海南地图json加载后很小，其他省份显示正常。

[tianr1190]

问题简述 (One-line summary)

海南地图通过json加载后，显示出来的地图很小。同样的option其他省份加载json后显示出来的大小正常。

版本及环境 (Version & Environment)

• ECharts 版本 (ECharts version):
• 浏览器类型和版本 (Browser version):
• 操作系统类型和版本 (OS Version):

  重现步骤 (Steps to reproduce)

1. 2.

期望结果 (Expected behaviour)

期望海南也跟其他省份一样正常的显示大小。

可能哪里有问题 (What went wrong)

ECharts配置项 (ECharts option)

option = {

}

其他信息 (Other comments)

海南：

广东省：

[pissang]

因为海南岛的右下角还有个小岛 “三沙市”，可以在 geoJson 中去掉，或者 registerMap 的第二个参数设置这个区域的包围盒更靠近海南岛，参考 http://echarts.baidu.com/gallery/editor.html?c=map-usa

[tianr1190]

不能够啊， 容器还有那么多空白的地方。把海南省包括三沙市布满整个容器，应该是足够大的了。 有没有可以设置缩放级别的参数呢？ 查了一下没找到可以设置缩放比例的参数。

[tianr1190]

实际上我给的容器是这么大：1140px, 800px 可以看出来海南省包括三沙市只占用了一点点的位置。空白的地方还有很多。 而其他省份显示是这样： 能够足够大的布满容器的大部分区域。

[tianr1190]

知道了， 在海南底下还有很多看不见得小点点，那些小岛都属于三沙市。这些占到大部分的面积。

[tianr1190]

我想改一下这个三沙市的地图，只留文字旁边的几个小岛，这样不显示完整的三沙市而只显示文字旁边的几个小岛。这样就能完整的显示整个海南的城市。 可是在geoJson里面看了半天，没看懂。。。。。不知道各个成员的含义用途

[tianr1190]

请教一下，如果想保留三沙市文字旁边的几个小岛，下面的其他小岛都删除掉，应该怎么改下面段呢？

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[pissang]

coordinates下用逗号分隔的一个个UTF-8字符串，每个字符串都是一片区域，你可以删掉后面那些试试

[tianr1190]

encodeOffsets 这个表示什么意思呢？ childNum应该是表示小岛的数量吧？

[pissang]

嗯 childNum 是多边形区域数量，encodeOffsets 是解压需要的信息，跟 coordinates 一一对应

[tianr1190]

可以了， 只保留三沙市前面三个岛显示效果就挺好。效果是这样： 非常感谢 @pissang

[tianr1190]

三沙市的geoJson数据修改后如下： {"id":"460300","geometry":{"type":"MultiPolygon","coordinates":[["@@KCOLAJBJDDVFRHJB\JfVXFZBRATGPMHS@KGKOKqO[QUGQCOAGFCZDFLA\ALHHNLHNFT@JDBJELYAiQaEQESQ","@@HCFCFEBGEKMAMLCHAH","@@KDEFShGJSNGJGJIFCF@HBHDDDBXE^QbcR]DICMCGIC"]],"encodeOffsets":[[[114139,17488],[114143,17487],[115046,17318]]]},"properties":{"cp":[112.34882,16.831039],"name":"三沙市","childNum":3}}

[zhuiluo0987]

你的Echarts是版本几，为什么我删除coordinates的几个数组以后会不能加载海南的地图。而且我用你写的三沙市的geoJson也还是不能加载海南地图了？这是为什么

[tianr1190]

当时用的ECharts 版本是3.0 @zhuiluo0987

[zgn466048148]

修改json以后地图不能使用，似乎是coordinates的值和你的数据不一样，但是使用我这边原本的数据也不行，求修改后的json代码

[DaikonX]

我三沙市只留了一个岛； { "id": "460300", "geometry": { "type": "MultiPolygon", "coordinates": [["@@HCFCFEBGEKMAMLCHAH"]], "encodeOffsets": [[[115046, 17318]]] }, "properties": { "cp": [112.34882, 16.831039], "name": "三沙市", "childNum": 3 } }, 然后在echarts.registerMap的specialAreas参数加入 { 三沙市: { left: 110.63119, top: 18.031971, width: 0.05 } },

具体调整查看https://echarts.apache.org/zh/api.html#echarts.registerMap