{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950562,-0.310533,0.000000,0.000000,0.172122,-0.526876,0.832332,0.000000,-0.257931,0.789545,0.556858,0.000000,-1646832.252449,5041058.885700,3531606.403266,1],    "boundingVolume": {    "region": [1.886465,0.590536,1.886635,0.590660,0.000000,6.661169]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/19_1322365.b3dm"}}}