{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949672,-0.313247,0.000000,0.000000,0.174774,-0.529863,0.829879,0.000000,-0.259412,0.786459,0.560525,0.000000,-1656308.114351,5021426.350323,3554909.679441,1],    "boundingVolume": {    "region": [1.889326,0.594886,1.889488,0.595152,0.000000,8.486826]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1357631.b3dm"}}}