update cappi - #146
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Replace 3D point-cloud KDTree approach with sweep-based interpolation matching pycwr's get_CAPPI_xy algorithm: - Spherical geometry Cartesian→Antenna reverse transform - Bilinear (azimuth × range) interpolation within each sweep with proper 0/360° wraparound handling - Linear elevation interpolation between sweeps - Beam-width based blind zone masking - Fully numba JIT-compiled kernel (parallel prange) → ~55× faster - Pure Python fallback when numba is not available - 18 test cases validating correctness, symmetry, edge cases Files: - cinrad/calc.py: CAPPI class + HAS_NUMBA auto-detection - cinrad/cappi_numba.py: @njit(parallel=True) kernel (new) - cinrad/__init__.py: export CAPPI - test/test_cappi.py: 18 tests (new)
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性能优化