{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950698,-0.310120,0.000000,0.000000,0.173439,-0.531692,0.828989,0.000000,-0.256544,0.786456,0.561847,0.000000,-1638002.916806,5021433.548083,3563314.517370,1],    "boundingVolume": {    "region": [1.886033,0.596532,1.886198,0.596701,0.000000,8.791633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/2_1392899.b3dm"}}}