These are chat archives for openseadragon/openseadragon
I am developing an MIT-licensed web tool on top of OpenSeadragon.
Unfortunately there are no photos to show right now,but the web tool already seems to work. I implemented an idea I
had: Storing all the photo tiles in a single
data file together with some scientific measurement data. The photo
is a cell tissue and the measurement data represents
gene expression measurement points. By having the data in a single
file structured with a header containing an index
of the content, it is possible to open the data file both as a local
file through the "File API" and as a remote file over XMLHttpRequest.
Note that there is no need to read/download the whole data to look at it. When different image tiles are needed they are read/downloaded as byte ranges from the data file. This works because the "File API" supports reading byte ranges out of local files, and web servers normally seem to support the HTTP RANGE header.
For painting the measurement points I tried a few approaches:
Some more links: