{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949022,-0.315210,0.000000,0.000000,0.175975,-0.529818,0.829654,0.000000,-0.260966,0.785706,0.560859,0.000000,-1666233.142031,5016624.292896,3557036.389396,1],    "boundingVolume": {    "region": [1.891406,0.595370,1.891543,0.595476,0.000000,8.811778]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/3_1072301.b3dm"}}}