{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949065,-0.315080,0.000000,0.000000,0.176122,-0.530505,0.829184,0.000000,-0.260709,0.785292,0.561558,0.000000,-1664595.551745,5013994.558437,3561478.228780,1],    "boundingVolume": {    "region": [1.891269,0.596214,1.891406,0.596321,0.000000,8.768397]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447182.b3dm"}}}