---
layout: example.html
title: Mousewheel/Trackpad Zoom
shortdesc: Restrict wheel/trackpad zooming to integer zoom levels.
docs: >
By default, the `ol.interaction.MouseWheelZoom` can leave the map at
fractional zoom levels. If instead you want to constrain wheel/trackpad
zooming to integer zoom levels, set constrainResolution: true
when constructing the interaction.
tags: "trackpad, mousewheel, zoom, interaction"
---