gre.animation_add_step(id, data)
Add a step to a created animation. The id must be from a call to gre.animation_create. The data parameter defines the animation step values.
Parameters: id The animation id data A table of animation step values which can include: key: The data key for the animation step to act upon rate: The animation rate string: [linear | easein | easeout | easeinout | bounce] duration: The length of the step (ms) offset: The offset from animation start where this step begins (ms) from: The value to start the animation at, if not specified the value is the current value of "key" to: The end point for the animation delta: The delta for the end of the animation from the start point. If both "to" and "delta" are given then the "to" value is used. Example:
function create_animation(mapargs)
local data = {}
-- slide the x position 400 pixels over 2000 ms and auto-destroy
-- it on completion
id = gre.animation_create(60, 1)
data["rate"] = "linear"
data["duration"] = 2000
data["offset"] = 0
data["delta"] = 400
data["key"] = "mylayer.mycontrol.grd_x"
gre.animation_add_step(id, data)
end