C # create detailed entire process (with comments) of eagleeye instance code

AxMapControl1 is the main control and axMapControl2 is the eagleeye control.

Clear Event Response

1. eagleeye map resource Loading

Copy codeThe Code is as follows: privatevoid axmapcontrolpoliconmapreplaced (object sender, IMapControlEvents2_OnMapReplacedEvent e)

{

// When the map of the master Map Display Control is changed, the map in the eagleeye will also be changed.

AxMapControl2.LoadMxFile (axMapControl1.DocumentFilename );

AxMapControl2.Extent = axMapControl2.FullExtent;

}

2. Draw an eagleeye rectangleCopy codeThe Code is as follows: private void axmapcontrolpoliconextentupdated (object sender, IMapControlEvents2_OnExtentUpdatedEvent e)

{

// Get a new range

IEnvelope pEnv = (IEnvelope) e. newEnvelope;

IGraphicsContainer pGra = axMapControl2.Map as IGraphicsContainer;

IActiveView pAv = pGra as IActiveView;

// Clear any graphic elements in axMapControl2 before drawing

PGra. DeleteAllElements ();

IRectangleElement pRectangleEle = new RectangleElementClass ();

IElement pEle = pRectangleEle as IElement;

PEle. Geometry = pEnv;

// Set the red line in the eagleeye chart

IRgbColor pColor = new RgbColorClass ();

PColor. red= 255;

PColor. Green = 0;

PColor. Blue = 0;

PColor. Transparency = 255;

// Generate a line symbol object

ILineSymbol pOutline = new SimpleLineSymbolClass ();

POutline. Width = 2;

POutline. Color = pColor;

// Set the color attribute

PColor = new RgbColorClass ();

PColor. red= 255;

PColor. Green = 0;

PColor. Blue = 0;

PColor. Transparency = 0;

// Set the attributes of the fill symbol

IFillSymbol pFillSymbol = new SimpleFillSymbolClass ();

PFillSymbol. Color = pColor;

PFillSymbol. Outline = pOutline;

IFillShapeElement pFillShapeEle = pEle as IFillShapeElement;

PFillShapeEle. Symbol = pFillSymbol;

PGra. AddElement (IElement) pFillShapeEle, 0 );

PAv. PartialRefresh (esriViewDrawPhase. esriViewGraphics, null, null );

}

3. InteractionCopy codeThe Code is as follows: private void axMapControl2_OnMouseDown (object sender, IMapControlEvents2_OnMouseDownEvent e)

{

IPoint pPt = new PointClass ();

PPt. PutCoords (e. mapX, e. mapY );

// Change the view range of the Main Control

AxMapControl1. CenterAt (pPt );

}