{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949022,-0.315210,0.000000,0.000000,0.175980,-0.529833,0.829643,0.000000,-0.260962,0.785695,0.560876,0.000000,-1666209.668726,5016557.406725,3557141.009844,1],    "boundingVolume": {    "region": [1.891406,0.595390,1.891543,0.595496,0.000000,8.713676]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1072029.b3dm"}}}