{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948819,-0.315820,0.000000,0.000000,0.176355,-0.529824,0.829569,0.000000,-0.261444,0.785457,0.560985,0.000000,-1669283.886813,5015036.830525,3557839.015805,1],    "boundingVolume": {    "region": [1.892069,0.595464,1.892165,0.595687,0.000000,8.800682]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/15_1181797.b3dm"}}}