是否有办法将信封坐标转换为Tkinter的窗口坐标?
从窗口转换到信道协调,恰恰相反:
x = canvas.canvasx(event.x)
利用<代码>canvasx和canvasy方法,提出零论点,以计算可见信道左上角的x/y。 然后,仅仅使用数学来转换信道,就与窗户相对应。
# upper left corner of the visible region
x0 = self.canvas.canvasx(0)
y0 = self.canvas.canvasy(0)
# given a canvas coordinate cx/cy, convert it to window coordinates:
wx0 = cx-x0
wy0 = cy-y0
For example, if the canvas is scrolled all the way to the top and left, x0 and y0 will be zero. Any canvas coordinate you give will be the same as the window coordinate (ie: canvas x/y of 0,0 will correspond to window coordinate 0,0).
如果你把100个餐桌上roll倒,右边,那么10 100美元的血管协调将转化为0,0的窗口协调,因为这是窗户上左上角的子。
这使你对信道左上角具有价值。 如果你需要与整个窗口的顶端相对,则使用<条码>winfo_x和<条码>winfo_y,以便在窗户上协调信道,并且做几句话。 或,使用<代码>winfo_rootx和winfo_rooty,以获得与屏幕有关的植被坐标。
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