{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950617,-0.310367,0.000000,0.000000,0.173308,-0.530823,0.829573,0.000000,-0.256931,0.786949,0.560980,0.000000,-1640470.237230,5024561.049925,3557803.665224,1],    "boundingVolume": {    "region": [1.886318,0.595512,1.886433,0.595626,0.000000,8.777683]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/10_1451734.b3dm"}}}