{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950181,-0.311699,0.000000,0.000000,0.173855,-0.529980,0.829997,0.000000,-0.258166,0.786994,0.560349,0.000000,-1648354.133675,5024836.321519,3553795.710441,1],    "boundingVolume": {    "region": [1.887695,0.594742,1.887859,0.594873,0.000000,8.813611]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1459891.b3dm"}}}