{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951172,-0.308661,0.000000,0.000000,0.171343,-0.528013,0.831772,0.000000,-0.256202,0.789515,0.557698,0.000000,-1635793.869232,5040883.347934,3536946.990944,1],    "boundingVolume": {    "region": [1.884527,0.591566,1.884635,0.591654,0.000000,7.812064]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/54/42_1382999.b3dm"}}}