{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950528,-0.310638,0.000000,0.000000,0.173366,-0.530487,0.829775,0.000000,-0.257219,0.787069,0.560679,0.000000,-1642304.499912,5025324.846655,3555891.038214,1],    "boundingVolume": {    "region": [1.886569,0.595133,1.886752,0.595279,0.000000,8.784621]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/15_1450095.b3dm"}}}