{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949065,-0.315080,0.000000,0.000000,0.176139,-0.530557,0.829147,0.000000,-0.260697,0.785257,0.561613,0.000000,-1664520.204742,5013769.558750,3561827.827591,1],    "boundingVolume": {    "region": [1.891269,0.596281,1.891406,0.596387,0.000000,8.725550]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1416012.b3dm"}}}