{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949478,-0.313835,0.000000,0.000000,0.175432,-0.530753,0.829171,0.000000,-0.259675,0.785621,0.561577,0.000000,-1657992.998563,5016096.223658,3561597.830626,1],    "boundingVolume": {    "region": [1.889976,0.596249,1.890075,0.596331,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444632.b3dm"}}}