Python Product示例

示例#1

文件： beampy_ndvi.py 项目： bcdev/beam-extapi

file = sys.argv[1]

product     = ProductIO.readProduct(file)
width       = product.getSceneRasterWidth()
height      = product.getSceneRasterHeight()
name        = product.getName()
description = product.getDescription()
band_names  = product.getBandNames()

print("Product: %s, %d x %d pixels, %s" % (name, width, height, description))
print("Bands:   %s" % (band_names))

b7 = product.getBand('radiance_7')
b10 = product.getBand('radiance_10')
ndviProduct = Product.newProduct('NDVI', 'NDVI', width, height)
ndviBand = ndviProduct.addNewBand('ndvi', ProductData.TYPE_FLOAT32)
ndviFlagsBand = ndviProduct.addNewBand('ndvi_flags', ProductData.TYPE_UINT8)
writer = ProductIO.getProductWriter('BEAM-DIMAP')

ProductUtils.copyGeoCoding(product, ndviProduct)

ndviFlagCoding = FlagCoding.newFlagCoding('ndvi_flags')
ndviFlagCoding.addFlag("NDVI_LOW", 1, "NDVI below 0")
ndviFlagCoding.addFlag("NDVI_HIGH", 2, "NDVI above 1")
ndviProduct.getFlagCodingGroup().add(ndviFlagCoding)

ndviFlagsBand.setSampleCoding(ndviFlagCoding)

ndviProduct.setProductWriter(writer)
ndviProduct.writeHeader(String.newString('ndvi.dim'))

示例#2

文件： beampy_flh.py 项目： bcdev/beam-extapi

    sys.exit(1)

sourceProduct = ProductIO.readProduct(sys.argv[1])
b1 = sourceProduct.getBand('reflec_5')
b2 = sourceProduct.getBand('reflec_7')
b3 = sourceProduct.getBand('reflec_9')
w1 = b1.getSpectralWavelength()
w2 = b2.getSpectralWavelength()
w3 = b3.getSpectralWavelength()
a = (w2 - w1) / (w3 - w1)
k = 1.03

width = sourceProduct.getSceneRasterWidth()
height = sourceProduct.getSceneRasterHeight()
targetName = 'FLH_Product'
targetProduct = Product.newProduct(targetName, 'test', width, height)
targetBand = targetProduct.addNewBand('FLH', ProductData.TYPE_FLOAT32)
ProductUtils.copyGeoCoding(sourceProduct, targetProduct)
targetProduct.setProductWriter(ProductIO.getProductWriter('GeoTIFF'))
targetProduct.writeHeader(String.newString(targetName + '.tif'))

r1 = numpy.zeros(width, dtype=numpy.float32)
r2 = numpy.zeros(width, dtype=numpy.float32)
r3 = numpy.zeros(width, dtype=numpy.float32)

for y in range(height):
    b1.readPixelsFloat(0, y, width, 1, r1)
    b2.readPixelsFloat(0, y, width, 1, r2)
    b2.readPixelsFloat(0, y, width, 1, r3)
    print("processing line ", y, " of ", height)
    FLH = r2 – k * (r1 + a * (r3 – r1))

示例#3

文件： beampy_ndvi.py 项目： bcdev/beam

width = product.getSceneRasterWidth()
height = product.getSceneRasterHeight()
name = product.getName()
description = product.getDescription()
band_names = product.getBandNames()

print("Product:     %s, %s" % (name, description))
print("Raster size: %d x %d pixels" % (width, height))
print("Start time:  " + str(product.getStartTime()))
print("End time:    " + str(product.getEndTime()))
print("Bands:       %s" % (list(band_names)))


b7 = product.getBand("radiance_7")
b10 = product.getBand("radiance_10")
ndviProduct = Product("NDVI", "NDVI", width, height)
ndviBand = ndviProduct.addBand("ndvi", ProductData.TYPE_FLOAT32)
ndviFlagsBand = ndviProduct.addBand("ndvi_flags", ProductData.TYPE_UINT8)
writer = ProductIO.getProductWriter("BEAM-DIMAP")

ProductUtils.copyGeoCoding(product, ndviProduct)

ndviFlagCoding = FlagCoding("ndvi_flags")
ndviFlagCoding.addFlag("NDVI_LOW", 1, "NDVI below 0")
ndviFlagCoding.addFlag("NDVI_HIGH", 2, "NDVI above 1")
group = ndviProduct.getFlagCodingGroup()
# print(dir(group))
group.add(ndviFlagCoding)

ndviFlagsBand.setSampleCoding(ndviFlagCoding)

示例#4

文件： beampy_ndvi_with_masks.py 项目： bcdev/beam-extapi

    printf("usage: %s <file>", sys.argv[0])
    sys.exit(1)

product = ProductIO.readProduct(sys.argv[1])
width = product.getSceneRasterWidth()
height = product.getSceneRasterHeight()
name = product.getName()
desc = product.getDescription()
band_names = product.getBandNames()

print("Product: %s, %d x %d pixels, %s" % (name, width, height, desc))
print("Bands:   %s" % (band_names))

b7 = product.getBand('radiance_7')
b10 = product.getBand('radiance_10')
ndviProduct = Product.newProduct('NDVI', 'NDVI', width, height)
ndviBand = ndviProduct.addNewBand('ndvi', ProductData.TYPE_FLOAT32)
ndviBand.setNoDataValue(numpy.nan)
ndviBand.setNoDataValueUsed(True)

writer = ProductIO.getProductWriter('BEAM-DIMAP')

ProductUtils.copyGeoCoding(product, ndviProduct)

ndviProduct.setProductWriter(writer)
ndviProduct.writeHeader(String.newString('ndvi.dim'))

r7 = numpy.zeros(width, dtype=numpy.float32)
r10 = numpy.zeros(width, dtype=numpy.float32)

v7 = numpy.zeros(width, dtype=numpy.uint8)

示例#5

#beampy.SystemUtils.init3rdPartyLibs(None)  # Initialise BEAM's third party Java libraries JAI and GeoTools.

print("Reading...")
sourceProduct = ProductIO.readProduct(sys.argv[1])
b1 = sourceProduct.getBand('reflec_5')
b2 = sourceProduct.getBand('reflec_7')
b3 = sourceProduct.getBand('reflec_9')
w1 = b1.getSpectralWavelength()
w2 = b2.getSpectralWavelength()
w3 = b3.getSpectralWavelength()
a = (w2 - w1) / (w3 - w1)
k = 1.03

width = sourceProduct.getSceneRasterWidth()
height = sourceProduct.getSceneRasterHeight()
targetProduct = Product('FLH_Product', 'FLH_Type', width, height)
targetBand = targetProduct.addBand('FLH', ProductData.TYPE_FLOAT32)
ProductUtils.copyGeoCoding(sourceProduct, targetProduct)
targetProduct.setProductWriter(ProductIO.getProductWriter('GeoTIFF'))

targetProduct.writeHeader(String('beampy_flh_output.tif'))

r1 = numpy.zeros(width, dtype=numpy.float32)
r2 = numpy.zeros(width, dtype=numpy.float32)
r3 = numpy.zeros(width, dtype=numpy.float32)

print("Writing...")

for y in range(height):
    b1.readPixels(0, y, width, 1, r1)
    b2.readPixels(0, y, width, 1, r2)

示例#6

文件： beampy_ndvi_with_masks.py 项目： VipWangQiaoqiao/SeaDAS

print("Reading...")
product = ProductIO.readProduct(sys.argv[1])
width = product.getSceneRasterWidth()
height = product.getSceneRasterHeight()
name = product.getName()
desc = product.getDescription()
band_names = product.getBandNames()

print("Product: %s, %d x %d pixels, %s" % (name, width, height, desc))
print("Bands:   %s" % (band_names))

b7 = product.getBand('radiance_7')
b10 = product.getBand('radiance_10')
ndviProduct = Product('NDVI', 'NDVI', width, height)
ndviBand = ndviProduct.addBand('ndvi', ProductData.TYPE_FLOAT32)
ndviBand.setNoDataValue(numpy.nan)
ndviBand.setNoDataValueUsed(True)

writer = ProductIO.getProductWriter('BEAM-DIMAP')

ProductUtils.copyGeoCoding(product, ndviProduct)

ndviProduct.setProductWriter(writer)
ndviProduct.writeHeader(String('beampy_ndvi_with_masks_output.dim'))

r7  = numpy.zeros(width, dtype=numpy.float32)
r10 = numpy.zeros(width, dtype=numpy.float32)

v7  = numpy.zeros(width, dtype=numpy.uint8)

示例#7

product = ProductIO.readProduct(file)
width = product.getSceneRasterWidth()
height = product.getSceneRasterHeight()
name = product.getName()
description = product.getDescription()
band_names = product.getBandNames()

print("Product:     %s, %s" % (name, description))
print("Raster size: %d x %d pixels" % (width, height))
print("Start time:  " + str(product.getStartTime()))
print("End time:    " + str(product.getEndTime()))
print("Bands:       %s" % (list(band_names)))

b7 = product.getBand('radiance_7')
b10 = product.getBand('radiance_10')
ndviProduct = Product('NDVI', 'NDVI', width, height)
ndviBand = ndviProduct.addBand('ndvi', ProductData.TYPE_FLOAT32)
ndviFlagsBand = ndviProduct.addBand('ndvi_flags', ProductData.TYPE_UINT8)
writer = ProductIO.getProductWriter('BEAM-DIMAP')

ProductUtils.copyGeoCoding(product, ndviProduct)

ndviFlagCoding = FlagCoding('ndvi_flags')
ndviFlagCoding.addFlag("NDVI_LOW", 1, "NDVI below 0")
ndviFlagCoding.addFlag("NDVI_HIGH", 2, "NDVI above 1")
group = ndviProduct.getFlagCodingGroup()
#print(dir(group))
group.add(ndviFlagCoding)

ndviFlagsBand.setSampleCoding(ndviFlagCoding)

示例#8

#beampy.SystemUtils.init3rdPartyLibs(None)  # Initialise BEAM's third party Java libraries JAI and GeoTools.

print("Reading...")
product = ProductIO.readProduct(sys.argv[1])
width = product.getSceneRasterWidth()
height = product.getSceneRasterHeight()
name = product.getName()
desc = product.getDescription()
band_names = product.getBandNames()

print("Product: %s, %d x %d pixels, %s" % (name, width, height, desc))
print("Bands:   %s" % (band_names))

b7 = product.getBand('radiance_7')
b10 = product.getBand('radiance_10')
ndviProduct = Product('NDVI', 'NDVI', width, height)
ndviBand = ndviProduct.addBand('ndvi', ProductData.TYPE_FLOAT32)
ndviBand.setNoDataValue(numpy.nan)
ndviBand.setNoDataValueUsed(True)

writer = ProductIO.getProductWriter('BEAM-DIMAP')

ProductUtils.copyGeoCoding(product, ndviProduct)

ndviProduct.setProductWriter(writer)
ndviProduct.writeHeader(String('beampy_ndvi_with_masks_output.dim'))

r7 = numpy.zeros(width, dtype=numpy.float32)
r10 = numpy.zeros(width, dtype=numpy.float32)

v7 = numpy.zeros(width, dtype=numpy.uint8)