{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943838,-0.330408,0.000000,0.000000,0.183870,-0.525239,0.830852,0.000000,-0.273947,0.782553,0.559074,0.000000,-1749104.948292,4996460.160812,3545690.470419,1],    "boundingVolume": {    "region": [1.907478,0.593178,1.907587,0.593359,0.000000,8.741806]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1319900.b3dm"}}}