{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950212,-0.311605,0.000000,0.000000,0.174171,-0.531117,0.829204,0.000000,-0.257840,0.786260,0.561528,0.000000,-1646278.734561,5020173.580837,3561289.034249,1],    "boundingVolume": {    "region": [1.887609,0.596127,1.887747,0.596336,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1432549.b3dm"}}}