I have a problem with a simple image viewer i'm making. You see i would like have the picture the user selected to be up-scaled or down-scaled depending on the width and height of the picture. So a 1920 x 1080 pic will be reduced down to manageable size but a 40 x 40 picture will look big enough to see clearly.
This scale factor i'd preferably like in a single variable and without the use of IF statements because doing IF pic_h > 100: etc. ... you get the point.
Here is where i'm at:
for x in range(int(pic_w)):
xline = target.readline()
for y in range(int(pic_h)):
pixel_data = xline[y:y+1]
sf = <THIS IS THE BIT I NEED>
y1b = (y*2)+0
x1b = (x*2)+0
y2b = (y*2)+2
x2b = (x*2)+2
y1w = (y*2)+0
x1w = (x*2)+0
y2w = (y*2)+2
x2w = (x*2)+2
if pixel_data == "1":
pixel = canvas.create_rectangle(y1b, x1b, y2b, x2b, fill="black")
elif pixel_data == "0":
pixel = canvas.create_rectangle(y1b, x1b, y2b, x2b, fill="white")
else:
blah blah blah ............
The varibles pic_h and pic_w are the picture height and width.
width, height = maximum size in pixels
x, y = number of pixels
maxSize = min(width, height)
width = = (maxSize//x)*x
height = (maxSize//y)*y
xScale = (width/x)
yScale = (height/y)
for row in xrange(y):
for column in xrange(x):
canvas.create_rectangle((column * xScale, row * yScale, (column * xScale)+xScale, (row * yScale)+yScale), fill=data)