Can't draw Line in QML

KanjaSousuke

I want to draw line. But, I can't

Where I mistake?

 

My code:

 

 

import QtQuick 2.6
import QtQuick.Controls 2.2
import Esri.ArcGISRuntime 100.9

ApplicationWindow {
    id: appWindow
    width: 800
    height: 600
    title: "MapTest2"

    // add a mapView component
    MapView {
        id: mapView
        anchors.fill: parent
        // set focus to enable keyboard navigation
        focus: true

        // add a map to the mapview
        Map {
            // add the BasemapTopographic basemap to the map
            BasemapTopographic {}
        }

        onMouseClicked: {
            pointBuilder.points.addPointXY(0, 35)
            pointBuilder.points.addPointXY(135, 35)
            lineBuilder.points.addPointXY(0, 35)
            lineBuilder.points.addPointXY(135, 35)

            pointA.geometry = pointBuilder.geometry
            lineA.geometry = lineBuilder.geometry
        }

        GraphicsOverlay {
            id: overlay

            Graphic {
                id: pointA
                zIndex: 2
                SimpleMarkerSymbol {
                    color: "red"
                    size: 15
                    style: Enums.SimpleMarkerSymbolStyleCircle
                }
            }

            Graphic{
                id: lineA
                zIndex: 1
                SimpleLineSymbol {
                    id: simpleLineSymbol
                    style: Enums.SimpleLineSymbolStyleDash
                    width: 10
                    color: "green"
                }
            }
        }

        MultipointBuilder{
            id: pointBuilder
            spatialReference: SpatialReference {
                wkid: 6668
            }
        }

        MultipointBuilder{
            id: lineBuilder
            spatialReference: SpatialReference {
                wkid: 6668
            }

        }
    }

}

 

This code can draw point.

 

Tanner_Yould

Hi @KanjaSousuke, thanks for reaching out. Fortunately this is a fairly easy fix. You'll need to use a PolylineBuilder instead of a MultipointBuilder when creating the line geometry. The PolylineBuilder does not have a points property, so you will also need to remove that when constructing your geometries. Updating the following lines should resolve your issue.

 

27 lineBuilder.addPointXY(0, 35)
28 lineBuilder.addPointXY(135, 35)

67 PolylineBuilder {

 

For more information about creating geometries in QML, I recommend taking a look at our Create geometries sample.

Thank you and please don't hesitate to follow up if there's anything else I can help with!