вот простой код, который позволяет многоцветный маркер для карты Google
<?php
$con = mysql_connect("localhost","root","");
$Db=mysql_select_db("map",$con);
$select_det=mysql_query("select * from record");
// some code
?>
<html>
<head>
<title>EasyGoogleMap</title>
<script src="http://maps.google.com/maps?file=api&v=2&sensor=false&key=ABQIAAAAPDUET0Qt7p2VcSk6JNU1sBSM5jMcmVqUpI7aqV44cW1cEECiThQYkcZUPRJn9vy_TWxWvuLoOfSFBw" type="text/javascript"></script>
</head>
<body onUnload="GUnload()">
<div id="map" style="width: 550px; height: 450px"></div>
<script type="text/javascript">
var greenIcon = new GIcon(G_DEFAULT_ICON);
greenIcon.image = "http://localhost/pointer_image/markerRd.png";
var markerOptions1 = {icon:greenIcon};
var redIcon = new GIcon(G_DEFAULT_ICON);
redIcon.image = "http://localhost/pointer_image/markerGr.png";
var markerOptions2 = {icon:redIcon};
var yIcon = new GIcon(G_DEFAULT_ICON);
yIcon.image = "http://localhost/pointer_image/markerBl.png";
var markerOptions3 = {icon:yIcon};
//<![CDATA[
if (GBrowserIsCompatible()) {
// A function to create the marker and set up the event window
// Dont try to unroll this function. It has to be here for the function closure
// Each instance of the function preserves the contends of a different instance
// of the "marker" and "html" variables which will be needed later when the event triggers.
function createMarker(point,html,type) {
if(type=="b")
{
var marker = new GMarker(point, markerOptions1);
}
else if(type=="c")
{
var marker = new GMarker(point, markerOptions2);
}
else
{
var marker = new GMarker(point, markerOptions3);
}
GEvent.addListener(marker, "click", function() {
marker.openInfoWindowHtml(html);
});
return marker;
}
// Display the map, with some controls and set the initial location
var map = new GMap2(document.getElementById("map"));
map.addControl(new GLargeMapControl());
map.addControl(new GMapTypeControl());
<?php
while($fetch_record=mysql_fetch_array($select_det))
{
?>
map.setCenter(new GLatLng(<?php echo $fetch_record['lat'];?>,<?php echo $fetch_record['long'];?>),8);
// Set up three markers with info windows
var point = new GLatLng(<?php echo $fetch_record['lat'];?>,<?php echo $fetch_record['long'];?>);
var marker = createMarker(point,'<?php echo $fetch_record['desc'];?>','<?php echo $fetch_record['type'];?>')
map.addOverlay(marker);
<?php
}
?>
}
// display a warning if the browser was not compatible
else {
alert("Sorry, the Google Maps API is not compatible with this browser");
}
// This Javascript is based on code provided by the
// Community Church Javascript Team
// http://www.bisphamchurch.org.uk/
// http://econym.org.uk/gmap/
//]]>
</script>
</body>
</html>
здесь вы должны поместить маркерное изображение из папки с именем "pointer_image"
Вы можете изменить изображение маркера, изменив код
, отредактировав эту часть кода: -
<script type="text/javascript">
var greenIcon = new GIcon(G_DEFAULT_ICON);
greenIcon.image = "http://localhost/pointer_image/markerRd.png";
var markerOptions1 = {icon:greenIcon};
var redIcon = new GIcon(G_DEFAULT_ICON);
redIcon.image = "http://localhost/pointer_image/markerGr.png";
var markerOptions2 = {icon:redIcon};
var yIcon = new GIcon(G_DEFAULT_ICON);
yIcon.image = "http://localhost/pointer_image/markerBl.png";
var markerOptions3 = {icon:yIcon};
надеюсь, это поможет вам, я также предоставляю базу данных, которая также приведена ниже ------
-- phpMyAdmin SQL Dump
-- version 2.11.4
-- http://www.phpmyadmin.net
--
-- Host: localhost
-- Generation Time: Sep 19, 2011 at 12:48 PM
-- Server version: 5.0.51
-- PHP Version: 5.2.5
SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";
--
-- Database: `map`
--
-- --------------------------------------------------------
--
-- Table structure for table `record`
--
CREATE TABLE IF NOT EXISTS `record` (
`id` int(11) NOT NULL auto_increment,
`lat` varchar(100) NOT NULL,
`long` varchar(100) NOT NULL,
`desc` varchar(200) NOT NULL,
`type` varchar(5) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=4 ;
--
-- Dumping data for table `record`
--
INSERT INTO `record` (`id`, `lat`, `long`, `desc`, `type`) VALUES
(1, '22.572646', '88.363895', 'kolkata', 'a'),
(2, '22.982022', '88.440027', 'kalyani', 'b'),
(3, '23.4', '88.5', 'krishnanagar', 'c');