On Jul 20, 8:28 pm, Christopher Watson <[email protected]> wrote: > hey, even with an example, i'm struggling to adapt. sorry. can anyone point > out where its going wrong?
forgot a link: http://visualisationmagazine.com/dineography2.htm > > if i can push the overlays into this array: > > var overlay = []; > > with this it just keeps error'ing as not defined. function overlayAdd() { overlays.push(overlay); <-------- what is overlay here? var sw = new google.maps.LatLng(53.389062, -1.307373) ; var ne = new google.maps.LatLng(53.360387, -1.240082) ; var bounds = new google.maps.LatLngBounds(sw,ne) ; overlay = new ProjectedOverlay(map,'dinnington.jpg', bounds, {percentOpacity:100}) ; <--- now overlay is something useful --- try something more like this: function overlayAdd() { var sw = new google.maps.LatLng(53.389062, -1.307373) ; var ne = new google.maps.LatLng(53.360387, -1.240082) ; var bounds = new google.maps.LatLngBounds(sw,ne) ; var overlay = new ProjectedOverlay(map,'dinnington.jpg', bounds, {percentOpacity:100}) ; <--- now overlay is something useful overlays.push(overlay); <-------- now push it on the array > > can i still use the setOpacity to control all the overlays and change their > opacity? Yes. By iterating through the array: for (var i=0; i < overlays.length; i++) { overlay[i].setOpacity(desiredOpacity); } > or have i to settle on using the clearOverlays()? > > <a href="javascript:overlay.setOpacity(25)" style="text-decoration: > none;">25%</a> to use it like this I would write a function: function setOpacities(desiredOpacity) { for (var i=0; i < overlays.length; i++) { overlay[i].setOpacity(desiredOpacity); } } then this should work: <a href="javascript:setOpacities(25)" style="text-decoration: > none;">25%</a> > > appreciate the help. > > thanks > > chris -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.
