Line/Area Ruler

The ruler is used to draw a line or area and display length/area in a dialog.Selecting a type determines whether the element measures lines or areas. Each Ruler-element can only measure either lines or areas.

../../../../../_images/ruler1.jpg

Configuration

../../../../../_images/ruler_configuration1.jpg
  • Title: Title of the element. The title will be listed in “Layouts” and allows to distinguish between different buttons. It will be indicated if “Show label” is activated.
  • Tooltip: text to use as tooltip.
  • Target: Id of Map element to query.
  • Type: choose type of element: line or area.
  • Immediate: Select whether the calculated lengths are displayed immediately or only after the click in the map.

YAML-Definition:

tooltip: "ruler"   # text to use as tooltip
target: ~          # Id of Map element to query
type: 'line'       # choose type line or area
immediate: 'false' # True: Display the calculated lengths immediately. False: The calculated lengths are displayed only after clicking. Default: False.

You need a button to show this element. See Button for inherited configuration options. To use both functions (measuring areas and lines) in an application, you need two buttons that are in a group.

Class, Widget & Style

  • Class: Mapbender\CoreBundle\Element\Ruler
  • Widget: mapbender.element.ruler.js, subclasses mapbender.element.button.js
  • Style: mapbender.elements.css

HTTP Callbacks

None.

JavaScript API

activate

Activates the widget which then waits for mouse click on the map and starts to measure.

deactivate

Deactivates the widget.

JavaScript Signals

None.