ok, if I execute my code now I get another error:
File “<'ipython-input-86-29d76134b16e>”, line 13, in
Mosaic = GPF.createProduct(‘Mosaic’, parameters, products)
RuntimeError: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
This is the code snippet:
bandsok = ['B2','B3','B4','B8']
products = jpy.array('org.esa.snap.core.datamodel.Product', 2)
products[0] = ProductIO.readProduct(sourcePath1)
products[1] = ProductIO.readProduct(sourcePath2)
Variable = jpy.get_type('org.esa.snap.core.gpf.common.MosaicOp$Variable')
Vars = jpy.array('org.esa.snap.core.gpf.common.MosaicOp$Variable', len(bandsok))
ii=0
for band in bandsok:
Vars[ii] = Variable(band, band)
ii += 1
parameters = HashMap()
parameters.put('variables',Vars)
Mosaic = GPF.createProduct('Mosaic', parameters, products)
But I have no object with 0 elements or anyway either products or parameters have elements…what’s the problem here?
Thank you very much for your replies.
Hello @obarrilero, thank you very much for your answer! I thought that by using only 10m bands I could avoid resampling. I understand, do you suggest the first or second option? By resampling a 10m band into 10m pixels I’m supposed to get a nearly (if not completely) identical image right?
EDIT: I chose to resample the images and it now works fine thank you!
I was using code similar to the upper one by @atteggiani .
My products are just two tiff images, resampled, 750 MB each, with R-G-B channels only.
The I called the code for mosaicing and it was working for about an hour and in the end it gave an error
The thing is that I ran out of space on my D drive. Unfinished mosaic was as big as 150 GB!!! Still, this was just a test. I planned to do mosaicing for many more images at once.
Any solution to this? Comment?
pixelSize is 10 m, but I haven’t set the bounds. I considered it will be recognized somehow by sanppy. I guess that could be the reason. Now I see that by default BB is quite large area.
I am also trying to create a mosaic of Sentinel-2 images using python, but can’t get it working.
When I try to run the below code I get the error: RuntimeError: org.esa.snap.core.gpf.OperatorException.
It looks like it is not able to run the following line in execfile: exec(compile(scripttext, filename, ‘exec’), glob, loc)
This is my code:
import snappy
import os
from snappy import ProductIO
from snappy import GPF
from snappy import HashMap
# input directory with all products
input_file_dir = 'G:\\S2\\2015_iCOR_combined\\2015_07_06_60m'
# output folder
output_dir = 'G:\\S2\\iCOR_mosaics\\60m'
parameters = HashMap()
parameters.put('combine', 'OR')
parameters.put('combine', 'OR')
parameters.put('resampling', 'Nearest')
parameters.put('crs', 'EPSG:4326' )
parameters.put('westBound', '1.363832199040854')
parameters.put('northBound', '52.57995161281976')
parameters.put('eastBound', '6.224271638606645')
parameters.put('southBound', '50.25859695650797')
parameters.put('pixelSizeX', 60.0)
parameters.put('pixelSizeY', 60.0)
# creating file with input images
products = []
for product in os.listdir(input_file_dir):
products.append(ProductIO.readProduct(os.path.join(input_file_dir, product)))
# creating mosaic
Mosaic = GPF.createProduct('Mosaic', parameters, products)
# Writing output
ProductIO.writeProduct(Mosaic, os.path.join(output_dir, '2015_07_06'), 'BEAM-DIMAP')
products are by my idea correct:
[org.esa.snap.core.datamodel.Product(objectRef=0x000000002E611228), org.esa.snap.core.datamodel.Product(objectRef=0x000000002E611200), org.esa.snap.core.datamodel.Product(objectRef=0x000000002E6111E8), org.esa.snap.core.datamodel.Product(objectRef=0x000000002E6111C0), org.esa.snap.core.datamodel.Product(objectRef=0x000000002E6111B0), org.esa.snap.core.datamodel.Product(objectRef=0x000000002E610EA8)]
I hope someone can help me out with this problem .
p.s. If I use snap desktop with these images and with similar settings it works correctly.
thank you!
.