2.3. Change the output format of the map#

2.3.1. View examples#

Depending on the format you choose, the image may not be displayed in your browser. If the link doesn’t appear in your browser, right-click on the image above to see what format is specified in MapFile for saving.

Different output results

Different output results#

Mapfile example#

The following is the Mapfile used in this example mfa8.map ):

 1MAP
 2    EXTENT -180 -90 180 90
 3    SIZE 600 300
 4    SHAPEPATH "/gdata"
 5    IMAGECOLOR 0 0 255
 6    FONTSET "../fonts/fonts.list"
 7    SYMBOLSET "../symbols/symbols35.sym"
 8    IMAGETYPE "PNG24"
 9    OUTPUTFORMAT
10        NAME "png8"
11        DRIVER "AGG/PNG8"
12        MIMETYPE "image/png; mode=8bit"
13        IMAGEMODE RGB
14        EXTENSION "png"
15        FORMATOPTION "QUANTIZE_FORCE=on"
16        FORMATOPTION "QUANTIZE_COLORS=256"
17        FORMATOPTION "GAMMA=0.75"
18    END
19    OUTPUTFORMAT
20        NAME "png"
21        DRIVER "AGG/PNG"
22        IMAGEMODE RGB
23    END
24    OUTPUTFORMAT
25        NAME "png24"
26        DRIVER "AGG/PNG"
27        IMAGEMODE RGBA
28        TRANSPARENT TRUE
29    END
30    OUTPUTFORMAT
31        NAME "jpeg"
32        DRIVER "AGG/JPEG"
33        IMAGEMODE RGB
34    END
35    OUTPUTFORMAT
36        NAME "svg"
37        DRIVER "CAIRO/SVG"
38        MIMETYPE "image/svg+xml"
39        IMAGEMODE RGB
40        EXTENSION "svg"
41    END
42    OUTPUTFORMAT
43        NAME "pdf"
44        DRIVER "CAIRO/PDF"
45        MIMETYPE "application/x-pdf"
46        IMAGEMODE RGB
47        EXTENSION "pdf"
48    END
49    OUTPUTFORMAT
50        NAME "cairopng"
51        DRIVER "CAIRO/PNG"
52        MIMETYPE "image/png"
53        IMAGEMODE RGB
54        EXTENSION "png"
55    END
56    OUTPUTFORMAT
57        NAME "GTiff"
58        DRIVER "GDAL/GTiff"
59        MIMETYPE "image/tiff"
60        IMAGEMODE RGB
61        EXTENSION "tif"
62    END
63    LAYER
64        NAME "topo"
65        DATA "land_shallow_topo_8192.tif"
66        STATUS OFF
67        TYPE RASTER
68    END
69    LAYER
70        NAME "wcountry-line"
71        DATA "wcountry.shp"
72        STATUS OFF
73        TYPE LINE
74        CLASS
75            NAME "State Boundary"
76            STYLE
77                SYMBOL "line5"
78                COLOR 255 255 0
79                SIZE 1
80            END
81        END
82    END
83END

Files are changed as follows:#

Open the file: diff_mfa8_mfa6.html

Now our MapFile contains a new object OUTPUTFORMAT . Within the MAP object defined by this object, and when used with the keyword IMAGETYPE.

Depending on the compiled library of MapServer, you can have a variety of output formats to choose from - the GD library provides PNG (8-bit and 24-bit), GIF, JPEG, WBMP , the GDAL library, which sources many of MapServer’s input formats, and can also provide output in PNG, JPEG, TIFF/GeoTIFF, and other raster formats; the pdflib library provides PDF output.

Have a look at your MAPFILE object by changing the keyword IMAGETYPE and experiment with OUTPUTFORMAT . It should be used as IMAGETYPE value (eg: IMAGETYPE png or PNG24 IMAGETYPE ), the name of the output format.

Please consult the OUTPUTFORMAT object reference:

//www.mapserver.org/mapfile/outputformat.html#outputformat