{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942966,-0.332890,0.000000,0.000000,0.186468,-0.528201,0.828392,0.000000,-0.275180,0.779493,0.562731,0.000000,-1757001.080651,4976991.777692,3568933.835516,1],    "boundingVolume": {    "region": [1.910101,0.597646,1.910226,0.597726,0.000000,8.729947]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1287473.b3dm"}}}