{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949075,-0.315051,0.000000,0.000000,0.176033,-0.530291,0.829339,0.000000,-0.260734,0.785449,0.561327,0.000000,-1664755.095173,5014990.213627,3560011.374891,1],    "boundingVolume": {    "region": [1.891238,0.595935,1.891375,0.596042,0.000000,28.770337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373900.b3dm"}}}