{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948947,-0.315434,0.000000,0.000000,0.175985,-0.529431,0.829899,0.000000,-0.261229,0.785878,0.560496,0.000000,-1667909.631814,5017716.246383,3554725.299637,1],    "boundingVolume": {    "region": [1.891663,0.594889,1.891758,0.595079,0.000000,6.961787]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/28_1075711.b3dm"}}}