public override void MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
Panel panel = (Panel)sender;
this.FromPoint = new Point(e.X, e.Y);
// draw point
MG_BaseDisplay.FillPoint(panel.CreateGraphics(), brush, this.FromPoint, MG_Constant.PointRadius);
// screen to map
this.MapPoint = MG_BaseRender.ToPoint(this.FromPoint, this.MapView);
//1 create a feature
// 1.1 set geometry
this.Feature.SetGeometry(this.MapPoint);
// 1.2 set field value
for (int i = 0; i < this.Feature.GetFieldSet().Count(); i++)
{
this.Feature.SetValue(i, null);
}
//2 create a new feature
MG_Feature newFeature = new MG_Feature(this.Feature);
//3 add new feature to layer
this.Layer.AddFeature(newFeature);
//4 clear data to store the next point
this.MapPoint.Clear();
}
}
public override void MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
this.IsMouseDown = false;
// screen point to map point
MG_LineString MapLineString = new MG_LineString();
for (int i = 0; i < this.LineString.Count(); i++)
{
MG_Point screenPoint = this.LineString.GetAt(i);
Point screen = new Point((int)screenPoint.x, (int)screenPoint.y);
MG_Point mapPoint = MG_BaseRender.ToPoint(screen, this.MapView);
MapLineString.Add(mapPoint);
}
MG_LineString MapLineStringOther = new MG_LineString();
for (int i = 0; i < this.LineStringOther.Count(); i++)
{
MG_Point screenPoint = this.LineStringOther.GetAt(i);
Point screen = new Point((int)screenPoint.x, (int)screenPoint.y);
MG_Point mapPoint = MG_BaseRender.ToPoint(screen, this.MapView);
MapLineStringOther.Add(mapPoint);
}
//1 create a feature
// 1.1 set geometry
this.Feature.SetGeometry(MapLineString);
// 1.2 set field value
for (int i = 0; i < this.Feature.GetFieldSet().Count(); i++)
{
this.Feature.SetValue(i, null);
}
//2 create a new feature
MG_Feature newFeature1 = new MG_Feature(this.Feature);
//3 add new feature to layer
this.Layer.AddFeature(newFeature1);
//4 clear data to store the next linestring
this.LineString.Clear();
//1 create a feature
// 1.1 set geometry
this.Feature.SetGeometry(MapLineStringOther);
// 1.2 set field value
for (int i = 0; i < this.Feature.GetFieldSet().Count(); i++)
{
this.Feature.SetValue(i, null);
}
//2 create a new feature
MG_Feature newFeature2 = new MG_Feature(this.Feature);
//3 add new feature to layer
this.Layer.AddFeature(newFeature2);
//4 clear data to store the next linestring
this.LineStringOther.Clear();
}
}
public override void MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
this.IsMouseDown = true;
Panel panel = (Panel)sender;
if (this.Step == 0)
{
this.Step = 1;
this.FromPoint = new Point(e.X, e.Y);
// store map point
MG_Point mapPoint = MG_BaseRender.ToPoint(this.FromPoint, this.MapView);
this.LineString.Add(mapPoint);
}
else if (this.Step == 1)
{
this.ToPoint = new Point(e.X, e.Y);
// repeat same pattern
this.FromPoint = this.ToPoint;
// store map point
MG_Point mapPoint = MG_BaseRender.ToPoint(this.ToPoint, this.MapView);
this.LineString.Add(mapPoint);
}
}
}
private static MG_LineString AsLineString(Geometry g)
{
MG_LineString lineString = new MG_LineString();
int pointCount = g.GetPointCount();
for (int i = 0; i < pointCount; i++)
{
MG_Point point = new MG_Point(g.GetX(i), g.GetY(i));
lineString.Add(point);
}
return(lineString);
}
private static MG_MultiPoint AsMultiPoint(Geometry g)
{
MG_MultiPoint multiPoint = new MG_MultiPoint();
int geometryCount = g.GetGeometryCount();
for (int i = 0; i < geometryCount; i++)
{
MG_Point point = AsPoint(g.GetGeometryRef(i));
multiPoint.Add(point);
}
return(multiPoint);
}
public override void MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
this.IsMouseDown = false;
Panel panel = (Panel)sender;
if (this.Step == 0)
{
}
else if (this.Step == 1)
{
}
else if (this.Step == 2)
{
// add last point
this.Point3 = new Point(e.X, e.Y);
MG_Point mapPoint3 = MG_BaseRender.ToPoint(Point3, this.MapView);
this.LineString.Add(mapPoint3);
// add first point again(same to first point)
MG_Point firstPoint = MG_BaseRender.ToPoint(this.FromPoint, this.MapView);
this.LineString.Add(firstPoint);
// add to polygon
this.Polygon.Add(this.LineString);
//1 create a feature
// 1.1 set geometry
this.Feature.SetGeometry(this.Polygon);
// 1.2 set field value
for (int i = 0; i < this.Feature.GetFieldSet().Count(); i++)
{
this.Feature.SetValue(i, null);
}
//2 create a new feature
MG_Feature newFeature = new MG_Feature(this.Feature);
//3 add new feature to layer
this.Layer.AddFeature(newFeature);
//4 clear data to store the next linestring
this.Polygon.Clear();
this.LineString.Clear();
// 5 reset control params
this.Step = 0;
this.FromPoint = Point.Empty;
this.ToPoint = Point.Empty;
this.Point3 = Point.Empty;
}
}
}
public static MG_Point ToPoint(Point point, MG_MapView mapview)
{
MG_Point mp;
if (mapview != null)
{
mp = mapview.Screent2Map(point);
}
else
{
mp = new MG_Point(point.X, point.Y);
}
return(mp);
}
private static Point AsPoint(MG_Point point, MG_MapView mapview)
{
Point sp;
if (mapview != null)
{
sp = mapview.Map2Screen(point);
}
else
{
sp = new Point((int)point.x, (int)point.y);
}
return(sp);
}
public static void RenderLineString(Graphics g, Pen pen, MG_MapView mapview, MG_LineString lineString)
{
int count = lineString.Count();
if (count < 2)
{
return;
}
Point[] points = new Point[count];
for (int i = 0; i < count; i++)
{
MG_Point mp = lineString.GetAt(i);
points[i] = AsPoint(mp, mapview);
}
DrawLineString(g, pen, points);
}
public override void MouseUp(object sender, MouseEventArgs e)
{
if (this.IsMouseDown)
{
this.IsMouseDown = false;
Panel panel = (Panel)sender;
this.ToPoint = new Point(e.X, e.Y);
// pan map(screen point --->map point)
MG_Point mpFrom = MG_BaseRender.ToPoint(this.FromPoint, this.MapView);
MG_Point mpTo = MG_BaseRender.ToPoint(this.ToPoint, this.MapView);
double xoff = mpFrom.x - mpTo.x;
double yoff = mpFrom.y - mpTo.y;
this.MapView.XYoff(xoff, yoff);
this.CurrentMap.AddZoomToHistory(this.MapView);
panel.Refresh();
}
}
public static void RenderPolygon(Graphics g, Pen pen, MG_MapView mapview, MG_Polygon polygon)
{
int countLineString = polygon.Count();
for (int i = 0; i < countLineString; i++)
{
MG_LineString lineString = polygon.GetAt(i);
int countPoint = lineString.Count();
if (countPoint < 3)
{
return;
}
Point[] points = new Point[countPoint];
for (int j = 0; j < countPoint; j++)
{
MG_Point mp = lineString.GetAt(j);
points[j] = AsPoint(mp, mapview);
}
//FillPolygon(g, brush, points);
//Pen pen = new Pen(Color.Red, 1);
DrawPolygon(g, pen, points);
}
}
public MG_ToolDrawPoint(MG_Layer layer, MG_MapView mapview)
: base(MG_ToolType.Tool_DrawPoint, layer, mapview)
{
this.MapPoint = new MG_Point();
}
public static void RenderPoint(Graphics g, Brush brush, int radius, MG_MapView mapview, MG_Point point)
{
//int realValue = GetRealValue(radius, mapview);
//if (realValue < MG_Constant.PointRadius)
//{
// realValue = MG_Constant.PointRadius;
//}
Point sp = AsPoint(point, mapview);
FillPoint(g, brush, sp, radius);
}
