{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950066,-0.312048,0.000000,0.000000,0.174013,-0.529804,0.830077,0.000000,-0.258481,0.786975,0.560231,0.000000,-1650360.821232,5024714.287608,3553041.929213,1],    "boundingVolume": {    "region": [1.888062,0.594599,1.888226,0.594730,0.000000,10.242729]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1377063.b3dm"}}}