{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948866,-0.315680,0.000000,0.000000,0.176346,-0.530058,0.829422,0.000000,-0.261281,0.785354,0.561205,0.000000,-1668246.095477,5014385.059048,3559234.758444,1],    "boundingVolume": {    "region": [1.891901,0.595788,1.892038,0.595894,0.000000,8.587410]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1147380.b3dm"}}}