{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897607,-0.440797,0.000000,0.000000,0.285922,-0.582231,0.761088,0.000000,-0.334535,0.681223,0.651170,0.000000,-2136743.966738,4351112.468930,4131313.236120,1],    "boundingVolume": {    "region": [2.027207,0.709011,2.027358,0.709238,0.000000,19.173071]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1780051.b3dm"}}}