Is it possible to rotate an image in an ImageView view? In the docs it appears there is a rotate attached to Image, but I cannot get the preloaded arrow to react to any amount of coercion.
ImageView.image.rotate
doesn’t exist, as doesn’t,
ImageView.rotate.
Should I just be using an Image not attached to a view? (That definitely doesn’t sound right).
Any pointers would be appreciated.
@daveM rotate is a method of PIL Image, not of ui.Image
You could also set the imageview transform to ui.Transform.rotation(90), depending on what you are trying to do.
@daveM and also this
import ui
from objc_util import *
from math import cos,sin,pi
class MyClass(ui.View):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
b = ui.ImageView()
b.frame = (100,100,200,200)
ui_image = ui.Image.named('test:Peppers')
b.content_mode = ui.CONTENT_SCALE_ASPECT_FILL
b.image = ui_image
o = ObjCInstance(b)
a = -pi/6
rot = CGAffineTransform(cos(a),-sin(a),sin(a),cos(a),0,0)
o.transform = rot
self.add_subview(b)
if __name__ == '__main__':
w, h = 400,400
f = (0, 0, w, h)
mc = MyClass(frame=f, bg_color='white')
mc.present('sheet')
As usual, @JonB is right 😀
a = -pi/6
b.transform = ui.Transform.rotation(a)
replaces
o = ObjCInstance(b)
a = -pi/6
rot = CGAffineTransform(cos(a),-sin(a),sin(a),cos(a),0,0)
o.transform = rot
With PIL
import io
import ui
from PIL import Image
.
.
.
.
b = ui.ImageView()
b.frame = (100,100,200,200)
b.border_width = 1
pil_image = Image.open('test:Peppers')
pil_image = pil_image.rotate(30,expand=True)
def pil2ui(imgIn):
with io.BytesIO() as bIO:
imgIn.save(bIO, 'PNG')
imgOut = ui.Image.from_data(bIO.getvalue())
del bIO
return imgOut
ui_image = pil2ui(pil_image)
b.content_mode = ui.CONTENT_SCALE_ASPECT_FILL
b.image = ui_image
I’m looking at a compass style object using the attitude sensor.
I’ll try those now. Thanks guys