void IsometricGridDot::SaveSVG()

in IsometricPatternMatcher/IsometricPattern.cpp [233:284]

• 49 lines of code
• 8 McCabe index (conditional complexity)

void IsometricGridDot::SaveSVG(
    const std::string& filename, const std::string& color0,
    const std::string& color1, const std::string& bgcolor,
    int patternGroupIndex)  // patternGroupIndex only for testing
    const {
  std::ofstream f(filename.c_str());
  const Eigen::MatrixXi& M = patternGroup_[patternGroupIndex];
  const double offsetInMm = horizontalSpacing_ * 1000;  // meters to millimeters
  f << "<?xml version=\"1.0\" standalone=\"no\"?>" << std::endl
    << "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" "
       "\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">"
    << std::endl;

  f << ISOMETRIC_PATTERN_TRAILING_STRING << " -vertical-spacing "
    << verticalSpacing_ << "  -horizontal-spacing " << horizontalSpacing_
    << "  -layer-number " << numberLayer_ << "  -rows " << gridRowsCols_[0]
    << "  -cols " << gridRowsCols_[1] << "  -grid-dotRadius " << dotRadius_;
  f << "  -grid-pattern ";
  for (int r = 0; r < M.rows(); ++r) {
    for (int q = 0; q < M.cols(); ++q) f << M(r, q);
  }
  f << std::endl << " -matrix " << std::endl << M;
  f << " -->" << std::endl;
  // units in mm
  const double canvasWidth =
      ((gridRowsCols_[1] - 1) * horizontalSpacing_ * 1000) + offsetInMm * 2.;
  const double canvasHeight =
      ((gridRowsCols_[0] - 1) * verticalSpacing_ * 1000) + offsetInMm * 2.;

  f << fmt::format(R"#(<svg width="{}mm" height="{}mm">)#", canvasWidth,
                   canvasHeight);
  f << std::endl;
  f << fmt::format(
      R"#(<rect width="{}mm" height="{}mm" style="fill:{}" z-index="-1"/>)#",
      canvasWidth, canvasHeight, bgcolor);
  f << std::endl;
  for (int r = 0; r < M.rows(); ++r) {
    for (int q = 0; q < M.cols(); ++q) {
      if (M(r, q) == 0 || M(r, q) == 1) {
        std::string color = (M(r, q) == 1) ? color1 : color0;
        f << fmt::format(
            R"#(<circle cx="{}mm" cy="{}mm" r="{}mm" fill="{}" stroke-width="0"/>)#",
            patternPts_(0, r * M.cols() + q) * 1000 + offsetInMm,
            patternPts_(1, r * M.cols() + q) * 1000 + offsetInMm,
            dotRadius_ * 1000,  // meters to millimeters
            color);
        f << std::endl;
      }
    }
  }
  f << "</svg>" << std::endl;
}