{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898450,-0.439076,0.000000,0.000000,0.283963,-0.581053,0.762720,0.000000,-0.333949,0.683336,0.649253,0.000000,-2132983.010612,4364574.411144,4119120.681610,1],    "boundingVolume": {    "region": [2.025316,0.706565,2.025416,0.706640,0.000000,6.717947]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1819303.b3dm"}}}