Method getPoints

src/geometry/TextSceneNode.cpp:154–203

void TextSceneNode::getPoints(fvec3 points[5]) const {
  const WorldText& text = renderNode.text;

  float yp = 0.0f;
  float yn = 0.0f;
  if (!renderNode.lines.empty()) {
    const float ySpan = (float)(renderNode.lines.size() - 1) *
                        (renderNode.lineStep / renderNode.fontSize);
    if (ySpan < 0.0f) {
      yp = +1.5f;
      yn = ySpan - 0.5f;
    }
    else {
      yp = +1.5f + ySpan;
      yn = -0.5f;
    }
  }

  float xn = +1.0e20f;
  float xp = -1.0e20f;
  const std::vector<float>& widths = renderNode.widths;
  if (renderNode.fixedWidth > 0.0f) {
    xn = renderNode.fixedWidth * -text.justify;
    xp = xn + renderNode.fixedWidth;
  }
  else {
    for (size_t i = 0; i < widths.size(); i++) {
      float n = widths[i] * -text.justify;
      float p = n + widths[i];
      if (xn > n) { xn = n; }
      if (xp < p) { xp = p; }
    }
  }

  // adjust for fontSize, and add some margin
  xp = (xp / renderNode.fontSize) + 0.5f;
  xn = (xn / renderNode.fontSize) - 0.5f;

  points[0] = fvec3(xn, yn, 0.0f);
  points[1] = fvec3(xp, yn, 0.0f);
  points[2] = fvec3(xp, yp, 0.0f);
  points[3] = fvec3(xn, yp, 0.0f);
  points[4] = fvec3(0.0f, 0.0f, 0.0f); // origin

  MeshTransform xform = text.xform;
  MeshTransform::Tool xformTool(xform);
  for (int i = 0; i < 5; i++) {
    xformTool.modifyVertex(points[i]);
  }
}


float TextSceneNode::getMaxDist(const fvec3 points[5]) const {