protected function getCurrentScale()
{
if ($this->unitsPerMeter === null) {
$this->unitsPerMeter = self::NO_PROJECTION;
$projRep = new MapProjection($this->mapProjection);
if (!$projRep->isGeographic()) {
$unitsPerMeter = $projRep->getUnitsPerMeter();
if ($unitsPerMeter) {
$this->unitsPerMeter = $unitsPerMeter;
}
}
}
if ($this->unitsPerMeter != self::NO_PROJECTION) {
$metersPerPixel = $this->getHorizontalRange() / $this->imageWidth / $this->unitsPerMeter;
return $metersPerPixel / self::LIFE_SIZE_METERS_PER_PIXEL;
} else {
$range = $this->getHorizontalRange();
$zoomLevel = ceil(log(360 / $range, 2));
return oldPixelScaleForZoomLevel($zoomLevel);
}
}
function getFooterScript()
{
$zoomLevel = $this->zoomLevel;
$targetScale = oldPixelScaleForZoomLevel($zoomLevel);
if ($this->levelsOfDetail) {
// TODO: if all zoom levels fail this test, the zoom level will
// revert to the internal powers-of-two style zoom level i.e. not
// necessarily what we want
foreach ($this->levelsOfDetail as $levelData) {
if ($levelData['scale'] < $targetScale) {
break;
} else {
$zoomLevel = $levelData['level'];
}
}
}
$moreLayers = array();
foreach ($this->moreLayers as $layer) {
$moreLayers[] = '"' . $layer . '"';
}
$footer = $this->prepareJavascriptTemplate('ArcGISJSMapFooter');
$footer->setValues(array('___WKID___' => $this->mapProjection, '___MAPELEMENT___' => $this->mapElement, '___IMAGE_WIDTH___' => $this->imageWidth, '___IMAGE_HEIGHT___' => $this->imageHeight, '___ZOOMLEVEL___' => $zoomLevel, '___BASE_URL___' => $this->baseURL, '___MORE_LAYER_SCRIPT___' => '[' . implode(',', $moreLayers) . ']', '___MARKER_SCRIPT___' => $this->getMarkerJS(), '___POLYGON_SCRIPT___' => $this->getPolygonJS(), '___PATH_SCRIPT___' => $this->getPathJS()));
if ($this->mapProjector) {
$xy = $this->mapProjector->projectPoint($this->center);
list($x, $y) = MapProjector::getXYFromPoint($xy);
$footer->setValues(array('___X___' => $x, '___Y___' => $y));
} else {
$footer->setValues(array('___X___' => $this->center['lon'], '___Y___' => $this->center['lat']));
}
return $footer->getScript();
}
function getFooterScript()
{
// put dojo stuff in the footer since the header script
// gets loaded before the included script
$zoomLevel = $this->zoomLevel;
$targetScale = oldPixelScaleForZoomLevel($zoomLevel);
if ($this->levelsOfDetail) {
foreach ($this->levelsOfDetail as $levelData) {
if ($levelData['scale'] < $targetScale) {
break;
} else {
$zoomLevel = $levelData['level'];
}
}
}
$moreLayersJS = '';
foreach ($this->moreLayers as $anotherLayer) {
$moreLayersJS .= <<<JS
map.addLayer(new esri.layers.ArcGISDynamicMapServiceLayer("{$anotherLayer}", 1.0));
JS;
}
$footer = $this->prepareJavascriptTemplate('ArcGISJSMapFooter');
$footer->setValues(array('___FULL_URL_PREFIX___' => FULL_URL_PREFIX, '___API_URL___' => FULL_URL_BASE . API_URL_PREFIX . "/map/projectPoint", '___WKID___' => $this->mapProjection, '___MAPELEMENT___' => $this->mapElement, '___IMAGE_WIDTH___' => $this->imageWidth, '___IMAGE_HEIGHT___' => $this->imageHeight, '___ZOOMLEVEL___' => $zoomLevel, '___BASE_URL___' => $this->baseURL, '___MORE_LAYER_SCRIPT___' => $moreLayersJS, '___MARKER_SCRIPT___' => $this->getMarkerJS(), '___POLYGON_SCRIPT___' => $this->getPolygonJS(), '___PATH_SCRIPT___' => $this->getPathJS()));
if ($this->mapProjector) {
$xy = $this->mapProjector->projectPoint($this->center);
list($x, $y) = MapProjector::getXYFromPoint($xy);
$footer->setValues(array('___X___' => $x, '___Y___' => $y));
} else {
$footer->setValues(array('___X___' => $this->center['lon'], '___Y___' => $this->center['lat']));
}
return $footer->getScript();
}
