If the version of python used by Inkscape doesn't satisfy the requirement, the interpreter can be changed by following these instructions. In addition, this extension also requires the following programs, but they are usually already installed with Inkscape: You can do it in 2 scales or combine them in 1 scale.The extension was not tested with older versions of Inkscape. (in this case, the center of our canvas). The most obvious solution is to move the point of reflection to the central point of the image (250,250).
The reason, is that the default point of reflection (the so-called "transform-origin") for our transform is not in the center of our image, but is actually still at the (0,0) point. However, our pinguin just dissappears when we try that. Now, if we want to mirror our pinguin horizontally (switching left and right) it is tempting to just use a transform with scale(-1 1). If the canvas is size 500x500, and if Tux has a size of 100x100 we have to position him at (200,200). For the sake of this exercise I painted the letters "L" and "R" on his feet.įor starters, let's paint Tux in the center of our canvas. So to flip horizontally, we prepend: translate(200,0) scale(-1, 1) Or if you have the centre you can use translate(,0) scale(-1, 1) // for flip X Then prepend the following to its transform: translate(,0) scale(-1, 1) // for flip X First determine its bounding box (minX, minY, maxX, maxY), or centreX,centreY if you already know that instead. To flip (in position) an already existing object that is somewhere on screen. Here is a demo showing vertical flip, horizontal flip and both flips (option 2) Or, you can shift it positive (by the scaled size) afterwards: (The translate is listed second here because transform lists are effectively applied right to left)
(option 1) Shift it negative before the flip (so it gets flipped back on screen): Īnd to correct the movement off-screen, you can either.
So, for example, imagine we had a document that is 100×100. You need to correct this by adding a translate as well. Of course, the issue you have with negative scales is that the objects get flipped across the origin (top left) of the SVG, so they can go off the edge of the document. Or simply combine the values: transform="scale(-2,2)" To apply both scale and flip, just list both in your transform: transform="scale(2,2) scale(-1,1)"
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