class Zooming in Flot 8

Display a chart demonstrating zooming in and out.

Hierarchy

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

1 string reference to 'Zooming'

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

flot_examples/flot_examples.routing.yml

File

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

Namespace

Drupal\flot_examples\Controller

class Zooming extends ControllerBase {

  /**
   * Zooming.
   */
  public function content() {

    // Basic line chart.
    $d = array();
    $x1 = 0;
    $x2 = 3 * pi();
    for ($i = 0; $i <= 100; $i++) {
      $x = $x1 + $i * ($x2 - $x1) / 100;
      $d[] = array(
        $x,
        sin($x * sin($x)),
      );
    }
    $data[] = array(
      'label' => 'sin(x*sin(x))',
      'data' => $d,
    );
    $options_p = [
      'legend' => [
        'show' => FALSE,
      ],
      'series' => [
        'lines' => [
          'show' => TRUE,
        ],
        'points' => [
          'show' => TRUE,
        ],
      ],
      'yaxis' => [
        'ticks' => 10,
      ],
      'selection' => [
        'mode' => 'xy',
      ],
    ];
    $options_o = [
      'legend' => [
        'show' => FALSE,
      ],
      'series' => [
        'lines' => [
          'show' => TRUE,
          'lineWidth' => 1,
        ],
        'shadowSize' => 0,
      ],
      'xaxis' => [
        'ticks' => 4,
      ],
      'yaxis' => [
        'ticks' => 3,
        'min' => -2,
        'max' => 2,
      ],
      'grid' => [
        'color' => "#999",
      ],
      'selection' => [
        'mode' => 'xy',
      ],
    ];
    $text = [];
    $text[] = $this
      ->t('Selection support makes it easy to construct flexible zooming schemes. With a few lines of code, the small overview plot to the right has been connected to the large plot. Try selecting a rectangle on either of them.');
    $output['placeholder'] = [
      '#type' => 'flot',
      '#data' => $data,
      '#options' => $options_p,
      '#theme' => 'flot_examples_zooming',
      '#text' => $text,
    ];

    // This next entry ensures the data is available to the javascript.
    // The JS script provided in the above twig template will handle the
    // rendering.
    // Alternatinvely, a new Element could be made and used which will accept
    // additional data and options parameters to render charts with a defined
    // overview/zoom relationship.
    $output['overview'] = [
      '#type' => 'flot',
      '#data' => $data,
      '#options' => $options_o,
      '#id' => 'overview',
      '#theme' => NULL,
    ];
    return $output;
  }

}

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::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
UrlGeneratorTrait::$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.
Zooming::content	public	function	Zooming.