Create polygon through JSON with proper symbol

rsharma — Thu, 30 Jul 2020 06:42:01 GMT

Hi i m naive to arcgis appstudio and trying to create multiple polygons through JSON set of vertices, i have my vetices in json format in db like below, but my geometry symbol do not support it.

Kindly guide in right direction.

Or my question could be like.. how to create a polygon through JSON data

import QtQuick 2.7

import QtQuick.Controls 2.1

import QtQuick.Controls.Material 2.1

import QtQuick.XmlListModel 2.0

import ArcGIS.AppFramework 1.0

import Esri.ArcGISRuntime 100.2

Item {

    //! [GOSymbols MapView]

    // Map view UI presentation at top

    MapView {

        id: mapView

        anchors.fill: parent

        rotationByPinchingEnabled: true

        zoomByPinchingEnabled: true

        Map {

            BasemapOceans {}

            initialViewpoint: viewPoint

        GraphicsOverlay {

            id: graphicsOverlay

    //! [GOSymbols MapView]

    // the center of the mapview

    ViewpointCenter {

        id: viewPoint

        center: Point {

            x: 172.49307355493

            y: -43.4810759934974

            spatialReference: SpatialReference {

                wkid: 4326

        targetScale: 288895.277144

    //! [GOSymbol line symbol]

    SimpleFillSymbol {

        id: fillSymbol

        style: Enums.SimpleFillSymbolStyleSolid

        color: Qt.rgba(1, 1, 0, 0.4)

        SimpleLineSymbol {

            style: Enums.SimpleLineSymbolStyleSolid

            color: "blue"

            width: 2.0

             antiAlias: true

    //! [GOSymbol line symbol]

    // add all the graphics to the graphics overlay

    Component.onCompleted: {

      // add boat route

        graphicsOverlay.graphics.append(createGraphic(createBoundaryRoute(), fillSymbol));

        // add the nesting ground

    //! [GOSymbol createGraphic]

    // create and return a graphic

    function createGraphic(geometry, symbol) {

        var graphic = ArcGISRuntimeEnvironment.createObject("Graphic");

        graphic.geometry = geometry;

        graphic.symbol = symbol;

        return graphic;

    //! [GOSymbol createGraphic]

    //! [GOSymbol createBoatRoute]

    // create the boat route

    function createBoundaryRoute() {

        // create polygine using json

        return ArcGISRuntimeEnvironment.createObject("Polygon", {"json": boundaryJson});

    //! [GOSymbol createBoatRoute]

    //! [GOSymbol boatRouteJson]

    property var boundaryJson : {"paths":[[[172.49307355493, -43.4810759934974],

                                            [172.5030454523, -43.4334343434],

                                            [172.481307356908, -43.391075445974],

                                            [172.481307356908, -43.391075445974],

                                            [172.47307356908, -43.419075445974],[172.49307355493, -43.4810759934974]]],

                                  "spatialReference":{"wkid":4326}}

    //! [GOSymbol boatRouteJson]

Re: Create polygon through JSON with proper symbol

ErwinSoekianto — Thu, 30 Jul 2020 16:41:03 GMT

I am going to tag ArcGIS Runtime SDK for Qt‌ to see if anyone in that group knows the json format to create Polygon.

I think this must be related to how the json is supposed to be formatted.

Re: Create polygon through JSON with proper symbol

LucasDanzinger — Thu, 30 Jul 2020 18:14:49 GMT

Everything in ArcGIS Runtime that can go to/from JSON is based on the ArcGIS REST spec.

So for geometries, you can reference this doc - Geometry objects—Common Data Types | ArcGIS for Developers

For symbols, Symbol Objects—Common Data Types | ArcGIS for Developers

Re: Create polygon through JSON with proper symbol

rsharma — Tue, 04 Aug 2020 08:24:56 GMT

Thanks i was using paths in attributes instead of rings

topic Re: Create polygon through JSON with proper symbol in ArcGIS AppStudio Questions

Create polygon through JSON with proper symbol

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