{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950563,-0.310532,0.000000,0.000000,0.173349,-0.530634,0.829686,0.000000,-0.257103,0.787012,0.560813,0.000000,-1641567.711666,5024960.243886,3556740.674840,1],    "boundingVolume": {    "region": [1.886492,0.595310,1.886607,0.595424,0.000000,8.658960]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1450654.b3dm"}}}