[Mapserver-users] dynamic labeling -- help needed

fx gamoy fx.gamoy at mapxplore.com
Thu Nov 6 04:07:38 EST 2003


C'est un message de format MIME en plusieurs parties.

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hello Murat
i have used mif/mid file instead of shpefileobj
i have written a php function which write new mif/mid file when i have =
to refresh car position.
fx gamoy
http://www.mapxplore.com/
  ----- Original Message -----=20
  From: Murat Isik=20
  To: mapserver-users at lists.gis.umn.edu=20
  Sent: Thursday, November 06, 2003 7:42 AM
  Subject: [Mapserver-users] dynamic labeling -- help needed


  Hello,
  I am working on a mapscript project, it is a car tracking project.
  Coordinates data comes to mysql, and my mapscript reads the data and =
prints
  points on the map accordingly. However I am given a new task which is =
truely
  above me...
  I am handed a new layer for my project, a layer about streets. I am =
supposed
  to add this layer to the map (which is easy) and have the php code
  dynamicaly query this layer (which is "????" for me) I have used some =
free
  map tools to "look
  into" the layer. The database coloumn has two coloumns: an ID and an =
ADI
  coloumn. ADI means "its name" in Turkish. Every time this php code is
  called, it should not only print the streets on the map but next to =
each
  street, it
  should also write its name. Even if it is zoomed, it should still =
maintain
  the names of the streets within the picture on the page. I have no =
idea
  about how to do this, it is way above me...

  One problem might be that while ID coloumn is all numbers, ADI coloumn =
has a
  lot of Turkish characters (8859-9 named code set I believe, UTF-9 =
might be
  another name too.) I dont know if php/mapscript supports this one. =
This is
  not a big problem anyway. If I can get the ID coloumn to be printed, =
then I
  can use ArcView or some other windows tool to open up the .dbf file =
and
  rewrite the names with international characters and then change it to =
ID to
  ADI.

  But I dont have any ideas about how to get anything read out of the =
static
  layer and properly printed on the page. I have searched the net and =
mail
  list archieve but didnot understand much. Please help me...:)

  Have a nice day:)

  Murat Isik

  current php code:

  <HEAD>
  <TITLE>Displaying a Point</TITLE>
  </HEAD>
  <CENTER>
  <FORM METHOD=3DPOST ACTION=3D<?php echo $PHP_SELF?>>
  <H1>DYNAMIC POINT</H1>
  <P>
  <?php
  dl("php_mapscript.so");

  mysql_connect("localhost","root","sqlpass") or
          die ("Could not connect to database");

  mysql_select_db("gpstrack") or
          die("Could not select database");

  $val_zsize=3D3;
  $check_pan=3D"CHECKED";

  $shpFname =3D "target1";
  $shpFile =3D ms_newShapeFileObj($shpFname, MS_SHP_POINT);

  $shpFname1 =3D "target2";
  $shpFile1 =3D ms_newShapeFileObj($shpFname1, MS_SHP_POINT);

  $pt =3D ms_newPointObj();

  $i =3D 0;

  $result =3D mysql_query("select * from track2") or
          die (mysql_error());


  $x[0]=3D0;
  $y[0]=3D0;

  while ($row =3D mysql_fetch_array($result))
  {
  ++$i;
  $test_x[$i] =3D $row["lodegrees"]+$row["lominutes"]/60;
  $test_y[$i] =3D $row["ldegrees"]+$row["lminutes"]/60;


  if($test_x[$i]=3D=3D$x[$i-1] || $test_y[$i]=3D=3D$y[$i-1])
  {
  --$i;
  }else
  {

  $x[$i] =3D $test_x[$i];
  $y[$i] =3D $test_y[$i];

  }

  }
  mysql_free_result($result);


  for($k=3D1;$k<=3D$i-1;++$k)
  {
  $pt->setXY($x[$k], $y[$k]);
  $shpFile->addPoint($pt);
  };

  $pt->setXY($x[$i], $y[$i]);
  $shpFile1->addPoint($pt);


  $shpFile->free();
  $shpFile1->free();

  $def =3Darray(array("UNIQID", "C", 13),array("NOM", "C", 128));
  $dbfFile =3D dbase_create($shpFname.".dbf", $def);
  dbase_add_record($dbfFile, array("1","TEST"));

  $def =3Darray(array("UNIQID", "C", 13),array("NOM", "C", 128));
  $dbfFile =3D dbase_create($shpFname1.".dbf", $def);
  dbase_add_record($dbfFile, array("1","TEST"));

  $myMap =3D ms_newMapObj("demo_try.map");

  #$myLayer =3D $myMap->getLayerByName("target1");
  #$myLayer->set("data", $shpFname);
  #$myLayer->set('status', MS_ON);


  if ( isset($HTTP_POST_VARS["mapa_x"]) && =
isset($HTTP_POST_VARS["mapa_y"])
        && !isset($HTTP_POST_VARS["full"]) ) {

   //     $extent_to_set =3D explode(" ",$HTTP_POST_VARS["extent"]);


  $extent_to_set[0] =3D 29.057;
  $extent_to_set[1] =3D 40.954;
  $extent_to_set[2] =3D 29.143;
  $extent_to_set[3] =3D 40.999;


    $myMap->setextent($extent_to_set[0],$extent_to_set[1],
                       $extent_to_set[2],$extent_to_set[3]);

        $my_point =3D ms_newpointObj();
        =
$my_point->setXY($HTTP_POST_VARS["mapa_x"],$HTTP_POST_VARS["mapa_y"]);

        $my_extent =3D ms_newrectObj();

        $my_extent->setextent($extent_to_set[0],$extent_to_set[1],
                                $extent_to_set[2],$extent_to_set[3]);

        $zoom_factor =3D =
$HTTP_POST_VARS["zoom"]*$HTTP_POST_VARS["zsize"];
        if ($zoom_factor =3D=3D 0) {
                $zoom_factor =3D 1;
                $check_pan =3D "CHECKED";
                $check_zout =3D "";
                $check_zin =3D "";
        } else if ($zoom_factor < 0) {
                $check_pan =3D "";
                $check_zout =3D "CHECKED";
                $check_zin =3D "";
        } else {
                $check_pan =3D "";
                $check_zout =3D "";
                $check_zin =3D "CHECKED";
        }

        $val_zsize =3D abs($zoom_factor);

        =
$myMap->zoompoint($zoom_factor,$my_point,$myMap->width,$myMap->height,
                        $my_extent);

  }
  $img =3D $myMap->draw();
  $image_url =3D $img->saveWebImage(GIF,1,1,0);

  ?>
  <BODY>
  <center>
  <table border=3D0 cellspacing=3D0 cellpadding=3D4 bgcolor=3D"#FFFFFF">
  <tr>
  <td valign=3D"top" align=3Dcenter>
    <table cellpadding=3D"0" cellspacing=3D"5" border=3D"5">
      <tr><td colspan=3D"2"><INPUT NAME=3D"mapa" TYPE=3D"image" =
SRC=3D"<?php echo
  $image_url; ?>" width=3D600 height=3D600 border=3D0></td></tr>
      <tr>
   <TR>
        <TD>
                Pan
        </TD>
        <TD>
                <INPUT TYPE=3DRADIO NAME=3D"zoom" VALUE=3D0 <?php echo =
$check_pan?>>
        </TD>
   </TR>
   <TR>
        <TD>
                Zoom In
        </TD>
        <TD>
                <INPUT TYPE=3DRADIO NAME=3D"zoom" VALUE=3D1 <?php echo =
$check_zin?>>
        </TD>
   </TR>
   <TR>
        <TD>
                Zoom Out
        </TD>
        <TD>
                <INPUT TYPE=3DRADIO NAME=3D"zoom" VALUE=3D-1 <?php echo
  $check_zout?>>
        </TD>
   </TR>
   <TR>
        <TD>
                Zoom Size
        </TD>
        <TD>
                <INPUT TYPE=3DTEXT NAME=3D"zsize" VALUE=3D"<?php echo =
$val_zsize?>"
                SIZE=3D2>
        </TD>
   </TR>
   <TR>
        <TD>
                Full Extent
        </TD>
        <TD>
                <INPUT TYPE=3DSUBMIT NAME=3D"full" VALUE=3D"Go"
                SIZE=3D2>
        </TD>
  </TABLE>
  <INPUT TYPE=3DHIDDEN NAME=3D"extent" VALUE=3D"<?php echo =
$extent_to_html?>">
  </FORM>
  </CENTER>

  </BODY>
  </HTML>


  current map file:

  #
  # Start of map file
  #
  NAME ERENKOY
  STATUS ON
  SIZE 600 600
  EXTENT 29.057 40.954 29.143 40.999
  UNITS DD
  SHAPEPATH "/var/www/html/mapserver/itasca/"
  IMAGECOLOR 255 255 255

  #OUTPUTFORMAT
  #  NAME PNG
  #  DRIVER "GD/PNG"
  #  MIMETYPE "image/png"
  #  IMAGEMODE PC256
  #  EXTENSION "png"
  #END

  IMAGETYPE GIF


  WEB
    MINSCALE 1000
    MAXSCALE 1550000
    IMAGEPATH "/var/www/html/mapserver/tmp3/"
    IMAGEURL "/mapserver/tmp3/"
   END


  SYMBOL
    NAME 'circle'
    TYPE ELLIPSE
    POINTS 1 1 END
    FILLED TRUE
  END


  LAYER
    NAME 'ERENKOY_ORNEKILCE_PG_region'
    TYPE polygon
    STATUS DEFAULT
    DATA ERENKOY_ORNEKILCE_PG_region

    CLASSITEM 'ID'
    CLASS
      EXPRESSION '3'
      OUTLINECOLOR 128 128 128
      COLOR 225 225 185
    END
    CLASS
      EXPRESSION /./
      OUTLINECOLOR 128 128 128
      COLOR 255 255 255
    END
  END

  LAYER
   NAME ERENKOY_ORNEKMAHALLE_PG_region
    GROUP cities
    TYPE polygon
   DATA ERENKOY_ORNEKMAHALLE_PG_region
    STATUS ON
   CLASSITEM 'ID'
   CLASS
          EXPRESSION /./
  COLOR 255 225 185
          OUTLINECOLOR 0 0 0

    END


  END

  LAYER
    NAME 'target2'
    TYPE point
    DATA target2
    STATUS ON
     CLASS
      SYMBOL 'circle'
      COLOR 255 255 0
      SIZE 20
       LABEL
        COLOR 0 0 0
       END
     END


  END

  LAYER
    NAME 'target1'
    TYPE point
    DATA target1
    STATUS ON
     CLASS
      SYMBOL 'circle'
      COLOR 255 0 0
      SIZE 4
       LABEL
        COLOR 0 0 0
       END
     END


  END

  END # end of map file




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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 5.50.4134.600" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>hello Murat</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>i have used mif/mid file instead of=20
shpefileobj</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>i have written a php function which =
write new=20
mif/mid file when i have to refresh car position.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>fx gamoy</FONT></DIV>
<DIV><FONT face=3DArial size=3D2><A=20
href=3D"http://www.mapxplore.com/">http://www.mapxplore.com/</A></FONT></=
DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Dmuratisik at megatek.com.tr =
href=3D"mailto:muratisik at megatek.com.tr">Murat=20
  Isik</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  title=3Dmapserver-users at lists.gis.umn.edu=20
  =
href=3D"mailto:mapserver-users at lists.gis.umn.edu">mapserver-users at lists.g=
is.umn.edu</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Thursday, November 06, =
2003 7:42=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Mapserver-users] =
dynamic=20
  labeling -- help needed</DIV>
  <DIV><BR></DIV>
  <DIV><FONT face=3DArial size=3D2>Hello,<BR>I am working on a mapscript =
project, it=20
  is a car tracking project.<BR>Coordinates data comes to mysql, and my=20
  mapscript reads the data and prints<BR>points on the map accordingly. =
However=20
  I am given a new task which is truely<BR>above me...<BR>I am handed a =
new=20
  layer for my project, a layer about streets. I am supposed<BR>to add =
this=20
  layer to the map (which is easy) and have the php code<BR>dynamicaly =
query=20
  this layer (which is "????" for me) I have used some free<BR>map tools =
to=20
  "look<BR>into" the layer. The database coloumn has two coloumns: an ID =
and an=20
  ADI<BR>coloumn. ADI means "its name" in Turkish. Every time this php =
code=20
  is<BR>called, it should not only print the streets on the map but next =
to=20
  each<BR>street, it<BR>should also write its name. Even if it is =
zoomed, it=20
  should still maintain<BR>the names of the streets within the picture =
on the=20
  page. I have no idea<BR>about how to do this, it is way above =
me...<BR><BR>One=20
  problem might be that while ID coloumn is all numbers, ADI coloumn has =

  a<BR>lot of Turkish characters (8859-9 named code set I believe, UTF-9 =
might=20
  be<BR>another name too.) I dont know if php/mapscript supports this =
one. This=20
  is<BR>not a big problem anyway. If I can get the ID coloumn to be =
printed,=20
  then I<BR>can use ArcView or some other windows tool to open up the =
.dbf file=20
  and<BR>rewrite the names with international characters and then change =
it to=20
  ID to<BR>ADI.<BR><BR>But I dont have any ideas about how to get =
anything read=20
  out of the static<BR>layer and properly printed on the page. I have =
searched=20
  the net and mail<BR>list archieve but didnot understand much. Please =
help=20
  me...:)<BR><BR>Have a nice day:)<BR><BR>Murat Isik</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>current php code:</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial =
size=3D2>&lt;HEAD&gt;<BR>&lt;TITLE&gt;Displaying a=20
  Point&lt;/TITLE&gt;<BR>&lt;/HEAD&gt;<BR>&lt;CENTER&gt;<BR>&lt;FORM =
METHOD=3DPOST=20
  ACTION=3D&lt;?php echo $PHP_SELF?&gt;&gt;<BR>&lt;H1&gt;DYNAMIC=20
  =
POINT&lt;/H1&gt;<BR>&lt;P&gt;<BR>&lt;?php<BR>dl("php_mapscript.so");<BR><=
BR>mysql_connect("localhost","root","sqlpass")=20
  or<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; die ("Could not =
connect to=20
  database");<BR><BR>mysql_select_db("gpstrack")=20
  or<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; die("Could not select =

  =
database");<BR><BR>$val_zsize=3D3;<BR>$check_pan=3D"CHECKED";<BR><BR>$shp=
Fname =3D=20
  "target1";<BR>$shpFile =3D ms_newShapeFileObj($shpFname,=20
  MS_SHP_POINT);<BR><BR>$shpFname1 =3D "target2";<BR>$shpFile1 =3D=20
  ms_newShapeFileObj($shpFname1, MS_SHP_POINT);<BR><BR>$pt =3D=20
  ms_newPointObj();<BR><BR>$i =3D 0;<BR><BR>$result =3D =
mysql_query("select * from=20
  track2") or<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; die=20
  (mysql_error());<BR><BR><BR>$x[0]=3D0;<BR>$y[0]=3D0;<BR><BR>while =
($row =3D=20
  mysql_fetch_array($result))<BR>{<BR>++$i;<BR>$test_x[$i] =3D=20
  $row["lodegrees"]+$row["lominutes"]/60;<BR>$test_y[$i] =3D=20
  =
$row["ldegrees"]+$row["lminutes"]/60;<BR><BR><BR>if($test_x[$i]=3D=3D$x[$=
i-1] ||=20
  $test_y[$i]=3D=3D$y[$i-1])<BR>{<BR>--$i;<BR>}else<BR>{<BR><BR>$x[$i] =
=3D=20
  $test_x[$i];<BR>$y[$i] =3D=20
  =
$test_y[$i];<BR><BR>}<BR><BR>}<BR>mysql_free_result($result);<BR><BR><BR>=
for($k=3D1;$k&lt;=3D$i-1;++$k)<BR>{<BR>$pt-&gt;setXY($x[$k],=20
  =
$y[$k]);<BR>$shpFile-&gt;addPoint($pt);<BR>};<BR><BR>$pt-&gt;setXY($x[$i]=
,=20
  =
$y[$i]);<BR>$shpFile1-&gt;addPoint($pt);<BR><BR><BR>$shpFile-&gt;free();<=
BR>$shpFile1-&gt;free();<BR><BR>$def=20
  =3Darray(array("UNIQID", "C", 13),array("NOM", "C", 128));<BR>$dbfFile =
=3D=20
  dbase_create($shpFname.".dbf", $def);<BR>dbase_add_record($dbfFile,=20
  array("1","TEST"));<BR><BR>$def =3Darray(array("UNIQID", "C", =
13),array("NOM",=20
  "C", 128));<BR>$dbfFile =3D dbase_create($shpFname1.".dbf",=20
  $def);<BR>dbase_add_record($dbfFile, array("1","TEST"));<BR><BR>$myMap =
=3D=20
  ms_newMapObj("demo_try.map");<BR><BR>#$myLayer =3D=20
  $myMap-&gt;getLayerByName("target1");<BR>#$myLayer-&gt;set("data",=20
  $shpFname);<BR>#$myLayer-&gt;set('status', MS_ON);<BR><BR><BR>if (=20
  isset($HTTP_POST_VARS["mapa_x"]) &amp;&amp;=20
  isset($HTTP_POST_VARS["mapa_y"])<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&amp;&amp;=20
  !isset($HTTP_POST_VARS["full"]) ) =
{<BR><BR>&nbsp;//&nbsp;&nbsp;&nbsp;&nbsp;=20
  $extent_to_set =3D explode("=20
  ",$HTTP_POST_VARS["extent"]);<BR><BR><BR>$extent_to_set[0] =3D=20
  29.057;<BR>$extent_to_set[1] =3D 40.954;<BR>$extent_to_set[2] =3D=20
  29.143;<BR>$extent_to_set[3] =3D 40.999;<BR><BR><BR>&nbsp;=20
  =
$myMap-&gt;setextent($extent_to_set[0],$extent_to_set[1],<BR>&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
  =
$extent_to_set[2],$extent_to_set[3]);<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;=20
  $my_point =3D ms_newpointObj();<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
  =
$my_point-&gt;setXY($HTTP_POST_VARS["mapa_x"],$HTTP_POST_VARS["mapa_y"]);=
<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
  $my_extent =3D ms_newrectObj();<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
  =
$my_extent-&gt;setextent($extent_to_set[0],$extent_to_set[1],<BR>&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;=20
  =
$extent_to_set[2],$extent_to_set[3]);<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;=20
  $zoom_factor =3D=20
  =
$HTTP_POST_VARS["zoom"]*$HTTP_POST_VARS["zsize"];<BR>&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;=20
  if ($zoom_factor =3D=3D 0)=20
  =
{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;=20
  $zoom_factor =3D=20
  =
1;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;=20
  $check_pan =3D=20
  =
"CHECKED";<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
  $check_zout =3D=20
  =
"";<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;=20
  $check_zin =3D "";<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } else if =
($zoom_factor=20
  &lt; 0)=20
  =
{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;=20
  $check_pan =3D=20
  =
"";<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;=20
  $check_zout =3D=20
  =
"CHECKED";<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
  $check_zin =3D "";<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } else=20
  =
{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;=20
  $check_pan =3D=20
  =
"";<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;=20
  $check_zout =3D=20
  =
"";<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;=20
  $check_zin =3D "CHECKED";<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
  }<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $val_zsize =3D=20
  abs($zoom_factor);<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
  =
$myMap-&gt;zoompoint($zoom_factor,$my_point,$myMap-&gt;width,$myMap-&gt;h=
eight,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
  $my_extent);<BR><BR>}<BR>$img =3D $myMap-&gt;draw();<BR>$image_url =3D =

  =
$img-&gt;saveWebImage(GIF,1,1,0);<BR><BR>?&gt;<BR>&lt;BODY&gt;<BR>&lt;cen=
ter&gt;<BR>&lt;table=20
  border=3D0 cellspacing=3D0 cellpadding=3D4=20
  bgcolor=3D"#FFFFFF"&gt;<BR>&lt;tr&gt;<BR>&lt;td valign=3D"top"=20
  align=3Dcenter&gt;<BR>&nbsp; &lt;table cellpadding=3D"0" =
cellspacing=3D"5"=20
  border=3D"5"&gt;<BR>&nbsp;&nbsp;&nbsp; &lt;tr&gt;&lt;td =
colspan=3D"2"&gt;&lt;INPUT=20
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?&gt;" width=3D600=20
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  &lt;tr&gt;<BR>&nbsp;&lt;TR&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
  =
&lt;TD&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
  Pan<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
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&lt;TD&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
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  $check_pan?&gt;&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
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&lt;/TD&gt;<BR>&nbsp;&lt;/TR&gt;<BR>&nbsp;&lt;TR&gt;<BR>&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;=20
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&lt;TD&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
  Zoom In<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
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&lt;TD&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
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  $check_zin?&gt;&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
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&lt;/TD&gt;<BR>&nbsp;&lt;/TR&gt;<BR>&nbsp;&lt;TR&gt;<BR>&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;=20
  =
&lt;TD&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
  Zoom Out<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
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&lt;TD&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
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&lt;/TD&gt;<BR>&nbsp;&lt;/TR&gt;<BR>&nbsp;&lt;TR&gt;<BR>&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;=20
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&lt;TD&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
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$val_zsize?&gt;"<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;=20
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&lt;/TD&gt;<BR>&nbsp;&lt;/TR&gt;<BR>&nbsp;&lt;TR&gt;<BR>&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;=20
  =
&lt;TD&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
  Full Extent<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
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&lt;TD&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
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VALUE=3D"Go"<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;=20
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$extent_to_html?&gt;"&gt;<BR>&lt;/FORM&gt;<BR>&lt;/CENTER&gt;<BR><BR>&lt;=
/BODY&gt;<BR>&lt;/HTML&gt;<BR><BR><BR>current=20
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MINSCALE=20
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  "/mapserver/tmp3/"<BR>&nbsp;END<BR><BR><BR>SYMBOL<BR>&nbsp; NAME=20
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CLASSITEM=20
  'ID'<BR>&nbsp; CLASS<BR>&nbsp;&nbsp;&nbsp; EXPRESSION=20
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128<BR>&nbsp;&nbsp;&nbsp; COLOR=20
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EXPRESSION=20
  /./<BR>&nbsp;&nbsp;&nbsp; OUTLINECOLOR 128 128 =
128<BR>&nbsp;&nbsp;&nbsp; COLOR=20
  255 255 255<BR>&nbsp; END<BR>END<BR><BR>LAYER<BR>&nbsp;NAME=20
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  'ID'<BR>&nbsp;CLASS<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
EXPRESSION=20
  /./<BR>COLOR 255 225 185<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =

  OUTLINECOLOR 0 0 0<BR><BR>&nbsp; =
END<BR><BR><BR>END<BR><BR>LAYER<BR>&nbsp;=20
  NAME 'target2'<BR>&nbsp; TYPE point<BR>&nbsp; DATA target2<BR>&nbsp; =
STATUS=20
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SIZE=20
  20<BR>&nbsp;&nbsp;&nbsp;&nbsp; LABEL<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
COLOR 0=20
  0 0<BR>&nbsp;&nbsp;&nbsp;&nbsp; END<BR>&nbsp;&nbsp;=20
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TYPE=20
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COLOR 255 0=20
  0<BR>&nbsp;&nbsp;&nbsp; SIZE 4<BR>&nbsp;&nbsp;&nbsp;&nbsp;=20
  LABEL<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; COLOR 0 0=20
  0<BR>&nbsp;&nbsp;&nbsp;&nbsp; END<BR>&nbsp;&nbsp;=20
  END<BR><BR><BR>END<BR><BR>END # end of map=20
file<BR><BR><BR></DIV></BLOCKQUOTE></FONT></BODY></HTML>

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