/// <summary>
/// 创建取消操作
/// </summary>
/// <returns></returns>
private static ITrackCancel CreateTrackCancel()
{
ITrackCancel trackCancel = new CancelTrackerClass();
trackCancel.Reset();
trackCancel.CancelOnKeyPress = true; //点击ESC键时，中止转出
trackCancel.CancelOnClick = false;
trackCancel.ProcessMessages = true;
return(trackCancel);
}
///<summary>Flash geometry on the display.</summary>
///<param name="geometry"> The input IGeometry to flash. Supported geometry types are GeometryBag, Polygon, Polyline, Point and Multipoint.</param>
///<param name="screenDisplay">An IScreenDisplay reference</param>
///<param name="delay">An integer that is the time in milliseconds to wait.</param>
public static void FlashGeometry(IGeometry geometry, IScreenDisplay screenDisplay, int delay, int times)
{
if (geometry == null || screenDisplay == null)
{
return;
}
bool continueFlashing = true;
using (ComReleaser comReleaser = new ComReleaser())
{
ITrackCancel cancelTracker = new CancelTrackerClass();
comReleaser.ManageLifetime(cancelTracker);
screenDisplay.CancelTracker = cancelTracker;
short cacheID = screenDisplay.AddCache();
int cacheMemDC = screenDisplay.get_CacheMemDC(cacheID);
IRgbColor fillColor = new RgbColorClass();
comReleaser.ManageLifetime(fillColor);
fillColor.Green = 128;
IRgbColor lineColor = new RgbColorClass();
comReleaser.ManageLifetime(lineColor);
screenDisplay.StartDrawing(cacheMemDC, cacheID);
DrawGeometry(geometry, fillColor, lineColor, (IDisplay)screenDisplay, cancelTracker);
ESRI.ArcGIS.esriSystem.tagRECT RECT = new tagRECT();
screenDisplay.FinishDrawing();
for (int j = 0; j < times; j++)
{
if (continueFlashing == true)
{
screenDisplay.DrawCache(screenDisplay.hDC, cacheID, ref RECT, ref RECT);
if (delay > 0)
{
System.Threading.Thread.Sleep(delay);
screenDisplay.Invalidate(null, true, cacheID);
screenDisplay.UpdateWindow();
System.Threading.Thread.Sleep(delay);
}
}
}
//---------------------------------------------------------------------
screenDisplay.RemoveCache(cacheID);
cancelTracker.Reset();
}
}
/// <summary>
/// Exports the map extent.
/// </summary>
/// <param name="activeView">The active view.</param>
/// <param name="outRect">The out rect.</param>
/// <param name="sOutputPath">The output file path.</param>
/// <param name="dResolution">The d resolution.</param>
/// <returns><c>true</c> if succeed, <c>false</c> otherwise.</returns>
public bool ExportMapExtent(IActiveView activeView, Size outRect, string sOutputPath, double dResolution)
{
bool result;
try
{
if (activeView == null)
{
result = false;
}
else
{
IExport export = null;
if (sOutputPath.EndsWith(".jpg"))
{
export = new ExportJPEGClass();
}
else if (sOutputPath.EndsWith(".tif"))
{
export = new ExportTIFFClass();
}
else if (sOutputPath.EndsWith(".bmp"))
{
export = new ExportBMPClass();
}
else if (sOutputPath.EndsWith(".emf"))
{
export = new ExportEMFClass();
}
else if (sOutputPath.EndsWith(".png"))
{
export = new ExportPNGClass();
}
else if (sOutputPath.EndsWith(".gif"))
{
export = new ExportGIFClass();
}
export.ExportFileName = sOutputPath;
IEnvelope extent = activeView.Extent;
export.Resolution = dResolution;
tagRECT tagRECT = default(tagRECT);
tagRECT.left = (tagRECT.top = 0);
tagRECT.right = outRect.Width;
tagRECT.bottom = (int)((double)tagRECT.right * extent.Height / extent.Width);
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords((double)tagRECT.left, (double)tagRECT.top, (double)tagRECT.right, (double)tagRECT.bottom);
export.PixelBounds = envelope;
ITrackCancel trackCancel = new CancelTrackerClass();
export.TrackCancel = trackCancel;
trackCancel.Reset();
trackCancel.CancelOnKeyPress = true;
trackCancel.CancelOnClick = false;
trackCancel.ProcessMessages = true;
int hDC = export.StartExporting();
activeView.Output(hDC, (int)((short)export.Resolution), ref tagRECT, extent, trackCancel);
bool flag = trackCancel.Continue();
if (flag)
{
export.FinishExporting();
export.Cleanup();
}
else
{
export.Cleanup();
}
flag = trackCancel.Continue();
result = true;
}
}
catch (Exception ex)
{
string message = ex.Message;
result = false;
}
return(result);
}
//输出当前地图至指定的文件
public static void ExportActiveView(IActiveView pView, Size outRect, string outPath)
{
try
{
//参数检查
if (pView == null)
{
throw new Exception("输入参数错误,无法生成图片文件!");
}
//根据给定的文件扩展名，来决定生成不同类型的对象
ESRI.ArcGIS.Output.IExport export = null;
if (outPath.EndsWith(".jpg", StringComparison.OrdinalIgnoreCase))
{
export = new ESRI.ArcGIS.Output.ExportJPEGClass();
}
else if (outPath.EndsWith(".tiff", StringComparison.OrdinalIgnoreCase))
{
export = new ESRI.ArcGIS.Output.ExportTIFFClass();
}
else if (outPath.EndsWith(".bmp", StringComparison.OrdinalIgnoreCase))
{
export = new ESRI.ArcGIS.Output.ExportBMPClass();
}
else if (outPath.EndsWith(".emf", StringComparison.OrdinalIgnoreCase))
{
export = new ESRI.ArcGIS.Output.ExportEMFClass();
}
else if (outPath.EndsWith(".png", StringComparison.OrdinalIgnoreCase))
{
export = new ESRI.ArcGIS.Output.ExportPNGClass();
}
else if (outPath.EndsWith(".gif", StringComparison.OrdinalIgnoreCase))
{
export = new ESRI.ArcGIS.Output.ExportGIFClass();
}
SetOutputQuality(pView, 1);
export.ExportFileName = outPath;
IEnvelope pEnvelope = pView.Extent;
//导出参数
export.Resolution = 300;
tagRECT exportRect = new tagRECT();
exportRect.left = exportRect.top = 0;
exportRect.right = outRect.Width;
exportRect.bottom = (int)(exportRect.right * pEnvelope.Height / pEnvelope.Width);
ESRI.ArcGIS.Geometry.IEnvelope envelope = new ESRI.ArcGIS.Geometry.EnvelopeClass();
//输出范围
envelope.PutCoords(exportRect.left, exportRect.top, exportRect.right, exportRect.bottom);
export.PixelBounds = envelope;
//可用于取消操作
ITrackCancel pCancel = new CancelTrackerClass();
export.TrackCancel = pCancel;
pCancel.Reset();
//点击ESC键时，中止转出
pCancel.CancelOnKeyPress = true;
pCancel.CancelOnClick = false;
pCancel.ProcessMessages = true;
//获取handle
System.Int32 hDC = export.StartExporting();
//开始转出
pView.Output(hDC, (System.Int32)export.Resolution, ref exportRect, pEnvelope, pCancel);
bool bContinue = pCancel.Continue();
//捕获是否继续
if (bContinue)
{
export.FinishExporting();
export.Cleanup();
}
else
{
export.Cleanup();
}
bContinue = pCancel.Continue();
}
catch (Exception e)
{
//错误信息提示
}
}
/// <summary>
/// 输出当前地图至指定的文件
/// </summary>
/// <param name="pView"></param>
/// <param name="outPath"></param>
public void ExportMapExtent(IActiveView pView, string outPath)
{
try
{
//参数检查
if (pView == null)
{
throw new Exception("输入参数错误,无法生成图片文件!");
}
//根据给定的文件扩展名，来决定生成不同类型的对象
IExport export = null;
if (outPath.EndsWith(".jpg"))
{
export = new ExportJPEGClass();
}
else if (outPath.EndsWith(".tiff"))
{
export = new ExportTIFFClass();
}
else if (outPath.EndsWith(".bmp"))
{
export = new ExportBMPClass();
}
else if (outPath.EndsWith(".emf"))
{
export = new ExportEMFClass();
}
else if (outPath.EndsWith(".png"))
{
export = new ExportPNGClass();
}
else if (outPath.EndsWith(".gif"))
{
export = new ExportGIFClass();
}
export.ExportFileName = outPath;
IEnvelope pEnvelope = pView.Extent;
//导出参数
export.Resolution = 300;
tagRECT exportRect = new tagRECT();
exportRect.left = 0;
exportRect.top = 0;
//这里暂时固定大小
exportRect.right = 700;
exportRect.bottom = 1000;
IEnvelope envelope = new EnvelopeClass();
//输出范围
envelope.PutCoords(exportRect.left, exportRect.bottom, exportRect.right, exportRect.top);
export.PixelBounds = envelope;
//可用于取消操作
ITrackCancel pCancel = new CancelTrackerClass();
export.TrackCancel = pCancel;
pCancel.Reset();
//点击ESC键时，中止转出
pCancel.CancelOnKeyPress = true;
pCancel.CancelOnClick = false;
pCancel.ProcessMessages = true;
//获取handle
int hDC = export.StartExporting();
//开始转出
pView.Output(hDC, (int)export.Resolution, ref exportRect, pEnvelope, pCancel);
bool bContinue = pCancel.Continue();
//捕获是否继续
if (bContinue)
{
export.FinishExporting();
export.Cleanup();
MessageBox.Show("导出至" + outPath);
}
else
{
export.Cleanup();
}
bContinue = pCancel.Continue();
}
catch (Exception excep)
{
MessageBox.Show("导出失败" + excep.Message);//错误信息提示
}
}
/// <summary>
/// 打印或者输出
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnPrint_Click(object sender, EventArgs e)
{
if (axPageLayoutControl1.ActiveView.FocusMap.LayerCount == 0)
{
MessageBox.Show("No Map !");
return;
}
if (rdoPrint.Checked)
{
printDialog1.AllowSomePages = true; //允许用户选择打印哪些页面
printDialog1.ShowHelp = true;
printDialog1.Document = document;
DialogResult result = printDialog1.ShowDialog();
if (result == DialogResult.OK)
{
document.Print();
}
}
if (rdoOutput.Checked)
{
IExport export = null;
string path = outputPath.Text;
if (path == "无")
{
MessageBox.Show("请先选择导出路径");
return;
}
export = getExportClass(path);
if (export == null)
{
MessageBox.Show("导出路径错误");
return;
}
export.ExportFileName = path;
IEnvelope pEnvelope = axPageLayoutControl1.Extent;
//导出参数
export.Resolution = 300;
tagRECT exportRect = new tagRECT();
exportRect.left = 0;
exportRect.top = 0;
//这里暂时固定大小
exportRect.right = 1000;
exportRect.bottom = 1300;
IEnvelope envelope = new EnvelopeClass();
//输出范围
envelope.PutCoords(exportRect.left, exportRect.bottom, exportRect.right, exportRect.top);
export.PixelBounds = envelope;
//可用于取消操作
ITrackCancel pCancel = new CancelTrackerClass();
export.TrackCancel = pCancel;
pCancel.Reset();
//点击ESC键时，中止转出
pCancel.CancelOnKeyPress = true;
pCancel.CancelOnClick = false;
pCancel.ProcessMessages = true;
//获取handle
int hDC = export.StartExporting();
//开始转出
axPageLayoutControl1.ActiveView.Output(hDC, (int)export.Resolution, ref exportRect, pEnvelope, pCancel);
bool bContinue = pCancel.Continue();
//捕获是否继续
if (bContinue)
{
export.FinishExporting();
export.Cleanup();
MessageBox.Show("导出至" + path);
}
else
{
export.Cleanup();
}
bContinue = pCancel.Continue();
}
}
