zooming

How would I add zooming in and out to the following script, i'd like to bind it to the mousewheel. If you're testing this script on linux don't forget to change the MouseWheel event to Button-4 and Button-5. from Tkinter import * import Image, ImageTk class GUI: def __init__(self,root): frame = Frame(root, bd=2, relief=SUNKEN) frame.grid_rowconfigure(0, weight=1) frame.grid_columnconfigure(0, weight=1) xscrollbar = Scrollbar(frame, orient=HORIZONTAL) xscrollbar.grid(row=1, column=0, sticky=E+W) yscrollbar = Scrollbar(frame) yscrollbar.grid(row=0, column=1, sticky=N+S) self.canvas = Canvas

Please see each section below for a description of my problem described in three separate ways. Hopefully should help people to answer. Problem: How do you find a pair of coordinate expressed in canvas/userspace when you only have the coordinate expressed in terms of a zoomed image, given the original scale point & scale factor? Problem in practice: I'm currently trying to replicate the zoom functionality used in apps such as the gallery / maps, when you can pinch to zoom/zoom out with the zoom moving towards the midpoint of the pinch. On down I save the centre point of the zoom (which is in X

I have to implement image zooming, I have tried with so many codes.But i didnt get full idea of gesture events. I want to implement when we apply double tap, image will be zooming according to the touch place(event x and y).I have to implement only zooming at this time no pan.Can any body suggest me ? Edit: Actually i have implemented that viewflipper with images, if i try to apply pan and zoom effect, sometimes images will be changed. I want to implement zoom effect for where the user is clicked . Give me some idea of that.... star18bit Lazy man can use this lib , Just import inside your

I have this really simple form: http://jsfiddle.net/TKb6M/91/ . Sometimes, when I zoom in or out using Chrome, the input borders disappear. For example, when I zoom to 90% I get: Naturally, your mileage may vary. In case you're wondering about those <span> tags, I added them following the recommendation at How do I make an input element occupy all remaining horizontal space? . Is there a problem with my CSS or is this a Chrome bug? It seems to work fine on Firefox. What can I do to avoid this behavior? Thanks. vals You are forcing Chrome to do subpixel calculation, and this usually has strange