{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942689,-0.333674,0.000000,0.000000,0.186994,-0.528291,0.828216,0.000000,-0.275769,0.779097,0.562991,0.000000,-1760761.998489,4974470.423034,3570584.051234,1],    "boundingVolume": {    "region": [1.910932,0.597969,1.911057,0.598031,0.000000,8.482968]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/21_1250195.b3dm"}}}