{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898144,-0.439701,0.000000,0.000000,0.281170,-0.574325,0.768827,0.000000,-0.337123,0.688616,0.641994,0.000000,-2153188.952159,4398157.911597,4072936.979962,1],    "boundingVolume": {    "region": [2.026016,0.697068,2.026109,0.697124,0.000000,25.371084]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/6_752784.b3dm"}}}