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angle is in degrees.
antialias_steps allows you to control the number of colours used for antialiasing text.

angle in degrees in which text will be measured.
upper right corner, x position

parameters space, tightness, angle and antialias are optional.
this function returns an array containing the following elements:

the cpdf_rotate() function set the rotation in degress to angle.
prev

관찰시야the user should enter an angle for the field- of- view of the display
fov

set the current font slant to the angle indicated by the slant parameter. positive values create a foward slant, negative values create a negative slant.
positive values create a foward slant, negative values create a negative slant.

rotates the src_im image using a given angle in degree. bgd_color specifies the color of the uncovered zone after the rotation.
rotates the src_im image using a given angle in degree. bgd_color specifies the color of the uncovered zone after the rotation.

the bounding box is calculated using information available from character metrics, and unfortunately tends to differ slightly from the results achieved by actually rasterizing the text. if the angle is 0 degrees, you can expect the text to need 1 pixel more to every direction.
if the angle is 0 degrees, you can expect the text to need 1 pixel more to every direction.

angle is in degrees, with 0 degrees being left-to-right reading text (3 o'clock direction), and higher values representing a counter-clockwise rotation. (i.e., a value of 90 would result in bottom-to-top reading text).
col is the color index.