{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943154,-0.332355,0.000000,0.000000,0.186161,-0.528287,0.828406,0.000000,-0.274743,0.779662,0.562710,0.000000,-1754207.320234,4978072.836657,3568801.278040,1],    "boundingVolume": {    "region": [1.909533,0.597621,1.909658,0.597701,0.000000,8.765349]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1286546.b3dm"}}}