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Overview
Zooming and panning
View an annotation
Add an annotation
Edit and delete annotations
Snapshots



Overview

When you click an image thumbnail in your browser, the slide will open in the default viewer, seen in Figure 1.


Fig 1. The default WebMicroscope slide viewer.


The viewer consists of two main parts: The zoomable slide itself on the left, and a set of tools in the right margin. If you wish to hide the tools in the margin, click the "Hide margin" button in the right upper corner (Fig 2)

Fig 2. Hide the right margin.



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Zooming and panning

There are multiple ways to zoom the slide. If you have a touch screen, you can tap it, or pinch to zoom in and out. You can also click the plus and minus buttons (Fig 3), or the Quick zoom buttons.

To quickly zoom to the whole slide, clik the "Zoom to whole slide" button in the left upper corner (Fig 3).

The current zoom level is displayed in the Scale bar in the lower left corner (Fig 3). The overview panel also shows the current view extent, and can be used for quick navigation to a part of the slide.

Fig 3. Zooming and panning controls in the viewer.



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View an annotation

Already adde annotations are listed in the right margin, as small clickable thumbnail images (Fig 4). To view an annotation, click the thumbnail image, and the viewer will zoom to the annotated area, and also show text added to the annotation.

Fig 4. List of annotations in the slide.



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Add an annotation

To make a new annotation in a slide, click the Annotate button (Fig 1). This will activate the annotation tools (Fig 4).

Fig 5. Activate the annotation tools.


What you can see of the slide in the viewer will be the area saved with the annotation. When the area is correct, click one of the annotation 5 buttons (Fig 5): Rectangle, Circle, Polygon, Arrow, and Roam. the first 4 will let you draw a vector on top of the slide, while the last one will just add the area as an annotation without a vector.

In Figure 6 an Arrow has been added to the annotation. The Annotation panel is seen in the right margin. To save the annoation, click the Save button.

Fig 6. The Annotation panel.



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Edit and delete annotations

If you are eligible to edit an annotation (it is your own, or you are an administrator), an Edit button will be seen when you open an annotation. Clickin this button will show the tools seen in Figure 7.

In this panel you can update the extents of the annotation area (by checking the control, Fig 7). You can add vectors to the annotation by clicking any of the drawing tools, and you can delete the annotation including all its vectors (Fig 7).


Fig 7. Editing an annotation.


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Snapshots

In the right margin of the viewer there is a control to quickly create a high-resolution snapshot of the slide area currently seen in the viewer (Fig 1, Fig 8).


Fig 8. Create a snapshot.


When you click the link, the Snapshot controls will be shown (Fig 9).

You can adjust the size (in pixels) of the snapshot, and you can set the jpg quality. Note that either the height or the width will be used, depending on the aspect ratio of the selected area.

Fig 9. The Snapshot controls.


When the snapshot is created, you can click the thumbnail to open (and save) in the browser (Fig 10). Alternatively you can right-click it with your mouse to save it directly.

Fig 10. The created snapshot thumbnail. Clicking the thumbnail will open the snapshot.


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