function GenerateMap($size)
{
global $sessionID, $mapName, $captureBox, $printSize, $normalizedCapture, $rotation, $scaleDenominator, $printDpi, $drawNorthArrow;
$userInfo = new MgUserInformation($sessionID);
$siteConnection = new MgSiteConnection();
$siteConnection->Open($userInfo);
$resourceService = $siteConnection->CreateService(MgServiceType::ResourceService);
$renderingService = $siteConnection->CreateService(MgServiceType::RenderingService);
$map = new MgMap();
$map->Open($resourceService, $mapName);
$selection = new MgSelection($map);
// Calculate the generated picture size
$envelope = $captureBox->Envelope();
$normalizedE = $normalizedCapture->Envelope();
$size1 = new Size($envelope->getWidth(), $envelope->getHeight());
$size2 = new Size($normalizedE->getWidth(), $normalizedE->getHeight());
$toSize = new Size($size1->width / $size2->width * $size->width, $size1->height / $size2->height * $size->height);
$center = $captureBox->GetCentroid()->GetCoordinate();
$map->SetDisplayDpi($printDpi);
$colorString = $map->GetBackgroundColor();
// The returned color string is in AARRGGBB format. But the constructor of MgColor needs a string in RRGGBBAA format
$colorString = substr($colorString, 2, 6) . substr($colorString, 0, 2);
$color = new MgColor($colorString);
$mgReader = $renderingService->RenderMap($map, $selection, $center, $scaleDenominator, $toSize->width, $toSize->height, $color, "PNG", false);
$tempImage = sys_get_temp_dir() . DIRECTORY_SEPARATOR . "mgo" . uniqid();
$mgReader->ToFile($tempImage);
$image = imagecreatefrompng($tempImage);
unlink($tempImage);
// Rotate the picture back to be normalized
$normalizedImg = imagerotate($image, -$rotation, 0);
// Free the original image
imagedestroy($image);
// Crop the normalized image
$croppedImg = imagecreatetruecolor($size->width, $size->height);
imagecopy($croppedImg, $normalizedImg, 0, 0, (imagesx($normalizedImg) - $size->width) / 2, (imagesy($normalizedImg) - $size->height) / 2, $size->width, $size->height);
// Free the normalized image
imagedestroy($normalizedImg);
if ($drawNorthArrow) {
// Draw the north arrow on the map
DrawNorthArrow($croppedImg);
}
header("Content-type: image/png");
imagepng($croppedImg);
//Uncomment to see what PHP-isms get spewed out that may be tripping up rendering
//Also replace instances of "////print_r" with "//print_r" to insta-uncomment all debugging calls
/*
ob_start();
imagepng($croppedImg);
$im = base64_encode(ob_get_contents());
ob_end_clean();
header("Content-type: text/html", true);
echo "<img src='data:image/png;base64,".$im."' alt='legend image'></img>";
*/
imagedestroy($croppedImg);
}
function GenerateMap($size)
{
global $sessionID, $mapName, $captureBox, $printSize, $normalizedCapture, $rotation, $scaleDenominator, $printDpi;
InitializeWebTier();
$userInfo = new MgUserInformation($sessionID);
$siteConnection = new MgSiteConnection();
$siteConnection->Open($userInfo);
$resourceService = $siteConnection->CreateService(MgServiceType::ResourceService);
$renderingService = $siteConnection->CreateService(MgServiceType::RenderingService);
$map = new MgMap();
$map->Open($resourceService, $mapName);
$selection = new MgSelection($map);
// Calculate the generated picture size
$envelope = $captureBox->Envelope();
$normalizedE = $normalizedCapture->Envelope();
$size1 = new Size($envelope->getWidth(), $envelope->getHeight());
$size2 = new Size($normalizedE->getWidth(), $normalizedE->getHeight());
$toSize = new Size($size1->width / $size2->width * $size->width, $size1->height / $size2->height * $size->height);
$center = $captureBox->GetCentroid()->GetCoordinate();
$map->SetDisplayDpi($printDpi);
$colorString = $map->GetBackgroundColor();
// The returned color string is in AARRGGBB format. But the constructor of MgColor needs a string in RRGGBBAA format
$colorString = substr($colorString, 2, 6) . substr($colorString, 0, 2);
$color = new MgColor($colorString);
$mgReader = $renderingService->RenderMap($map, $selection, $center, $scaleDenominator, $toSize->width, $toSize->height, $color, "PNG", false);
$tempImage = sys_get_temp_dir() . DIRECTORY_SEPARATOR . "mgo" . uniqid();
$mgReader->ToFile($tempImage);
$image = imagecreatefrompng($tempImage);
unlink($tempImage);
// Rotate the picture back to be normalized
$normalizedImg = imagerotate($image, -$rotation, 0);
// Free the original image
imagedestroy($image);
// Crop the normalized image
$croppedImg = imagecreatetruecolor($size->width, $size->height);
imagecopy($croppedImg, $normalizedImg, 0, 0, (imagesx($normalizedImg) - $size->width) / 2, (imagesy($normalizedImg) - $size->height) / 2, $size->width, $size->height);
// Free the normalized image
imagedestroy($normalizedImg);
// Draw the north arrow on the map
DrawNorthArrow($croppedImg);
header("Content-type: image/png");
imagepng($croppedImg);
imagedestroy($croppedImg);
}
