Picture marker symbol

View inQMLC++
View on GitHub
Sample viewer app

Use pictures for markers.

screenshot

Use case

When marking geoelements on a map, using custom, unique symbols can be helpful for highlighting and differentiating between locations. For example, a tourism office may use pictures of landmarks as symbols on an online map or app, to help prospective visitors to orient themselves more easily around a city.

How to use the sample

When launched, this sample displays a map with three picture marker symbols. Pan and zoom to explore the map.

How it works

  1. Create a PictureMarkerSymbol using the URL to an online or local image.
  2. Create a Graphic and set its symbol to the picture marker symbol.

Relevant API

  • PictureMarkerSymbol

Offline Data

Read more about how to set up the sample's offline data here.

Link Local Location
orange_symbol Png File <userhome>/ArcGIS/Runtime/Data/symbol/orange_symbol.png

About the data

The picture marker symbols in this sample are all constructed from different types of resources:

  • Campsite symbol constructed from a URL
  • Blue pin with a star stored in the resource folder that comes with the application
  • Orange pin created from a file path on disk (which is written to disk when the app starts and cleaned up when the app closes).

Tags

graphics, marker, picture, symbol, visualization

Sample Code

Picture_Marker_Symbol.qml
                                                                                                        
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
// [WriteFile Name=Picture_Marker_Symbol, Category=DisplayInformation]
// [Legal]
// Copyright 2016 Esri.

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]

import QtQuick 2.6
import Esri.ArcGISExtras 1.1
import Esri.ArcGISRuntime 100.12

Rectangle {
    clip: true
    width: 800
    height: 600

    readonly property url dataPath: System.userHomePath + "/ArcGIS/Runtime/Data"

    ViewpointExtent {
        id: startingVP

        extent: Envelope {
            xMin: -229100
            xMax: -223300
            yMin: 6550700
            yMax: 6552100
            spatialReference: SpatialReference { wkid: 3857 }
        }
    }

    // Map view UI presentation at top
    MapView {
        id: mapView
        anchors.fill: parent

        Map {
            Basemap {
                initStyle: Enums.BasemapStyleArcGISTopographic
            }

            initialViewpoint: startingVP
        }

        GraphicsOverlay {

            // create Campsite Symbol from URL
            Graphic {

                Point {
                    x: -228835
                    y: 6550763
                    spatialReference: SpatialReference { wkid: 3857 }
                }

                PictureMarkerSymbol {
                    url: "https://sampleserver6.arcgisonline.com/arcgis/rest/services/Recreation/FeatureServer/0/images/e82f744ebb069bb35b234b3fea46deae"
                    width: 38.0
                    height: 38.0
                }
            }

            // create blue symbol from local resource
            Graphic {

                Point {
                    x: -223560
                    y: 6552021
                    spatialReference: SpatialReference { wkid: 3857 }
                }

                PictureMarkerSymbol {
                    url: "qrc:/Samples/DisplayInformation/Picture_Marker_Symbol/blue_symbol.png"
                    width: 80.0
                    height: 80.0
                }
            }

            // create orange symbol from file path
            Graphic {

                Point {
                    x: -226773
                    y: 6550477
                    spatialReference: SpatialReference { wkid: 3857 }
                }

                PictureMarkerSymbol {
                    url: dataPath + "/symbol/orange_symbol.png"
                    width: 64.0
                    height: 64.0
                }
            }
        }
    }
}

Your browser is no longer supported. Please upgrade your browser for the best experience. See our browser deprecation post for more details.