{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950542,-0.310597,0.000000,0.000000,0.173371,-0.530578,0.829716,0.000000,-0.257166,0.787024,0.560767,0.000000,-1641971.089872,5025035.637193,3556449.909216,1],    "boundingVolume": {    "region": [1.886560,0.595255,1.886675,0.595369,0.000000,8.803719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1345425.b3dm"}}}