{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951978,-0.306165,0.000000,0.000000,0.169654,-0.527515,0.832434,0.000000,-0.254335,0.790819,0.556704,0.000000,-1623867.784068,5049189.710861,3530631.393180,1],    "boundingVolume": {    "region": [1.881905,0.590370,1.882013,0.590457,0.000000,8.509643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/28/27_1322856.b3dm"}}}