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from gvsig import *
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from org.gvsig.fmap.dal import DALLocator
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from org.gvsig.fmap.mapcontext import MapContextLocator
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from org.gvsig.fmap.dal.coverage import RasterLocator
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from org.gvsig.fmap.dal.coverage.store.parameter import NewRasterStoreParameters
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from org.gvsig.fmap.dal.coverage.dataset import Buffer
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from org.gvsig.fmap.dal.serverexplorer.filesystem import FilesystemServerExplorer
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from org.gvsig.raster.fmap.layers import FLyrRaster
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from java.lang import Byte,Short,Integer,Float,Double
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from java.io import File
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from java.awt.geom import AffineTransform
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import os
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from os.path import splitext
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global sourceFileName
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sourceFileName = []
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sourceFileName.append(None)
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##
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#
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# Loads the raster layer given the filepath
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#
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# @params rasterfile the filename of the input layer
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#
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# @returns None loads the raster layer
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def loadRasterLayer (rasterfile, mode = "r" ):
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## Load a Raster file in a Layer
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sourceFileName[0]=rasterfile
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if not isinstance (rasterfile,File):
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rasterfile = File(rasterfile)
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name, ext = splitext(rasterfile.getName())
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view = currentView()
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# Get the manager to use
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dalManager = DALLocator.getDataManager()
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mapContextManager = MapContextLocator.getMapContextManager()
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if ext.lower() == ".ecw" or ext.lower() == ".jp2" :
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# FIXME
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pass
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elif ext.lower() == ".mrsid":
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# FIXME
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pass
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else:
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# Create the parameters to open the raster store based in GDAL
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params = dalManager.createStoreParameters("Gdal Store")
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params.setFile(rasterfile)
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# Create the raster store
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dataStore = dalManager.createStore(params)
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# Create a raster layer based in this raster store
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layer = mapContextManager.createLayer(name, dataStore);
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view.addLayer(layer)
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return layer
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## @cond FALSE
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rasterLayerExtensions = dict ()
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class RasterLayerExtensions(object):
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##This class hold aditional properties and operations need to manage the scripting raster layer
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def __init__(self, store=None):
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self.store = store
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self.buffer = None
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self.query = None
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self.values = None
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self.kernel = None
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self.setElem = None
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self.getElem = None
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def prepareQuery(self):
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## See RasterManager in javadocs for more info
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self.query = RasterLocator.getManager().createQuery();
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## See RasterQuery in javadocs for more
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self.query.setAllDrawableBands()
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self.query.setAreaOfInterest()
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self.buffer = None
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self.values = None
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self.kernel = None
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def loadStore (self,rasterfile, mode = "r" ):
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if not isinstance(rasterfile,File):
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rasterfile = File(rasterfile)
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name, ext = splitext(rasterfile.getName())
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dalManager = DALLocator.getDataManager()
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if ext.lower() == ".ecw" or ext.lower() == ".jp2" :
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# FIXME
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pass
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elif ext.lower() == ".mrsid":
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# FIXME
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pass
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else:
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# Create the parameters to open the raster store based in GDAL
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params = dalManager.createStoreParameters("Gdal Store")
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params.setFile(rasterfile)
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# Create the raster store
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dataStore = dalManager.createStore(params)
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return dataStore
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def createBuffer(self):
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if sourceFileName[0] == None:
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self.buffer = self.store.query(self.getQuery())
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else:
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queryStore = self.loadStore(sourceFileName[0])
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self.buffer = queryStore.query(self.getQuery())
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#print self.buffer.getBandCount()
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def createNewBuffer(self,width, height, bandcount, datatype):
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if self.store != None:
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raise RuntimeException("Can't create a new buffer associated to a store")
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# FIXME: workaround to work with a jython bug passing byte, short and
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# double values as parameters
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if datatype in (Buffer.TYPE_BYTE, Buffer.TYPE_SHORT, Buffer.TYPE_INT):
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datatype = Buffer.TYPE_INT
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else:
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datatype = Buffer.TYPE_FLOAT
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# End workaround
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#print "---->>>>Buffer", datatype, width, height, bandcount
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self.buffer = RasterLocator.getManager().createBuffer(
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int(datatype),
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int(width),
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int(height),
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int(0 if bandcount is None else bandcount),
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True
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)
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self.prepareBuffer(self.buffer)
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def prepareBuffer(self, buffer):
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def setElemByte(buffer, line, col, band, data):
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buffer.setElem(line, col, band, Byte(data).byteValue())
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def setElemShort (buffer, line, col, band, data):
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buffer.setElem(line, col, band, Short(data).shortValue())
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def setElemInt(buffer, line, col, band, data):
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buffer.setElem(line, col, band, Integer(data).intValue())
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def setElemFloat(buffer, line, col, band, data):
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buffer.setElem(line, col, band, Float(data).floatValue())
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def setElemDouble(buffer, line, col, band, data):
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buffer.setElem(line, col, band, Double(data).doubleValue())
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t = buffer.getDataType()
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if t == Buffer.TYPE_BYTE:
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self.getElem = buffer.getElemByte
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self.setElem = setElemByte
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elif t == Buffer.TYPE_SHORT or t == Buffer.TYPE_USHORT:
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self.getElem = buffer.getElemShort
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self.setElem = setElemShort
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elif t == Buffer.TYPE_INT:
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self.getElem = buffer.getElemInt
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self.setElem = setElemInt
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elif t == Buffer.TYPE_FLOAT:
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self.getElem = buffer.getElemFloat
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self.setElem = setElemFloat
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elif t == Buffer.TYPE_DOUBLE:
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self.getElem = buffer.getElemDouble
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self.setElem = setElemDouble
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#print buffer.getBandCount()
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self.values = [0 for count in range(buffer.getBandCount())]
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self.kernel = [[self.values for count in range(3)] for count in range(3)]
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def getQuery(self):
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if self.query == None:
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self.prepareQuery()
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return self.query
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def getBuffer(self, store):
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if self.buffer == None:
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self.createBuffer()
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self.prepareBuffer(self.buffer)
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return self.buffer
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def setValue(self, band, line, col, data):
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t = self.buffer.getDataType()
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if t == Buffer.TYPE_BYTE:
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self.buffer.setElem(line, col, band, Byte(data).byteValue())
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elif t == Buffer.TYPE_SHORT or t == Buffer.TYPE_USHORT:
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self.buffer.setElem(line, col, band, Short(data).shortValue())
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elif t == Buffer.TYPE_INT:
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self.buffer.setElem(line, col, band, Integer(data).intValue())
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elif t == Buffer.TYPE_FLOAT:
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self.buffer.setElem(line, col, band, Float(data).floatValue())
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elif t == Buffer.TYPE_DOUBLE:
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self.buffer.setElem(line, col, band, Double(data).doubleValue())
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def getValue(self, band, row, column):
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if self.getElem == None:
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self.createBuffer()
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self.prepareBuffer(self.buffer)
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return self.getElem(row, column, band)
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def getBandValues(self, row, column):
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if self.getElem == None:
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self.createBuffer()
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self.prepareBuffer(self.buffer)
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for b in xrange(self.buffer.getBandCount()):
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self.values[b] = self.getElem(row, column, b)
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return self.values
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def setBandValues(self,row,column,values):
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for b in xrange(self.buffer.getBandCount()):
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self.setElem(self.buffer, row, column, b, values[b])
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def saveBuffer(self,filename):
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manager = DALLocator.getDataManager ()
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eparams = manager.createServerExplorerParameters(FilesystemServerExplorer.NAME)
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eparams.setDynValue("initialpath",os.path.dirname(sourceFileName[0]))
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serverExplorer = manager.openServerExplorer(eparams.getExplorerName(),eparams)
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sparams = serverExplorer.getAddParameters("Gdal Store")
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sparams.setDestination(os.path.dirname(sourceFileName[0]),filename)
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sparams.setBuffer(self.buffer)
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#at = AffineTransform(1, 0, 0, -1, 0, 0)
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#sparams.setAffineTransform(at);
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serverExplorer.add("Gdal Store", sparams, True)
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## @endcond
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##
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#
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# Represents a raster layer.
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#
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class RasterLayer(FLyrRaster):
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TYPE_BYTE = Buffer.TYPE_BYTE
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TYPE_SHORT = Buffer.TYPE_SHORT
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TYPE_INT = Buffer.TYPE_INT
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TYPE_FLOAT = Buffer.TYPE_FLOAT
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TYPE_DOUBLE = Buffer.TYPE_DOUBLE
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@staticmethod
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## @cond FALSE
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def getExtensions(self):
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## This is a internal method, don't use it.
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global rasterLayerExtensions
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extensions = rasterLayerExtensions.get(self.hashCode(), None)
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if extensions == None:
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extensions = RasterLayerExtensions(self.getDataStore())
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rasterLayerExtensions[self.hashCode()] = extensions
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return extensions
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## @endcond
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@staticmethod
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##
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#
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# Return the number of bands of the raster
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#
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# @param self The raster layer object
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#
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# @return the number of bands of the raster layer
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#
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def getBandsCount(self):
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return self.getDataStore().getBandCount()
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@staticmethod
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##
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#
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# Return the width in points/pixels of the raster
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#
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# @param self The raster layer object
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#
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# @return the width of the raster
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#
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def getWidth(self):
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return self.getDataStore().getWidth()
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@staticmethod
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##
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#
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# Return the height in points/pixels of the raster
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#
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# @param self The raster layer object
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#
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# @return the height of the raster
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def getHeight(self):
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return self.getDataStore().getHeight()
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@staticmethod
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##
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#
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# Return the data type of the raster
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#
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# TYPE_BYTE = Byte datatype
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#
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# TYPE_USHORT = Unsigned Short datatype
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#
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# TYPE_SHORT = Signed Short datatype
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#
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# TYPE_INT = Integer datatype
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#
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# TYPE_FLOAT = Float Datatype
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#
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# TYPE_DOUBLE = Double Datatype
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#
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# @param self The raster layer object
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#
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# @return the datatype of the raster layer
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def getDataType(self):
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return self.getDataStore().getDataType()
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@staticmethod
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##
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#
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# Return the value of a point of a "band" from "row" and "coulmn" of
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# the Raster.
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#
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# This method use with care, it has a strong overhead. Use instead
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# the method "walk" to go over the raster.
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#
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# @param band band from which the value should be retrieved
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# @param row row in the raster from which the value should be retrieved
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# @param column column in the raster from which the value should be retrieved
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#
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# @return the value of a point/pixel of a "band" from "row" and "column" of the Raster
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#
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def getData(self, band, row, column):
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return self.getExtensions().getValue(band, row, column)
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@staticmethod
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##
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#
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# Go over the raster and for each point call to the function
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# "operation" and pass as argument a tuple with the values of
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# the point for each band.
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#
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# This method don't return any value
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#
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# @param self pointer to the Layer object
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# @param operation any operation which operates on the raster point-by-point
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#
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# @return None
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#
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def walk(self, operation):
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extension = self.getExtensions()
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store = self.getDataStore()
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sourceExtension = RasterLayerExtensions()
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sourceExtension.createNewBuffer(store.getWidth(), store.getHeight(), store.getBandCount(), store.getDataType())
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for band in xrange(store.getBandCount()):
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for line in xrange(store.getHeight()):
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for column in xrange(store.getWidth()):
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operation(extension.getBandValues(line, column))
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@staticmethod
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##
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#
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# Go over the raster and for each point, taking the neighbour points
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# as a kernel(3x3) call to the function "operation" and pass as argument a
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# tuple with the values of all the points in the kernel for each band.
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#
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# This method don't return any value
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#
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# @param self pointer to the Layer object
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# @param operation any operation which operates on the raster by a kernel(3x3).
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#
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# @return None
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#
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def walkKernel(self, operation):
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extension = self.getExtensions()
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store = self.getDataStore()
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sourceExtension = RasterLayerExtensions()
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sourceExtension.createNewBuffer(store.getWidth(), store.getHeight(), store.getBandCount(), store.getDataType())
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k=0
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l=0
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values = [0 for count in xrange(store.getBandCount())]
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values = [[values for count in xrange(3)] for count in xrange(3)]
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outValues = list()
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for band in xrange(store.getBandCount()):
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for line in xrange(1,store.getHeight()-1):
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for column in xrange(1,store.getWidth()-1):
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i=0
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for k in xrange(line-1,line+2):
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j=0
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for l in xrange(column-1,column+2):
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values[i][j]=extension.getBandValues(k,l)
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j=j+1
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i=i+1
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operation(values)
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@staticmethod
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##
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#
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# Go over the raster and for each point call to the function "filter1"
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# and pass as argument a tuple with the values of all the points in the
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# kernel for each band.
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#
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# The function "filter1" must be such that it takes a tuple, modifies its value
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# and returns a new tuple.
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#
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# This method saves the newly created(filter applied) layer to "targetfilename"
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#
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# @param self pointer to the Layer object
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# @param filter1 any filter which modifies the raster layer point-by-point
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# @param targetfilename filename to which the output layer should be saved
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# @param targetdatatype datatype of which the output layer to be saved (use only TYPE_INT,TYPE_BYTE or TYPE_SHORT as of now)
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# @param targetbandcount number of bands in the output layer
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#
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|
418 |
# @return saves the created layer to "targetfilename" in the current directory
|
|
419 |
#
|
|
420 |
def filter(self, filter1, targetfilename, targetdatatype=None, targetbandcount=None):
|
|
421 |
extension = self.getExtensions()
|
|
422 |
store = self.getDataStore()
|
|
423 |
targetExtension = RasterLayerExtensions()
|
|
424 |
#targetExtension.createNewBuffer(store.getWidth(), store.getHeight(), store.getBandCount(), store.getDataType())
|
|
425 |
targetExtension.createNewBuffer(store.getWidth(), store.getHeight(), targetbandcount, targetdatatype)
|
|
426 |
|
|
427 |
for band in xrange(store.getBandCount()):
|
|
428 |
for line in xrange(store.getHeight()):
|
|
429 |
for column in xrange(store.getWidth()):
|
|
430 |
values = filter1(extension.getBandValues(line,column))
|
|
431 |
targetExtension.setBandValues(line, column, values)
|
|
432 |
|
|
433 |
targetExtension.saveBuffer(targetfilename)
|
|
434 |
|
|
435 |
@staticmethod
|
|
436 |
##
|
|
437 |
#
|
|
438 |
# Go over the raster and for each point, taking the neighbour points
|
|
439 |
# as a kernel(3x3) call to the function "filter1" and pass as argument
|
|
440 |
# a tuple with the values of all the points in the kernel for each band.
|
|
441 |
#
|
|
442 |
# The function "filter1" must be such that it takes a tuple of multi-dimension,
|
|
443 |
# modifies its value and returns a new tuple having dimensions same as input.
|
|
444 |
#
|
|
445 |
# This method saves the newly created(filter applied) layer to "targetfilename"
|
|
446 |
#
|
|
447 |
# @param self pointer to the Layer object
|
|
448 |
# @param filter1 any filter which modifies the raster layer using a kernel(3x3).
|
|
449 |
# @param targetfilename filename to which the output layer should be saved
|
|
450 |
# @param targetdatatype datatype of which the output layer to be saved (use only TYPE_INT,TYPE_BYTE or TYPE_SHORT as of now)
|
|
451 |
# @param targetbandcount number of bands in the output layer
|
|
452 |
#
|
|
453 |
# @return saves the created layer to "targetfilename" in the current directory
|
|
454 |
#
|
|
455 |
def filterKernel(self, filter1, targetfilename, targetdatatype=None, targetbandcount=None):
|
|
456 |
extension = self.getExtensions()
|
|
457 |
store = self.getDataStore()
|
|
458 |
targetExtension = RasterLayerExtensions()
|
|
459 |
#targetExtension.createNewBuffer(store.getWidth(), store.getHeight(), store.getBandCount(), store.getDataType())
|
|
460 |
targetExtension.createNewBuffer(store.getWidth(), store.getHeight(), targetbandcount, targetdatatype)
|
|
461 |
|
|
462 |
k=0
|
|
463 |
l=0
|
|
464 |
values = [0 for count in xrange(store.getBandCount())]
|
|
465 |
values = [[values for count in xrange(3)] for count in xrange(3)]
|
|
466 |
outValues = list()
|
|
467 |
for band in xrange(store.getBandCount()):
|
|
468 |
for line in xrange(1,store.getHeight()-1):
|
|
469 |
for column in xrange(1,store.getWidth()-1):
|
|
470 |
|
|
471 |
i=0
|
|
472 |
for k in xrange(line-1,line+2):
|
|
473 |
j=0
|
|
474 |
for l in xrange(column-1,column+2):
|
|
475 |
values[i][j]=extension.getBandValues(k,l)
|
|
476 |
j=j+1
|
|
477 |
i=i+1
|
|
478 |
outValues = filter1(values)
|
|
479 |
targetExtension.setBandValues(line, column, outValues)
|
|
480 |
|
|
481 |
targetExtension.saveBuffer(targetfilename)
|
|
482 |
|
|
483 |
@staticmethod
|
|
484 |
##
|
|
485 |
#
|
|
486 |
# Go over the raster layer and for each point call to the function "operation" and
|
|
487 |
# pass as arguments two tuples (One corresponding to the first layer at that point,
|
|
488 |
# the other corresponding to the second layer at the same point) with the values of
|
|
489 |
# each point for each band.
|
|
490 |
#
|
|
491 |
# The function "operation" must be such that it takes two tuples as input, performs
|
|
492 |
# operations involving both of them and returns a new tuple.
|
|
493 |
#
|
|
494 |
# This method saves the newly created(from the two rasters) layer to "targetfilename"
|
|
495 |
#
|
|
496 |
# @param self pointer to the Layer object
|
|
497 |
# @param operation any operation which operates on both the raster layers at a respective point/pixel.
|
|
498 |
# @param layer2 the layer which forms the second input to the "operation" function.
|
|
499 |
# @param targetfilename filename to which the output layer should be saved
|
|
500 |
# @param targetdatatype datatype of which the output layer to be saved (use only TYPE_INT,TYPE_BYTE or TYPE_SHORT as of now)
|
|
501 |
#
|
|
502 |
# @return saves the created layer to "targetfilename" in the current directory
|
|
503 |
#
|
|
504 |
def operation(self, operation, layer2, targetfilename, targetdatatype=None):
|
|
505 |
layer1Extension = self.getExtensions()
|
|
506 |
layer2Extension = layer2.getExtensions()
|
|
507 |
|
|
508 |
layer1Store = self.getDataStore()
|
|
509 |
layer2Store = layer2.getDataStore()
|
|
510 |
|
|
511 |
bandCount = layer1Store.getBandCount()
|
|
512 |
layerWidth = layer1Store.getWidth()
|
|
513 |
layerHeight = layer1Store.getHeight()
|
|
514 |
targetExtension = RasterLayerExtensions()
|
|
515 |
resultValues = list()
|
|
516 |
#targetExtension.createNewBuffer(layerWidth, layerHeight, bandCount, layer1Store.getDataType())
|
|
517 |
targetExtension.createNewBuffer(layerWidth, layerHeight, bandCount, targetdatatype)
|
|
518 |
|
|
519 |
for band in xrange(bandCount):
|
|
520 |
for line in xrange(layerHeight):
|
|
521 |
for column in xrange(layerWidth):
|
|
522 |
layer1Values = layer1Extension.getBandValues(line, column)
|
|
523 |
layer2Values = layer2Extension.getBandValues(line, column)
|
|
524 |
resultValues = operation(layer1Values, layer2Values)
|
|
525 |
targetExtension.setBandValues(line, column, resultValues)
|
|
526 |
|
|
527 |
targetExtension.saveBuffer(targetfilename)
|
|
528 |
|
|
529 |
@staticmethod
|
|
530 |
##
|
|
531 |
#
|
|
532 |
# Go over the raster layer and for each point, taking the neighbour points as a
|
|
533 |
# kernel(3x3) call to the function "operation" and pass as arguments two tuples
|
|
534 |
# (One corresponding to the first layer at that point, the other corresponding
|
|
535 |
# to the second layer at the same point) with the values of all the points of the
|
|
536 |
# kernel for each band.
|
|
537 |
#
|
|
538 |
# The function "operation" must be such that it takes two tuples of multiple
|
|
539 |
# dimensions as input, performs operations involving both of them and returns a
|
|
540 |
# new tuple having dimensions same as input tuples.
|
|
541 |
#
|
|
542 |
# This method saves the newly created(from the two rasters) layer to "targetfilename"
|
|
543 |
#
|
|
544 |
# @param self pointer to the Layer object
|
|
545 |
# @param operation any operation which operates on both the raster layers at a respective point/pixel but involving kernel(3x3)[neighbour points].
|
|
546 |
# @param layer2 the layer which forms the second input to the "operation" function.
|
|
547 |
# @param targetfilename filename to which the output layer should be saved
|
|
548 |
# @param targetdatatype datatype of which the output layer to be saved (use only TYPE_INT,TYPE_BYTE or TYPE_SHORT as of now)
|
|
549 |
#
|
|
550 |
# @return saves the created layer to "targetfilename" in the current directory
|
|
551 |
#
|
|
552 |
def operationKernel(self, operation, layer2, targetfilename, targetdatatype=None):
|
|
553 |
layer1Extension = self.getExtensions()
|
|
554 |
layer2Extension = self.getExtensions()
|
|
555 |
|
|
556 |
layer1Store = self.getDataStore()
|
|
557 |
layer2Store = layer2.getDataStore()
|
|
558 |
|
|
559 |
bandCount = layer1Store.getBandCount()
|
|
560 |
layerWidth = layer1Store.getWidth()
|
|
561 |
layerHeight = layer1Store.getHeight()
|
|
562 |
targetExtension = RasterLayerExtensions()
|
|
563 |
#targetExtension.createNewBuffer(layerWidth, layerHeight, bandCount, layer1Store.getDataType())targetExtension.createNewBuffer(layerWidth, layerHeight, bandCount, layer1Store.getDataType())
|
|
564 |
targetExtension.createNewBuffer(layerWidth, layerHeight, bandCount, targetdatatype)
|
|
565 |
|
|
566 |
k=0
|
|
567 |
l=0
|
|
568 |
values1 = [[[None for count in range(bandCount)] for count in range(3)] for count in range(3)]
|
|
569 |
values2 = [[[None for count in range(bandCount)] for count in range(3)] for count in range(3)]
|
|
570 |
outValues = list()
|
|
571 |
for band in xrange(bandCount):
|
|
572 |
for line in xrange(1,layerHeight-1):
|
|
573 |
for column in xrange(1,layerWidth-1):
|
|
574 |
|
|
575 |
i=0
|
|
576 |
for k in xrange(line-1,line+2):
|
|
577 |
j=0
|
|
578 |
for l in xrange(column-1,column+2):
|
|
579 |
values1[i][j]=layer1Extension.getBandValues(k,l)
|
|
580 |
#print i,j,values1[i][j]
|
|
581 |
#print values1
|
|
582 |
values2[i][j]=layer2Extension.getBandValues(k,l)
|
|
583 |
j=j+1
|
|
584 |
i=i+1
|
|
585 |
|
|
586 |
outValues = operation(values1, values2)
|
|
587 |
i=0
|
|
588 |
for k in xrange(line-1,line+2):
|
|
589 |
j=0
|
|
590 |
for l in xrange(column-1,column+2):
|
|
591 |
targetExtension.setBandValues(k,l, outValues[i][j])
|
|
592 |
j=j+1
|
|
593 |
i=i+1
|
|
594 |
|
|
595 |
targetExtension.saveBuffer(targetfilename)
|
|
596 |
|
|
597 |
|
|
598 |
#
|
|
599 |
# Inject new methods in the class FLyrRaster
|
|
600 |
#
|
|
601 |
FLyrRaster.getExtensions = RasterLayer.getExtensions
|
|
602 |
FLyrRaster.getBandsCount = RasterLayer.getBandsCount
|
|
603 |
FLyrRaster.getWidth = RasterLayer.getWidth
|
|
604 |
FLyrRaster.getHeight = RasterLayer.getHeight
|
|
605 |
FLyrRaster.getDataType = RasterLayer.getDataType
|
|
606 |
FLyrRaster.getData = RasterLayer.getData
|
|
607 |
FLyrRaster.walk = RasterLayer.walk
|
|
608 |
FLyrRaster.walkKernel = RasterLayer.walkKernel
|
|
609 |
FLyrRaster.filter = RasterLayer.filter
|
|
610 |
FLyrRaster.filterKernel = RasterLayer.filterKernel
|
|
611 |
FLyrRaster.operation = RasterLayer.operation
|
|
612 |
FLyrRaster.operationKernel = RasterLayer.operationKernel
|