Pyramidal Tiff Store¶
Slide atlas is able to access pyramidal tiles directly coming from Philips scanner.
The difference with MongoTileStore is
- Naming convention, the tiles in pyramidal tiff;s are rather accessed by x,y,zoom than in the format “tt.jpg”. There is conversion available though.
- A macro image can be downloaded from the store, also the label image can be created by combining with barcode
- The Store object AKA databases object contains additional fields such as last sync, and endpoint to fetch tiles
TileStore endpoint proposal¶
Tile servers should not go without authentication, but now they will.
Serves tiles from given imageid and tile-name or tile parameters.
Warning
todo: A ptiffserver endponint will be included in the slideatlas source code. A separate run command might be able to run just the tile server API and not entire webapp.
Note
When the first request is arrived, checks whether the user is logged in by making an api call to the central server and whether the access
Pyramidal TIFF endpoint proposal¶
A different run_ptiffserver.py is required for running the endpoint
Supports API for
- Resynchronize the database : Reads updated files, uses celery
- Gets a tile
The end point will support following api
Tile Store¶
- Needs to know the location of the folder where its going to keep the incoming files
- Needs to know last sync
- Should be able to sychronize the files and remove records for non-existing ones
- Upload files there
Some other¶
API documentation¶
Automatic synchronization¶
Following commands demonstrate how to submit the task to celery queue and how to read the results
>>> from slideatlas.tasks import sync_store
>>> a = sync_store.delay("5356d8b9e67655244bf3273a")
>>> a.ready()
>>> print a.result
If the celery is started with a named worker queue (by adding option -Q celery_autosync, then the task must be applied to that queue
from slideatlas.tasks import sync_store
b = sync_store.apply_async(args=("5356d8b9e67655244bf3273a",), queue="celery_autosync")
For production deployment¶
We need
- Site specific configuration and schedule settings
- A site specific supervisor config file to start worker processe(s)
Upload a ptiff file into mongodb¶
Accept parameters to locate the input file,
- first step is to get input file from a filesystem
- second step is to get pointer to a ptif file in image_store
URL for attachment is as follows