sleitgeb / muni-international-students Goto Github PK

Avoid reading student numbers from geojson (topojson). Read directly from .csv instead.

Even when using a non-zero zoomSnap for L.map, the zoom level is not always snapped on a touchscreen device. With the following setup:

• zoomSnap: 0.1,
• layerA.min_zoom = -12,
• layerB.max_zoom = -12.1,

If the user zooms using the pinch gesture to e.g. -12.07, all layers disappear (since the zoom is between the thresholds), and no zoom snap occurs. The user can still zoom out or in, and the layers reappear.

Two possible fixes come to mind:

1. set the zoom thresholds for consecutive layers to very similar values, e.g.:

• layerA.min_zoom = -12,
• layerB.max_zoom = -12.0000000001,

2. change the comparison in the leaflet-zoom-show-hide plugin, so that layers A and B (layerA.min_zoom === layerB.max_zoom) don't overlap, roughly:

if (current_zoom_level >= layer.min_zoom && current_zoom_level < layer.max_zoom) {
  layer.addTo(this._layerGroup);
}

This would be preferably implemented using an initialization option in the plugin.

This might be the easiest to do by adding a new layer group for PhD students and a layer picker.

Convert the geometries to a TopoJSON with quantization and simplify the geometries to reduce file size.

Choose suitable coordinate system and apply map wrap, so one can endlessly pan to the side...

Incorrect country name in 50m dataset.

Delay downloading of the higher zoom data until necessary. The more detailed layer is shown at zoom 6 and higher currently. Try triggering the download at zoom 7 or higher. Also, don't restrict the zoom level of the more generalized layer until the detailed data is ready.

Egypt - states10m - SouthEast
Antarctica