protected override SymDef CreateSymDef(Map map, SymColor symColor)
{
LineSymDef symdef = new LineSymDef("Line", "704", symColor, LineThickness * scaleRatio, LineJoin.Round, LineCap.Flat);
symdef.ToolboxImage = MapUtil.CreateToolboxIcon(Properties.Resources.Line_OcadToolbox);
map.AddSymdef(symdef);
return symdef;
}