[UMN_MAPSERVER-USERS] FW: simple question that the answers eludes my logic

Dan Dansereau Mon, 09 Oct 2006 18:39:39 -0700

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

….

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

LAYER

NAME Feb_Earth

TYPE RASTER

STATUS ON

TILEINDEX "Feb_index.shp"

TILEITEM "Location"

CLASS

NAME 'Feb_Earth'

keyimage data/FebKey.png

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

………took a bunch out here due to the 80k email limit

END # Map File

This is the html file

<html>

<head>

<title>MapServer/Imaps</title>

<! all code and source from the mapserver examples and documentation ->

// 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='';

….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>

<tr>

<tr>

…took a bunch out here due to the 80k email limits

…this was the pan and map html stuff….

<b> World Base Map </b>

<br>

<b> Choose an Action: </b><br>

<input type="radio" name="mode" checked> Browse Map<br>

<input type="radio" name="mode"> Query Features

<br>

<b>Select Map Layers to Display </b><br>

<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>

<b>Zoom Controls - Select & Click on Map</b><br>

Zoom In <input type=radio name=zoomdir >

Pan <input type=radio name=zoomdir checked>

Zoom Out <input type=radio name=zoomdir>

<br>

<font size="1">Zoom in by drawing a "rubber band" box (left button on

the mouse)</font>

</form>

<b>Legend:</b><br>

<br>

</td></tr></table>

</td></tr>

</table>

</center>

<p>

<a href="" to Weather Station & Interactive Selection</a> from

document.write("<b>" + args.map_web_template + "</b>");

</script>

</body></html>

[UMN_MAPSERVER-USERS] FW: simple question that the answers eludes my logic

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