MeasureHandler - Cesium Documentation

MeasureHandler

new Cesium.MeasureHandler(viewer, mode, clampMode)

Measurement processor class.

Name	Type	Description
`viewer`	Viewer	Specify the view used for measurement.
`mode`	MeasureMode	Specify the measurement mode.
`clampMode`	ClampMode	Specify the style of geometric objects (sticking to the ground, sticking to objects)

Example:

var handler = new MeasureHandler(viewer,Cesium.MeasureMode.Distance);
handler.activate();
handler.measureEvt.addEventListener(function(obj){
    console.log(obj);
});

See:

MeasureMode

Members

activeEvt : Event

Activate the event and listen to the current event to get the status of the processor.

areaLabel : Entity

When the measurement mode is Area, use this label entity object areaLabel to display the area measurement result.

capturePointColor : Color

Get or set the color of the point cloud capture point during measurement.

capturePointSize : Number

Get or set the size of the point cloud capture point during measurement.

clampMode : ClampMode

Post object mode.

disLabel : Entity

When the measurement mode is Distance, use this label entity object disLabel to display the space distance measurement result.

enableDepthTest : Boolean

Set whether the depth detection is enabled for the drawing object. It is enabled by default.

fillColor : position

Gets or sets the fill color of the specified geometric object during measurement.

hLabel : Entity

When the measurement mode is DVH, use this label entity object hLabel to display the horizontal distance measurement result.

lineColor : position

获取或设置量算时指定几何对象的线颜色。

lineDisplayType : Number

Gets or sets the type of measurement timeline.

lineWidth : position

Gets or sets the line width of the specified geometric object during measurement.

measureEvt : Event

Measure events, monitor current events to obtain measurement results. When the measurement mode is MeasureMode.Distance, the callback result is {distance: distance}. When the measurement mode is MeasureMode.Area, the callback result is {area: area, positions: positions}. When the measurement mode is MeasureMode.DVH, the callback result is {distance: distance,verticalHeight: vHeight,horizontalDistance: hHeight}.

Example:

var handler = new Cesium.MeasureHandler(viewer,Cesium.MeasureMode.Area);
handler.measureEvt.addEventListener(function(result){
                    var area = result.area > 1000000 ? result.area/1000000 + 'km²' : result.area + '㎡'
                    handler.areaLabel.text = 'area:' + area;
                });

vLabel : Entity

When the measurement mode is DVH or Height, use this label entity object vLabel to display the vertical height measurement result.

Methods

staticCesium.MeasureHandler.computeArea(positions)

Calculate the area based on a series of Cartesian coordinate points, in m2 (square meters).

Name	Type	Description
`positions`		The coordinates of each point on the surface

activate()

Activate the measurement processor.

clear()

Clear all elements related to measurement.

deactivate()

Turn off the measurement processor.