{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949066,-0.315078,0.000000,0.000000,0.176122,-0.530509,0.829181,0.000000,-0.260706,0.785290,0.561562,0.000000,-1664577.776969,5013984.171122,3561501.006557,1],    "boundingVolume": {    "region": [1.891266,0.596219,1.891403,0.596325,0.000000,8.768397]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447266.b3dm"}}}