Question

i’m working with google maps v3 animations and i have a question

this is my example http://gidzior.net/map/v3_animate_marker_directions.html (i’m using placeholder in the input), GM code is from here

how to automatically zoom map when animated marker is 1 km from destination ?

Answer 1

Create a new global variable zoomed
Add the following into function animate(d):

if (d>eol-1000 && zoomed!=true) {
  map.setZoom(14); // or whatever value
  zoomed=true;
}

The reason to use a simple flag and not test map.getZoom() is because that function call will be slower so we don’t want to call getZoom() with every animation step. Note that performing the zoom may be problematic if tiles need to be loaded while the animation is continuing.