public void StartDrawing(Graphics dc, int drawBuffer)
{
mDc = dc;
DrawBufferFlag = drawBuffer;
IsStartDrawing = true;
if (DrawBufferFlag == 0)
{
Control mapCtrl = Control.FromHandle(Handle);
if (mStaticImage == null)
{
mClipRectangle = mapCtrl.ClientRectangle;
mStaticImage = new Bitmap(mClipRectangle.Width, mClipRectangle.Height);
m_staticDirty = true;
}
System.Drawing.Drawing2D.SmoothingMode m_smoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
//绘制在背景图片上
mBitMapGc = Graphics.FromImage(mStaticImage);
mBitMapGc.SmoothingMode = m_smoothingMode;
mBitMapGc.Clear(Color.White);
//m_model.BackgroundLayer.Draw(dcStatic, r);
//if (m_model.GridLayer.Enabled)
// m_model.GridLayer.Draw(dcStatic, r);
//绘制十字丝
RgPoint rCenterPoint = new RgPoint(0, 0);
PointF nullPoint = DisplayTransformation.ToScreen(rCenterPoint);
mBitMapGc.DrawLine(Pens.Blue, nullPoint.X - 10, nullPoint.Y, nullPoint.X + 10, nullPoint.Y);
mBitMapGc.DrawLine(Pens.Blue, nullPoint.X, nullPoint.Y - 10, nullPoint.X, nullPoint.Y + 10);
}
}
public void DrawPoint(RgPoint pt, Pen pen)
{
if (IsStartDrawing == false)
{
return;
}
PointF ptscreen = mDisplayTransformation.ToScreen(pt);
if (DrawBufferFlag == 0)
{
if (mBitMapGc != null)
{
// mBitMapGc.DrawEllipse(pen, ptscreen.X, ptscreen.Y, 2, 2);
mBitMapGc.DrawRectangle(pen, ptscreen.X, ptscreen.Y, 3, 3);
//SizeF size = new SizeF(4f, 4f);
//RectangleF rect = new RectangleF(ptscreen, size);
//mBitMapGc.DrawEllipse(pen, rect);
}
}
else
{
if (mDc != null)
{
mDc.DrawEllipse(pen, ptscreen.X, ptscreen.Y, 1, 1);
}
}
}
void mMapControl_MouseMove(object sender, MouseEventArgs e)
{
RgPoint pt = mMapControl.ScreenDisplay.DisplayTransformation.ToUnit(new PointF(e.X, e.Y));
x = Math.Round(pt.X * MillmeteresPerInch, 3);
y = Math.Round(pt.Y * MillmeteresPerInch, 3);
}
/// <summary>
/// 设置画布到屏幕的中心
/// </summary>
/// <param name="rPoint">直角坐标系坐标</param>
public void SetCenter(RgPoint unitPoint)
{
//将unitPoint点对应到屏幕上point
PointF point = mScreenDisplay.DisplayTransformation.ToScreen(unitPoint);
m_lastCenterPoint = unitPoint;
//将unitPoint偏移到屏幕中心
SetCenterScreen(point, false);
}
void mPanel_MouseMove(object sender, MouseEventArgs e)
{
if (CurrentTool != null)
{
CurrentTool.OnMouseMove(e.X, e.Y);
}
RgPoint pt = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(e.X, e.Y));
Debug.Write(string.Format("X:{0}mm Y:{1}mm", pt.X * 25.4, pt.Y * 25.4));
}
public RgPoint CenterPointUnit()
{
RgPoint p1 = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(0, 0));
RgPoint p2 = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(this.ClientRectangle.Width, this.ClientRectangle.Height));
RgPoint center = new RgPoint();
center.X = (p1.X + p2.X) / 2;
center.Y = (p1.Y + p2.Y) / 2;
return(center);
}
private void UcMapControl_Resize(object sender, EventArgs e)
{
if (m_lastCenterPoint != null && Width != 0)
{
SetCenterScreen(mScreenDisplay.DisplayTransformation.ToScreen(m_lastCenterPoint), false);
}
m_lastCenterPoint = CenterPointUnit();
(mScreenDisplay as RGeos.Display.ScreenDisplay).UpdateWindow();
Invalidate();
}
public override void Draw(IScreenDisplay display)
{
IScreenDisplayDraw displayDraw = display as IScreenDisplayDraw;
if (ShapeType == RgEnumShapeType.RgPoint)
{
for (int i = 0; i < mGeometries.Count; i++)
{
RGeos.Geometries.Point pt = mGeometries[i] as RGeos.Geometries.Point;
if (pt != null)
{
displayDraw.DrawPoint(pt, new Pen(Color.Red));
}
}
}
if (ShapeType == RgEnumShapeType.RgLineString)
{
for (int i = 0; i < mGeometries.Count; i++)
{
LineString pt = mGeometries[i] as LineString;
if (pt != null)
{
displayDraw.DrawLineString(pt, new Pen(Color.Red));
// display as r
}
}
}
if (ShapeType == RgEnumShapeType.RgMultiLineString)
{
for (int i = 0; i < mGeometries.Count; i++)
{
MultiLineString pt = mGeometries[i] as MultiLineString;
if (pt != null)
{
displayDraw.DrawMultiLineString(pt, new Pen(Color.Red));
}
}
}
if (ShapeType == RgEnumShapeType.RgPolygon)
{
for (int i = 0; i < mGeometries.Count; i++)
{
Polygon pt = mGeometries[i] as Polygon;
if (pt != null)
{
Pen mPen = new Pen(Color.Red);
Brush brush = new SolidBrush(Color.Blue);
displayDraw.DrawPolygon(pt, brush, mPen, false);
}
}
}
}
protected override void OnMouseWheel(MouseEventArgs e)
{
System.Drawing.Point point = this.PointToClient(Control.MousePosition); //放大中心点屏幕坐标
RgPoint p = mScreenDisplay.DisplayTransformation.ToUnit(point); //对应的当前Zoom下的世界坐标
float wheeldeltatick = 120;
float zoomdelta = (1.25f * (Math.Abs(e.Delta) / wheeldeltatick));
if (e.Delta < 0)
{
mScreenDisplay.DisplayTransformation.Zoom = mScreenDisplay.DisplayTransformation.Zoom / zoomdelta;
}
else
{
mScreenDisplay.DisplayTransformation.Zoom = mScreenDisplay.DisplayTransformation.Zoom * zoomdelta;
}
SetCenterScreen(mScreenDisplay.DisplayTransformation.ToScreen(p), false);//放大后，得到同一个世界坐标对应的屏幕坐标
Invalidate(true);
base.OnMouseWheel(e);
}
public void DrawLine(RGeos.Geometries.Point p1, RGeos.Geometries.Point p2, Pen pen)
{
if (IsStartDrawing == false)
{
return;
}
if (DrawBufferFlag == 0)
{
PointF v1 = mDisplayTransformation.ToScreen(p1);
PointF v2 = mDisplayTransformation.ToScreen(p2);
if (mBitMapGc != null)
{
mBitMapGc.DrawLine(pen, v1, v2);
}
}
else
{
PointF v1 = mDisplayTransformation.ToScreen(p1);
PointF v2 = mDisplayTransformation.ToScreen(p2);
mDc.DrawLine(pen, v1, v2);
}
}
public override void OnMouseDown(int x, int y, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
n++;
if (n <= 1)
{
line = new LineString();
RgPoint pt = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(x, y));
line.Vertices.Add(pt);
lastPoint1Unit = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(x, y));
lastPoint2 = new PointF(x, y);
}
else
{
RgPoint ptNext = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(x, y));
line.Vertices.Add(ptNext);
lastPoint1Unit = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(x, y));
lastPoint2 = new PointF(x, y);
mScreenDisplay.NewObject = line;
mMapCtrl.Refresh();
}
}
else
{
Carto.FetureLayer featurelyr = mMapCtrl.Map.CurrentLayer as Carto.FetureLayer;
if (featurelyr != null && featurelyr.ShapeType == RgEnumShapeType.RgLineString)
{
featurelyr.mGeometries.Add(line);
}
n = 0;
mScreenDisplay.NewObject = null;
mMapCtrl.Refresh();
}
}
public override void OnMouseMove(int x, int y)
{
if (n < 1)
{
}
else
{
lastPoint1 = mScreenDisplay.DisplayTransformation.ToScreen(lastPoint1Unit);
double xmin = Math.Min(lastPoint1.X, lastPoint2.X);
double ymin = Math.Min(lastPoint1.Y, lastPoint2.Y);
double w = Math.Abs(lastPoint1.X - lastPoint2.X);
double h = Math.Abs(lastPoint1.Y - lastPoint2.Y);
Rectangle invalidaterect = new Rectangle((int)xmin, (int)ymin, (int)w, (int)h);
invalidaterect.Inflate(2, 2);
//擦除上次的范围
(mScreenDisplay as ScreenDisplay).RepaintStatic(invalidaterect);
lastPoint2 = new PointF(x, y);
RgPoint p1 = lastPoint1Unit;
RgPoint p2 = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(x, y));
mScreenDisplay.StartDrawing(mMapCtrl.CreateGraphics(), 1);
mScreenDisplayDraw.DrawLine(p1, p2, Pens.Blue);
mScreenDisplay.FinishDrawing();
}
}
public override void OnMouseMove(int x, int y)
{
if (n == 1)
{
}
if (n == 2)
{
j++;
tmpVertices = new List <RGeos.Geometries.Point>();
RGeos.Geometries.Point P0 = vertices[0];
RGeos.Geometries.Point P1 = vertices[1];
RGeos.Geometries.Point pt = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(x, y));
RGeos.Geometries.Point P2 = pt;
tmpVertices.Add(P0);
tmpVertices.Add(P1);
tmpVertices.Add(P2);
LinearRing tmpLine = new LinearRing(tmpVertices);
tempPolygon.ExteriorRing = tmpLine;
if (j == 1)
{
BoundingBox box = tempPolygon.GetBoundingBox();
PointF lowLeft = mScreenDisplay.DisplayTransformation.ToScreen(box.TopLeft);
PointF topRight = mScreenDisplay.DisplayTransformation.ToScreen(box.BottomRight);
double xmin = lowLeft.X;
double ymin = lowLeft.Y;
double w = Math.Abs(topRight.X - lowLeft.X);
double h = Math.Abs(topRight.Y - lowLeft.Y);
Rectangle invalidaterect = new Rectangle((int)xmin, (int)ymin, (int)w, (int)h);
invalidaterect.Inflate(2, 2);
(mScreenDisplay as ScreenDisplay).RepaintStatic(invalidaterect);
j = 0;
}
SolidBrush brush = new SolidBrush(Color.Blue);
Pen pen = new Pen(brush);
mScreenDisplay.StartDrawing(mMapCtrl.CreateGraphics(), 1);
mScreenDisplayDraw.DrawPolygon(tempPolygon, brush, pen, false);
mScreenDisplay.FinishDrawing();
}
else if (n > 2)
{
BoundingBox box = tempPolygon.GetBoundingBox();
PointF lowLeft = mScreenDisplay.DisplayTransformation.ToScreen(box.TopLeft);
PointF topRight = mScreenDisplay.DisplayTransformation.ToScreen(box.BottomRight);
double xmin = lowLeft.X;
double ymin = lowLeft.Y;
double w = Math.Abs(topRight.X - lowLeft.X);
double h = Math.Abs(topRight.Y - lowLeft.Y);
Rectangle invalidaterect = new Rectangle((int)xmin, (int)ymin, (int)w, (int)h);
invalidaterect.Inflate(2, 2);
(mScreenDisplay as ScreenDisplay).RepaintStatic(invalidaterect);
tmpVertices = new List <RGeos.Geometries.Point>();
RGeos.Geometries.Point P0 = vertices[0];
RGeos.Geometries.Point P1 = vertices[n - 1];
RGeos.Geometries.Point pt = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(x, y));
RGeos.Geometries.Point P2 = pt;
tmpVertices.Add(P0);
tmpVertices.Add(P1);
tmpVertices.Add(P2);
LinearRing tmpLine = new LinearRing(tmpVertices);
tempPolygon.ExteriorRing = tmpLine;
SolidBrush brush = new SolidBrush(Color.Blue);
SolidBrush brush2 = new SolidBrush(Color.Pink);
Pen pen = new Pen(brush2);
mScreenDisplay.StartDrawing(mMapCtrl.CreateGraphics(), 1);
mScreenDisplayDraw.DrawPolygon(tempPolygon, brush, pen, false);
mScreenDisplay.FinishDrawing();
}
}
public override void OnMouseDown(int x, int y, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
n++;
if (n == 1)
{
RGeos.Geometries.Point pt = mScreenDisplay.DisplayTransformation.ToUnit(new PointF(x, y));
RGeos.Geometries.Point P0 = new RGeos.Geometries.Point(pt.X, pt.Y);
RGeos.Geometries.Point P1 = new RGeos.Geometries.Point(pt.X, pt.Y);
RGeos.Geometries.Point P2 = new RGeos.Geometries.Point(pt.X, pt.Y);
vertices.Add(P0);
vertices.Add(P1);
vertices.Add(P2);
line = new LinearRing(vertices);
}
else if (n == 2)
{
PointF p2 = new PointF(x, y);
RGeos.Geometries.Point pt1 = vertices[0];
RGeos.Geometries.Point pt2 = mScreenDisplay.DisplayTransformation.ToUnit(p2);
vertices[1] = pt2;
mScreenDisplay.StartDrawing(mMapCtrl.CreateGraphics(), 1);
mScreenDisplayDraw.DrawLine(pt1, pt2, Pens.Blue);
mScreenDisplay.FinishDrawing();
//n = 0;
}
else if (n == 3)
{
PointF p1 = new PointF(x, y);
RGeos.Geometries.Point pt = mScreenDisplay.DisplayTransformation.ToUnit(p1);
vertices[2] = pt;
polygon.ExteriorRing = line;
if (line != null)
{
SolidBrush brush = new SolidBrush(Color.Blue);
Pen pen = new Pen(brush);
mScreenDisplay.NewObject = polygon;
mMapCtrl.Refresh();
}
}
else
{
PointF p1 = new PointF(x, y);
RGeos.Geometries.Point pt = mScreenDisplay.DisplayTransformation.ToUnit(p1);
RGeos.Geometries.Point P4 = pt;
vertices.Add(P4);
SolidBrush brush = new SolidBrush(Color.Blue);
Pen pen = new Pen(brush);
mScreenDisplay.NewObject = polygon;
mMapCtrl.Refresh();
}
}
else if (e.Button == MouseButtons.Right)
{
Carto.FetureLayer featurelyr = mMapCtrl.Map.CurrentLayer as Carto.FetureLayer;
if (featurelyr != null && featurelyr.ShapeType == RgEnumShapeType.RgPolygon)
{
featurelyr.mGeometries.Add(polygon);
}
vertices = new List <RGeos.Geometries.Point>();
polygon = new Polygon();
tempPolygon = new Polygon();
mScreenDisplay.NewObject = null;
n = 0;
mMapCtrl.Refresh();
}
}
