{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949962,-0.312364,0.000000,0.000000,0.174721,-0.531362,0.828931,0.000000,-0.258382,0.785793,0.561932,0.000000,-1649743.288485,5017200.175541,3563857.765051,1],    "boundingVolume": {    "region": [1.888408,0.596616,1.888546,0.596825,0.000000,8.760017]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/4_1407419.b3dm"}}}