class Symbols in Flot 8

Generate a chart using different point symbols.

Hierarchy

• class \Drupal\Core\Controller\ControllerBase implements ContainerInjectionInterface uses LoggerChannelTrait, MessengerTrait, LinkGeneratorTrait, RedirectDestinationTrait, UrlGeneratorTrait, StringTranslationTrait
  • class \Drupal\flot_examples\Controller\Symbols

1 string reference to 'Symbols'

flot_examples.routing.yml in flot_examples/flot_examples.routing.yml

flot_examples/flot_examples.routing.yml

File

flot_examples/src/Controller/Symbols.php, line 10

Namespace

Drupal\flot_examples\Controller

class Symbols extends ControllerBase {

  /**
   * Symbols.
   */
  public function content() {
    $data = [];
    $series = $this
      ->generate(2, 1.8);
    $data[] = [
      'data' => $series,
      'points' => [
        'symbol' => 'circle',
      ],
    ];
    $series = $this
      ->generate(3, 1.5);
    $data[] = [
      'data' => $series,
      'points' => [
        'symbol' => 'square',
      ],
    ];
    $data[] = [
      'data' => $this
        ->generate(4, 0.9),
      'points' => [
        'symbol' => 'diamond',
      ],
    ];
    $data[] = [
      'data' => $this
        ->generate(6, 1.4),
      'points' => [
        'symbol' => 'triangle',
      ],
    ];
    $data[] = [
      'data' => $this
        ->generate(7, 1.1),
      'points' => [
        'symbol' => 'cross',
      ],
    ];
    $options = [
      'series' => [
        'points' => [
          'show' => TRUE,
          'radius' => 3,
        ],
      ],
      'grid' => [
        'hoverable' => TRUE,
      ],
    ];
    $text = [];
    $text[] = $this
      ->t('Points can be marked in several ways, with circles being the built-in default. For other point types, you can define a callback function to draw the symbol. Some common symbols are available in the symbol plugin.');
    $output[] = [
      '#type' => 'flot',
      '#theme' => 'flot_examples',
      '#options' => $options,
      '#data' => $data,
      '#text' => $text,
    ];
    return $output;
  }

  /**
   * Generate sin waves.
   */
  private function generate($offset, $amplitude) {
    $res = [];
    $start = 0;
    $end = 10;
    for ($i = 0; $i <= 50; $i++) {
      $x = start + $i / 50 * ($end - $start);
      $res[] = [
        $x,
        $amplitude * sin($x + $offset),
      ];
    }
    return $res;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
ControllerBase::$configFactory	protected	property	The configuration factory.
ControllerBase::$currentUser	protected	property	The current user service.	1
ControllerBase::$entityFormBuilder	protected	property	The entity form builder.
ControllerBase::$entityManager	protected	property	The entity manager.
ControllerBase::$entityTypeManager	protected	property	The entity type manager.
ControllerBase::$formBuilder	protected	property	The form builder.	2
ControllerBase::$keyValue	protected	property	The key-value storage.	1
ControllerBase::$languageManager	protected	property	The language manager.	1
ControllerBase::$moduleHandler	protected	property	The module handler.	2
ControllerBase::$stateService	protected	property	The state service.
ControllerBase::cache	protected	function	Returns the requested cache bin.
ControllerBase::config	protected	function	Retrieves a configuration object.
ControllerBase::container	private	function	Returns the service container.
ControllerBase::create	public static	function	Instantiates a new instance of this class. Overrides ContainerInjectionInterface::create	40
ControllerBase::currentUser	protected	function	Returns the current user.	1
ControllerBase::entityFormBuilder	protected	function	Retrieves the entity form builder.
ControllerBase::entityManager Deprecated	protected	function	Retrieves the entity manager service.
ControllerBase::entityTypeManager	protected	function	Retrieves the entity type manager.
ControllerBase::formBuilder	protected	function	Returns the form builder service.	2
ControllerBase::keyValue	protected	function	Returns a key/value storage collection.	1
ControllerBase::languageManager	protected	function	Returns the language manager service.	1
ControllerBase::moduleHandler	protected	function	Returns the module handler.	2
ControllerBase::redirect	protected	function	Returns a redirect response object for the specified route. Overrides UrlGeneratorTrait::redirect
ControllerBase::state	protected	function	Returns the state storage service.
LinkGeneratorTrait::$linkGenerator	protected	property	The link generator.	1
LinkGeneratorTrait::getLinkGenerator Deprecated	protected	function	Returns the link generator.
LinkGeneratorTrait::l Deprecated	protected	function	Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator Deprecated	public	function	Sets the link generator service.
LoggerChannelTrait::$loggerFactory	protected	property	The logger channel factory service.
LoggerChannelTrait::getLogger	protected	function	Gets the logger for a specific channel.
LoggerChannelTrait::setLoggerFactory	public	function	Injects the logger channel factory.
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
RedirectDestinationTrait::$redirectDestination	protected	property	The redirect destination service.	1
RedirectDestinationTrait::getDestinationArray	protected	function	Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination	protected	function	Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination	public	function	Sets the redirect destination service.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
Symbols::content	public	function	Symbols.
Symbols::generate	private	function	Generate sin waves.
UrlGeneratorTrait::$urlGenerator	protected	property	The url generator.
UrlGeneratorTrait::getUrlGenerator Deprecated	protected	function	Returns the URL generator service.
UrlGeneratorTrait::setUrlGenerator Deprecated	public	function	Sets the URL generator service.
UrlGeneratorTrait::url Deprecated	protected	function	Generates a URL or path for a specific route based on the given parameters.