setViewScale(1.00)
window size: [980, 1281]
zoom scale: 0.78

setViewScale(0.50)
window size: [1960, 2562]
zoom scale: 0.39

setViewScale(2.00)
window size: [490, 641]
zoom scale: 1.57

setViewScale(1.00)
window size: [980, 1281]
zoom scale: 0.78