Examples of processing.xml.XMLElement

processing.xml.XMLElement
ml.cyberelf.be/">http://nanoxml.cyberelf.be/. Some interfaces to the code have been changed, and the package naming has been altered, however it should be clear that this code is almost entirely his work, with no connection to the Processing project.
The intent of this library (with regard to Processing) is to provide an extremely simple (and compact) means of reading and writing XML data from a sketch. As such, this is not a full-featured library for handling XML data. For those who need it, more sophisticated libraries are available, and there are no plans to add significant new features to this library. import processing.xml.*; XMLElement xml = new XMLElement("filename.xml", this); int childCount = xml.getChildCount(); for (int i = 0; i < childCount; i++) { XMLElement kid = xml.getChild(i); float attr = kid.getFloatAttribute("some-attribute"); println("some-attribute is " + attr); } @author Marc De Scheemaecker<cyberelf@mac.com>

  public GLModel(PApplet parent, String filename) {
    initModelCommon(parent);
    this.parent = parent;


    filename = filename.replace('\\', '/');
    XMLElement xml = new XMLElement(parent, filename);


    loadXML(xml);
  }

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    this.parent = parent;


    try {
      String xmlText = PApplet
          .join(PApplet.loadStrings(url.openStream()), "\n");
      XMLElement xml = new XMLElement(xmlText);
      loadXML(xml);
    } catch (IOException e) {
      System.err.println("Error loading effect: " + e.getMessage());
    }
  }

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  @SuppressWarnings("unchecked")
  protected void loadXML(XMLElement xml) {
    int n = xml.getChildCount();
    String name, content;
    XMLElement child;


    GLTexture[] texturesList;
    ArrayList<PVector> verticesList;
    ArrayList<PVector>[] texCoordsList;
    ArrayList<float[]>[] vertexAttribsList;
    ArrayList<PVector> normalsList;
    ArrayList<float[]> colorsList;
    String[] texNames;
    String[] attrNames;
    int[] attrSizes;


    texturesList = null;
    verticesList = new ArrayList<PVector>();
    texCoordsList = null;
    vertexAttribsList = null;
    normalsList = new ArrayList<PVector>();
    colorsList = new ArrayList<float[]>();
    texNames = null;
    attrNames = null;
    attrSizes = null;


    for (int i = 0; i < n; i++) {
      child = xml.getChild(i);
      name = child.getName();
      if (name.equals("description")) {
        description = child.getContent();
      } else if (name.equals("size")) {
        size = PApplet.parseInt(child.getContent());
      } else if (name.equals("geometry")) {
        content = child.getContent();
        vertexMode = GLUtils.parsePrimitive(content);
        if (vertexMode == GL.GL_POINTS && content.equals("POINT_SPRITES")) {
          vertexMode = GL.GL_POINTS;
          usingPointSprites = true;
          maxSpriteSize = GLState.glMaxAntialiasedPointSize;
        }
      } else if (name.equals("mode")) {
        vboUsage = GLUtils.parseVBOMode(child.getContent());
      } else if (name.equals("textures")) {
        int ntex = child.getChildCount();
        texturesList = new GLTexture[ntex];
        texNames = new String[ntex];
        texCoordsList = new ArrayList[ntex];


        loadTextures(child, texturesList, texCoordsList, texNames);
      } else if (name.equals("vertexattribs")) {
        int nattr = child.getChildCount();


        vertexAttribsList = new ArrayList[nattr];
        attrNames = new String[nattr];
        attrSizes = new int[nattr];


        loadVertexAttribs(child, vertexAttribsList, attrNames, attrSizes);
      } else if (name.equals("vertices")) {
        String binfile = child.getString("file");
        if (binfile != null)
          loadVertices(binfile, verticesList);
        else
          loadVertices(child, verticesList);
      } else if (name.equals("texcoords")) {
        if (texCoordsList != null) {
          int unit = child.getInt("unit");
          if (texCoordsList[unit] != null) {
            String binfile = child.getString("file");
            if (binfile != null)
              loadTexCoords(binfile, texCoordsList[unit]);
            else
              loadTexCoords(child, texCoordsList[unit]);
          }
        }
      } else if (name.equals("colors")) {
        String binfile = child.getString("file");
        if (binfile != null)
          loadColors(binfile, colorsList);
        else
          loadColors(child, colorsList);
      } else if (name.equals("normals")) {
        String binfile = child.getString("file");
        if (binfile != null)
          loadNormals(binfile, normalsList);
        else
          loadNormals(child, normalsList);
      } else if (name.equals("attribs")) {
        if (vertexAttribsList != null && attrSizes != null) {
          int num = child.getInt("number");
          if (vertexAttribsList[num] != null) {
            String binfile = child.getString("file");
            if (binfile != null)
              loadVertexAttrib(binfile, vertexAttribsList[num], attrSizes[num]);
            else
              loadVertexAttrib(child, vertexAttribsList[num], attrSizes[num]);
          }

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  }


  protected void loadTextures(XMLElement xml, GLTexture[] texturesList,
      ArrayList<PVector>[] texCoordsList, String[] texNames) {
    int n = xml.getChildCount();
    XMLElement child;
    String name;


    String unitStr, fn;
    int unit;
    for (int i = 0; i < n; i++) {
      child = xml.getChild(i);
      name = child.getName();
      if (name.equals("texture")) {
        unitStr = child.getContent();
        unit = PApplet.parseInt(unitStr);


        texCoordsList[unit] = new ArrayList<PVector>();


        texNames[unit] = child.getString("name");
        fn = child.getString("file");
        texturesList[unit] = new GLTexture(parent, fn);
        texturesList[unit].setName(texNames[unit]);
      }
    }
  }

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  protected void loadVertexAttribs(XMLElement xml,
      ArrayList<float[]>[] vertexAttribsList, String[] attrNames,
      int[] attrSizes) {
    int n = xml.getChildCount();
    XMLElement child;
    String name;


    String numStr;
    int num;
    for (int i = 0; i < n; i++) {
      child = xml.getChild(i);
      name = child.getName();
      if (name.equals("vertexattrib")) {
        numStr = child.getContent();
        num = PApplet.parseInt(numStr);


        vertexAttribsList[num] = new ArrayList<float[]>();


        attrNames[num] = child.getString("name");
        attrSizes[num] = child.getInt("size");
      }
    }
  }

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    }
  }


  protected void loadVertices(XMLElement xml, ArrayList<PVector> verticesList) {
    int n = xml.getChildCount();
    XMLElement child;
    String name;


    String coordStr;
    float[] coord;
    for (int i = 0; i < n; i++) {
      child = xml.getChild(i);
      name = child.getName();
      if (name.equals("vertex")) {
        coordStr = child.getContent();
        coord = PApplet.parseFloat(PApplet.split(coordStr, ' '));


        if (coord.length == 3)
          verticesList.add(new PVector(coord[0], coord[1], coord[2]));
      }

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    loadPVectorArrayListFromBinary(binaryFN, verticesList, 3);
  }


  protected void loadTexCoords(XMLElement xml, ArrayList<PVector> texCoordsList) {
    int n = xml.getChildCount();
    XMLElement child;
    String name;


    String coordStr;
    float[] coord;
    for (int i = 0; i < n; i++) {
      child = xml.getChild(i);
      name = child.getName();
      if (name.equals("texcoord")) {
        coordStr = child.getContent();
        coord = PApplet.parseFloat(PApplet.split(coordStr, ' '));


        if (coord.length == 2)
          texCoordsList.add(new PVector(coord[0], coord[1]));
      }

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    loadPVectorArrayListFromBinary(binaryFN, texCoordsList, 2);
  }


  protected void loadColors(XMLElement xml, ArrayList<float[]> colorsList) {
    int n = xml.getChildCount();
    XMLElement child;
    String name;


    String coordStr;
    float[] coord;
    for (int i = 0; i < n; i++) {
      child = xml.getChild(i);
      name = child.getName();
      if (name.equals("color")) {
        coordStr = child.getContent();
        coord = PApplet.parseFloat(PApplet.split(coordStr, ' '));


        if (coord.length == 4)
          colorsList.add(coord);
      }

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    loadFloatArrayListFromBinary(binaryFN, colorsList, 4);
  }


  protected void loadNormals(XMLElement xml, ArrayList<PVector> normalsList) {
    int n = xml.getChildCount();
    XMLElement child;
    String name;


    String coordStr;
    float[] coord;
    for (int i = 0; i < n; i++) {
      child = xml.getChild(i);
      name = child.getName();
      if (name.equals("normal")) {
        coordStr = child.getContent();
        coord = PApplet.parseFloat(PApplet.split(coordStr, ' '));


        if (coord.length == 3)
          normalsList.add(new PVector(coord[0], coord[1], coord[2]));
      }

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  }


  protected void loadVertexAttrib(XMLElement xml,
      ArrayList<float[]> vertexAttribsList, int attrSize) {
    int n = xml.getChildCount();
    XMLElement child;
    String name;


    String coordStr;
    float[] coord;
    for (int i = 0; i < n; i++) {
      child = xml.getChild(i);
      name = child.getName();
      if (name.equals("attrib")) {
        coordStr = child.getContent();
        coord = PApplet.parseFloat(PApplet.split(coordStr, ' '));


        if (coord.length == attrSize)
          vertexAttribsList.add(coord);
      }

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