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Add group labels to Finish SVG; update time lapse instructions.

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Timothy Allen 2019-10-10 14:22:05 +02:00
parent c3121d7217
commit d328fea37a
2 changed files with 2550 additions and 2668 deletions
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5202
Finish vector map/output_15.svg
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16
GIS Base Map/timelapse.md
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@ -2,12 +2,12 @@
Set begin on each route to the start time of each race.
Use Locate Points on Line to create a layer that has one point every meter (about 35000 total). On a EPSG:4326 projection, this means intervals of 0,00001. Turn on "Keep Attributes" as well.
Use Locate Points on Line to create a layer that has one point every ten meters (about 3500 total). On a EPSG:4326 projection, this means intervals of 0,0001. Turn on "Keep Attributes" as well.
Each point will have a "distance" field, which calculates the distance of that point along the route. This may well be in hundreds of kilometers; check out the maximum value of the field, and if necessary, convert the distance to meters with the field calculator:
Update distance:
```
"distance" * 100000
"distance_1" * 100000
```
(The longest `distance` element should be around 21000).
@ -17,10 +17,14 @@ Generate a second-based offset for the first and last runner past each meter, an
5*60+((10*60)/1000)*"distance"
```
Then, calculate
first_runner (string):
to_time(to_datetime( "begin" ) + ((3*60/1000*"distance")+0.01) || ' seconds')
last_runner (string):
to_time(to_datetime( "begin" ) + (5*60+(10*60/1000*"distance")) || ' seconds')
first_time (String of length 20):
```
to_datetime( "begin" ) + (((3*60/1000*"distance_1")+0.01) || ' seconds')
```
last_time (String of length 20):
```
to_datetime( "begin" ) + (((5*60)+(10*60*"distance_1")/1000) || ' seconds')
```
Then use this layer as your starting point for Time Manager. Remember to save and mark the layer as read-only before starting.