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Questions tagged [bigtiff]

An evolution of the TIFF format that uses 64bit offsets and supports file sizes larger than 4 GB

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0answers
30 views

Compression not applying when updating/exiting GeoTiff file in GDAL?

I have a GeoTiff file with dimensions 300 x 300 and 8760 bands (hourly for one full year). I am testing some code that opens the file, updates ONE band and exits - but I am finding that the file size ...
0
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0answers
205 views

Error while creating large TIFF with gdal_merge

I need to merge two TIFFs into one, but the output is larger than 4 GB. So, it needs to be a BigTIFF. But the "BIGTIFF=YES" creation option seems to be ignored. Here's the error: $ gdal_merge.py -...
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1answer
127 views

Seeking workflow to build cloud optimized tif?

By its definition, a cloud optimized GeoTIFF is a regular GeoTIFF file, aimed at being hosted on a HTTP file server, whose internal organization is friendly for consumption by clients issuing. Based ...
1
vote
1answer
216 views

Saving raster to BigTIFF in QGIS?

Using QGIS 3.4, I am trying to merge multiple DEMs downloaded from the National Map Viewer that are in ArcGRID format (Arc/Info Binary Grid). The output will be a large file so I can't use any of the ...
1
vote
1answer
224 views

Large Export Issues - QGIS 3.2.2

Still pretty new to GIS, but Ive been working on assembling a map with ~20 vector layers over the past couple of weeks. Its finally to a point where Im ready to export. Ive been experimenting with ...
5
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2answers
2k views

Cannot install a version of GDAL via Anaconda that permits reading BigTIFFs

I have some BigTiff files that I need to read into Python using gdal to do some analyses. According to GDAL's documentation: When built with internal libtiff or with libtiff >= 4.0, GDAL also ...
1
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0answers
51 views

ArcGIS and BigTIFF's

At some point ArcMap creates a BigTIFF rather than a normal TIFF. BigTiFFs don't work in many programs - in my case AutoCAD. What is the filesize where ArcMap creates a BigTIFF rather than normal ...
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0answers
298 views

Might my file be too big to be written with 'writeRaster' in R?

I am trying to write a GeoTiff of a rasterstack that I created after some calculations. I am not quite sure how big the output-file might be. But I assume it has more than 4 GB. I can plot the stacked ...
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0answers
44 views

Why does myRaster[1] <- 5 takes a very long time for a large raster?

I have a raster, which is not very big, only a few hundred megabytes compressed, but it has about 10 billion values, each stored in 1 byte (0..255). Uncompressed it would take about 10gb (lots of ...
7
votes
2answers
4k views

Processing large geotiff using python

I am working with a large (30GB) 3 band geotiff. I am using the following code to attempt to import the bands into python import gdal import numpy as np raster_path = "C:/Path/To/Image.tif" ...