Fixed an issue in updatePositions(...) where unconstrained bounds could be passed into the calculateVMG function (e.g., lower = -182391, upper = 188221), but they need to be in the interval [0, 360).
Mock.Polars:
Added more test cases. Still working on getting the assertions correct.
Refactored and bugfixed the calculateVMG(...) function. There were a few bugs (and ugly "fixes") because we didn't bother enforcing a strict interval on the lower and upper bound angles.
Also added a few more comments to explain the function better.
#story[873]
- Error where mock would not read in the files when running from the jar.
- Error where the AC35 stream now no longer sends us packets with information that is set for 0 for boat location.
#story[881] #pair[fwy13, esa46]
- Error where mock would not read in the files when running from the jar.
- Error where the AC35 stream now no longer sends us packets with information that is set for 0 for boat location.
#story[881] #pair[fwy13, esa46
An alternate tacking implementation during race simulate. Doesn't handle keeping the boats in-bounds, and sometimes has issues with landing directly on a mark.
Also seems to use wrong starting velocities (from the XML file).
#story[873]
Fixed a bug where calculateVMG was placing velocity into the VMG object, instead of speed.
Maybe fixed a bug when a bearingLowerBound which is greater than bearingUpperBound is provided.
Added another test case.
Mock.Constants:
Added knots to millimeters per second conversion factor.
Mock.Boat:
Added calculateDIstanceToNextMarker function, which returns the distance, in nautical miles, to the next mark.
Mock.Race:
Added wind direction as a race property.
Added wind speed as a race property.
The race status messages sent by Race now use Race's wind speed and direction.
#story[873]
made speed and bearing members private - had accidentally forget the visibility specifier.
Mock.Polars:
Added linear interpolation between speed values (e.g., if the wind speed is 15.9kn, it will interpolate between the 12kn and 16kn data). This allows for wind speeds less than 4kn (the lowest wind speed in the data file). It does not extrapolate anything for wind speeds larger than 30kn (the largest wind speed in the data file).
Also refactored some of the code into some interpolation functions.
#story[873]
- StreamedRace no longer sets the positions of boats
- The Visualiser has blocking queue removed
- The Regatta XML Reader not longer has a variable to the deleted Regatta class
#story[881]
Fixed a bug where duplicate estimates could be added to the Polar table (this happened when the angle was 0, so the "negative" angle became 360, which is equivalent).
Now has a list of angle values for each wind speed, rather than checking if Pair<WindSpeed, WindAngle> exists in the map.
calculateVMG now uses linear interpolation between two adjacent angles (e.g., if data file contains angles 0, 30, 45, etc.. it can interpolate and find an optimal VMG angle between those, for example, 17 degrees).
Added a third test for when we provide a wind speed which is lower than any wind speed values in the Polars table. Still need to actually calculate correct VMG values by hand.
#story[873]
Mock.Polars. addEstimate also builds up a unique list of angles from the data file, instead of dynamically generating that when calculating a VMG.
addEstimate also adds estimates with negative angles (e.g., 45deg+windSpeed+boatSpeed, and -45deg+windSpeed+boatSpeed).
calculateVMG now accepts an upper and lower bounds to the allowed VMG bearing it returns - this way you can get VMGs only within a certain angle interval (e.g., [16, 99] degrees).
Also fixed some bugs in calculateVMG where it wasn't actually using the angles and such correctly.
Improved the test case slightly, but still need to calculate correct values by hand.
#story[873]
-race class now stores the boundary
-updatePositions now checks if the boat is with the course
-update positions now sets heading and speed based on the vmg
-updated azimuth to now accept a start and finish gps rather that finding it itself
-added a calculatebearingtodestination method that finds the azimuth to the dest from the boat
-updated boat tests to use the new azimuth method
#story[873]
- The issue was with accuracy. Average of two coords is fine fo two point fairly close together (<1km), but not for very very large distances.
- We only ever use it for small ranges so changed tests to reflect that
#story[881]
Added the Polars.calculateVMG function, which calculates the VMG from a given wind angle, wind speed, and angle to destination. In may not be completely correct at the moment, so it's a work in progress.
#story[873]
fjc40
Joseph Gardner
Fan-Wu Yang
hba56
zwu18
Erika Savell
Jessica McAuslin