Latest Contributions by MichaelGreene2

I'm trying to write a simple function that draws ellipses at certain device locations as seen in my code below.   void theellipse(const mn:: Point deviceLocation,mn::SceneGraphicsView* m_sceneView,QColor lineColor,mn::GraphicsOverlay* ellipseGraphicOverlay, MapRay *thisF) {     const mn::Point normalizedPt = mn::GeometryEngine::normalizeCentralMeridian(deviceLocation);     mn::GeodesicEllipseParameters parameters(/*angle*/90,mn::AngularUnit(mn::AngularUnitId::Degrees),normalizedPt,                    /*unit*/ mn::LinearUnit(mn::LinearUnitId::Kilometers),                   /*maxpointCount*/10,                  /*maxSegmentLength*/10000,                 /*geometryType*/mn::GeometryType::Polygon,                /*SemiAxislength*/120,               /*SemiAxisLength*/210); ellipseGraphicOverlay->sceneProperties().setSurfacePlacement(mn::SurfacePlacement::Draped); m_sceneView->graphicsOverlays()->append(ellipseGraphicOverlay); mn::PolygonBuilder PolygonBuilder(m_sceneView->spatialReference()); PolygonBuilder.addPoint(deviceLocation); mn::Polygon ellipse1= mn::GeometryEngine::ellipseGeodesic(parameters); It's not clear for me through looking at documentation how to turn geodesic ellipse parameters into scene symbols that are graphic layers.  Any help would be much appreciated. Thanks. ~mike ... View more

Hi QT SDK community, I'm looking to use a Unique Value Renderer in order to display different colored lines connecting from the ground to points in the sky. I have read ESRI's webpage about different rendering processes, and I think the Unique Value Renderer is what I need to be using. I've created a unique value denoted as "QString uniqueString", which I think I need as a unique ID in order to render properly. uniqueString contains unique values to the objects in the sky that I am trying to project lines from. "Qcolor lineColor" contain the unique colors that I want the lines to be. Below is the code I am using that does not compile. void addLineOfSightToMapFunc(Point deviceLocation, Point satLocation,Esri::ArcGISRuntime::SceneGraphicsView* m_sceneView, QColor lineColor,QString uniqueString,mn::GraphicsOverlay* lineGraphicOverlay, MapRay *thisF ) {     mn::UniqueValueRenderer* LOS= new mn:: UniqueValueRenderer(thisF);     // create a graphics overlay for the lines     lineGraphicOverlay->sceneProperties().setSurfacePlacement(mn::SurfacePlacement::Absolute);     lineGraphicOverlay->setSceneProperties(mn::LayerSceneProperties(mn::SurfacePlacement::Absolute));     // add the overlay to the mapview     m_sceneView->graphicsOverlays()->append(LOS);     // create line geometry     mn::PolygonBuilder polylineBuilder(m_sceneView->spatialReference());     // build the polyline     polylineBuilder.addPoint(deviceLocation.x,deviceLocation.y,deviceLocation.z);     polylineBuilder.addPoint(satLocation.x,satLocation.y,satLocation.z);     // tells renderer what type of symbol to use.     mn::SimpleLineSymbol* sls = new mn::SimpleLineSymbol(mn::SimpleLineSymbolStyle::Solid, lineColor, 5, thisF);     // creates graphic from the polylineBuilder     mn::Graphic* lineGraphic = new mn::Graphic(polylineBuilder.toGeometry(), thisF);     // set the renderer of the graphic overlay to be the line symbol     lineGraphicOverlay->setRenderer(UniqueValueRenderer);     // add the graphic to the overlay     lineGraphicOverlay->graphics()->append(lineGraphic); } Any help would be greatly appreciated. ... View more

This is a general question about the best methods to draw features that update within a graphics layer.  For instance, I am interested in drawing a line of sight line that changes direction through time as I move a Q-slider. Should I have a pointer to a graphics overlay that I create a new instance of each time I want to redraw the line?  Or is there a more elegant method for redrawing on a map? ... View more