message: [svg] fix NaN in path problem
diff: @@ -254,7 +254,12 @@ svgPath.brush = function (el) {
  el.buildPath(path, el.shape);
  el.__dirtyPath = false;
  - attr(svgEl, 'd', pathDataToString(path));
  + var pathStr = pathDataToString(path);
  + if (pathStr.indexOf('NaN') < 0) {
  + // Ignore illegal path, which may happen such in out-of-range
  + // data in Calendar series.
  + attr(svgEl, 'd', pathStr);
  + }
  }
  bindStyle(svgEl, style);
  