Apply a radius to sharp corners of a path. The extension is written for inkscape 1.0.1 (but also contains a backport for 0.92.4). Usage: The screenshot demonstrates the usage. In the upper half, a red path with 4 vertices is shown. We select two vertices: the top left and bottom left corner (shown in blue). Run "Rounded Corners" from "Extensions" -> "Modify Path". The result is the path below. (Viewed here in edit mode again to show all the new vertices.)
This Inkscape extension transforms an object along the x-axis. The bounding box remains unchanged. Points near the center of the object move to create the illusion of a curved surface. Points move left, if you choose an exponent > 1, and right if the exponent is < 1. An exponent of 1.0 does exactly nothing. This can be used in combination with the bend path effect to create a cone projection that retains aspect ratio. Idea from Simon Budig while preparing for the lampshade workshop.
Input filter for reading RD files, as generated by e.g. rdworks to drive RUIDA laser controllers.