{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950857,-0.309629,0.000000,0.000000,0.172868,-0.530869,0.829635,0.000000,-0.256340,0.787207,0.560888,0.000000,-1636693.754070,5026210.432777,3557217.118851,1],    "boundingVolume": {    "region": [1.885527,0.595348,1.885672,0.595567,0.000000,8.800975]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/10_1448746.b3dm"}}}