MirrorHub/atlas
0
0
Fork 0
mirror of https://github.com/placeAtlas/atlas.git synced 2024-12-27 07:24:03 +01:00
Code Issues Projects Releases Wiki Activity

Merge pull request #853 from TrevorSayre/pixel-scrolling

Browse source
This commit is contained in:
ash 2022-04-07 00:21:53 +01:00 committed by GitHub
commit 16267a7562
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 16 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
web/_js/main.js
View file

@ -272,13 +272,22 @@ async function init(){
lastPosition = [x, y];
if(e.deltaY > 0){
// Check if we are zooming by pixels
// https://developer.mozilla.org/en-US/docs/Web/API/WheelEvent/deltaMode
if (e.deltaMode === 0) {
// Scale the pixel delta by the current zoom factor
// We want to zoom faster when closer, and slower when further
// This creates a smoother experience
zoom -= e.deltaY * (0.001 * zoom);
} else {
if(e.deltaY > 0){
zoom = zoom / 2;
zoom = zoom / 2;
} else if(e.deltaY < 0){
} else if(e.deltaY < 0){
zoom = zoom * 2;
zoom = zoom * 2;
}
}
zoom = Math.max(minZoom, Math.min(maxZoom, zoom));