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Suggestions / Race distance!
« on: April 26, 2011, 02:45:29 pm »
Many races have wrong distance, for example DoubleYou shows over 2 miles, while it have like 700 meters.
This way can help calculate distance a bit more accurate.
Red dots = checkpoints
Red lines = track
Yellow lines = distance between checkpoints
Green lines = X and Y distance between checkpoints
Checking distance between 2nd grid and 1st cp
1008.788024 2557.533203 10.429699 54.668498
841.711914 2630.111572 11.824199
X distance: (1008.788024)-(841.711914)=(167.07611)
Y distance: (2557.533203)-(2630.111572)=(72.578369)
Z distance: (10.429699)-(11.824199)=(1.4115)
horizontal distance:
X distance2+Y distance2=horizontal distance2
167.076112+72.5783692=
27914.4265327321+5267.619646700161=33182.046179010161
sqrt 33182.046179010161=182.15939772356012321577005465159
so horizontal distance = 182.15939772356012321577005465159 meters
now total distance:
horizontal distance2+Z distance2=total distance2
182.159397723560123215770054651592+1.41152=
33182,046179010161+1.99233225=33184.038511260161
sqrt 33184.038511260161=182.1648662922138808989957690671
so total distance between 2nd grid and 1st checkpoint = 182.1648662922138808989957690671
now do same to check total distance between 1st checkpoint and 2nd checkpoint
then same for total distance between 2nd checkpoint and 3rd checkpoint
then same for all other checkpoints
later sum up all total distances:
total distance between 2nd grid and 1st checkpoint (for example, as we counted 182.1648662922138808989957690671)
+total distance between 1st checkpoint and 2nd checkopint (for example let's say 230)
+total distance between 2nd checkpoint and 3rd checkpoint (for example let's say 138)
+same for rst checkpoints (for example let's say 2375)
then:
sum of all distances/1.609344=race distance in miles
182.1648662922138808989957690671+230+138+2375=2925.1648662922138808989957690671
2925.1648662922138808989957690671/1.609344=~1.8 mile
so total race distance is around 1.8 mile
I think I explained it enough, and hope You understand what I mean.
In short:
X distance2+Y distance2=horizontal distance2
horizontal distance2+Z distance2=total distance2
then same for all checkpoints
sum up all distances
sum of all distances/1.609344=race distance in miles
This way can help calculate distance a bit more accurate.
Red dots = checkpoints
Red lines = track
Yellow lines = distance between checkpoints
Green lines = X and Y distance between checkpoints
Quote from: Example_Race
MadMaxHow?
No Extra Information
475 565
0 0
15 300 12 11 1 0 14 0 0 0 0
0 0 2
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
998.781677 2542.633300 10.416600 55.077098
1008.788024 2557.533203 10.429699 54.668498
841.711914 2630.111572 11.824199
535.701782 2657.115234 47.222698
417.870513 2692.186767 60.096099
230.388107 2749.940673 59.647598
-63.614200 2636.860595 63.580600
-170.334197 2636.117187 63.266998
-407.809906 2714.776855 62.131000
-962.901611 2715.850341 45.671798
-1207.825805 2687.505126 45.732498
-1343.134643 2636.756347 50.563201
Checking distance between 2nd grid and 1st cp
1008.788024 2557.533203 10.429699 54.668498
841.711914 2630.111572 11.824199
X distance: (1008.788024)-(841.711914)=(167.07611)
Y distance: (2557.533203)-(2630.111572)=(72.578369)
Z distance: (10.429699)-(11.824199)=(1.4115)
horizontal distance:
X distance2+Y distance2=horizontal distance2
167.076112+72.5783692=
27914.4265327321+5267.619646700161=33182.046179010161
sqrt 33182.046179010161=182.15939772356012321577005465159
so horizontal distance = 182.15939772356012321577005465159 meters
now total distance:
horizontal distance2+Z distance2=total distance2
182.159397723560123215770054651592+1.41152=
33182,046179010161+1.99233225=33184.038511260161
sqrt 33184.038511260161=182.1648662922138808989957690671
so total distance between 2nd grid and 1st checkpoint = 182.1648662922138808989957690671
now do same to check total distance between 1st checkpoint and 2nd checkpoint
then same for total distance between 2nd checkpoint and 3rd checkpoint
then same for all other checkpoints
later sum up all total distances:
total distance between 2nd grid and 1st checkpoint (for example, as we counted 182.1648662922138808989957690671)
+total distance between 1st checkpoint and 2nd checkopint (for example let's say 230)
+total distance between 2nd checkpoint and 3rd checkpoint (for example let's say 138)
+same for rst checkpoints (for example let's say 2375)
then:
sum of all distances/1.609344=race distance in miles
182.1648662922138808989957690671+230+138+2375=2925.1648662922138808989957690671
2925.1648662922138808989957690671/1.609344=~1.8 mile
so total race distance is around 1.8 mile
I think I explained it enough, and hope You understand what I mean.
In short:
X distance2+Y distance2=horizontal distance2
horizontal distance2+Z distance2=total distance2
then same for all checkpoints
sum up all distances
sum of all distances/1.609344=race distance in miles