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user 2856
Data about data
1
vote
Accepted
Editing shapefile Item Description > Summary in ArcPy?
Then, the
updated XML document must be saved back to the original ArcGIS item as
its metadata using the Metadata Importer tool. … There is a 3rd party python library that automates this - Arcpy Metadata Editor (arcpy_metadata)
Note if using ArcGIS Desktop, these metadata tools are only available in 32bit Python (i.e. not the 64bit …
- 69.6k
2
votes
Accepted
Figuring out aduisition dates of images from file names using Earthexplorer
The date in your example is a day of year (or julian day). The 2021.238-248 means the 238th to the 248th day of 2021 and can be converted to dd/mm/yyyy using a number of online lookups or converters. …
- 69.6k
5
votes
Accepted
How to read/write ENVI metadata using GDAL?
"Starting with GDAL 1.10..."
"I am using the Python bindings with GDAL 1.9.2..."
GDAL 1.10 hasn't been released yet. Beta 1 was released a short while ago or if you're using Windows, you can grab a …
- 69.6k
5
votes
Accepted
Setting metadata options for ouput GeoTIFF when using gdalwarp?
-tr 15 15 -r bilinear \
-wm 4096 -multi \
-co NUM_THREADS=ALL_CPUS \
-srcnodata "-32767" \
mosaic_dem_cded_4269.vrt dem_3005.vrt
gdal_translate -mo "your metadata …
- 69.6k
4
votes
Writing ISO 19139 compliant XML metadata from spreadsheet?
Here's some example code:
from lxml import etree
import os.path
def list_to_xml(datalist,rootname):
'''Transform a metadata record to a flat XML string'''
root = etree.Element(rootname) …
- 69.6k
1
vote
Editing raster band metadata using GDAL?
Use gdal_edit.py -unsetstats your_raster_file arg to remove existing stats, then gdalinfo -stats your_raster_file to recalculate them.
https://www.gdal.org/gdal_edit.html
https://www.gdal.org/gdalin …
- 69.6k
3
votes
Accepted
Applying equation to a Numpy array while preserving TIFF metadata (coordinates)
You open and read the input raster as a numpy array, run your calculation, open the output raster in 'w' write mode and use the georeferencing and other metadata (aka the profile) from the input raster … with rio.open('BIOout.tif', 'w', **profile) as dst: # open raster dataset in 'w' write mode using the
dst.write(bio) # georeferencing and other metadata from ndvi.tif …
- 69.6k
1
vote
Accepted
Updating metadata in geodatabase using fiona
fiona dataset .meta and .profile attributes are data source properties (e.g. driver, schema, crs) not content metadata.
Dataset tags can be used for this purpose. …
- 69.6k
1
vote
Accepted
Change raster `nodata` to nan on python
Open the dataset in append mode "r+" and then set dataset.nodata (source):
with rio.open(src_filename, "r+") as src:
src.nodata = np.nan
For example:
import numpy as np
import rasterio as rio
…
- 69.6k
17
votes
Accepted
How to edit the metadata for individual bands of a multiband raster, preferably with GDAL?
You can use a simple python script that uses the Band.SetDescription method to set the band names:
"""
Set Band descriptions
Usage:
python set_band_desc.py /path/to/file.ext band desc [band desc. …
- 69.6k
22
votes
Accepted
Rasterio: Use case for src.meta vs. src.profile when reading and writing rasters?
The meta property contains the basic raster metadata:
driver, dtype, nodata, width, height, count, crs, transform
The profile property is a super set of meta which includes dataset creation options:
meta …
- 69.6k
10
votes
Add bands' name and description to the Metadata when stacking using rasterio
If using rasterio >= 1.0, use the dataset.set_band_description(self, bidx, value) method and dataset.descriptions property.
Sets the description of a dataset band.
Parameters
----------
bidx : int
…
- 69.6k