SVG converter

Converts SVG images into GPGL commands.

Supported features

The converter does not support the entire huge SVG specification, but only the most commonly used features.

Supported are:

• All shapes with all attributes adjusting the form of them
  • <rect> (x, y, width, height, rx, ry)
  • <line> (x1, y1, x2, y2)
  • <circle> (cx, cy, r)
  • <ellipse> (cx, cy, rx, ry)
  • <polygon> and <polyline> (points)
  • <path> (d)
• Tracing the outline of shapes
  • Active by default, can be disabled by setting stroke="none"
  • Dashed/dotted lines via stroke-dasharray
• Filling shapes with patterns defined in the same SVG
  • Patterns can use patterns themselves
• Layout features
  • Grouping shapes with <g> elements
    • <g> elements can currently only be used for layout, not for setting other attributes for multiple shapes
  • transform attribute
  • All layout attributes on <svg> elements (x, y, width, height, viewBox, preserveAspectRatio)
  • All layout attributes on <pattern> elements (x, y, width, height, viewBox, preserveAspectRatio, patternUnits, patternContentUnits)
  • Nesting <svg> elements

Setup

Required dependencies are Boost, Eigen3, LibXml2, spdlog, SVG++ and Clipper. The latter two are included in the repository. For compilation, CMake >= 3.7 and a modern C++14 compiler (GCC >= 5.0 or equivalent) is required.

To build:

• Clone repo including submodules: git clone --recursive ...
• Create a build folder: mkdir build
• Enter it: cd build
• Run cmake to create makefiles (this is for a release build): cmake -DCMAKE_BUILD_TYPE=Release ..
• Build the converter: make svg_converter

Docker container

Compiling the converter is straightforward on Linux and macOS, but may be a bit more involved on Windows. To make quick testing or conversion of SVG images easier, this repository also contains a Docker container. For more details see the Readme in the docker directory.