The parsing for the -min-lineweight option of dwg2svg is broken, only -w or the undocumented -minlineweight options work.

This is due to a typo in the Dwg2Svg.js script around line 225:

      properties["minLineweight"] = getArgument(args, "-w", "-min-lineweight");
      if (isNull(properties["minlineweight"])) {
          properties["minLineweight"] = getArgument(args, "-w", "-minlineweight");
      }

This should be:

      properties["minLineweight"] = getArgument(args, "-w", "-min-lineweight");
      if (isNull(properties["minLineweight"])) {
          properties["minLineweight"] = getArgument(args, "-w", "-minlineweight");
      }

Note the case minlineweight vs minLineweight.

This has the consequence that the value parsed form -min-lineweight is always replaced with the value from -minlineweight, which is usually undefined.

Since the short option -w is parsed in both cases, it is not affected from the bug.