createPath method

Map<String, dynamic> createPath(dynamic char, double scale, double offsetX, double offsetY, dynamic data,)

Implementation

Map<String, dynamic> createPath(
    char, double scale, double offsetX, double offsetY, data) {
  var glyph = data["glyphs"][char] ?? data["glyphs"]['?'];

  if (glyph == null) {
    print(
        "THREE.Font: character $char does not exists in font family ${data.familyName}");
    // return null;
    glyph = data["glyphs"]["a"];
  }

  var path = ShapePath();

  double x = 0.1;
  double y = 0.1;
  double cpx, cpy, cpx1, cpy1, cpx2, cpy2;

  if (glyph["o"] != null) {
    var outline = glyph["_cachedOutline"];

    if (outline == null) {
      glyph["_cachedOutline"] = glyph["o"].split(' ');
      outline = glyph["_cachedOutline"];
    }

    print(" outline scale: $scale ");
    print(outline);

    for (int i = 0, l = outline.length; i < l;) {
      var action = outline[i];
      i = i + 1;

      switch (action) {
        case 'm': // moveTo
          x = int.parse(outline[i++]) * scale + offsetX;
          y = int.parse(outline[i++]) * scale + offsetY;

          path.moveTo(x, y);
          break;

        case 'l': // lineTo

          x = int.parse(outline[i++]) * scale + offsetX;
          y = int.parse(outline[i++]) * scale + offsetY;

          path.lineTo(x, y);

          break;

        case 'q': // quadraticCurveTo

          cpx = int.parse(outline[i++]) * scale + offsetX;
          cpy = int.parse(outline[i++]) * scale + offsetY;
          cpx1 = int.parse(outline[i++]) * scale + offsetX;
          cpy1 = int.parse(outline[i++]) * scale + offsetY;

          path.quadraticCurveTo(cpx1, cpy1, cpx, cpy);

          break;

        case 'b': // bezierCurveTo

          cpx = int.parse(outline[i++]) * scale + offsetX;
          cpy = int.parse(outline[i++]) * scale + offsetY;
          cpx1 = int.parse(outline[i++]) * scale + offsetX;
          cpy1 = int.parse(outline[i++]) * scale + offsetY;
          cpx2 = int.parse(outline[i++]) * scale + offsetX;
          cpy2 = int.parse(outline[i++]) * scale + offsetY;

          path.bezierCurveTo(cpx1, cpy1, cpx2, cpy2, cpx, cpy);

          break;
      }
    }
  }

  return {"offsetX": glyph["ha"] * scale, "path": path};
}