{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949332,-0.314274,0.000000,0.000000,0.175691,-0.530713,0.829142,0.000000,-0.260029,0.785473,0.561620,0.000000,-1660252.453071,5015154.305196,3561869.907857,1],    "boundingVolume": {    "region": [1.890438,0.596301,1.890537,0.596383,0.000000,8.777598]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416237.b3dm"}}}