{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949088,-0.315011,0.000000,0.000000,0.116144,-0.349928,0.929549,0.000000,-0.292549,0.881414,0.370843,0.000000,-1866776.971246,5624367.656604,2350537.786614,1],    "boundingVolume": {    "region": [1.891210,0.379859,1.891318,0.379975,0.000000,68.927894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_624.b3dm"}}}