1. 前言
本篇博客将会分享一系列的 GeoServer 样式，通过这些样式预先在服务端完成数据渲染，让前端应用更便捷的加载数据服务。
2. 面矢量
示例数据：
{ type: 'FeatureCollection', features: [ { type: 'Feature', properties: { 分类字段: '字段一' }, geometry: { coordinates: [[[158, 44],[158, 40],[165, 40],[165, 44],[158, 44]]], type: 'Polygon' }, id: 0 }, { type: 'Feature', properties: { 分类字段: '字段二' }, geometry: { coordinates: [[[158, 39],[158, 36],[165, 36],[165, 39],[158, 39]]], type: 'Polygon' } }, { type: 'Feature', properties: { 分类字段: '字段三' }, geometry: { coordinates: [[[166, 44],[166, 41],[174, 41],[174, 44],[166, 44]]], type: 'Polygon' } }, { type: 'Feature', properties: { 分类字段: '字段四' }, geometry: { coordinates: [[[166, 40],[166, 36],[174, 36],[174, 40],[166, 40]]], type: 'Polygon' } } ]}2.1. 无描边单色填充
<?xml version="1.0" encoding="UTF-8"?><StyledLayerDescriptor xmlns="http://www.opengis.net/sld" xsi:schemaLocation="http://www.opengis.net/sld http://schemas.opengis.net/sld/1.1.0/StyledLayerDescriptor.xsd" version="1.1.0" xmlns:ogc="http://www.opengis.net/ogc" xmlns:se="http://www.opengis.net/se" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink"> <NamedLayer> <se:Name>面矢量</se:Name> <UserStyle> <se:Name>面矢量</se:Name> <se:FeatureTypeStyle> <se:Rule> <se:Name>无描边单色填充</se:Name> <se:PolygonSymbolizer> <se:Fill> <se:SvgParameter name="fill">#417656</se:SvgParameter> </se:Fill> </se:PolygonSymbolizer> </se:Rule> </se:FeatureTypeStyle> </UserStyle> </NamedLayer></StyledLayerDescriptor>修改上述代码中的 #417656 即可改变配色。
2.2. 描边单色填充
<?xml version="1.0" encoding="UTF-8"?><StyledLayerDescriptor xmlns="http://www.opengis.net/sld" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:se="http://www.opengis.net/se" version="1.1.0" xmlns:ogc="http://www.opengis.net/ogc" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.opengis.net/sld http://schemas.opengis.net/sld/1.1.0/StyledLayerDescriptor.xsd"> <NamedLayer> <se:Name>面矢量</se:Name> <UserStyle> <se:Name>面矢量</se:Name> <se:FeatureTypeStyle> <se:Rule> <se:Name>描边单色填充</se:Name> <se:PolygonSymbolizer> <se:Fill> <se:SvgParameter name="fill">#417656</se:SvgParameter> </se:Fill> <se:Stroke> <se:SvgParameter name="stroke">#000</se:SvgParameter> <se:SvgParameter name="stroke-width">1</se:SvgParameter> <se:SvgParameter name="stroke-linejoin">bevel</se:SvgParameter> </se:Stroke> </se:PolygonSymbolizer> </se:Rule> </se:FeatureTypeStyle> </UserStyle> </NamedLayer></StyledLayerDescriptor>2.3. 根据属性字段分类填充
<?xml version="1.0" encoding="UTF-8"?><StyledLayerDescriptor xmlns="http://www.opengis.net/sld" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:se="http://www.opengis.net/se" version="1.1.0" xmlns:ogc="http://www.opengis.net/ogc" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.opengis.net/sld http://schemas.opengis.net/sld/1.1.0/StyledLayerDescriptor.xsd"> <NamedLayer> <se:Name>面矢量</se:Name> <UserStyle> <se:Name>面矢量</se:Name> <se:FeatureTypeStyle> <se:Rule> <se:Name>字段一</se:Name> <se:Description> <se:Title>字段一</se:Title> </se:Description> <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc"> <ogc:PropertyIsEqualTo> <ogc:PropertyName>分类字段</ogc:PropertyName> <ogc:Literal>字段一</ogc:Literal> </ogc:PropertyIsEqualTo> </ogc:Filter> <se:PolygonSymbolizer> <se:Fill> <se:SvgParameter name="fill">#f7fbff</se:SvgParameter> </se:Fill> </se:PolygonSymbolizer> </se:Rule> <se:Rule> <se:Name>字段二</se:Name> <se:Description> <se:Title>字段二</se:Title> </se:Description> <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc"> <ogc:PropertyIsEqualTo> <ogc:PropertyName>分类字段</ogc:PropertyName> <ogc:Literal>字段二</ogc:Literal> </ogc:PropertyIsEqualTo> </ogc:Filter> <se:PolygonSymbolizer> <se:Fill> <se:SvgParameter name="fill">#c8dcf0</se:SvgParameter> </se:Fill> </se:PolygonSymbolizer> </se:Rule> <se:Rule> <se:Name>字段三</se:Name> <se:Description> <se:Title>字段三</se:Title> </se:Description> <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc"> <ogc:PropertyIsEqualTo> <ogc:PropertyName>分类字段</ogc:PropertyName> <ogc:Literal>字段三</ogc:Literal> </ogc:PropertyIsEqualTo> </ogc:Filter> <se:PolygonSymbolizer> <se:Fill> <se:SvgParameter name="fill">#73b2d8</se:SvgParameter> </se:Fill> </se:PolygonSymbolizer> </se:Rule> <se:Rule> <se:Name>字段四</se:Name> <se:Description> <se:Title>字段四</se:Title> </se:Description> <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc"> <ogc:PropertyIsEqualTo> <ogc:PropertyName>分类字段</ogc:PropertyName> <ogc:Literal>字段四</ogc:Literal> </ogc:PropertyIsEqualTo> </ogc:Filter> <se:PolygonSymbolizer> <se:Fill> <se:SvgParameter name="fill">#2979b9</se:SvgParameter> </se:Fill> </se:PolygonSymbolizer> </se:Rule> </se:FeatureTypeStyle> </UserStyle> </NamedLayer></StyledLayerDescriptor>