{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948992,-0.315301,0.000000,0.000000,0.175968,-0.529628,0.829777,0.000000,-0.261080,0.785798,0.560677,0.000000,-1666957.641198,5017208.068850,3555881.163663,1],    "boundingVolume": {    "region": [1.891522,0.595108,1.891617,0.595299,0.000000,8.774862]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/29_1073589.b3dm"}}}