{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950034,-0.312145,0.000000,0.000000,0.174301,-0.530497,0.829573,0.000000,-0.258403,0.786466,0.560980,0.000000,-1649869.059088,5021483.094060,3557803.102319,1],    "boundingVolume": {    "region": [1.888165,0.595503,1.888329,0.595634,0.000000,8.688565]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/15_1457123.b3dm"}}}