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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.
/*
* Copyright (C) 2012 United States Government as represented by the Administrator of the
* National Aeronautics and Space Administration.
* All Rights Reserved.
*/
package gov.nasa.worldwind.ogc.collada;
import gov.nasa.worldwind.util.WWUtil;
import gov.nasa.worldwind.util.xml.XMLEventParserContext;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.XMLEvent;
/**
* Represents the COLLADA p element and provides access to its contents. The p element is a sort of
* indirect index that determines how vertices, normals, and texture coordinates are read from the inputs. This
* tutorial is helpful for understanding how the p element relates to COLLADA geometry: http://www.wazim.com/Collada_Tutorial_1.htm.
*
* @author pabercrombie
* @version $Id: ColladaP.java 662 2012-06-26 19:05:46Z pabercrombie $
*/
public class ColladaP extends ColladaAbstractObject
{
/** Indices contained in this element. */
protected int[] indices;
/**
* Construct an instance.
*
* @param ns the qualifying namespace URI. May be null to indicate no namespace qualification.
*/
public ColladaP(String ns)
{
super(ns);
}
/**
* Indicates the contents of the P element.
*
* @return Array of indices defined by this element.
*/
public int[] getIndices()
{
return this.indices;
}
/** {@inheritDoc} */
@Override
public Object parse(XMLEventParserContext ctx, XMLEvent event, Object... args) throws XMLStreamException
{
super.parse(ctx, event, args);
if (this.hasField(CHARACTERS_CONTENT))
{
String s = (String) this.getField(CHARACTERS_CONTENT);
if (!WWUtil.isEmpty(s))
this.indices = this.parseInts(s);
// Don't need to keep string version of the ints
this.removeField(CHARACTERS_CONTENT);
}
return this;
}
/**
* Parse an string of integers into an array.
*
* @param intArrayString String of integers separated by spaces.
*
* @return Array of integers parsed from the input string.
*/
protected int[] parseInts(String intArrayString)
{
String[] arrayOfNumbers = intArrayString.split("\\s");
int[] ints = new int[arrayOfNumbers.length];
int i = 0;
for (String s : arrayOfNumbers)
{
if (!WWUtil.isEmpty(s))
ints[i++] = Integer.parseInt(s);
}
return ints;
}
}