{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944020,-0.329887,0.000000,0.000000,0.184402,-0.527692,0.829178,0.000000,-0.272959,0.781113,0.561566,0.000000,-1742810.418933,4987311.044059,3561528.455496,1],    "boundingVolume": {    "region": [1.906932,0.596220,1.907028,0.596335,0.000000,8.741555]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1268681.b3dm"}}}