[mapserver-users] Can anyone help me please???/

[Ruslan Nuryadin]

Try these:

1. On your map file:

        IMAGEURL "/ms_tmp/"

2. On your PHP code, add:

<FORM METHOD=POST NAME="anything">
  <input type=image name=mapa src=<?php echo $image_url; ?>>
</FORM>

Regards,
Ruslan


On Thu, Aug 28, 2008 at 6:01 PM, ramya srinivasan <hellomps at gmail.com> wrote:
> HI,
>  I have to display the user clicked point on the map. But i don get the
> point in the map.. Can any one please correct my code..
> <?php
> dl('php_mapscript.dll');
>  // Default values and configuration
> $map_file="./usa12.map";
> $map = ms_newMapObj($map_file);
> if ( isset($HTTP_POST_VARS["mapa_x"]) && isset($HTTP_POST_VARS["mapa_y"]))
>  {
>       $my_point = ms_newpointObj();
>       $my_point->setXY($HTTP_POST_VARS["mapa_x"],$HTTP_POST_VARS["mapa_y"]);
>       $nGeoX = Pix2Geo($my_point->x, 0,$map->width , $map->extext->minx,
> $map->extent->maxx, 0);
>       $nGeoY = Pix2Geo($my_point->y, 0, $map->height, $map->extent->miny,
> $map->extent->maxy, 1);
>       $point=ms_newpointobj();
>       $point->setXY($nGeoX,$nGeoY);
> $layer=$map->getLayerByName("US state boundaries");
> if (@$layer->queryByPoint($point,MS_SINGLE ,0) == MS_SUCCESS)
> {
> $image_from_query=$map->drawQuery();
> $image_from_query_url=$image_from_query->saveWebImage();
> }
> }
> function Pix2Geo($nPixPos, $dfPixMin, $dfPixMax, $dfGeoMin, $dfGeoMax,
> $nInversePix)
> {
>
>     $dfWidthGeo = $dfGeoMax - $dfGeoMin;
>     $dfWidthPix = $dfPixMax - $dfPixMin;
>
>
>     $dfPixToGeo = $dfWidthGeo / $dfWidthPix;
>
>     if (!$nInversePix)
>         $dfDeltaPix = $nPixPos - $dfPixMin;
>     else
>         $dfDeltaPix = $dfPixMax - $nPixPos;
>
>     $dfDeltaGeo = $dfDeltaPix * $dfPixToGeo;
>
>
>     $dfPosGeo = $dfGeoMin + $dfDeltaGeo;
>
>
>
>     return ($dfPosGeo);
>
> }
>  $image=$map->draw();
>  $image_url=$image->saveWebImage();
> ?>
> map file
> MAP
>     NAME USA1
>     STATUS ON
>     SIZE 800 500
>     IMAGETYPE PNG
>     IMAGECOLOR 200 200 200
>     SHAPEPATH "C:\ms4w\Apache\data"
>     EXTENT -8000000 300000 5000000 1500000
>     UNITS METERS
>     PROJECTION
>         "proj=lcc" "lat_1=32" "lat_2=44" "lat_0=38" "lon_0=-100" "x_0=0"
> "y_0=0" "ellps=GRS80" "datum=NAD83"
>     END
>     WEB
>         IMAGEPATH "C:\ms4w\tmp\ms_tmp"
>         IMAGEURL "C:\ms4w\tmp\ms_tmp"
>
>     END
>
>     LAYER
>         NAME "US state boundaries"
>         TYPE POLYGON
>         STATUS ON
>         DATA "statesp020"
>         PROJECTION
>             "proj=latlong"
>             "ellps=GRS80"
>             "datum=NAD83"
>         END
>
>         CLASS
>             NAME "US states"
>             OUTLINECOLOR 175 175 175
>             COLOR 150 150 150
>             SYMBOL 0
>                       TEMPLATE "hello.html"
>             END
>     END
>
> END
>
>
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