{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951981,-0.306157,0.000000,0.000000,0.169696,-0.527662,0.832331,0.000000,-0.254296,0.790723,0.556858,0.000000,-1623621.773516,5048581.254706,3531607.923204,1],    "boundingVolume": {    "region": [1.881896,0.590555,1.882003,0.590642,0.000000,7.521061]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/28/29_1382693.b3dm"}}}