Stacks

A Stack is the core collaborative document type in Sundog.

A stack is made of one or more Layers, with Annotations and Comments on top of it.

Currently, a Layer can be a single Page from an Upload. Every Layer in a stack must have the same resolution (width/height in pixels). The Layers in the Stack can come from any number of Uploads.

Making stacks

There are two ways to make a Stack.

1. Make a stack directly from an Upload

From an Upload’s page, select one or more layers with checkboxes, and click Load into new stack.

This will make a stack with each page on a layer; you will be redirect to viewing the Stack in the Stackviewer.

2. Make a stack from the Stacks page.

If, however, you wish to make a stack from more than one upload, you must do so from the Stacks page.

From the Stacks page (found in the Experiment Menu), click New Stack. (Alternatively, use the New → Stack shortcut from the Experiment homepage, just above the latest stacks/uploads).

This page lists all the pages from every upload in the experiment. Select the pages you’d like to use as layers, and click Load into new stack at the bottom. Remember that all layers in a stack must (for now) have the same dimensions.

The checkbox by a page will toggle it; the checkbox at the top of each upload’s list of pages will toggle all pages for that uploads. The Toggle all layer across uploads button will toggle every single page on the screen.

You currently can’t add/remove layers from a stack right now; you can however just delete a stack and recreate it with the layers you’d like - although you’d lose any annotations on them.

Viewing stacks

Anyone in the lab can currently view and comment any stack in an experiment.

Stacks are viewed in the Stack Viewer; this has enough functionality that it warrants its own documentation page.