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55 lines
2.7 KiB
Python
55 lines
2.7 KiB
Python
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from sextante.script.ScriptAlgorithm import ScriptAlgorithm
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from sextante.parameters.ParameterRaster import ParameterRaster
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from sextante.outputs.OutputRaster import OutputRaster
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from sextante.core.GeoAlgorithm import GeoAlgorithm
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from sextante.pymorph.AlgNames import AlgNames
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import os
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class PymorphAlgorithm(ScriptAlgorithm):
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LOAD_LAYER_SCRIPT = "from sextante.gdal.GdalUtils import GdalUtils\n" \
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+"from sextante.pymorph.mmorph import datatype\n" \
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+ "import numpy\n" \
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+"gdal_datatypes={'binary':'Byte','uint8':'Byte','uint16':'UInt16','int32':'Int32'}\n" \
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+ "try:\n" \
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+ "\tfrom osgeo import gdal\n" \
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+ "except ImportError:\n" \
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+ "\timport gdal\n" \
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+ "gdal.AllRegister()\n" \
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+ "img = gdal.Open(input_filename)\n"\
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+ "input_array = img.ReadAsArray()\n" \
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+ "if isinstance(input_array[0][0], (numpy.float32, numpy.float64)):\n" \
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+ "\tinput_array = input_array.astype(numpy.int32)\n"
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SAVE_LAYER_SCRIPT = "\ndrv = gdal.GetDriverByName(GdalUtils.getFormatShortNameFromFilename(output_filename))\n" \
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+ "out = drv.Create(output_filename, img.RasterXSize, img.RasterYSize, 1, gdal.GetDataTypeByName('UInt16'))\n"\
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+ "out.SetGeoTransform( img.GetGeoTransform())\n"\
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+ "out.SetProjection( img.GetProjectionRef())\n"\
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+ "out.GetRasterBand(1).WriteArray(output_array)"
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#gdal_datatypes[datatype(output_array)]
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def getCopy(self):
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newone = PymorphAlgorithm(self.descriptionFile)
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newone.provider = self.provider
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return newone
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def getIcon(self):
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return GeoAlgorithm.getIcon(self)
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def defineCharacteristicsFromFile(self):
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ScriptAlgorithm.defineCharacteristicsFromFile(self)
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self.parameters.insert(0, ParameterRaster("input_filename", "Input image", False))
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self.outputs.append(OutputRaster("output_filename", "Output image"))
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self.script = self.LOAD_LAYER_SCRIPT + self.script + self.SAVE_LAYER_SCRIPT
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self.cmdname = self.name
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self.name = AlgNames.getName(self.name)
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def helpFile(self):
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command = os.path.basename(self.descriptionFile)
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command = command[:command.rfind(".")].replace("_", "")
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filename = os.path.dirname(__file__) + "/html/morph/morph/mm" + command + ".html"
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return filename
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def commandLineName(self):
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return "pymorph:" + ":" + self.cmdname
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