{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949065,-0.315080,0.000000,0.000000,0.175868,-0.529739,0.829727,0.000000,-0.260881,0.785812,0.560751,0.000000,-1665688.818520,5017296.898586,3556347.239058,1],    "boundingVolume": {    "region": [1.891268,0.595239,1.891405,0.595345,0.000000,8.805649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1375003.b3dm"}}}