{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949488,-0.313805,0.000000,0.000000,0.175414,-0.530755,0.829174,0.000000,-0.259650,0.785632,0.561573,0.000000,-1657837.141973,5016165.882593,3561572.445293,1],    "boundingVolume": {    "region": [1.889944,0.596245,1.890043,0.596326,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444570.b3dm"}}}