/// <summary>
/// 图像上绘制剖面图对应的直线
/// </summary>
/// <param name="canvas"></param>
/// <param name="drawArgs"></param>
private void DrawProfileLine(ICanvas canvas, IDrawArgs drawArgs)
{
if (_iserror)
{
return;
}
Graphics g = drawArgs.Graphics as Graphics;
SmoothingMode smode = g.SmoothingMode;
try
{
g.SmoothingMode = SmoothingMode.AntiAlias;
int x, y;
ICoordinateTransform coordTran = canvas.CoordTransform;
coordTran.Prj2Screen(_beginPoint.PrjX, _beginPoint.PrjY, out x, out y);
_vertices[0].X = x;
_vertices[0].Y = y;
if (!_endPoint.IsEmpty)
{
coordTran.Prj2Screen(_endPoint.PrjX, _endPoint.PrjY, out x, out y);
_vertices[1].X = x;
_vertices[1].Y = y;
}
else if (!_mousePoint.IsEmpty)
{
coordTran.Prj2Screen(_mousePoint.PrjX, _mousePoint.PrjY, out x, out y);
if (x == _vertices[0].X && y == _vertices[0].Y)
{
return;
}
if (MathHelp.DistanceLessThan(_vertices[0].X, _vertices[0].Y, x, y, 4))
{
return;
}
_vertices[1].X = x;
_vertices[1].Y = y;
}
g.DrawLines(_pofileLinePen, _vertices);
g.FillEllipse(_profileRectangleBrush, new RectangleF(_vertices[0].X - 2, _vertices[0].Y - 2, 4, 4)); //端点
}
catch (Exception ex)
{
_iserror = true;
SizeF fontSize = g.MeasureString(ex.Message, _labelFont);
RectangleF fontRect = new RectangleF(canvas.Container.Width - fontSize.Width - offsetToTopAndLeft, offsetToTopAndLeft, fontSize.Width, fontSize.Height);
g.DrawString(ex.Message, _labelFont, _profileRectangleBrush, fontRect);
}
finally
{
g.SmoothingMode = smode;
}
}
public void Render(object sender, IDrawArgs drawArgs)
{
//左上角绘制信息列表
if (_infoItems.Count == 0)
{
return;
}
Graphics g = drawArgs.Graphics as Graphics;
float x = 50;
float y = 10;
SizeF fontSize = g.MeasureString("100", _font);
int rowStep = (int)(fontSize.Height + 2);
foreach (InfoItem item in _infoItems)
{
g.DrawString(item.ToString(), _font, Brushes.Yellow, x, y);
y += rowStep;
}
ICanvas canvas = sender as ICanvas;
if (_visible)
{
ICoordinateTransform coordTran = canvas.CoordTransform;
QuickTransform qt = drawArgs.QuickTransformArgs;
//绘制拐点
foreach (InfoItem item in _infoItems)
{
int row = 0, col = 0;
double geoX, geoY;
coordTran.Geo2Prj(item.Longitude, item.Latitude, out geoX, out geoY);
coordTran.Prj2Screen(geoX, geoY, out col, out row);
g.FillEllipse(Brushes.Yellow, new RectangleF(col - 3, row - 3, 6, 6));
}
//绘制冰缘线
if (_geoItems != null)
{
foreach (CodeCell.AgileMap.Core.Feature items in _geoItems)
{
GraphicsPath path = ToGraphicsPath(items, canvas);
g.DrawPath(Pens.Red, path);
}
}
}
}
public void Render(object sender, IDrawArgs drawArgs)
{
if (!_visible)
{
return;
}
ICanvas canvas = sender as ICanvas;
ICoordinateTransform coordTran = canvas.CoordTransform;
QuickTransform qt = drawArgs.QuickTransformArgs;
Graphics g = drawArgs.Graphics as Graphics;
g.SmoothingMode = SmoothingMode.AntiAlias;
Brush blue = new SolidBrush(Color.FromArgb(60, 0, 0, 255));
Pen bluePen = new Pen(Color.Blue, 2F);
Pen redPen = new Pen(Color.Red, 3F);
redPen.DashStyle = DashStyle.Dot;
Brush redBrush = new SolidBrush(Color.Red);
Brush yelloBrush = new SolidBrush(Color.Yellow);
Font font = new Font("微软雅黑", 10.0f);
SizeF distanceFontSize = g.MeasureString("12111.0", font);
Brush textBackgroundBrush = new SolidBrush(Color.FromArgb(100, 250, 250, 250));
Pen textBackUpPen = new Pen(Color.FromArgb(125, 125, 125));
if (_previousParts != null && _previousParts.Count > 0)
{
GraphicsPath previous = new GraphicsPath();
previous.FillMode = FillMode.Winding;
for (int i = 0; i < _previousParts.Count; i++)
{
List <PointF> points = new List <PointF>();
List <CoordPoint> part = _previousParts[i];
for (int j = 0; j < part.Count; j++)
{
int col = 0, row = 0;
coordTran.Prj2Screen(part[j].X, part[j].Y, out col, out row);
points.Add(new PointF(col, row));
}
g.DrawLines(bluePen, points.ToArray());
for (int j = 0; j < points.Count; j++)
{
g.FillEllipse(yelloBrush, new RectangleF(points[j].X - 3, points[j].Y - 3, 6, 6));
if (j == 0)
{
SizeF textRect = g.MeasureString("起点", font);
g.FillRectangle(textBackgroundBrush, points[j].X + 5, points[j].Y - distanceFontSize.Height / 2, textRect.Width, textRect.Height);
g.DrawRectangle(textBackUpPen, points[j].X + 5, points[j].Y - distanceFontSize.Height / 2, textRect.Width, textRect.Height);
g.DrawString("起点", font, redBrush, points[j].X + 5, points[j].Y - distanceFontSize.Height / 2);
}
else if (j == _previousDistances[i].Length - 1)
{
SizeF textRect = g.MeasureString("总长" + FormatDistance(_previousDistances[i][j]), font);
g.FillRectangle(textBackgroundBrush, points[j].X + 5, points[j].Y - distanceFontSize.Height / 2, textRect.Width, textRect.Height);
g.DrawRectangle(textBackUpPen, points[j].X + 5, points[j].Y - distanceFontSize.Height / 2, textRect.Width, textRect.Height);
g.DrawString("总长" + FormatDistance(_previousDistances[i][j]), font, redBrush, points[j].X + 5, points[j].Y - distanceFontSize.Height / 2);
}
else
{
SizeF textRect = g.MeasureString(FormatDistance(_previousDistances[i][j]), font);
g.FillRectangle(textBackgroundBrush, points[j].X + 5, points[j].Y - distanceFontSize.Height / 2, textRect.Width, textRect.Height);
g.DrawRectangle(textBackUpPen, points[j].X + 5, points[j].Y - distanceFontSize.Height / 2, textRect.Width, textRect.Height);
g.DrawString(FormatDistance(_previousDistances[i][j]), font, redBrush, points[j].X + 5, points[j].Y - distanceFontSize.Height / 2);
}
}
}
}
List <PointF> curpoints = new List <PointF>();
if (_coordinates != null)
{
int srceenX = 0, srceenY = 0;
for (int j = 0; j < _coordinates.Count; j++)
{
coordTran.Prj2Screen(_coordinates[j].X, _coordinates[j].Y, out srceenX, out srceenY);
curpoints.Add(new PointF(srceenX, srceenY));
}
if (curpoints.Count > 1)
{
g.DrawLines(bluePen, curpoints.ToArray());
for (int j = 0; j < curpoints.Count; j++)
{
PointF pt = curpoints[j];
g.FillRectangle(redBrush, new RectangleF(pt.X - 2.5f, pt.Y - 2.5f, 5f, 5f));
if (j == 0)
{
g.DrawString("起点", font, redBrush, pt.X + 5, pt.Y - distanceFontSize.Height / 2);
}
else
{
g.DrawString(FormatDistance(_curDistances[j]), font, redBrush, pt.X + 5, pt.Y - distanceFontSize.Height / 2);
}
}
}
if (curpoints.Count > 0 && _mouseDistance > 0)// && _standBy == false && hasMouse)
{
g.DrawLine(redPen, curpoints[curpoints.Count - 1], _mousePosition);
SizeF size = g.MeasureString("文字", font);
g.DrawString(string.Format("{0}", FormatDistance(_mouseDistance)), font, redBrush, _mousePosition.X + 2, _mousePosition.Y + size.Height);
g.DrawString("双击结束", font, redBrush, _mousePosition.X + 2, _mousePosition.Y + size.Height + size.Height);
//if (_areaMode && points.Count > 1)
//{
// g.DrawLine(redPen, points[0], _mousePosition);
//}
}
//if (points.Count > 1 && _areaMode && (_previousParts == null || _previousParts.Count == 0))
//{
// if (hasMouse && !_standBy)
// {
// points.Add(_mousePosition);
// }
// if (points.Count > 2)
// {
// g.FillPolygon(blue, points.ToArray());
// }
//}
}
bluePen.Dispose();
redPen.Dispose();
redBrush.Dispose();
yelloBrush.Dispose();
font.Dispose();
textBackgroundBrush.Dispose();
textBackUpPen.Dispose();
}