Crop and zoom on mobileimageviewer

[Sharon_Dankwardt]

I have an image (map) that I get from a passed in URL that I display on a mobileimageviewer. i’d like to be able to zoom into a defined location on the image when clicking on the image. Do I need to convert to a picture first? Does anyone have an example. It’s a US native plant map and I want to zoom into MA when clicking the image, or even better where clicked would be neat

Thanks
Sharon

[Art_Gorski]

You can use a canvas with pinch, scroll, and zoom gestures. I’ve had good luck with this code:

2 Finger zoom on mobile devices

Real beginner at mobile interface design - and had a rough time finding information about 2-finger “gestures” in my app (saw a bunch of references about “gestures”, but nothing I could sink my teeth into - and my abilities as far as includes go is … well, nil. My “Hard Code” solution became the following: Used a bunch of global properties: Public Property mScrollYStart As Double Public Property mDifference As Double Public Property mDistanceStart As Double Public Property mDistanceStop As …

[Sharon_Dankwardt]

I’d considered something like this but i’m not using a canvas because I need the URL properly of the mobileimageviewer to get the image I want

[Jeremie_L]

MobileImageViewer.URL is a handy feature to download an image with just one line of code.

If you want to display it in a Canvas, you will first need to download the image using URLConnection.

[Sharon_Dankwardt]

ok I’ll give that a try and then see if I can can zoom in like mentioned above

[Sharon_Dankwardt]

ok so that does zoom but doesn’t really keep it centered. I’d rather just click on the picture and make that point the center and zoom a fixed amount, or maybe I could just draw the portion of the image I want. I’ll fiddle around with it but a good start. Thanks!