aima.core.util.math.geom

Class SVGGroupParser

java.lang.Object

aima.core.util.math.geom.SVGGroupParser

All Implemented Interfaces:

IGroupParser

public class SVGGroupParser
extends java.lang.Object
implements IGroupParser

This class implements IGroupParser for a SVG map. the "g" element is used to define the group(s) that should be parsed.
The parser only recognizes the following basic shapes:

• rect
• line
• circle
• ellipse
• polyline
• polygon

In addition any number of grouping elements are allowed.
For all elements only the coordinates and the transform attribute are used. This means that rounded corners etc. are ignored. Every element/shape can use the transform attribute. The following transformations may be used:

• translate
• scale
• rotate

To use the svg map with CartesianPlot2D it has to contain a "g" element with an id.
See w3c® SVG standard definition for more information.

During the process of parsing most of the time is spent in the XMLStreamReader. A known issue is a element in the file. Removing this element can speed up the parsing significantly.

Author:

Arno von Borries, Jan Phillip Kretzschmar, Andreas Walscheid

Constructor Summary

Constructors

Constructor and Description
SVGGroupParser()

Method Summary

Modifier and Type	Method and Description
java.util.ArrayList<IGeometric2D>	parse(java.io.InputStream input, java.lang.String groupID) Parses the given InputStream into a group of geometric shapes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SVGGroupParser

public SVGGroupParser()

Method Detail

parse

public java.util.ArrayList<IGeometric2D> parse(java.io.InputStream input,
                                               java.lang.String groupID)
                                        throws javax.xml.stream.XMLStreamException

Parses the given InputStream into a group of geometric shapes.

Specified by:

parse in interface IGroupParser

Parameters:

input - the given input stream.

groupID - the identifier for the group.

Returns:

the constructed list of geometric shapes.

Throws:

javax.xml.stream.XMLStreamException - if a syntax error is found in the input.