gods-eye-view/changelog.d/1172-cctv-missing-numbers.md

• Keep missing CCTV numbers unknown instead of reading them as zero. Number turns null, blank strings and booleans into 0 or 1, and the camera source list sends an unknown number as JSON null, so a source-pack camera that left out its pose reached the browser as zeros clamped to each field's floor — facing north, pitch −2°, FOV 20°, range 120 m, mount 6 m and ground 0 m — instead of the defaults (id-hash heading, −17°, 74°, 700 m, 24 m and the city's ground); a null or blank position placed the camera at 0,0. The server's toFiniteNumber and the browser's safeNumber now treat absent, blank and boolean values as missing. The same conversion also stops a Tallinn row with a null heading reading as a confident north-facing camera, a Caltrans camera with a blank elevation losing its 150 m ground prior, and a TfL or Catalonia camera with a null or blank coordinate being kept at 0,0 or on the zero meridian (omerbberk, #1172).