How to produce labels for dynamic points?

Gavin Simpson ucfagls at GOOGLEMAIL.COM
Mon Sep 25 12:44:00 EDT 2006


Dear List,

I'm having some trouble working out how to dynamically add information
to a feature object on a dynamically created shape object that will
show up as the labels for the points I have added to the layer.

The layer is defined in my map file, but it is empty. I process the
layer adding new points from a database like so:

       for ($i = 0; $row = mysql_fetch_array($samplesQuery); $i++)
       {
               $pt = ms_newPointObj();
               $pt->setXY($row["fullEasting"], $row["fullNorthing"]);
               $line = ms_newLineObj();
               $line->add($pt);
               $shape = ms_newShapeObj(MS_SHAPE_POINT);
               $shape->add($line);
               $shape->set("index", $i);
               $shape->set("text", $row["siteCode"]);
               $layer->addFeature($shape);
               $pt->draw($map, $layer, $image, 0, $row["siteCode"]);
       }

What do I need to turn on in my map file or what do I have to do in
PHP to set the text for the labels for these dynamically produced
points? My mapfile is appended below.

Many thanks,

Gav

## mapfile

NAME "fumbledatabase"
SIZE 280 350
STATUS ON
SYMBOLSET "/var/www/fwu/maps/symbols/symbols.sym"
#EXTENT -192554.507218 11697.368164 655524.562500 1218637.375000 #54320.312500
EXTENT -192554.507218 0 655524.562500 1225000
IMAGETYPE png24
UNITS METERS
SHAPEPATH "/var/www/fwu/maps/data"
FONTSET "/var/www/fwu/maps/files/fontset.txt"

OUTPUTFORMAT
 NAME png24
  DRIVER "GD/PNG"
  MIMETYPE "image/png"
  IMAGEMODE RGB
  EXTENSION "png"
END

WEB
       IMAGEPATH "/path/to/tmp/"
       IMAGEURL "/path/totmp/"
END

SCALEBAR
  LABEL
     #TYPE truetype
     #FONT "luxisansb"
     ANTIALIAS true
     SIZE small
     COLOR 0 0 0
  END
       TRANSPARENT ON
       BACKGROUNDCOLOR 255 255 255
       STATUS EMBED
       POSITION UL
       UNITS KILOMETERS
       INTERVALS 3
       OUTLINECOLOR 0 0 0
       SIZE 150 3
       #STYLE 1
END

LAYER
       NAME "uklores"
       TYPE POLYGON
       STATUS ON
       DATA "gb_lores"
       TRANSPARENCY alpha
       CLASS
               STYLE
                       COLOR 255 255 255
                       OUTLINECOLOR 0 0 0
                       SYMBOL 0
                       ANTIALIAS TRUE
               END
       END
END

LAYER
       NAME "ireland"
       TYPE POLYGON
       STATUS ON
       DATA "ireland"
  TRANSPARENCY alpha
       CLASS
               STYLE
                       COLOR 255 255 255
                       OUTLINECOLOR 0 0 0
                       SYMBOL 0
                       ANTIALIAS TRUE
               END
       END



More information about the mapserver-users mailing list