{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950879,-0.309562,0.000000,0.000000,0.172967,-0.531302,0.829337,0.000000,-0.256191,0.786940,0.561330,0.000000,-1635746.883438,5024514.036325,3560029.120609,1],    "boundingVolume": {    "region": [1.885456,0.595882,1.885601,0.596102,0.000000,8.818891]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1422434.b3dm"}}}