制图
Mapnik中使用XML定义不同的线状要素端点形状
01 <Map background-color="#efefef" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 02 <Style name="My Style"> 03 <Rule> 04 <LineSymbolizer stroke="rgb(50%,50%,50%)" stroke-width="20" stroke-linecap="round"/> 05 <Filter>[id] = 1</Filter> 06 </Rule> 07 </Style> 08 <Style name="My Style2"> 09 <Rule> 10 <LineSymbolizer stroke="rgb(50%,50%,50%)" stroke-width="20" stroke-linecap="butt"/> 11 <Filter>[id] = 2</Filter> 12 </Rule> 13 </Style> 14 15 <Style name="My Style3"> 16 <Rule> 17 <LineSymbolizer stroke="rgb(50%,50%,50%)" stroke-width="20" stroke-linecap="square"/> 18 <Filter>[id] = 3</Filter> 19 </Rule> 20 </Style> 21 <Style name="My Style4"> 22 <Rule> 23 <LineSymbolizer stroke="#000000" stroke-width="2" stroke-linejoin="miter"/> 24 </Rule> 25 </Style> 26 <Layer name="world" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 27 <StyleName>My Style</StyleName> 28 <Datasource> 29 <Parameter name="type">shape</Parameter> 30 <Parameter name="file">/gdata/fig_data/fig_data_line3.shp</Parameter> 31 </Datasource> 32 </Layer> 33 <Layer name="world" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 34 <StyleName>My Style2</StyleName> 35 <Datasource> 36 <Parameter name="type">shape</Parameter> 37 <Parameter name="file">/gdata/fig_data/fig_data_line3.shp</Parameter> 38 </Datasource> 39 </Layer> 40 <Layer name="world" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 41 <StyleName>My Style3</StyleName> 42 <Datasource> 43 <Parameter name="type">shape</Parameter> 44 <Parameter name="file">/gdata/fig_data/fig_data_line3.shp</Parameter> 45 </Datasource> 46 </Layer> 47 <Layer name="world" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 48 <StyleName>My Style4</StyleName> 49 <Datasource> 50 <Parameter name="type">shape</Parameter> 51 <Parameter name="file">/gdata/fig_data/fig_data_line3.shp</Parameter> 52 </Datasource> 53 </Layer> 54 </Map>
Mapnik中使用XML定义不同的线状要素连接样式
01 <Map background-color="#efefef" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 02 <Style name="My Style"> 03 <Rule> 04 <LineSymbolizer stroke="rgb(50%,50%,50%)" stroke-width="20" stroke-linejoin="miter"/> 05 <Filter>[id] = 1</Filter> 06 </Rule> 07 </Style> 08 <Style name="My Style2"> 09 <Rule> 10 <LineSymbolizer stroke="rgb(50%,50%,50%)" stroke-width="20" stroke-linejoin="round"/> 11 <Filter>[id] = 2</Filter> 12 </Rule> 13 </Style> 14 <Style name="My Style3"> 15 <Rule> 16 <LineSymbolizer stroke="rgb(50%,50%,50%)" stroke-width="20" stroke-linejoin="bevel"/> 17 <Filter>[id] = 3</Filter> 18 </Rule> 19 </Style> 20 <Style name="My Style4"> 21 <Rule> 22 <LineSymbolizer stroke="#000000" stroke-width="2" stroke-linejoin="miter"/> 23 </Rule> 24 </Style> 25 <Layer name="world" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 26 <StyleName>My Style</StyleName> 27 <Datasource> 28 <Parameter name="type">shape</Parameter> 29 <Parameter name="file">/gdata/fig_data/fig_data_line3.shp</Parameter> 30 </Datasource> 31 </Layer> 32 <Layer name="world" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 33 <StyleName>My Style2</StyleName> 34 <Datasource> 35 <Parameter name="type">shape</Parameter> 36 <Parameter name="file">/gdata/fig_data/fig_data_line3.shp</Parameter> 37 </Datasource> 38 </Layer> 39 <Layer name="world" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 40 <StyleName>My Style3</StyleName> 41 <Datasource> 42 <Parameter name="type">shape</Parameter> 43 <Parameter name="file">/gdata/fig_data/fig_data_line3.shp</Parameter> 44 </Datasource> 45 </Layer> 46 <Layer name="world" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 47 <StyleName>My Style4</StyleName> 48 <Datasource> 49 <Parameter name="type">shape</Parameter> 50 <Parameter name="file">/gdata/fig_data/fig_data_line3.shp</Parameter> 51 </Datasource> 52 </Layer> 53 </Map>
Mapnik中使用XML定义不同的线状要素连接样式
01 <Map background-color="#efefef" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 02 <Style name="My Style"> 03 <Rule> 04 <PolygonSymbolizer fill="#ffffff"/> 05 <LineSymbolizer stroke="rgb(50%,50%,50%)" stroke-width="1" stroke-dasharray="8,20"/> 06 <PolygonPatternSymbolizer width="6" height="6" type="png" file="/gdata/sym_line45.png"/> 07 </Rule> 08 </Style> 09 <Layer name="world" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"> 10 <StyleName>My Style</StyleName> 11 <Datasource> 12 <Parameter name="type">shape</Parameter> 13 <Parameter name="file">/gdata/fig_data/fig_data_poly.shp</Parameter> 14 </Datasource> 15 </Layer> 16 </Map>
