zoran995
commented
2 years ago Ouch, this one is not easy, currently, I would suggest using min and max scale denominator (#5735) as it will give information to user that he needs to zoom in closer to see the dataset, as it is implemented for this use case.
It's possible to add an option zoom to the visible range but we still cannot guarantee that user will see dataset (unless config has a point specified for this dataset). Esri has something like this (or had haven't used it for some time) and it works terrible for sparse datasets, usually, I end on the area that I didn't even look in the first place and there is no data (center of bbox for Republic of Srpska is outside of territory which usually causes that there is no data visible).
It is certainly not impossible to implement it but it will be a little crazy to make it intuitive and usable for end-users. Some of the issues that this can raise
- zoom in to the center location of the user screen or dataset rectangle - are there really any data in that location (maybe the center of street layer falls on the ocean or user is on min zoom at the unpopulated area and there are no streets available)
- specify point - what if the user wants another side of the state
- multiple points and use the closest one to the user view location - this can make it work correctly for the user on sparse dataset but will increase the size of initialization files and really complicate maintaining of init files - this could go incrementally ideal zoom would first zoom to dataset rectangle and then to the visible range. I would really like to see the workflow for maintaining something like this on the init file level :rofl: For dense datasets, some other option should be used edit my answer is mainly for raster layers since WMS is on image
There are examples where 'ideal zoom' is not 'ideal'. For example, when the users clicks on 'ideal zoom' the data is still not visible, because zoom level is not close enough.
User feedback: "As a User, the ideal zoom must zoom to the level at which as dataset will visualise in the map. Where datasets have a closer zoom level that the ideal zoom, the user doesn't intuitively know to zoom in closer to find the data, they think its unable to load"
To test:
Ideal Zoom:
Zoomed in at 20m