improve style settings in SpetralView visualization

[Andreas Janz]

1. draw only a single marker for the style legend:

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2. Do we need this “visible” checkbox?

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It will produce incorrect behaviour, when used:

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I would suggest to remove the checkbox and just use the top-level checkbox for show/hide a visualization:

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[Benjamin Jakimow]

addresses #807

Signed-off-by: Benjamin Jakimow [e-mail] [e-mail]

→ <<cset 3d1cf3471652>>

[Benjamin Jakimow]

1. I don't consider this a bug. It better represents how symbols look like in case of multiple data points.

2. is now technically solved. checking/unchecking the "visible" checkbox would do so for the entire visualization. However, as sugested the "visbile" checkbox is now hidden in favour of the top-level visualization node 's checkbox.

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[Andreas Janz]

I don't consider this a bug. It better represents how symbols look like in case of multiple data points.

Not quit sure what you mean. But now it looks good with only a single data point.

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[Benjamin Jakimow]

I understood your comment (“draw only a single marker for the style legend“) in that way that you don’t like to see 3 markers in the “Style” preview image?

[Andreas Janz]

Ah, no, I meant the preview that I highlighted

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Thanks Benjamin!

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