{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949079,-0.315037,0.000000,0.000000,0.176100,-0.530518,0.829180,0.000000,-0.260673,0.785300,0.561564,0.000000,-1664362.718444,5014046.749118,3561513.331575,1],    "boundingVolume": {    "region": [1.891224,0.596221,1.891361,0.596327,0.000000,8.793916]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447325.b3dm"}}}