shp2img - create a map image from a mapfile

shp2img creates a map image from a mapfile.  Output is either PNG or GIF depending on what version of the
       GD  library  is  used.  This is a useful utility to test your mapfile. You can simply provide the path to
       your mapfile and the name of an output image, and an image should be returned. If an image cannot be cre‐
       ated an error will be displayed at the command line that should refer to a line number in the mapfile.

Example#1

       shp2img -m vector_blank.map -o test.png

       Result:
              A file named 'test.png' is created, that you can drag into your browser to view.

       Example#2

       shp2img -m gmap75.map -o test2.png -map_debug 3

       Result:
              A file named 'test2.png' is created, and layer draw speeds are returned such as:

       msDrawRasterLayerLow(bathymetry): entering
       msDrawMap(): Layer 0 (bathymetry), 0.601s
       msDrawMap(): Layer 3 (drain_fn), 0.200s
       msDrawMap(): Layer 4 (drainage), 0.300s
       msDrawMap(): Layer 5 (prov_bound), 0.191s
       msDrawMap(): Layer 6 (fedlimit), 0.030s
       msDrawMap(): Layer 9 (popplace), 0.080s
       msDrawMap(): Drawing Label Cache, 0.300s
       msDrawMap() total time: 1.702s
       msSaveImage() total time: 0.040s

       Example#3

       shp2img -m gmap75.map -o test3.png -all_debug 3

       Result:
              A file named 'test3.png' is created, layer draw speeds are returned, and some warnings that  index
              qix files are not found, such as:

       msLoadMap(): 0.671s
       msDrawRasterLayerLow(bathymetry): entering.
       msDrawGDAL(): src=72,417,3077,2308, dst=0,0,400,300
       msDrawGDAL(): red,green,blue,alpha bands = 1,0,0,0
       msDrawMap(): Layer 0 (bathymetry), 0.090s
       msSearchDiskTree(): Search returned no results. Unable to open spatial index
       for D:\ms4w\apps\gmap\htdocs/.\../data/drain_fn.qix. In most cases you can
       safely ignore this message, otherwise check file names and permissions.
       msDrawMap(): Layer 3 (drain_fn), 0.010s
       msDrawMap(): Layer 4 (drainage), 0.050s
       msSearchDiskTree(): Search returned no results. Unable to open spatial index
       for D:\ms4w\apps\gmap\htdocs/.\../data/province.qix. In most cases you can
       safely ignore this message, otherwise check file names and permissions.
       msDrawMap(): Layer 5 (prov_bound), 0.030s
       msSearchDiskTree(): Search returned no results. Unable to open spatial index
       for D:\ms4w\apps\gmap\htdocs/.\../data/fedlimit.qix. In most cases you can
       safely ignore this message, otherwise check file names and permissions.
       msDrawMap(): Layer 6 (fedlimit), 0.010s
       msDrawMap(): Layer 9 (popplace), 0.010s
       msDrawMap(): Drawing Label Cache, 0.201s
       msDrawMap() total time: 0.401s
       msSaveImage() total time: 0.010s
       shp2img total time: 1.082s

                                                07 February 2022                                      shp2img(1)

       shp2img - create a map image from a mapfile

-mmapfile
              Map file to operate on - required

       -iformat
              Override the IMAGETYPE value to pick output format

       -oimage
              Output filename (STDOUT if not provided)

       -eminxminymaxxmaxy
              Extents to render

       -ssizexsizey
              Output image size

       -llayers
              Layers to enable - make sure they are quoted and space separated if more than one listed

       -all_debugn
              Set debug level for map and all layers

       -map_debugn
              Set map debug level

       -layer_debuglayernamen
              Set layer debug level

       -cn   Draw map n number of times

       -pn   Pause for n seconds after reading the map

       -dlayernamedatavalue
              Change DATA value for layer

shp2img-mmapfile [-oimage] [-eminxminymaxxmaxy] [-ssizexsizey] [-l " layer1 [layer2...]"] [-iformat] [-all_debugn] [-map_debugn] [-layer_debuglayernamen] [-pn] [-cn] [-dlayernamedatavalue]