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So I want to draw a line of pseudo-3D boxes with a changing amount of "segments" of constant width (e.g. a box of 3 segments of 60p width, 180p in all, and one of 6 segments of 60p width, 360p in all). The depth of the boxes should be the same, so they align nicely.

Failed example (I want the z-angles of the boxes to be parallel, so I can string up any amount of these boxes in a row without it looking odd): These boxes should have the same angle, so they look as if they're in a row

So far, I can only manage something like this, and my attempts to correct the viewing angle distort more than help.

To be honest, I've colored the first 3D-box and copied the others from it to save me the hassle of deleting unused areas and re-coloring each time, so perhaps the answer is "Use independent boxes and adjust the vanishing points manually", but if there's a way to set the angle between to adjacent segments of a path, it would be a lot more comfortable. Does this exist? Alternatively, am I missing an obvious other way to achieve what I want?

  • I am having some trouble understanding what your problem is? Do you want the two big boxes you are showing to have the same perspective? Wild guess: Try moving a 3D box in 3D-box mode. – Wrzlprmft May 15 '15 at 19:23
  • Hey Gecko,, welcome to GDSE and thanks for your question. If you want to know more about the site, please see the help center or ping one of us in Graphic Design Chat once your reputation is sufficient (20). Keep contributing and enjoy the site! – Zach Saucier May 15 '15 at 19:52
  • I think you may be looking for some sort of pseudo-3D feature to calculate vanishing points automatically and allow their adjustment. I don't think that's possible in Inkscape. Illustrator's perspective grids may work.. but that's Illustrator. – Scott May 15 '15 at 23:53
  • If @Scott is correct then you might want to look at this tutorial for making a perspective grid in Inkscape: goinkscape.com/how-to-create-3d-perspective-grids-in-inkscape – Ryan May 16 '15 at 8:37
  • @Ryan That is pretty cool, and I'd mark it as an answer. My basic idea was to just set the angle manually, using the paths, and some yet-to-be-found-by-me textbox that lets me enter an angle between two path segments. – GeckoGeorge May 17 '15 at 14:13
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The z angle of the boxes won't be parallel because the back face is not the same size as the front face. What you are essentially making is a perspective drawing, and parallel lines in perspective don't stay parallel. You can move the endpoints with the edit paths tool. Select all paths using the shift key then click and drag to select the nodes you want. With those nodes selected, click and drag one to move them. Edit Paths Tool

You can also go the menu object>transform. Under the rotate tab you can type in values to rotate. If you want to rotate from an endpoint turn on snap to cusp node, then select the path, click the path again to change the transforms to rotate and shear, then move the center of rotation to an end point. Move Center of Rotation

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