/**
* Returns the extent ("xmin", "ymin", "xmax", "ymax") for the specified row as a {@link VPFBoundingBox}.
*
* @param record the record to extract the bound attributes from.
*
* @return extent of the specified row.
*/
public static VPFBoundingBox getExtent(VPFRecord record)
{
if (record == null)
{
String message = Logging.getMessage("nullValue.RecordIsNull");
Logging.logger().severe(message);
throw new ArgumentException(message);
}
return(new VPFBoundingBox(
((Number)record.getValue("xmin")).doubleValue(),
((Number)record.getValue("ymin")).doubleValue(),
((Number)record.getValue("xmax")).doubleValue(),
((Number)record.getValue("ymax")).doubleValue()));
}
//**************************************************************//
//******************** Winged-Edge Face Construction *********//
//**************************************************************//
/**
* Given a row from the ring primitive table, navigate the ring and edge primitive tables to construct a new {@link
* VPFPrimitiveData.Ring}.
*
* @param row the ring primitive row.
* @param edgeInfoArray the edge primitive data.
*
* @return a new Ring.
*/
protected VPFPrimitiveData.Ring buildRing(VPFRecord row, VPFPrimitiveData.PrimitiveInfo[] edgeInfoArray)
{
int faceId = ((Number)row.getValue("face_id")).intValue();
int startEdgeId = ((Number)row.getValue("start_edge")).intValue();
VPFWingedEdgeTraverser traverser = new VPFWingedEdgeTraverser();
// Traverse the ring to collect the number of edges which define the ring.
final int numEdges = traverser.traverseRing(faceId, startEdgeId, edgeInfoArray, null);
final int[] idArray = new int[numEdges];
final int[] orientationArray = new int[numEdges];
// Traverse the ring again, but this time populate an entry for the primitiveID and orientation data stuctures
// for each edge.
traverser.traverseRing(faceId, startEdgeId, edgeInfoArray, new VPFWingedEdgeTraverser.EdgeTraversalListener()
{
protected VPFFeature createSimpleFeature(VPFFeatureClass featureClass, VPFRecord featureRow,
Iterable <String> attributeKeys)
{
// Feature has a direct 1:1 relation to the primitive table.
if (this.tile != null && !matchesTile(featureRow, this.tile))
{
return(null);
}
VPFRelation featureToPrimitive = this.getFeatureToPrimitiveRelation(featureClass);
if (featureToPrimitive == null)
{
return(null);
}
int primitiveId = asInt(featureRow.getValue(featureToPrimitive.getTable1Key()));
VPFPrimitiveData.PrimitiveInfo primitiveInfo = this.primitiveData.getPrimitiveInfo(
featureToPrimitive.getTable2(), primitiveId);
return(this.createFeature(featureClass, featureRow, attributeKeys, primitiveInfo.getBounds(),
new int[] { primitiveId }));
}
public VPFFeatureClassSchema[] getFeatureClasses(FileFilter featureTableFilter)
{
if (featureTableFilter == null)
{
String message = Logging.getMessage("nullValue.FilterIsNull");
Logging.logger().severe(message);
throw new ArgumentException(message);
}
// List the file names in the coverage directory matching the specified feature table file filter.
String[] names = WWIO.listChildFilenames(new File(this.getFilePath()), featureTableFilter);
if (names == null)
{
return(null);
}
int numFeatures = names.length;
VPFFeatureClassSchema[] desc = new VPFFeatureClassSchema[numFeatures];
for (int i = 0; i < numFeatures; i++)
{
String featureTableName = names[i];
String className = WWIO.replaceSuffix(featureTableName, "");
String type = null;
// If the Feature Class Attriute Table is available, then use it to determine the feature type for the
// specified class.
if (this.featureClassAttributeTable != null)
{
VPFRecord record = this.featureClassAttributeTable.getRecord("fclass", className);
if (record != null)
{
type = (String)record.getValue("type");
}
}
// Otherwise, determine the feature type is based on the feature table extension.
if (type == null)
{
type = VPFUtils.getFeatureTypeName(featureTableName);
}
desc[i] = new VPFFeatureClassSchema(className, VPFFeatureType.fromTypeName(type), featureTableName);
}
return(desc);
}
public static void checkAndSetValue(VPFRecord record, String paramName, String paramKey, AVList parameters)
{
if (record == null)
{
String message = Logging.getMessage("nullValue.RecordIsNull");
Logging.logger().severe(message);
throw new ArgumentException(message);
}
if (paramName == null)
{
String message = Logging.getMessage("nullValue.ParameterNameIsNull");
Logging.logger().severe(message);
throw new ArgumentException(message);
}
if (paramKey == null)
{
String message = Logging.getMessage("nullValue.ParameterKeyIsNull");
Logging.logger().severe(message);
throw new ArgumentException(message);
}
if (params == null)
{
String message = Logging.getMessage("nullValue.ParamsIsNull");
Logging.logger().severe(message);
throw new ArgumentException(message);
}
if (record.hasValue(paramName))
{
Object o = record.getValue(paramName);
if (o != null)
{
parameters.setValue(paramKey, o);
}
}
}
protected void buildFacePrimitives(VPFCoverage coverage, VPFTile tile, VPFPrimitiveData primitiveData)
{
VPFBufferedRecordData faceTable = this.createPrimitiveTable(coverage, tile, VPFConstants.FACE_PRIMITIVE_TABLE);
if (faceTable == null)
{
return;
}
VPFBufferedRecordData mbrTable = this.createPrimitiveTable(coverage, tile,
VPFConstants.FACE_BOUNDING_RECTANGLE_TABLE);
if (mbrTable == null)
{
return;
}
VPFBufferedRecordData ringTable = this.createPrimitiveTable(coverage, tile, VPFConstants.RING_TABLE);
if (ringTable == null)
{
return;
}
VPFPrimitiveData.PrimitiveInfo[] edgeInfo = primitiveData.getPrimitiveInfo(VPFConstants.EDGE_PRIMITIVE_TABLE);
int numFaces = faceTable.getNumRecords();
VPFPrimitiveData.FaceInfo[] faceInfo = new VPFPrimitiveData.FaceInfo[numFaces];
foreach (VPFRecord faceRow in faceTable)
{
int faceId = faceRow.getId();
VPFRecord mbrRow = mbrTable.getRecord(faceId);
// Face ID 1 is reserved for the "universe face", which does not have any associated geometry.
if (faceId == 1)
{
continue;
}
// The first ring primitive associated with the face primitive defines the outer ring. The face primitive must
// at least contain coordinates for an outer ring.
int ringId = ((Number)faceRow.getValue("ring_ptr")).intValue();
VPFRecord ringRow = ringTable.getRecord(ringId);
VPFPrimitiveData.Ring outerRing = this.buildRing(ringRow, edgeInfo);
// The ring table maintains an order relationship for its rows. The first record of a new face id will always
// be defined as the outer ring. Any repeating records with an identical face value will define inner rings.
ArrayList <VPFPrimitiveData.Ring> innerRingList = new ArrayList <VPFPrimitiveData.Ring>();
for (ringId = ringId + 1; ringId <= ringTable.getNumRecords(); ringId++)
{
ringRow = ringTable.getRecord(ringId);
// Break on the first ring primitive row which isn't associated with the face. Because the ring rows
// maintain an ordering with respect to face id, there will be no other ring rows corresponding to this
// face.
if (faceId != getId(ringRow.getValue("face_id")))
{
break;
}
VPFPrimitiveData.Ring innerRing = this.buildRing(ringRow, edgeInfo);
if (innerRing != null)
{
innerRingList.add(innerRing);
}
}
VPFPrimitiveData.Ring[] innerRings = new VPFPrimitiveData.Ring[innerRingList.size()];
innerRingList.toArray(innerRings);
faceInfo[VPFBufferedRecordData.indexFromId(faceId)] = new VPFPrimitiveData.FaceInfo(
outerRing, innerRings, VPFUtils.getExtent(mbrRow));
}
primitiveData.setPrimitiveInfo(VPFConstants.FACE_PRIMITIVE_TABLE, faceInfo);
}
