ScaleRangeSliderViewModel

const view = new MapView({
  container: "viewDiv",
  map: map
});

const scaleRangeSlider = new ScaleRangeSlider({
  viewModel: {  // autocasts as new ScaleRangeSliderViewModel()
    view: view
  }
}, "scaleRangeSliderDiv");

Property Overview

Property Details

declaredClass Stringreadonly inherited

The name of the class. The declared class name is formatted as esri.folder.className.

layer Layer

When provided, the initial minScale and maxScale values will match the layer's.

maxScale Number

The maximum scale of the active scale range. When the maxScale reaches the maxScaleLimit, the maxScale value becomes 0 and there is no maximum scale set.

maxScaleLimit Number

The lowest possible maximum scale value from the slider.

minScale Number

The minimum scale of the active scale range. When the minScale reaches the minScaleLimit, the minScale value becomes 0 and there is no minimum scale set.

minScaleLimit Number

The highest possible minimum scale value from the slider.

scaleRanges ScaleRangesreadonly

The valid scale ranges available based on the slider position.

sliderViewModel SliderViewModel

The SliderViewModel for supporting the scale range slider widget.

state Stringreadonly

The current state of the widget.

Possible Values:"disabled"|"ready"

Default Value:disabled

view MapView|SceneView

A reference to the MapView or SceneView. Set this to link the widget to a specific view.

Method Overview

Method Details

addHandles(handleOrHandles, groupKey)inherited

Since: ArcGIS API for JavaScript 4.25

Adds one or more handles which are to be tied to the lifecycle of the object. The handles will be removed when the object is destroyed.

// Manually manage handles
const handle = reactiveUtils.when(
  () => !view.updating,
  () => {
    wkidSelect.disabled = false;
  },
  { once: true }
);

// Handle gets removed when the object is destroyed.
this.addHandles(handle);

Parameters

handleOrHandles WatchHandle|WatchHandle[] Handles marked for removal once the object is destroyed.

groupKey * optional Key identifying the group to which the handles should be added. All the handles in the group can later be removed with Accessor.removeHandles(). If no key is provided the handles are added to a default group.

hasHandles(groupKey){Boolean}inherited

Since: ArcGIS API for JavaScript 4.25

Returns true if a named group of handles exist.

Parameter

groupKey * optional A group key.

Returns

Type	Description
Boolean	Returns true if a named group of handles exist.

Example

// Remove a named group of handles if they exist.
if (obj.hasHandles("watch-view-updates")) {
  obj.removeHandles("watch-view-updates");
}

mapScaleToSlider(scale){Number}

Utility method for converting scale-to-slider values.

Parameter

scale Number The map scale to be converted.

Returns

Type	Description
Number	The value of the slider.

mapSliderToScale(value){Number}

Utility method for converting slider-to-scale values.

Parameter

value Number The value of the slider.

Returns

Type	Description
Number	The map scale that corresponds to the value of the slider.

removeHandles(groupKey)inherited

Since: ArcGIS API for JavaScript 4.25

Removes a group of handles owned by the object.

Parameter

groupKey * optional A group key or an array or collection of group keys to remove.

Example

obj.removeHandles(); // removes handles from default group

obj.removeHandles("handle-group");
obj.removeHandles("other-handle-group");