{ "layers": [ { "layerId": 0, "layerName": "矿区资源储量估算范围", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "57fc1e5d5f7ae53a6988d59c86dae52c", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAGxJREFUOI1jYaAyYKGZgV+rt/2n1DDuVi9GFnQBZP7X6m3/0cXQAUwNzEE4vUyKYchiWA0k1zCsBlJiGIaBlBqGYSClhmEYSKlhRBtIrGFEGUhsuBJl4GjCJkrNEEvYxJSJuNTALGJBF6AUAABh0nxRRDEAWQAAAABJRU5ErkJggg==", "contentType": "image/png", "height": 20, "width": 20 } ] } ] }