{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898473,-0.439029,0.000000,0.000000,0.283819,-0.580835,0.762940,0.000000,-0.334010,0.683552,0.648995,0.000000,-2133371.729908,4365947.758595,4117474.724007,1],    "boundingVolume": {    "region": [2.025263,0.706225,2.025364,0.706300,0.000000,17.966009]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1817701.b3dm"}}}