{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952427,-0.304766,0.000000,0.000000,0.168752,-0.527370,0.832709,0.000000,-0.253257,0.791455,0.556291,0.000000,-1616982.987426,5053246.744210,3528003.644802,1],    "boundingVolume": {    "region": [1.880435,0.589872,1.880543,0.589959,0.000000,8.571082]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/14/21_1462981.b3dm"}}}