{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949048,-0.315132,0.000000,0.000000,0.176024,-0.530111,0.829456,0.000000,-0.260838,0.785538,0.561153,0.000000,-1665419.904409,5015559.322469,3558905.958214,1],    "boundingVolume": {    "region": [1.891323,0.595725,1.891461,0.595832,0.000000,7.424312]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1374482.b3dm"}}}