{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898675,-0.438616,0.000000,0.000000,0.283720,-0.581311,0.762614,0.000000,-0.333552,0.683411,0.649379,0.000000,-2130449.952684,4365053.251463,4119918.725133,1],    "boundingVolume": {    "region": [2.024804,0.706730,2.024905,0.706805,0.000000,7.178991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/9_1819939.b3dm"}}}