{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944302,-0.329080,0.000000,0.000000,0.183949,-0.527846,0.829181,0.000000,-0.272292,0.781348,0.561562,0.000000,-1738551.598748,4988814.222550,3561504.832407,1],    "boundingVolume": {    "region": [1.906068,0.596235,1.906183,0.596310,0.000000,8.785275]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_851739.b3dm"}}}