Re: tkinter, canvas, get color of image?
On 16 Apr, 00:46, Bryan Oakley [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: On 13 Apr, 19:19, Bryan Oakley [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: mapq = PhotoImage(file = 'C:\Users\saftarn\Desktop\elmapovic.gif') w.create_image(10, 10, image = mapq, anchor = NW) after doing this is there any possibility of getting the characteristics of the GIF-picture(or bitmap if i use that)? it would be very helpfull if i for example could do something like canvas.getcolor(image, mouseclick.x,mouseclick.y) if u get the point. get the color of the image where i clicked. The image isn't painted on the canvas, so to answer your specific question, no, you can't get the color of a pixel on the canvas in the way that you ask. However, when you click on the canvas you can get the item that was clicked on and the x/y of the click. From that you can figure out which pixel of the image is under the cursor. And from that you can query the image for the color of a specific pixel. how do i get the item? http://effbot.org/tkinterbook/canvas.htm#Tkinter.Canvas.create_image-... with any of those methods? when i click the mouse i can get event.object u mean? You can use find_closest to find the object closest to the x,y of the event. You can also do find_withtag(tk.CURRENT) which returns the item under the mouse pointer. Exception in Tkinter callback Traceback (most recent call last): File C:\Python25\lib\lib-tk\Tkinter.py, line 1403, in __call__ return self.func(*args) File C:\Users\saftarn\Desktop\pythonkod\mapexperiments \mapgetobject.py, line 17, in callback undermouse=find_closest(master.CURRENT) NameError: global name 'find_closest' is not defined from Tkinter import * master = Tk() w = Canvas(master, width=400, height=625) w.pack(expand = YES, fill = BOTH) mapq = PhotoImage(file = 'C:\Users\saftarn\Desktop\images \something.gif') w.create_image(30, 30, image = mapq, anchor = NW) def key(event): print pressed, repr(event.char) def callback(event): clobj=event.widget ##undermouse=find_withtag(master.CURRENT) undermouse=find_closest(master.CURRENT) print repr(undermouse) w.bind(Key, key) w.bind(Button-1, callback) w.pack() mainloop() -- http://mail.python.org/mailman/listinfo/python-list
Re: tkinter, canvas, get color of image?
On 13 Apr, 19:19, Bryan Oakley [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: mapq = PhotoImage(file = 'C:\Users\saftarn\Desktop\elmapovic.gif') w.create_image(10, 10, image = mapq, anchor = NW) after doing this is there any possibility of getting the characteristics of the GIF-picture(or bitmap if i use that)? it would be very helpfull if i for example could do something like canvas.getcolor(image, mouseclick.x,mouseclick.y) if u get the point. get the color of the image where i clicked. The image isn't painted on the canvas, so to answer your specific question, no, you can't get the color of a pixel on the canvas in the way that you ask. However, when you click on the canvas you can get the item that was clicked on and the x/y of the click. From that you can figure out which pixel of the image is under the cursor. And from that you can query the image for the color of a specific pixel. how do i get the item? http://effbot.org/tkinterbook/canvas.htm#Tkinter.Canvas.create_image-method with any of those methods? when i click the mouse i can get event.object u mean? -- http://mail.python.org/mailman/listinfo/python-list
Re: tkinter, canvas, get color of image?
[EMAIL PROTECTED] wrote: On 13 Apr, 19:19, Bryan Oakley [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: mapq = PhotoImage(file = 'C:\Users\saftarn\Desktop\elmapovic.gif') w.create_image(10, 10, image = mapq, anchor = NW) after doing this is there any possibility of getting the characteristics of the GIF-picture(or bitmap if i use that)? it would be very helpfull if i for example could do something like canvas.getcolor(image, mouseclick.x,mouseclick.y) if u get the point. get the color of the image where i clicked. The image isn't painted on the canvas, so to answer your specific question, no, you can't get the color of a pixel on the canvas in the way that you ask. However, when you click on the canvas you can get the item that was clicked on and the x/y of the click. From that you can figure out which pixel of the image is under the cursor. And from that you can query the image for the color of a specific pixel. how do i get the item? http://effbot.org/tkinterbook/canvas.htm#Tkinter.Canvas.create_image-method with any of those methods? when i click the mouse i can get event.object u mean? You can use find_closest to find the object closest to the x,y of the event. You can also do find_withtag(tk.CURRENT) which returns the item under the mouse pointer. -- http://mail.python.org/mailman/listinfo/python-list
tkinter, canvas, get color of image?
mapq = PhotoImage(file = 'C:\Users\saftarn\Desktop\elmapovic.gif') w.create_image(10, 10, image = mapq, anchor = NW) after doing this is there any possibility of getting the characteristics of the GIF-picture(or bitmap if i use that)? it would be very helpfull if i for example could do something like canvas.getcolor(image, mouseclick.x,mouseclick.y) if u get the point. get the color of the image where i clicked. -- http://mail.python.org/mailman/listinfo/python-list
Re: tkinter, canvas, get color of image?
[EMAIL PROTECTED] wrote: mapq = PhotoImage(file = 'C:\Users\saftarn\Desktop\elmapovic.gif') w.create_image(10, 10, image = mapq, anchor = NW) after doing this is there any possibility of getting the characteristics of the GIF-picture(or bitmap if i use that)? it would be very helpfull if i for example could do something like canvas.getcolor(image, mouseclick.x,mouseclick.y) if u get the point. get the color of the image where i clicked. The image isn't painted on the canvas, so to answer your specific question, no, you can't get the color of a pixel on the canvas in the way that you ask. However, when you click on the canvas you can get the item that was clicked on and the x/y of the click. From that you can figure out which pixel of the image is under the cursor. And from that you can query the image for the color of a specific pixel. -- http://mail.python.org/mailman/listinfo/python-list
