{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949096,-0.314986,0.000000,0.000000,0.176065,-0.530509,0.829193,0.000000,-0.260634,0.785326,0.561545,0.000000,-1664115.904120,5014215.120680,3561392.432297,1],    "boundingVolume": {    "region": [1.891169,0.596198,1.891307,0.596305,0.000000,8.725550]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1446888.b3dm"}}}