{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950537,-0.310612,0.000000,0.000000,0.173355,-0.530504,0.829767,0.000000,-0.257194,0.787068,0.560691,0.000000,-1642149.794696,5025320.401943,3555968.246409,1],    "boundingVolume": {    "region": [1.886575,0.595163,1.886691,0.595277,0.000000,8.591522]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1450206.b3dm"}}}