macosopenstreetmapqgiszoom
I've come across this issue when trying to zoom in OSM.
Here is a video of the issue:
https://i.imgur.com/emqxC7S.mp4
I don't have it when using the QGIS world map. Basically zooming straight in without moving my mouse in any direction move the location on the map to the right.
I'm new to QGIS.
In QGIS 2.14.7 LTR there is an option to completely disable zooming using the mouse wheel from Settings -> Options -> Map Tools -> Panning and Zooming, you need to change Mouse wheel action to Nothing as you can see below:
However, the same option is not available in QGIS 2.16.3. But there is a new option called Magnification. When you lock the scale in QGIS and zoom using mouse wheel, the zooming here is not actually zoom but magnify the view of the screen.
I recommend to install QGIS 2.14.7 LTR to disable the mouse wheel completely, if you need this option.
First, you should use a ol.layer.Vector instead of an ol.Overlay to display markers, especially if you have many.
Second, take a look at this Icon example in OpenLayers. The marker always points to the correct location. That is: because its center is not the location.
Look at the style definition:
var iconStyle = new ol.style.Style({
image: new ol.style.Icon(/** @type {olx.style.IconOptions} */ ({
anchor: [0.5, 46],
anchorXUnits: 'fraction',
anchorYUnits: 'pixels',
src: 'https://openlayers.org/en/v4.1.1/examples/data/icon.png'
}))
});
The anchor property defines where the image should points, by default it is the center of the image. See the ol.style.Icon API doc.
For your case, it would seem that the center of the image points to the location, where you would have wanted to bottom tip to do that. Try the ol.layer.Vector with icon style definition, instead.
Best Answer
I have experienced this bug with QGIS 3.22, too (running OSX Catalina). It has nothing to do with your OSX version. I downgraded to QGIS 3.16 LTR which doesn't show this behaviour.