Color of annotations with multiple labels

[mzur]

Annotations can have multiple labels attached to them. Each label may have an individual color. Which color should be taken for displaying the annotation?

[mzur]

Ideas:

• Display the annotation with "rainbow" colors
• Use transparency to signal "uncertainty"
• Use other features (thicker border, dashed lines etc.)

[mzur]

Rainbow colors are not possible with OpenLayers (only as fill, not stroke, so it would work only for points). I think transparency might not be a very good choice since annotations with different labels should not be harder to see. It would also conflict with the manually chosen annotation opacity of the user.

As for different styles for those annotations, I came up with this:

The upper point and lower rectangle have the different style (ignore the color). But I'm not sure if this is not just confusing for the user. Currently all annotations have a style with solid colors and other things like laserpoints, the export area etc. have dashed lines. Introducing dashed lines to annotations, too, would make them less distinguishable to 'other' features. @dlangenk Any thoughts?

[mzur]

Multiple labels for a single annotation are very rare. We won't display these annotations in any special way.