{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950710,-0.310081,0.000000,0.000000,0.173140,-0.530849,0.829592,0.000000,-0.256700,0.787044,0.560952,0.000000,-1638994.697683,5025167.526799,3557628.336449,1],    "boundingVolume": {    "region": [1.886017,0.595478,1.886132,0.595593,0.000000,8.761692]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/10_1451631.b3dm"}}}