If i change the screen resolution then, how I will calculate the Change Scale Factor of an object :
For example my object current this.scaleX is 0.8 , this.scaleY is 0.8 (as you know scaleX and scaleY are the properties of the Flex) and my current screen resolution is 1360*768
Now I change the screen resolution to 800*600 ,
Then how I will calculate the changed scaleX and scaleY of my object.
I am using the following formula to find the changed/updated Scale Factor :
scaleX = scaleX * (768 / 1360) * (800 / 600);
scaleY = scaleY * (768 / 1360) * (800 / 600);
But it is not giving Correct result to me,
So please Help me to solve this problem.
To calculate the scale of an axis you only need to take into account the values of that axis on the screen. So either X (width) or Y (height), but not both. Also I would use the width and height of the screen at a scale of 1 as reference values. This will make it easier to calculate the new scale. In your case:
screenWidthAtFullScale = 1360 / 0.8
screenHeightAtFullScale = 768 / 0.8
scaleX = 800 / screenWidthAtFullScale => 0.47
scaleY = 600 / screenHeightAtFullScale => 0.625
Note that this will distort your object. It would be better to calculate one scale and apply that to both the X and Y axis to prevent that.