package org.opentrafficsim.road.network.factory.opendrive;
   
   import java.io.Serializable;
   
   import org.djunits.unit.LengthUnit;
   import org.djunits.value.vdouble.scalar.Length;
   import org.opentrafficsim.core.network.NetworkException;
   import org.w3c.dom.NamedNodeMap;
   import org.w3c.dom.Node;
  import org.w3c.dom.NodeList;
  import org.xml.sax.SAXException;
  
  /**
   * <p>
   * Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
   * <p>
   * $LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $,
   * initial version Jul 23, 2015 <br>
   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   */
  class WidthTag implements Serializable
  {
      /** */
      private static final long serialVersionUID = 20150723L;
  
      /** The sOffst. */
      @SuppressWarnings("checkstyle:visibilitymodifier")
      Length sOffst = null;
  
      /** Parameter a. */
      @SuppressWarnings("checkstyle:visibilitymodifier")
      Length a = null;
  
      /** Parameter b. */
      @SuppressWarnings("checkstyle:visibilitymodifier")
      Length b = null;
  
      /** Parameter c. */
      @SuppressWarnings("checkstyle:visibilitymodifier")
      Length c = null;
  
      /** Parameter d. */
      @SuppressWarnings("checkstyle:visibilitymodifier")
      Length d = null;
  
      /**
       * Parse the attributes of the road.type tag. The sub-elements are parsed in separate classes.
       * @param nodeList NodeList; the list of subnodes of the road node
       * @param parser OpenDriveNetworkLaneParser; the parser with the lists of information
       * @param laneTag LaneTag; the LaneTag to which this element belongs
       * @throws SAXException when parsing of the tag fails
       * @throws NetworkException when parsing of the tag fails
       */
      @SuppressWarnings("checkstyle:needbraces")
      static void parseWidth(final NodeList nodeList, final OpenDriveNetworkLaneParser parser, final LaneTag laneTag)
              throws SAXException, NetworkException
      {
          int widthCount = 0;
          for (Node node : XMLParser.getNodes(nodeList, "width"))
          {
              widthCount++;
              WidthTag widthTag = new WidthTag();
              NamedNodeMap attributes = node.getAttributes();
  
              Node sOffst = attributes.getNamedItem("sOffset");
              if (sOffst != null)
                  widthTag.sOffst = new Length(Double.parseDouble(sOffst.getNodeValue().trim()), LengthUnit.METER);
  
              Node a = attributes.getNamedItem("a");
              if (a != null)
                  widthTag.a = new Length(Double.parseDouble(a.getNodeValue().trim()), LengthUnit.METER);
  
              Node b = attributes.getNamedItem("b");
              if (b != null)
                  widthTag.b = new Length(Double.parseDouble(b.getNodeValue().trim()), LengthUnit.METER);
  
              Node c = attributes.getNamedItem("c");
              if (c != null)
                  widthTag.c = new Length(Double.parseDouble(c.getNodeValue().trim()), LengthUnit.METER);
  
              Node d = attributes.getNamedItem("d");
              if (d != null)
                  widthTag.d = new Length(Double.parseDouble(d.getNodeValue().trim()), LengthUnit.METER);
  
              laneTag.widthTags.add(widthTag);
          }
  
          // if (widthCount > 1)
          // System.out.println("ROAD: more than one width tag for road");
      }
  
      /** {@inheritDoc} */
      @Override
      public final String toString()
      {
          return "WidthTag [sOffst=" + this.sOffst + ", a=" + this.a + ", b=" + this.b + ", c=" + this.c + ", d=" + this.d + "]";
      }
  }