public Form()
{
InitializeComponent();
Line OX = new Line();
OX.BeginPoint = new GEOPoint(-this.Width / 2, 0);
OX.EndPoint = new GEOPoint(this.Width / 2, 0);
Line OY = new Line();
OY.BeginPoint = new GEOPoint(0, this.Height / 2);
OY.EndPoint = new GEOPoint(0, -this.Height / 2);
var pointX = new Point();
pointX.Style = new PointStyle("Arial", Convert.ToByte('X'), 14, System.Drawing.Color.Black);
pointX.Position = new GEOPoint(this.Width / 2 - 40, pointX.Style.SymbolSize);
var pointY = new Point();
pointY.Style = new PointStyle("Arial", Convert.ToByte('Y'), 14, System.Drawing.Color.Black);
pointY.Position = new GEOPoint(pointX.Style.SymbolSize, this.Height / 2 - 60);
var polyLine = new PolyLine();
polyLine.AddNode(new GEOPoint(300, 200));
polyLine.AddNode(new GEOPoint(700, 100));
polyLine.AddNode(new GEOPoint(200, -500));
polyLine.AddNode(new GEOPoint(-800, 75));
var polygon = new Polygon();
polygon.AddNode(new GEOPoint(50, 0));
polygon.AddNode(new GEOPoint(200, 0));
polygon.AddNode(new GEOPoint(200, 100));
polygon.AddNode(new GEOPoint(50, 100));
var layer1 = new Layer();
layer1.AddMapObject(OX);
layer1.AddMapObject(OY);
layer1.AddMapObject(pointX);
layer1.AddMapObject(pointY);
layer1.AddMapObject(polyLine);
layer1.AddMapObject(polygon);
mapControl.AddLayer(layer1);
mapControl.CurrentTool = Tool.Select;
CurrentToolBtn = selectBtn;
CurrentToolBtn.Checked = true;
}
private void Map_MouseMove(object sender, MouseEventArgs e)
{
switch (CurrentTool)
{
case Tool.Select:
break;
case Tool.Pan:
if (IsMouseDown)
{
double dx, dy;
dx = MouseDownPosition.X - e.X;
dy = MouseDownPosition.Y - e.Y;
MapCenter.X += dx / MapScale;
MapCenter.Y -= dy / MapScale;
MouseDownPosition = e.Location;
Refresh();
}
break;
case Tool.ZoomIn:
if (IsMouseDown)
{
Refresh();
var g = CreateGraphics();
var frame = new PolyLine();
frame.AddNode(ScreenToMap(new System.Drawing.Point(MouseDownPosition.X, MouseDownPosition.Y)));
frame.AddNode(ScreenToMap(new System.Drawing.Point(e.X, MouseDownPosition.Y)));
frame.AddNode(ScreenToMap(new System.Drawing.Point(e.X, e.Y)));
frame.AddNode(ScreenToMap(new System.Drawing.Point(MouseDownPosition.X, e.Y)));
frame.AddNode(ScreenToMap(new System.Drawing.Point(MouseDownPosition.X, MouseDownPosition.Y)));
cosmeticLayer.Clear();
cosmeticLayer.AddMapObject(frame);
}
break;
case Tool.ZoomOut:
break;
}
}