{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949746,-0.313023,0.000000,0.000000,0.175002,-0.530976,0.829119,0.000000,-0.258986,0.785793,0.561654,0.000000,-1653597.678777,5017195.781888,3562089.110616,1],    "boundingVolume": {    "region": [1.889094,0.596300,1.889247,0.596468,0.000000,9.258883]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1335816.b3dm"}}}