Frederic Junod
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5906168bc0
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Don't recompute delay every loop
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2013-04-02 11:51:59 +02:00 |
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Frederic Junod
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e4a5744e06
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Remove x,y params from ol.Kinetic.begin
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2013-02-18 16:43:20 +01:00 |
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Tim Schaub
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440ea038fe
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Merge pull request #183 from tschaub/natural-names
More natural names for animations
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2013-02-07 13:44:13 -08:00 |
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Tim Schaub
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a2bbdf7ccc
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More natural names for animations
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2013-02-06 13:43:54 -07:00 |
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Frederic Junod
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2fea469037
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Change ol.Kinetic.update arguments.
Instead of goog.events.BrowserEvent, accept a x,y pair.
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2013-02-06 12:55:15 +01:00 |
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Tom Payne
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93976a5d9f
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Fix requires relating to recent commits
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2013-01-30 23:47:13 +01:00 |
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Bruno Binet
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d2f30986db
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Set kinetic getDuration instance method to @private
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2013-01-30 14:46:49 +01:00 |
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Bruno Binet
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dff8c2b2b2
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Renaming to be more consistent with ol3 style
s/v_0/initialVelocity/
s/v_min/minVelocity/
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2013-01-30 14:46:49 +01:00 |
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Bruno Binet
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d91e1d30d4
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Get rid of binarySelect to find the first point.
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2013-01-30 14:46:49 +01:00 |
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Bruno Binet
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79849888db
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Kinetic now returns directly the pre-render function
instead of returning the kinetic easing function only.
(thanks @fredj)
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2013-01-29 15:34:11 +01:00 |
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Bruno Binet
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8a9738d755
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Add support for kinetic effect while dragging.
Only dragpan interaction is supported for now.
The kinetic effect use the maths below (thx @twpayne):
Rate of decay (number, must be negative) = α
Minimum velocity (pixels/millisecond) = v_min
Initial velocity (pixels/millisecond) = v₀
Velocity at time t (pixels/millisecond) =
α⋅t
v₀⋅ℯ
Distance travelled at time t (pixels) =
⎛ α⋅t ⎞
v₀⋅⎝ℯ - 1⎠
─────────────
α
Duration of animation (milliseconds) =
⎛v_min⎞
log⎜─────⎟
⎝ v₀ ⎠
──────────
α
Total distance travelled (pixels) =
-v₀ + v_min
───────────
α
Easing function =
⎛ α⋅duration⋅t ⎞
v₀⋅⎝ℯ - 1⎠
──────────────────────
-v₀ + v_min
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2013-01-29 12:39:52 +01:00 |
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