27 lines
1.0 KiB
Plaintext
27 lines
1.0 KiB
Plaintext
interface @beta Efl.Interpolator
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{
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[[Interface providing interpolation capabilities.
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In the context of EFL, interpolation is defined as the mapping of values in the
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$[0, 1] range to another range (typically close).
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This is used for example in animations, where the timer moves linearly from $[0.0]
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to $[1.0] but the property being animated can accelerate, decelerate, bounce or
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even move slightly out-of-bounds and come back.
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For example implementations see @Efl.Accelerate_Interpolator, @Efl.Decelerate_Interpolator
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or @Efl.Bounce_Interpolator.
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]]
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methods {
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interpolate {
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[[Performs the mapping operation.]]
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return: double; [[Output mapped value. Its range is unrestricted. In particular,
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it might be outside the input $[0, 1] range.]]
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params {
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@in progress: double; [[Input value between $[0.0] and $[1.0]. Values outside this range
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might yield unpredictable results.]]
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}
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}
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}
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}
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