COGDumper downloads the whole header
Nobody has claimed this yet.
- Dominant language
- Python
- Stars
- 72
- Forks
- 13
- PR merge metrics
- No merged PRs in 30d
Description
COGDumper downloads the whole header. See this example which is a BIGTIFF with a 400mb header!
```
cogdumper http --server https://s3-ap-southeast-2.amazonaws.com --path linz-test-data --resource auckland_urban_2017_0.075m_cog.tif --xyz 0 0 0
````
Note GDAL when built with internal libtiff only downloads the parts of the header required for data or overview tiles requests
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at the `cogdumper http` entry point shown in the issue and trace how it reads the BIGTIFF header for the requested tile. Compare its range requests with the GDAL behavior described in the report. Done means the command fetches only the header portions required for data or overview tiles rather than downloading the entire header.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- cli, data
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100