{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896326,-0.443396,0.000000,0.000000,0.283783,-0.573667,0.768358,0.000000,-0.339747,0.686799,0.642556,0.000000,-2169954.205027,4386565.832931,4076514.902738,1],    "boundingVolume": {    "region": [2.030114,0.697770,2.030247,0.697890,0.000000,66.439108]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_540284.b3dm"}}}