{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898068,-0.439856,0.000000,0.000000,0.284337,-0.580540,0.762971,0.000000,-0.334653,0.683272,0.648958,0.000000,-2137480.216737,4364159.419730,4117241.394804,1],    "boundingVolume": {    "region": [2.026169,0.706103,2.026301,0.706325,0.000000,26.925476]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820997.b3dm"}}}