I have been using pathroutr for acoustic telemetry used to track fish movement. Acoustic telemetry relies on stationary receivers to listen for transmitters implanted into the fish. I have wanted to use pathroutr to calculate the shortest distances between receivers that a fish theoretical could take.
I have ran into some of my own issues with getting paths to coerce within the confinement of the lake I am working on and thought that maybe if I force the network created by prt_visgraph() to have additional nodes where the receivers are located that might alleviate the issue. However, when providing prt_visgraph()'s the argument aug_points I have found two bugs, the first is that within the prt_visgraph(), augment points is called two different things without being properly assigned see lines 86-108. Within the function it first checks to see if aug_points is a sf POINT object, it then uses aug_pts as the name of aug_points yet aug_points has not been reassigned the name aug_pts. To get this to run, I've just updated my local copy.
The second issue is that once this is corrected and I supply aug_points with a sf POINT object, you have to provide the augmented points by directly calling the geometry of the sf object, such as aug_points = df_utm$geometry. It would be nice if you could just supply the sf object without having to call the geometry directly.
Thanks and thank you for making such a great package!
Hi Josh,
I have been using pathroutr for acoustic telemetry used to track fish movement. Acoustic telemetry relies on stationary receivers to listen for transmitters implanted into the fish. I have wanted to use pathroutr to calculate the shortest distances between receivers that a fish theoretical could take.
I have ran into some of my own issues with getting paths to coerce within the confinement of the lake I am working on and thought that maybe if I force the network created by
prt_visgraph()to have additional nodes where the receivers are located that might alleviate the issue. However, when providingprt_visgraph()'s the argumentaug_pointsI have found two bugs, the first is that within theprt_visgraph(), augment points is called two different things without being properly assigned see lines 86-108. Within the function it first checks to see ifaug_pointsis a sf POINT object, it then usesaug_ptsas the name ofaug_pointsyetaug_pointshas not been reassigned the nameaug_pts. To get this to run, I've just updated my local copy.The second issue is that once this is corrected and I supply
aug_pointswith a sf POINT object, you have to provide the augmented points by directly calling the geometry of the sf object, such asaug_points = df_utm$geometry. It would be nice if you could just supply the sf object without having to call the geometry directly.Thanks and thank you for making such a great package!