{
 "layers": [
  {
   "layerId": 1,
   "layerName": "HKC_围堰",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "f623c6cb7e1a45edfb2211af0237027d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFNJREFUOI1jYaAyYBk1cNTAQWNgdZ0vOyOTMSUGcTMybX7XXHeWhYGBgUGIieXZ1///KDLw3b8/UgwMDBAD3zXXnWVgYDhLiYEwMFQiZdTA4W0gADIvEMxDH41FAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "HKC_溢洪道",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "f189a8eda671dbf419c1f532e7597b75",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFVJREFUOI1jYaAyYBk1cNTAwWJgwmoG3/8M7MaUGPTnP/fmpWHvzrIwMDAw/P4v9IyF8StFBrIyvpNiYGCAGLg07N1ZBgaGs5QYCANDJFJGDRzmBgIAVogRzjlL2z0AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 3,
   "layerName": "HKC_引水发电洞",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "494f9734126b972eb74b79251981fe14",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFRJREFUOI1jYaAyYBk1cNTAwWLghgQGX0ZGdmNKDGJk4t7sN/fdWRYGBgYGJmahZ///faXIwH9/30kxMDBADPSb++4sAwPDWUoMhIEhEimjBg5zAwH48RC2uMdo7wAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 4,
   "layerName": "HKC_放水管",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "4f986d7d421e9a5920c269b6ee089fa6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFRJREFUOI1jYaAyYBk1cNTAwWJgHUO1LxM7ozElBjFxM26ue9d8loWBgYGBRYjp2b+v/yky8M+7f1IMDAwQA+veNZ9lYGA4S4mBMDBEImXUwGFuIAAxwhDMkbPiRgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 5,
   "layerName": "xxy_库区控制点",
   "layerType": "Feature Layer",
   "minScale": 500000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "34f092ef932897f8b5276eb23f47c195",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAPFJREFUOI3t1L0rBHAcBvDPXZffKeq6YlNHynLlulImXVmUlZTsxhvdYFbK7AYWZbHZlWS9vPwBxGC58boMvwxnUtJxb6LkGZ/v02f8pnxzUv/gz4B1yuPsJ3gZGGwwdcZenjFsDwzecrxM6oZyi90Ezb7B+xCWnmOcT2OGkRpVbPQNPsZYLZGALO5ZbVIZ5aln8CqESjbGXPJdl2eoxhEWewJbpM9j3Cp+6IeRofTA3CS1rsELDgtk2t3yJC85QKEr8I5cnZVsuzWSmGD2mrUiJx3BadaxicYnJgghLIixM4idr6C3xBhP2/V/5Dn8KvgKiRA2YmO2YgIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 6,
   "layerName": "HKC_电站",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "bffccaa438417ed7fa25b8af3681a5fc",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFVJREFUOI1jYaAyYBk1cNTAwWLgM38GX4Z/7MaUGMT4h3uz5PZ3Z1kYGBgYGH8JPfvP8pUiA/+zvZNiYGCAGCi5/d1ZBgaGs5QYCANDJFJGDRzmBgIAjA8RoR6RygMAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 7,
   "layerName": "HKC_导流泄洪洞",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "859705da8722cfddf67d229a16184edb",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFNJREFUOI1jYaAyYBk1cNTAQWPgvA5fdkYGY0oM4mb4v/ldYuVZFgYGBgYhxv/PvjIwUmTgu/+MUgwMDBAD3yVWnmVgYDhLiYEwMFQiZdTA4W0gAA/XD6kzs2T0AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 8,
   "layerName": "HKC_大坝",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "a115c288137b11774cfcaba7bb506e39",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFNJREFUOI1jYaAyYBk1cNTAQWPgsiJfdkZmY0oM4mb4s/ldZP9ZFgYGBgYhxv/PvjIwUGTgu/+MUgwMDBAD30X2n2VgYDhLiYEwMFQiZdTA4W0gADD8D7bmkTjmAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 9,
   "layerName": "xld_库区大坝",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "a383e348cf7e2fa4112789bc4b3175ff",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAV9JREFUOI2t1LFqwkAYB/B/wMFUEQRjhSJkdsgSZ+laOAtOfYfgM8ToM4S8RR1qXiAPcGQsHTKJFIIElBAFHRxsLrmYWhP7n8Lx3e/uuC9XwT+nEn9oumncA1mzscFATTeNVuOBrLeRzZc1Jj25DqkpshHH9aZ8TY0AB1XTTVizscF2uN5GdrzKeZH5oifXMeh30rNf30Yvi6TmfQgIk277iKXvg+0wmx+MZDFFUbLYx+j5CcEm+B0sij22RASbpJADy2DZpMDzBZTAbMf16AVYFlMUZZhuOQamW6MIduXI92N5YEmsqgJ7yoGO601zmvZPTNPnCyAkFyBfdDvWk+tEaopw3G3ukQtjg34Hn96KjWcauziWTQqsEUCYlMBoGO3ywIPabR8RbAL2bzquR/l3sqoCIZGaIjtmGO1Av1bfgJCA1mxsaLqJpe+zVyM/ewrsaXwBSQT+gY3RK9LNOQFs9s+eypr8BQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 10,
   "layerName": "xxy_库区大坝",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "e94365ab00fc4925eca6a56c979b8a9f",
     "imageData": "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",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 12,
   "layerName": "HKC_河道边界",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "ba17d767568464c90a2393f2e9a1acef",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFNJREFUOI1jYaAyYBk1cNTAQWPgkX++7IwMxpQYxM3IuPmdFeNZFgYGBgYhJsZnX///p8jAd//+SzEwMEAMfGfFeJaBgeEsJQbCwFCJlFEDh7eBAD2rEAea4i1FAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 13,
   "layerName": "五级河流",
   "layerType": "Feature Layer",
   "minScale": 800000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "14a212db30666b77d0528ccffff0ea94",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAC5JREFUOI1jYaAyYBk1cNTAQWPg0f//qWKaNSMjjVxozchIXQOpCEYNHDWQDAAAB+wDjrnQEsAAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 14,
   "layerName": "四级河流",
   "layerType": "Feature Layer",
   "minScale": 4000000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "ba17d767568464c90a2393f2e9a1acef",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFNJREFUOI1jYaAyYBk1cNTAQWPgkX++7IwMxpQYxM3IuPmdFeNZFgYGBgYhJsZnX///p8jAd//+SzEwMEAMfGfFeJaBgeEsJQbCwFCJlFEDh7eBAD2rEAea4i1FAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 15,
   "layerName": "二三级河流",
   "layerType": "Feature Layer",
   "minScale": 15000000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "6bebde05b4cdd6bea61274a48c55f74b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAG5JREFUOI3t0rENgDAMBMA38gTuYA1SRYwAO2UO1sgO6byKR8A0YQGSAqT8AKd/6RmdwwMc4EtQiq/mSC2QEJJFUq5YBjC3gObYpXh4JjdhNWqXL2yRVIqH1slwP7FNmQHAIimAo0PLv9xmgN8Cb91TIH2viJplAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 16,
   "layerName": "一级河流",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "b1df2ce520469ce9cb0fbeab4f43eef6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAGhJREFUOI3t0jENgDAUhOG/yWGAERtlxwA60EE14YENGx1R0OYxgALaAZKegC93yYnKUQMb+ALsd/OnsQK+jLKNlIMebC7v5hYkL7AIrtwDwA6RckDywFCI3ZOZugiMNfrBL27TwO+BF9z4GI1KcZmMAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 17,
   "layerName": "134m河道等高线",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "9c0ee825ac0423c320266ee7cec5c4e5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADNJREFUOI1jYaAyYBk1cNTAwWQg+5S/Zygx6GcOswmKgdQCcANhNlDNQGqBUQNHDSQDAADx3AXt+M4v0QAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 18,
   "layerName": "275m河道等高线",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "9c0ee825ac0423c320266ee7cec5c4e5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADNJREFUOI1jYaAyYBk1cNTAwWQg+5S/Zygx6GcOswmKgdQCcANhNlDNQGqBUQNHDSQDAADx3AXt+M4v0QAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 19,
   "layerName": "xld_水系",
   "layerType": "Feature Layer",
   "minScale": 1000000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "d050256b557f4f5f14b8bc4f0ec65962",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFRJREFUOI1jYaAyYBk1cNTAwWJg0eZ/vswMDMaUGPTnP+Pmfj/GsywMDAwM//8zPmNg/E+RgYyM/6UYGBggBvb7MZ5lYGA4S4mBMDBEImXUwGFuIABP/g/JiyXCqAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 20,
   "layerName": "xxy_水系",
   "layerType": "Feature Layer",
   "minScale": 750000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "d050256b557f4f5f14b8bc4f0ec65962",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFRJREFUOI1jYaAyYBk1cNTAwWJg0eZ/vswMDMaUGPTnP+Pmfj/GsywMDAwM//8zPmNg/E+RgYyM/6UYGBggBvb7MZ5lYGA4S4mBMDBEImXUwGFuIABP/g/JiyXCqAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 21,
   "layerName": "黄河下游河道边界",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "d41bc871541e7e359ec83bc835eab5ff",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgTPufJpJiUEZKnzpKAZSC4waOGrgqIGjBtLZQFh5RjUDqQUAB2gFUv18BcYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 22,
   "layerName": "小浪底河道边界",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "d41bc871541e7e359ec83bc835eab5ff",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgTPufJpJiUEZKnzpKAZSC4waOGrgqIGjBtLZQFh5RjUDqQUAB2gFUv18BcYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 24,
   "layerName": "市所在地",
   "layerType": "Feature Layer",
   "minScale": 3000000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "ed3057470dad867bb4b77bb9b0f657bb",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAJxJREFUOI3t0bENgzAQheG/oKcNPTVS5AUoMgtLUERIeAhYIwuwAE1q967ZgOKOIoUFuaT0SSfLT7pP1rngz1VkMIMAdNoOWIFZ2wR2wFT3ULUQF1zwTEAEXiaw7uE+yuX2kDN4nlbQVe1nUDaSpwbOwDUuuONlANtbcis4684oG8GCB2Awg0DUnR2/PJDY3xUQHU4CFvCryuDvtQMJMCNfRkMclQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 25,
   "layerName": "全国市界",
   "layerType": "Feature Layer",
   "minScale": 3000000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "2c3235085836349d83fc25ff9e559351",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAC9JREFUOI1jYaAyYBk1cNTAwWTgv4aGBkoMYoLqp50LmSh0IYaB1AKjBo4aSAYAAK1KBdP5tdvDAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 26,
   "layerName": "黄河下游乡镇",
   "layerType": "Feature Layer",
   "minScale": 750000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "92ca3c1f7c7838433a143a4334eead0d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAQJJREFUOI3tkjFKQ1EQRY/hwxQigWf1FqGljQg2ItpYuAKX4QpcjUVsUgghdmm0ELssYLBwVCTFhRAtzJcU76tfxUanGpi5Z4a5U/HDUf0DfwXYAbrAIzD7DrALbJnZJKV0FxFrkpaBK+C2LXAF2AZ6knD3t4KZ7Ui6boIWgWa2KalXqkk6B/aAfpsNp3WSc1539/2U0jAiRvOBE0kdCjf90BR33wBOIuIYGAGklB7cvQvcfxa4tJBfAEc558v6lhGxCtyUhEWgpIrXd5kBY2C8aMzc7eILNW04AA6B04LwABg26BqBAs6AXTObAs91v6QB8NQWWEP7kt5paQf8UvxB4Aux8GDcfxkzGAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 27,
   "layerName": "小浪底村庄",
   "layerType": "Feature Layer",
   "minScale": 50000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "349dc41c8bce9583ca94bf579354d154",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAALBJREFUOI3t0L0KwkAQBOAJRgfZynsGbRXE0sLKh7ZKYyHYWMcXsEm3yPiDVoIIF7jTRsiUs/AxdyV+nLID/w8ckpyb2d3dCzO7Nk2zzwVHJGeSKkkAAElGci1pkwySnEqqPmqXtA0hLGJL2xZeIr27ez95oZk9Xk9NuUVBd2+79ZIXSjoBGAM4vvckV5J2ySCAGsCE5NLMbu5eABhIOgA454AAUEuqY/+VAyanA7/PEwAoUOMw7YVqAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 28,
   "layerName": "小浪底乡镇",
   "layerType": "Feature Layer",
   "minScale": 750000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "92ca3c1f7c7838433a143a4334eead0d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAQJJREFUOI3tkjFKQ1EQRY/hwxQigWf1FqGljQg2ItpYuAKX4QpcjUVsUgghdmm0ELssYLBwVCTFhRAtzJcU76tfxUanGpi5Z4a5U/HDUf0DfwXYAbrAIzD7DrALbJnZJKV0FxFrkpaBK+C2LXAF2AZ6knD3t4KZ7Ui6boIWgWa2KalXqkk6B/aAfpsNp3WSc1539/2U0jAiRvOBE0kdCjf90BR33wBOIuIYGAGklB7cvQvcfxa4tJBfAEc558v6lhGxCtyUhEWgpIrXd5kBY2C8aMzc7eILNW04AA6B04LwABg26BqBAs6AXTObAs91v6QB8NQWWEP7kt5paQf8UvxB4Aux8GDcfxkzGAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 29,
   "layerName": "黄河下游村庄",
   "layerType": "Feature Layer",
   "minScale": 50000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "349dc41c8bce9583ca94bf579354d154",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAALBJREFUOI3t0L0KwkAQBOAJRgfZynsGbRXE0sLKh7ZKYyHYWMcXsEm3yPiDVoIIF7jTRsiUs/AxdyV+nLID/w8ckpyb2d3dCzO7Nk2zzwVHJGeSKkkAAElGci1pkwySnEqqPmqXtA0hLGJL2xZeIr27ez95oZk9Xk9NuUVBd2+79ZIXSjoBGAM4vvckV5J2ySCAGsCE5NLMbu5eABhIOgA454AAUEuqY/+VAyanA7/PEwAoUOMw7YVqAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 30,
   "layerName": "县",
   "layerType": "Feature Layer",
   "minScale": 750000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "520aa99111f52bbd96c9428ac4465b81",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAHJJREFUOI1jYaAyYIEx2NnZGygx6OfPnw1wA9nZ2Ru6mnLr1VXkyDLs4JGzDH3TVjD8/PmzAe5CdRU5BicHc7Jd2DdtBQPchdQEowaOGjhq4DAz8OCRs2QbcvPOI1QDf/782dA3bQW8CCIHoBSwyAKUAgDrDSSAS/DgzgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 31,
   "layerName": "全国省界",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "513dbac0ad91ff23f04047e9caaa2f54",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAG9JREFUOI3t1KERwCAQBMAXdIDDhwai0tP1kC/iaiMehjh6iAoTLKAynPp5sXPqjEyOeQ8AOgKR1AoCUH9sp3W2C4shCQAhqbWhdVb87rsb5itLbTgzC1zgAn8GxpC6kXKXFiSpAOoE9aQZ2O9jNA8noyDH8AVatgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}