{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949479,-0.313831,0.000000,0.000000,0.115189,-0.348497,0.930205,0.000000,-0.291662,0.882406,0.369178,0.000000,-1861107.487034,5630678.197759,2339972.568769,1],    "boundingVolume": {    "region": [1.889937,0.378000,1.890106,0.378249,0.000000,13.038800]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_15532.b3dm"}}}