Description
Latest maptalks-gl from CDN (maptalks-gl v0.105.4). Sometimes mouse events have a wrong target marker. That happened multiple times with different markers. Mobile simulator is also affected.
I'd love to have a smaller reproducible example but I only got this, if you go the link below and zoom back and forth you eventually notice that hover and click events don't match the marker.
I can only guess what happens, but it's probably an R-tree (or another spatial structure) bug. The other marker is usually not far away. Maybe it happens because I use rectangular CRS and it's fairly large, 8129000 pixels so float precision may be not enough.
map = new maptalks.Map('map', {
spatialReference : {
projection : 'identity',
fullExtent : { top: top, left: left, bottom: bottom, right: right }, // mandatory to hide 404
resolutions: Array.from({length: maxZoom + 1},(_,i) => w / tileSize / (1<<i)), // mandatory zoom levels
},
}It only happens on certain zoom levels and with certain markers, though. Maybe a few out of 60 thousand. It doesn't seem there's anything special about those markers besides their index. If i move marker up or down one position in the JSON, the bug disappears. It is also seems to be affected by window height when I open the console and window becomes narrower, so it's probably different for different window sizes. Rounding z-coordinate from -1003.9592 to -1003.95 also seems to fix this marker (probably because after 3d transform it goes into a different R-tree cell).
Video