{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949072,-0.315058,0.000000,0.000000,0.116154,-0.349899,0.929559,0.000000,-0.292596,0.881409,0.370818,0.000000,-1867079.404453,5624333.949799,2350379.293493,1],    "boundingVolume": {    "region": [1.891260,0.379832,1.891369,0.379948,0.000000,67.897340]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/17/21_77673.b3dm"}}}