geop-lib-sheet

This page is a reference to the crate; drawings are taught in Lecture 35.

Files of paper — drawings, flat patterns — are laid out on a Sheet: plain 2-D strokes and labels in millimetres with y up, each on a Layer defined by who draws on it, and written in a Format, SVG (to_svg) or DXF (to_dxf). The kernel’s curves become lines, arcs and circles where they are those exactly, and polylines through points of them otherwise.

Drawings (geop-ops-drawing) and flat patterns (geop-ops-sheetmetal) are written on it. xml_escape makes text fit for XML, for SVG sheets and any other XML a writer makes (a URDF robot).