{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950521,-0.310659,0.000000,0.000000,0.173755,-0.531637,0.828958,0.000000,-0.256980,0.786281,0.561893,0.000000,-1640791.643313,5020314.377619,3563606.472792,1],    "boundingVolume": {    "region": [1.886634,0.596623,1.886732,0.596722,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1394381.b3dm"}}}