GDAL - Polygonize multiband raster and save pixel values of each band to corresponding attribute fields Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern) Announcing the arrival of Valued Associate #679: Cesar Manara Unicorn Meta Zoo #1: Why another podcast?GDAL polygonize only certain raster valuesPolygonize a raster using GDAL JAVA bindings - passing raster pixel value to the resulting featureWhy does the composite raster pixel values not cover the full range of RGB and what does this mean for reclassification after conversion to int?Obtain coordinates and corresponding pixel values from GeoTiff using python gdal and save them as numpy arrayExtract All Pixel Values for each band in a Multi Band RasterMultiband to single band rasterSave multiband raster with gdalPolygonize a multi-band rasterGdal Polygonize, empty attribute tableHow to polygonize raster file according to band values?
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GDAL - Polygonize multiband raster and save pixel values of each band to corresponding attribute fields
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)
Announcing the arrival of Valued Associate #679: Cesar Manara
Unicorn Meta Zoo #1: Why another podcast?GDAL polygonize only certain raster valuesPolygonize a raster using GDAL JAVA bindings - passing raster pixel value to the resulting featureWhy does the composite raster pixel values not cover the full range of RGB and what does this mean for reclassification after conversion to int?Obtain coordinates and corresponding pixel values from GeoTiff using python gdal and save them as numpy arrayExtract All Pixel Values for each band in a Multi Band RasterMultiband to single band rasterSave multiband raster with gdalPolygonize a multi-band rasterGdal Polygonize, empty attribute tableHow to polygonize raster file according to band values?
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I'm trying to polygonize 2 band raster(which was previously reclassified) and put values of each band into seperate attribute table column. Both bands overlap each other perfectly.
This piece of code works perfectly for 1 band rasters:
shapeFile = "shape1.shp"
driver = ogr.GetDriverByName("ESRI Shapefile")
outDS = driver.CreateDataSource(shapeFile)
outLayer = outDS.CreateLayer("lyr1", srs)
f1 = ogr.FieldDefn('DN', ogr.OFTInteger)
f2 = ogr.FieldDefn('DIF', ogr.OFTInteger)
outLayer.CreateField(f1)
outLayer.CreateField(f2)
gdal.Polygonize(raster.dataset.GetRasterBand(1), rasterMask, outLayer, 0, [], callback=None )
#gdal.Polygonize(raster.dataset.GetRasterBand(2), rasterMask, outLayer, 1, [], callback=None )
However the commented piece of code where I try to put pixel values of 2nd band into the 'DIF' field doesn't work (and it's field index is 1, I've checked that).
The Polygnize function doesn't seem to have an option for multiple band rasters and I'm not sure if calling it 2 times in a row is even a good idea.
I was thinking of polygonizing each band to a different shapefile and then somehow merging those shapefiles to match each field value but I'm not even sure if that's possible.
How should I proceed?
python gdal polygonize multi-band
asked Apr 11 at 16:42
AAAAAA
111
add a comment |
I'm trying to polygonize 2 band raster(which was previously reclassified) and put values of each band into seperate attribute table column. Both bands overlap each other perfectly.
This piece of code works perfectly for 1 band rasters:
shapeFile = "shape1.shp"
driver = ogr.GetDriverByName("ESRI Shapefile")
outDS = driver.CreateDataSource(shapeFile)
outLayer = outDS.CreateLayer("lyr1", srs)
f1 = ogr.FieldDefn('DN', ogr.OFTInteger)
f2 = ogr.FieldDefn('DIF', ogr.OFTInteger)
outLayer.CreateField(f1)
outLayer.CreateField(f2)
gdal.Polygonize(raster.dataset.GetRasterBand(1), rasterMask, outLayer, 0, [], callback=None )
#gdal.Polygonize(raster.dataset.GetRasterBand(2), rasterMask, outLayer, 1, [], callback=None )
However the commented piece of code where I try to put pixel values of 2nd band into the 'DIF' field doesn't work (and it's field index is 1, I've checked that).
The Polygnize function doesn't seem to have an option for multiple band rasters and I'm not sure if calling it 2 times in a row is even a good idea.
I was thinking of polygonizing each band to a different shapefile and then somehow merging those shapefiles to match each field value but I'm not even sure if that's possible.
How should I proceed?
python gdal polygonize multi-band
asked Apr 11 at 16:42
AAAAAA
111
add a comment |
I'm trying to polygonize 2 band raster(which was previously reclassified) and put values of each band into seperate attribute table column. Both bands overlap each other perfectly.
This piece of code works perfectly for 1 band rasters:
shapeFile = "shape1.shp"
driver = ogr.GetDriverByName("ESRI Shapefile")
outDS = driver.CreateDataSource(shapeFile)
outLayer = outDS.CreateLayer("lyr1", srs)
f1 = ogr.FieldDefn('DN', ogr.OFTInteger)
f2 = ogr.FieldDefn('DIF', ogr.OFTInteger)
outLayer.CreateField(f1)
outLayer.CreateField(f2)
gdal.Polygonize(raster.dataset.GetRasterBand(1), rasterMask, outLayer, 0, [], callback=None )
#gdal.Polygonize(raster.dataset.GetRasterBand(2), rasterMask, outLayer, 1, [], callback=None )
However the commented piece of code where I try to put pixel values of 2nd band into the 'DIF' field doesn't work (and it's field index is 1, I've checked that).
The Polygnize function doesn't seem to have an option for multiple band rasters and I'm not sure if calling it 2 times in a row is even a good idea.
I was thinking of polygonizing each band to a different shapefile and then somehow merging those shapefiles to match each field value but I'm not even sure if that's possible.
How should I proceed?
python gdal polygonize multi-band
asked Apr 11 at 16:42
AAAAAA
111
I'm trying to polygonize 2 band raster(which was previously reclassified) and put values of each band into seperate attribute table column. Both bands overlap each other perfectly.
This piece of code works perfectly for 1 band rasters:
shapeFile = "shape1.shp"
driver = ogr.GetDriverByName("ESRI Shapefile")
outDS = driver.CreateDataSource(shapeFile)
outLayer = outDS.CreateLayer("lyr1", srs)
f1 = ogr.FieldDefn('DN', ogr.OFTInteger)
f2 = ogr.FieldDefn('DIF', ogr.OFTInteger)
outLayer.CreateField(f1)
outLayer.CreateField(f2)
gdal.Polygonize(raster.dataset.GetRasterBand(1), rasterMask, outLayer, 0, [], callback=None )
#gdal.Polygonize(raster.dataset.GetRasterBand(2), rasterMask, outLayer, 1, [], callback=None )
However the commented piece of code where I try to put pixel values of 2nd band into the 'DIF' field doesn't work (and it's field index is 1, I've checked that).
The Polygnize function doesn't seem to have an option for multiple band rasters and I'm not sure if calling it 2 times in a row is even a good idea.
I was thinking of polygonizing each band to a different shapefile and then somehow merging those shapefiles to match each field value but I'm not even sure if that's possible.
How should I proceed?
python gdal polygonize multi-band
python gdal polygonize multi-band
asked Apr 11 at 16:42
AAAAAA
111
asked Apr 11 at 16:42
AAAAAA
111
asked Apr 11 at 16:42
AAAAAA
111
asked Apr 11 at 16:42
AAAAAA
111
asked Apr 11 at 16:42
AAAAAA
111
111
add a comment |
add a comment |
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