mon_conv | R Documentation |
Given a specific monitor object, converts specified screen units to other specified units. The possible units to convert from and to: "cm" (centimeters), "pix" (pixels), or "deg" (degrees of visual angle).
mon_conv(mon_obj, value, from, to)
mon_obj |
Monitor object, as assigned with |
value |
Number; value (magnitude) of the given unit to convert from. (Can be vector as well.) |
from |
String; unit ("cm", "pix", or "deg") to convert from. |
to |
String; unit ("cm", "pix", or "deg") to convert to. |
Number (magnitude) in the given output (to
) unit.
mon_neat
# assign monitor with 50 cm distance, screen width 52 cm and 1920 pixels my_mon = mon_neat(distance = 50, mon_width_cm = 52, mon_width_pixel = 1920) # convert 30.4 pixels to degrees of visual angle, for the specified monitor mon_conv(my_mon, 30.4, 'pix', 'deg') # returns 0.9434492 (degrees) # convert 0.94 degrees of visual angle to pixels mon_conv(my_mon, 0.94, 'deg', 'pix') # returns 30.28885 (pixels) # convert 10 degrees of visual angle to cm mon_conv(my_mon, 10, from = 'deg', to = 'cm') # convert 8.748866 cm to pixels mon_conv(my_mon, 8.748866, from = 'cm', to = 'pix')
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