z_media_rotate3d (zotonic_core v1.0.0-rc.14)
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Functions
Calculate the transformation matrix for the perspective. Translate the corner points of the image to the arguments for the ImageMagick distort function. This code has been derived from http://www.fmwconcepts.com/imagemagick/3Drotate/index.php
Link to this section Types
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matrix/0
-type matrix() :: [[number()]].
Link to this section Functions
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rotate3d(Width, Height, Roll, Tilt, Pan)
-spec rotate3d(Width :: non_neg_integer(),
Height :: non_neg_integer(),
Roll :: number(),
Tilt :: number(),
Pan :: number()) ->
{ok, string()} | {error, term()}.
Calculate the transformation matrix for the perspective. Translate the corner points of the image to the arguments for the ImageMagick distort function. This code has been derived from http://www.fmwconcepts.com/imagemagick/3Drotate/index.php
Here we don't scale the image, the image is rotated from the center of the image, and we use a fixed viewing point that is compatible with the viewing point used in the mod_image_edit css3 transformations.