FW: simple question that the answers eludes my logic
Dan Dansereau
ddansereau at HYDROPOINT.COM
Mon Oct 9 20:27:11 EDT 2006
Hello ALL
I have a need to have a small map file ( at the bottom of this email )
and a CGI driver - based on the Itasca Demo - it works for me,
and do to the total amount of other processes and scripts that make
use if this technique - a rewrite to another form such as PHP or JAVA
is currently out of the question.
I would like to have the map file get the raster image name at run time
And not fixed with "Jan" like the below map file segment. I'm not sure
where
or how to put this in the HTML. Currently the HTML gets then names from
a
pre-defined pull down menu. The new names need to be similar to
Jan_01_2006
but can be anything legal date range.
......
LAYER
NAME Jan_Earth
TYPE RASTER
STATUS ON
TILEINDEX "Jan_index.shp"
TILEITEM "Location"
CLASS
NAME 'Jan_Earth'
keyimage data/JanKey.png
END
END
....
I have tried several different ways as per the documentation to insert
this into the html and the map file
but with no success.
Would anybody have a mapfile and a CGI example that would be somewhat
compatible that they would be willing to share - or be able to point me
towards some additional documentation...
My thanks ahead of time...
Dan
This is the map file
# start of maps file
MAP
NAME WORLD
STATUS ON
SIZE 600 600
EXTENT -180.0 -90.0 180.0 90.0
UNITS dd
SHAPEPATH "data"
IMAGECOLOR 255 255 255
TEMPLATEPATTERN "world"
IMAGETYPE PNG
SYMBOL
NAME 'circle'
TYPE ELLIPSE
POINTS 1 1 END
FILLED TRUE
END
......took a bunch out here due to the 80k email limits
#
# Start of layer definitions
#
# raster data 1st
# World Images by Month
LAYER
NAME Jan_Earth
TYPE RASTER
STATUS ON
TILEINDEX "Jan_index.shp"
TILEITEM "Location"
CLASS
NAME 'Jan_Earth'
keyimage data/JanKey.png
END
END
LAYER
NAME Feb_Earth
TYPE RASTER
STATUS ON
TILEINDEX "Feb_index.shp"
TILEITEM "Location"
CLASS
NAME 'Feb_Earth'
keyimage data/FebKey.png
END
END
#
# then the rest of the maps
#
LAYER
CONNECTIONTYPE postgis
CONNECTION "user=dad dbname=maps host=10.0.0.215"
NAME wld_country
TYPE POLYGON
DATA "the_geom from wld_country"
STATUS on
TRANSPARENCY 50
CLASS
NAME 'wld_country'
OUTLINECOLOR 1 1 1
END
END
.........took a bunch out here due to the 80k email limit
END # Map File
This is the html file
<html>
<head>
<meta http-equiv="Content-Language" content="en-us">
<title>MapServer/Imaps</title>
<! all code and source from the mapserver examples and documentation ->
<!-- the DHTML JavaScript library includes -->
<script language="javascript" src="javascript/cbe/cbe_core.js"></script>
<script language="javascript"
src="javascript/cbe/cbe_event.js"></script>
<!-- MapServer specific JavaScript library includes -->
<script language="javascript" src="javascript/mapserv.js"></script>
<script language="Javascript" src="javascript/dbox.js"></script>
<!-- utility library -->
<script language="JavaScript" src="javascript/utils.js"></script>
<!-- scripting specific to the application -->
<script language="javascript">
// first, nab any arguments passed to this page (so we don't have to
edit the page)
var args = getargs();
// the DHTML main mapping window
var main = new dBox("main", 600, 600, "#FF0000", 2);
// main.verbose = true;
// the DHTML reference map window
var reference = new dBox("reference", 120, 120, "#989898", 1);
reference.box = false;
reference.cursorsize = 0;
// mapserv.js global variables
var MapServer = args.program;
var QueryServer = MapServer;
var Interface = "dhtml";
// create the Mapserv object
var ms = new Mapserv("main", args.map, -180.0, -90.0, 180.0, 90.0,
600, 600);
// layer definitions
ms.layers[ms.layers.length] = new Layer('wld_country', 'wld_country',
'layers', true, null, null);
ms.layers[ms.layers.length] = new Layer('Jan_Earth', 'Jan_Earth',
'layers', false, null, null);
ms.layers[ms.layers.length] = new Layer('Feb_Earth', 'Feb_Earth',
'layers', false, null, null);
......took a bunch out here due to the 80k email limits
ms.layers[ms.layers.length] = new Layer('wld_states', 'wld_states',
'layers', false, null, null);
......took a bunch out here due to the 80k email limits
ms.layers[ms.layers.length] = new Layer('stations', 'stations',
'layers', false, null, null);
ms.buildlayers();
// add the reference map
ms.referencemap = new Mapserv("reference", args.map, -180.0, -90.0,
180.0, 90.0, 180, 180);
//
// Extensions to Mapserv.draw(): this allows you to exend the
capabilties of
// of the default draw method. There are post and pre draw functions
available.
//
function predraw() {
// clear any query results
top.query_frame.location.href='blank.html';
....took a bunch out here due to the 80k email limits
....this is most of the standard java pan/zoom/scalebar stuff
// various event handlers called by jBox/dBox
function mousemove_handler(name, x, y) {
window.status = "Coordinates: x=" + Math.round(Number(ms.extent[0] +
x*ms.cellsize)) + " and y=" + Math.round(Number(ms.extent[3] -
y*ms.cellsize));
}
function mouseexit_handler(name) { window.status = ""; }
function mouseenter_handler(name) { window.status = ""; }
// page initialization function
function windowOnload() {
main.initialize();
reference.initialize();
ms.zoomdir=1;
ms.draw();
}
// zoom to full extent function
function ZoomExtent() {
main.initialize();
reference.initialize();
ms.zoomdir=1;
ms.draw();
}
</script>
</head>
<body bgcolor=#FFFFFF onResize="main.sync();reference.sync()">
<center>
<table border=0 cellspacing=0 cellpadding=4>
<tr>
<td valign="top" align=center>
<div align="center">
<table width="390" border="0" cellspacing="0" cellpadding="0"
bgcolor="#000080">
<tr>
<td align="right" width="18"><a
href="javascript:ms.pan('nw')"><img src="graphics/nw.gif" width="18"
height="18" border="0" alt="pan northwest"></a></td>
...took a bunch out here due to the 80k email limits
...this was the pan and map html stuff....
<td valign="top" bgcolor=#ffffff>
<table cellpadding="1" cellspacing="0" border="0" bgcolor="#ffffff">
<tr><td>
<form name="mapserv" action="javascript:void(0)">
<img border="0" src="wtcc.png" width="195" height="58"><br>
<hr color="#3399FF">
<b> World Base Map </b>
<br>
<b> Choose an Action: </b><br>
<input onClick="ms.mode='map'" type="radio" name="mode" checked>
Browse Map<br>
<input onClick="ms.mode='nquery'" type="radio" name="mode">
Query Features
<br>
<hr color="#3399FF">
<b>Select Map Layers to Display </b><br>
<select multiple name="layers" size=4
onChange="ms.togglelayers(this)">
<option value="Jan_Earth" >Jan Earth Image
<option value="Feb_Earth" >Feb Earth Image
...took a bunch out here due to the 80k email limits
<option value="wld_country" selected > Country Boundaries
...took a bunch out here due to the 80k email limits
</option>
</select><br>
<input type="button" value="Refresh Map" onClick="ms.draw()">
<input type="button" value="Zoom Full" onClick="ZoomExtent()">
<hr color="#3399FF">
<b>Zoom Controls - Select & Click on Map</b><br>
Zoom In <input onClick="ms.zoomdir=1" type=radio name=zoomdir >
Pan <input onClick="ms.zoomdir=0" type=radio name=zoomdir
checked>
Zoom Out <input onClick="ms.zoomdir=-1" type=radio name=zoomdir>
<br>
<font size="1">Zoom in by drawing a "rubber band" box (left
button on
the mouse)</font>
<hr color="#3399FF">
</form>
<b>Legend:</b><br>
<img name="legend" src="graphics/red_pixel.gif">
<br>
<!-- this is the holding spot (the anchor) for the reference map
-->
<DIV id="reference_anchor" style="position:relative;
visibility:visible; width:100%; height:100%; left:0px; top:0px;">
<img src="graphics/red_pixel.gif" height="180" width="180"></DIV>
<!-- absolutely positioned layer to hold the reference map -->
<DIV id="reference" style="position:absolute; visibility:visible;
width:100%; height:100%; clip:rect(100%,100%,100%,100%);
background:transparent;">
<IMG name="reference" src="data/world.png" height="180"
width="180"></DIV>
</td></tr></table>
</td></tr>
</table>
</center>
<p>
<a href="javascript:top.location.href='wx_map1.html'">Return to Weather
Station & Interactive Selection</a> from
<script language="javascript">
document.write("<b>" + args.map_web_template + "</b>");
</script>
</body></html>
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