title = $title;
$this->endpoint = $endpoint;
$this->layer = $layer;
$this->sld = $sld;
$this->transparent = true;
if (!$transparency)
$this->transparent = 'false';
$this->format= 'image/png';
}
/**
*
*/
function toJS($vname)
{
$js = "$vname = new OpenLayers.Layer.WMS('$this->title','$this->endpoint',{";
$js .= "layers: '$this->layer'";
$js .= ", format: '$this->format'";
if ($this->sld != '')
$js .= ", sld: '$this->sld'";
if ($this->transparent)
$js .= ", transparent:true";
else
$js .= ", transparent:false";
$js .= "});\n";
return $js;
}
}
class MapLayerWFS extends MapLayer
{
function MapLayerWFS($title, $endpoint, $layer, $maxfeatures)
{
$this->title = $title;
$this->endpoint = $endpoint;
$this->layer = $layer;
settype($maxfeatures,'integer');
$this->maxfeatures = $maxfeatures;
}
function toJS($vname)
{
$js = "$vname = new OpenLayers.Layer.WFS('$this->title','$this->endpoint',{";
$js .= "typename: '$this->layer'";
if ($this->maxfeatures > 0)
$js .= ", maxfeatures: '$this->maxfeatures'";
$js .= "}, { featureClass: OpenLayers.Feature.WFS});\n";
return $js;
}
}
/**
* Class implements a simple OpenLayers map generator.
*/
class MapIFrame
{
/**
* Constructor for IFrame generator
*/
function MapIFrame($width, $height, $divid)
{
settype($width, 'string');
settype($height, 'string');
$this->width = $width;
$this->height = $height;
$this->divname = $divid;
$this->googlebasemap = 1;
//longitude latitude
$this->initialPos = Array('0.0', '0.0', '2');
$this->layers = Array();
}
/**
* Add a Wms layer to the map
*/
function addWmsLayer($title, $endpoint, $layer, $sld, $transparency)
{
$wmslayer = new MapLayerWMS($title, $endpoint, $layer, $sld, $transparency);
$this->layers[] = $wmslayer;
}
/**
* Add a WFS layer to the map
*/
function addWfsLayer($title, $endpoint, $layer, $maxfeatures)
{
$wfslayer = new MapLayerWFS($title, $endpoint, $layer, $maxfeatures);
$this->layers[] = $wfslayer;
}
/**
*
*/
function toHTML()
{
$html = "";
$html .= "";
$html .= "";
$html .= "\n";
$html .= "";
$html .= sprintf("\n",
$this->width, $this->height);
$html .= "
\n";
$html .= "";
return $html;
}
}
/**
* Retrieve the value of the GET or POST parameter with name = $name. If the name is not present,
* return $defaultval
*
* @returns Value of GET or POST parameter
*/
function _getVar($name,$defaultval)
{
if (is_array($_GET))
{
$kys = array_keys($_GET);
$n = count($_GET);
for ($i=0; $i < $n; $i++)
{
if (strcasecmp($kys[$i],$name)==0)
{
$tmp = $kys[$i];
if (strlen($tmp) <= 0)
return NULL;
return $_GET[$kys[$i]];
}
}
}
if (is_array($_POST))
{
$kys = array_keys($_POST);
$n = count($_POST);
for ($i=0; $i < $n; $i++)
{
if (strcasecmp($kys[$i],$name)==0)
{
$tmp = $kys[$i];
if (strlen($tmp) <= 0)
return NULL;
return $_POST[$kys[$i]];
}
}
}
return $defaultval;
}
function _splita($delim, $str)
{
if (strpos($str, $delim) === false)
return Array($str);
return split($delim, $str);
}
/**
*
*/
function generateIFrameContent()
{
$width = _getVar('width',800);
$height = _getVar('height',475);
$divid = _getVar('divid','mappa_1');
$delim = _getVar('delim','\|');
$usegoogle = _getVar('google',0);
$genie = new MapIFrame($width, $height, $divid);
$genie->googlebasemap = $usegoogle;
//Add wms layers
$titles = _splita($delim, _getVar('mtitles',''));
$wmss = _splita($delim, _getVar('wms', '' ));
$layers = _splita($delim, _getvar('mlyrs', ''));
$slds = _splita($delim, _getVar('mslds', ''));
$trans = _splita($delim, _getVar('trans',''));
$nlayers = count($wmss);
error_log("nlayers: $nlayers");
for ($i=0; $i < $nlayers; $i++)
{
$title = $titles[$i];
$wms = $wmss[$i];
$layer = $layers[$i];
$sld = $slds[$i];
$tran = $trans[$i];
if (strlen($wms) > 0 &&
strlen($title) > 0 &&
strlen($layer) > 0)
{
$genie->addWmsLayer($title, $wms, $layer, $sld, $tran);
}
}
//Add wfs layers
$ftitles = _splita($delim, _getVar('ftitles',''));
$wfss = _splita($delim, _getVar('wfs', '' ));
$flayers = _splita($delim, _getvar('flyrs', ''));
$fmaxf = _splita($delim, _getVar('fmaxfeat', '500'));
$nlayers = count($wfss);
for ($i=0; $i < $nlayers; $i++)
{
$title = $ftitles[$i];
$wfs = $wfss[$i];
$layer = $flayers[$i];
$maxfeats = $fmaxf[$i];
if (strlen($wfs) > 0 &&
strlen($title) > 0 &&
strlen($layer) > 0)
{
$genie->addWfsLayer($title, $wfs, $layer, $maxfeats);
}
}
return $genie->toHTML();
}
/**
*
*/
function showHelp()
{
header("Content-Type: text/html");
?>
Openlayers IFrame generator
Generates HTML that can be included in a web page to show a map of _whatever_.
Parmeters may be specified by GET or POST.
Parameters:
width - The width of the IFrame (default = 800)
height - The height of the IFrame (default = 475)
delim - The delimiter to use for lists of values. Default is "|". Don't use ","
google - Display google background. 0=none, 1=satellite, 2=plain.
wms - A list of web mapping service endpoints to render (order is preserved).
mlyrs - A list of layers, each entry corresponding to a wms endpoint. Note that
a single wms endpoint may have more than one layer, separated by ","
mtitles - A list of titles for wms layers
mtrans - Transparency for each layer (use 0 or 1)
sld - A list of SLDs for wms layers
wfs - A list of web feature service endpoints to render (order is preserved).
flyrs - A list of layers, each entry corresponding to a wfs endpoint.
ftitles - A list of titles for wms layers
fmaxf - A list of max number of features per layer
Example:
mapIFrame.php?op=map&mtitles=OpenLayers&wms=http%3A//labs.metacarta.com/wms/vmap0%3F&mlyrs=basic&mslds=
mapIFrame.php?op=map&google=1
mapIFrame.php?op=map&google=1&ftitles=ds12003896&wfs=http%3A//omtest.cria.org.br%3A8080/geoserver/wfs&flyrs=ds12003896&maxfeat=500
mapIFrame.php?op=map&mtitles=meanRad&mtrans=true&wms=http%3A//omtest.cria.org.br/cgi-bin/mapserv%3Fmap%3D/opt/data/mapfiles/envlayers.map&mlyrs=meanRad&mslds=
&ftitles=example_dataset&wfs=http%3A//omtest.cria.org.br%3A8080/geoserver/wfs&flyrs=example_dataset&maxfeat=500
sld: http%3A//nomad.vieglais.com/biogeosdi/backend/util/rasterDps/sldrasrc.php%3Fl%3DmeanRad%26m%3D60%26x%3D300%26n%3D6%26o%3D0.5
&mtitles=meanRad&mtrans=true&wms=http://omtest.cria.org.br/cgi-bin/ogctemp.cgi/nPUGQi&mlyrs=nPUGQi&mslds=http%3A//nomad.vieglais.com/biogeosdi/backend/util/rasterDps/sldrasrc.php%3Fl%3DnPUGQi%26m%3D0.1%26x%3D2%26n%3D6%26o%3D0.5
Example:
Try me.