{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950048,-0.312105,0.000000,0.000000,0.174034,-0.529760,0.830100,0.000000,-0.258536,0.786982,0.560196,0.000000,-1650710.075666,5024757.402190,3552820.200476,1],    "boundingVolume": {    "region": [1.888123,0.594557,1.888286,0.594688,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458750.b3dm"}}}