{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857941,-0.513749,0.000000,0.000000,0.263075,-0.439325,0.858944,0.000000,-0.440501,0.735620,0.514609,0.000000,-2812068.939180,4696049.114517,3263166.971121,1],    "boundingVolume": {    "region": [2.110263,0.540489,2.110427,0.540614,0.000000,30.492566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_402926.b3dm"}}}