{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898001,-0.439993,0.000000,0.000000,0.284410,-0.580464,0.763002,0.000000,-0.334771,0.683249,0.648921,0.000000,-2138231.405856,4364012.612642,4117008.515432,1],    "boundingVolume": {    "region": [2.026321,0.706054,2.026453,0.706277,0.000000,9.329967]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1820450.b3dm"}}}