取算法和使用变换矩阵实现对图元的旋转、比例缩放和平移等二维变换。

As for the interactive graphic editing, the article mainly focuses on graphic element collect algorithm and two-dimension transformation such as rotation, scale and translation using convert matrix.

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比例缩放，倾斜，旋转(SSR)。并且在等角平面上，你可以利用这个侧面视图计算出吉他琴身的厚度。

By taking the side view of the orthographic and scale, shear, rotate (SSR) it onto the Isometric plane you can figure out the thickness of the guitar body.

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当你要给对象定位时，你可以使用比例缩放，倾斜，旋转（SSR）。这是吉他底层的面。

Once you've chosen your orientation you can scale, shear, rotate (SSR), your bottom plane.

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