Hi everyone my name is George. I'm using ArcGIS 100.0 for qt version 5.9. I want to remove graphics overlays from my map, without recreating MapView, Map and other. My application have to receive coordinates, and display them on the map. As reference I've used Simple Renderer from arcgis examples (It shows how to add and display point on the map). But i want to update position of Objects on my map during my application execution. How can I do that? Is it possible?
Simple example of what I've used, and what i want to do.
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// Create a map using the imagery basemap
m_map = new Map(Basemap::imagery(this), this);
// create graphics overlay
m_graphicsOverlay = new GraphicsOverlay();
// create red cross SimpleMarkerSymbol
SimpleMarkerSymbol* crossSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Cross, QColor("red"), 12, this);
// create renderer and set symbol to crossSymbol
SimpleRenderer* simpleRenderer = new SimpleRenderer(crossSymbol, this);
// set the SimpleRenderer to the GraphicsOverlay
m_graphicsOverlay->setRenderer(simpleRenderer);
// create points to render
Point oldFaithfulPoint(-110.828140, 44.460458, SpatialReference::wgs84());
Point cascadeGeyserPoint(-110.829004, 44.462438, SpatialReference::wgs84());
Point plumeGeyserPoint(-110.829381, 44.462735, SpatialReference::wgs84());
// create graphics using points and add them to GraphicsOverlay
addPoint(oldFaithfulPoint);
addPoint(cascadeGeyserPoint);
addPoint(plumeGeyserPoint);
// Set map to map view
m_mapView->setMap(m_map);
// set viewpoint using the two farthest points as an envelope with padding
m_mapView->setViewpointGeometry(Envelope(oldFaithfulPoint, plumeGeyserPoint), 50);
// add GraphicsOverlay to MapView
m_mapView->graphicsOverlays()->append(m_graphicsOverlay);
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For simplicity, I want to delete all objects that exist on a map, and reload map with new.