Files
allwpilib/apriltag
Tyler Veness e172aa66f7 [wpimath] Java: add static instantiations of common rotations (#6563)
C++ doesn't need this because it supports value types, which are much
cheaper to construct. constexpr is also available to make construction
zero-cost.
2024-05-03 12:39:35 -07:00
..

AprilTag

Adding new field to AprilTagFields

Adding field JSON

  1. Add a field layout CSV file to src/main/native/resources/edu/wpi/first/apriltag
    1. See docstring in convert_apriltag_layouts.py for more
  2. Run convert_apriltag_layouts.py in the same directory as this readme to generate the JSON
  3. That script overwrites all generated JSONs, so undo undesired changes if necessary
  4. Update the field dimensions at the bottom of the JSON
    1. Length should be in meters from alliance wall to alliance wall
    2. Width should be in meters from inside guardrail plastic to plastic

Java updates

  1. Update src/main/java/edu/wpi/first/apriltag/AprilTagFields.java
    1. Add enum value for new field to AprilTagFields
    2. Update AprilTagFields.kDefaultField if necessary

C++ updates

  1. Update src/main/native/include/frc/apriltag/AprilTagFields.h
    1. Add enum value for new field to AprilTagFields
    2. Update AprilTagFields::kDefaultField if necessary
  2. Update src/main/native/cpp/AprilTagFields.cpp
    1. Add resource getter prototype like std::string_view GetResource_2024_crescendo_json()
    2. Add case for new field to switch in LoadAprilTagLayoutField()