Zoom values outside zoom_min and zoom_max

[andreasdymek]

Logging the editor.zoom values shows that zoom values may at times go outside of the given range of [editor.zoom_min, editor.zoom_max]. I propose when calculating editor.zoom to check if the value is inside the range and if not hardcode it to the provided min and max. Further, it might be worth to explore rounding results to avoid javascripts floating error.

[jerosoler]

It will probably be because the number is not rounded. You can also listen to the event and round the zoom.

Does it cause any problems in the UI?

[andreasdymek]

I wanted to include a background grid (using css background properties) in the editor. Due to the editor.zoom values, it was not possible to calculate a precise offset for simulating moving into the center. The same holds for the values in the translation event btw.

I solved the issue though by using independent numbers and an independent div for background!