Dear all,
I modified the GeoTools ShapefileViewer example
(http://www.opensourcejavaphp.net/java/geotools/org/geotools/demo/swing/ShapefileViewer.java.html)
in order to use the B3partners BV DXF plugin:
public void loadDXF() throws IOException {
File file = JFileDataStoreChooser.showOpenFile("dxf", null);
if (file != null) {
addDXF(file.toURI().toURL(), true);
}
}
public boolean addDXF(URL dxfURL, boolean defaultStyle) throws
IOException {
if (dxfURL == null) {
throw new IllegalArgumentException("shapefileURL must not
me null");
}
DXFDataStore dstore = null;
DataStore found = repository.dataStore(dxfURL.toString());
if(found != null && found instanceof FileDataStore){
dstore = (DXFDataStore) found;
}
else {
dstore = new DXFDataStore(dxfURL, "EPSG:3004");
repository.register(dxfURL.toString(), dstore);
}
/*
* Before doing anything else we attempt to connect to the
* shapefile to check that it exists and is reachable. An
* IOException will be thrown if this fails.
*/
String typeName = dstore.getTypeNames()[0];
dstore.getSchema(typeName);
/*
* We assume from this point that the shapefile exists and
* is accessible
*/
Style style = null;
URL sldURL = getShapefileSLD(dxfURL);
if (sldURL != null) {
/*
* The DXF has an associated SLD file. We read this and
* use the (first) style for the new layer
*/
StyleFactory factory =
CommonFactoryFinder.getStyleFactory(null);
SLDParser stylereader = new SLDParser(factory, sldURL);
style = stylereader.readXML()[0];
} else if (defaultStyle) {
/*
* There was no associated SLD file so we attempt to create
* a minimal style to display the layer
*/
style = JSimpleStyleDialog.showDialog(this, dstore);
if (style == null) {
return false;
}
} else {
/*
* We are not having a good day...
*/
return false;
}
MapLayer layer = new
DefaultMapLayer(dstore.getFeatureSource(typeName), style);
addLayer(layer);
return true;
}
I need to open, display, zoom and pan a DXF map. But I can't display it
because i have the following problem:
Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException:
java.lang.UnsupportedOperationException: No style method for
com.vividsolutions.jts.geom.Geometry
at
org.geotools.swing.styling.JSimpleStyleDialog.init(JSimpleStyleDialog.java:413)
at
org.geotools.swing.styling.JSimpleStyleDialog.<init>(JSimpleStyleDialog.java:366)
at
org.geotools.swing.styling.JSimpleStyleDialog.showDialog(JSimpleStyleDialog.java:302)
at
org.geotools.swing.styling.JSimpleStyleDialog.showDialog(JSimpleStyleDialog.java:268)
at
org.geotools.swing.styling.JSimpleStyleDialog.showDialog(JSimpleStyleDialog.java:243)
at
org.geotools.demo.swing.ShapefileViewer.addDXF(ShapefileViewer.java:358)
at
org.geotools.demo.swing.ShapefileViewer.loadDXF(ShapefileViewer.java:157)
at
org.geotools.demo.swing.ShapefileViewer$1.actionPerformed(ShapefileViewerjava:107)
[...]
Caused by: java.lang.UnsupportedOperationException: No style method for
com.vividsolutions.jts.geom.Geometry
at
org.geotools.swing.styling.JSimpleStyleDialog.setType(JSimpleStyleDialog.java:727)
at
org.geotools.swing.styling.JSimpleStyleDialog.init(JSimpleStyleDialog.java:409)
... 45 more
The faulty code is:
GeometryDescriptor desc = schema.getGeometryDescriptor();
Class<?> clazz = desc.getType().getBinding();
String labelText = schema.getTypeName();
if (Polygon.class.isAssignableFrom(clazz) ||
MultiPolygon.class.isAssignableFrom(clazz)) {
geomType = GeomType.POLYGON;
labelText = labelText + " (polygon)";
} else if (LineString.class.isAssignableFrom(clazz) ||
MultiLineString.class.isAssignableFrom(clazz)) {
geomType = GeomType.LINE;
labelText = labelText + " (line)";
} else if (Point.class.isAssignableFrom(clazz) ||
MultiPoint.class.isAssignableFrom(clazz)) {
geomType = GeomType.POINT;
labelText = labelText + " (point)";
} else {
throw new UnsupportedOperationException("No style method
for " + clazz.getName());
}
Here, the JSimpleStyleDialog.setType() does not recognize the clazz
object and it throws the exception. With regards to the addDXF()
function above, consider that:
clazz ==
dstore.getSchema(typeName).getGeometryDescriptor().getType().getBinding() and
clazz.getName() == "com.vividsolutions.jts.geom.Geometry"
Where Geometry is an abstract class! For that I'm wondering why I have
the fault (shapefiles don't generate it). It seems I have a not
recognized GeometryDescriptor created by the DXF Plugin.
What do you think about?
Thank you very much,
Valerio
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