check_istree becomes a connectivity check

LI3DS / pg-li3ds

PostgreSQL extension for managing 3D sensor data

MIT License

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check_istree becomes a connectivity check #53

Closed ldgeo closed 7 years ago

ldgeo commented 7 years ago

this PR removes the sensor attribute for transfotree, changes the check_istree function to become a check on connectivity + a minor flag checking that there is a unique transformation between two referentials