在 Mapfile 中使用自定义样式
矢量数据主要可以分为点、线、面三种类型。 数据类型结构的简单，则赋予了表达的多样性。在MapServer中，可以对点、线、面进行颜色、大小（粗细）、透明等多种维度的样式设置。
点状
使用的 Mapfile 为：
01 MAP 02 IMAGETYPE "PNG" 03 EXTENT -180 -90 180 90 04 SIZE 600 300 05 SHAPEPATH "/gdata" 06 IMAGECOLOR 255 255 255 07 SYMBOL 08 NAME "circle" 09 TYPE ELLIPSE 10 FILLED TRUE 11 POINTS 12 10 10 13 END 14 END 15 LAYER 16 NAME "world-country" 17 DATA "wcountry.shp" 18 STATUS OFF 19 TYPE POLYGON 20 CLASS 21 NAME "The Upper Great Lakes States" 22 STYLE 23 COLOR 232 232 232 24 OUTLINECOLOR 32 32 32 25 END 26 END 27 END 28 LAYER 29 NAME "world-city" 30 DATA "world/cities.shp" 31 STATUS OFF 32 TYPE POINT 33 CLASS 34 NAME "cities" 35 SYMBOL "circle" 36 SIZE 6 37 COLOR 0 0 0 38 END 39 END 40 END
线状填充示例
使用的 Mapfile 为：
01 MAP 02 IMAGETYPE "PNG" 03 EXTENT -180 -90 180 90 04 SIZE 600 300 05 SHAPEPATH "/gdata" 06 IMAGECOLOR 255 255 255 07 SYMBOL 08 NAME "hatch-test" 09 TYPE HATCH 10 END 11 LAYER 12 NAME "world-country" 13 DATA "wcountry.shp" 14 STATUS OFF 15 TYPE POLYGON 16 CLASS 17 NAME "The Upper Great Lakes States" 18 STYLE 19 SYMBOL "hatch-test" 20 COLOR 255 0 0 21 ANGLE 45 22 SIZE 10 23 WIDTH 3 24 END 25 END 26 END 27 END
圆状填充示例
使用的 Mapfile 为：
01 MAP 02 IMAGETYPE "PNG" 03 EXTENT -180 -90 180 90 04 SIZE 600 300 05 SHAPEPATH "/gdata" 06 IMAGECOLOR 255 255 255 07 SYMBOL 08 NAME "circle" 09 TYPE ELLIPSE 10 FILLED TRUE 11 POINTS 12 1 1 13 END 14 END 15 LAYER 16 NAME "world-country" 17 DATA "wcountry.shp" 18 STATUS OFF 19 TYPE POLYGON 20 CLASS 21 NAME "The Upper Great Lakes States" 22 STYLE 23 SYMBOL "circle" 24 COLOR 255 0 0 25 ANGLE 45 26 SIZE 10 27 WIDTH 3 28 END 29 END 30 END 31 END
河流样式
使用的 Mapfile 为：
01 MAP 02 IMAGETYPE "PNG" 03 EXTENT -180 -90 180 90 04 SIZE 600 300 05 SHAPEPATH "/gdata" 06 IMAGECOLOR 255 255 255 07 FONTSET "../fonts/fonts.list" 08 WEB 09 METADATA 10 "wms_title" "WMS Demo Server" 11 "wms_onlineresource" "//webgis.cn/cgi-bin/mapserv?map=/owg/mfb1.map&" 12 "ows_onlineresource" "//webgis.cn/cgi-bin/mapserv?map=/owg/mfb1.map&" 13 "wms_srs" "EPSG:4269 EPSG:4326" 14 "wms_enable_request" "* !GetFeatureInfo" 15 END 16 END 17 PROJECTION 18 "init=epsg:4326" 19 END 20 LAYER 21 NAME "states_poly" 22 DATA "wcountry.shp" 23 STATUS OFF 24 TYPE POLYGON 25 LABELITEM "NAME" 26 CLASS 27 NAME "States" 28 STYLE 29 COLOR 232 232 232 30 END 31 END 32 END 33 LAYER 34 NAME "states_line" 35 DATA "wcountry.shp" 36 STATUS OFF 37 TYPE LINE 38 CLASS 39 NAME "State Boundary" 40 STYLE 41 COLOR 132 132 32 42 END 43 END 44 END 45 LAYER 46 NAME "wriver" 47 DATA "wriver.shp" 48 STATUS OFF 49 TYPE LINE 50 CLASS 51 NAME "World River" 52 STYLE 53 COLOR 0 0 255 54 END 55 END 56 END 57 LAYER 58 NAME "wroads" 59 DATA "wroads.shp" 60 STATUS OFF 61 TYPE LINE 62 CLASS 63 NAME "World Road" 64 STYLE 65 COLOR 100 100 100 66 WIDTH 1 67 LINECAP BUTT 68 PATTERN 69 10 5 70 5 10 71 END 72 END 73 END 74 END 75 END
可以进一步使用 GepMap 来获取放大后的效果 ：