[Mapserver-users] shapeObj label for PHP/MapScript

[Rene Teniere]

Hi All,

I have created a new empty layer based on an existing layer containing
all the proper values set and tested. The layer that the new layer is
based on is ("status", MS_OFF), but I use it to extract shape objects
from it using getShape() and put them into the new empty layer through
draw(). The question is: does the shape object carry over the attributes
("id") from the parent shapefile so that I can create labels for the new
shapeobjects, because they are not showing up. If not, how would I go
about doing this?

In case you couldn't follow what I'm talking about :), here's the
code:

Thanks,

Rene

    <?php
      $map_path = "C:/chameleon11a/websites/wap/";
      $map = ms_newMapObj($map_path."sketch.map");
      $map->setExtent($minX-10, $minY-10, $maxX+10, $maxY+10);
      $image = $map->draw();
      $wap = $map->getLayerByName("WAP");
      $shapes = ms_newLayerObj($map, $wap);
      $shapes->set("name", "Shapes");
      $shapes->set("data", "");
 
      $shapes_class = ms_newClassObj($shapes);

      //Set colours
      $style = ms_newStyleObj($shapes_class);
      $cWhite = $style->color->setRGB(255,255,255);
      $cBlack = $style->color->setRGB(0,0,0);

      $wap->open();
      for($j=0; $j<=$nCOUNT; $j=$j+1)
      {
        $nShape[$j] = $wap->getShape(-1, $nIndex[$j]);
        $nShape[$j]->draw($map, $shapes, $image);
      }
      $wap->close();

      $scalebar = $map->drawScaleBar();
      $image_url = $image->saveWebImage();
      $scalebar_url = $scalebar->saveWebImage();
    ?>

  LAYER
    NAME "WAP"
    GROUP "Treatments"
    STATUS OFF
    TYPE POLYGON
    MAXSCALE 500000
    DATA "D:/gis_data/wap_2002/all"
    LABELITEM "id"
    CLASS
      EXPRESSION ([TRTAREA] >0)
      LABEL
        TYPE BITMAP
        SIZE MEDIUM
        MAXSIZE 100000
        POSITION CC
        COLOR 0 0 0
      END
      STYLE
        SYMBOL 0
        COLOR 255 255 255
        OUTLINECOLOR 0 0 0
        SIZE 1
        MINSIZE 1
        MAXSIZE 100
      END
    END
  END

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