Feature request #7868
Integrate time manager plugin into core, add animation time variables to expression engine
| Status: | Open | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | Unknown | ||
| Pull Request or Patch supplied: | No | Resolution: | |
| Easy fix?: | No | Copied to github as #: | 16743 |
Description
Watching http://www.youtube.com/watch?v=qKesia0aGwE makes me think how sweet it would be if a variant of the Time Manager plugin was integrated into core. This could then allow us to use the animation time parameter for data defined symbology/labelling expressions. I'm thinking points which grow/shrink/fade with time, labels which show for a few seconds when a point appears before smoothly fading away, ...!
For instance, if the animation time was available via a variable such as "$animation_datetime", then an expression for fading a symbol over a week could be something like:
Color fill expression:
color_rgba(255, 0, 0, scale_linear(day(age($animation_datetime, layer_time_column)) , 0, 7, 255, 0))
Size expression:
scale_linear(day(age($animation_datetime, layer_time_column)) , 0, 7, 30, 0)
Would result in something like:
http://www.youtube.com/watch?v=pM8XbzdlZIg
Even these kind of maps (from 0:22 onward) http://www.youtube.com/watch?v=cUhrEMEQfXw would be possible!
History
#1
Updated by Regis Haubourg about 10 years ago
Hi, +1 with that, especially fading option and $animation_datetime, that would help a lot for visual interprétation.
Cheers
Régis
#2
Updated by Giovanni Manghi over 7 years ago
- Easy fix? set to No
#3
Updated by Jürgen Fischer about 7 years ago
- Category set to Unknown