[Mapserver-users] Find and ZoomTo shape file record

Wed Oct 1 03:00:51 EDT 2003

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On my previous application the user was able to find a record in the shape
file and the map would zoom into that record and colour it red. I did this
by having a java script function -

function findBuilding(inBuilding){
  var aForm = document.forms[0]
  aForm.building.value  = inBuilding;

  aForm.mode.value = "itemquery";
  aForm.qlayer.value = "building_query";
  aForm.mapext.value = "shapes";
  aForm.buffer.value = "0.005";
  aForm.submit()
}

and in my map file -

LAYER   # this layer just displays one building when it has been queried
  NAME "building_query"
  DATA Build
  TYPE  POLYGON
  STATUS OFF
  FILTERITEM Bldg_name
  FILTER "%building%"
  CLASS
    TEMPLATE "demo.html"        # Use to display map
    #COLOR 255 0 0
    #OUTLINECOLOR 255 0 0
  END # CLASS
END # LAYER

And it works fine.
========================================
Now, I am working with the sample - DHTML rubber-band zoom sample from
http://maps.dnr.state.mn.us/mapserver_demos/workshop

An I am trying to achive the same functionality. Note: I cannot "fix" the
extents of the map area I want to zoom because the spatial coordinates of
the shape fuile records are constantly changing. Thanks

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 5.50.4134.600" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV>On my previous 
application the user was able to find a record in the shape file and the map 
would zoom into that record and colour it red. I did this by having a java 
script function - function findBuilding(inBuilding){ &nbsp; var aForm 
= document.forms[0] &nbsp; aForm.building.value&nbsp; = 
inBuilding; &nbsp; aForm.mode.value = "itemquery"; &nbsp; 
aForm.qlayer.value = "building_query"; &nbsp; aForm.mapext.value = 
"shapes"; &nbsp; aForm.buffer.value = "0.005"; &nbsp; 
aForm.submit() } and in my map file - LAYER&nbsp;&nbsp; # this 
layer just displays one building when it has been queried &nbsp; NAME 
"building_query" &nbsp; DATA Build &nbsp; TYPE&nbsp; POLYGON &nbsp; 
STATUS OFF &nbsp; FILTERITEM Bldg_name &nbsp; FILTER 
"%building%" &nbsp; CLASS &nbsp;&nbsp;&nbsp; TEMPLATE 
"demo.html"&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Use to display 
map &nbsp;&nbsp;&nbsp; #COLOR 255 0 0 &nbsp;&nbsp;&nbsp; #OUTLINECOLOR 255 
0 0 &nbsp; END # CLASS END # LAYER And it works 
fine. ======================================== Now, I am working with the 
sample - DHTML rubber-band zoom sample from <A 
href="http://maps.dnr.state.mn.us/mapserver_demos/workshop">http://maps.dnr.state.mn.us/mapserver_demos/workshop</A> An I am trying to achive the same functionality. 
Note: I cannot "fix" the extents of the map area I want to zoom because the 
spatial coordinates of the shape fuile records are constantly changing. 
Thanks </DIV></BODY></HTML>

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