/// <summary>
/// 导出图片
/// </summary>
public void ExportPictureMyself(string fileName)
{
IActiveView pActiveView = pagelayout.ActiveView;
IEnvelope pEnv;
int iOutputResolution = 600;
int iScreenResolution = 96;
int hDC;
tagRECT exportRECT;
exportRECT.left = 0;
exportRECT.top = 0;
exportRECT.right = pActiveView.ExportFrame.right * (iOutputResolution / iScreenResolution);
exportRECT.bottom = pActiveView.ExportFrame.bottom * (iOutputResolution / iScreenResolution);
pEnv = new EnvelopeClass();
pEnv.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom);
IExportFileDialog pExportFileDialog = new ExportFileDialogClass();
string filename = fileName;
IExport pExport = new ExportJPEGClass();
pExport.ExportFileName = filename;
pExport.Resolution = iOutputResolution;
pExport.PixelBounds = pEnv;
hDC = pExport.StartExporting();
pActiveView.Output(hDC, (int)pExport.Resolution, ref exportRECT, null, null);
pExport.FinishExporting();
pExport.Cleanup();
}
/// <summary>
/// 全域导出
/// </summary>
/// <param name="OutputResolution">输出分辨率</param>
/// <param name="ExpPath">输出路径</param>
/// <param name="view">视图</param>
public static void ExportActiveView(int OutputResolution, string ExpPath, IActiveView view)
{
IExport pExport = null;
tagRECT exportRect;
IEnvelope envelope2 = view.Extent;
int num = (int)Math.Round(view.ScreenDisplay.DisplayTransformation.Resolution);
string sType = System.IO.Path.GetExtension(ExpPath);
switch (sType)
{
case ".jpg":
pExport = new ExportJPEGClass();
break;
case ".bmp":
pExport = new ExportBMPClass();
break;
case ".gif":
pExport = new ExportGIFClass();
break;
case ".tif":
pExport = new ExportTIFFClass();
break;
case ".png":
pExport = new ExportPNGClass();
break;
case ".pdf":
pExport = new ExportPDFClass();
break;
default:
MessageBox.Show("没有输出格式，默认到JPEG格式");
pExport = new ExportJPEGClass();
break;
}
pExport.ExportFileName = ExpPath;
exportRect.left = 0; exportRect.top = 0;
exportRect.right = (int)Math.Round((double)(view.ExportFrame.right * (((double)OutputResolution) / ((double)num))));
exportRect.bottom = (int)Math.Round((double)(view.ExportFrame.bottom * (((double)OutputResolution) / ((double)num))));
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords((double)exportRect.left, (double)exportRect.top, (double)exportRect.right, (double)exportRect.bottom);
pExport.PixelBounds = envelope;
view.Output(pExport.StartExporting(), OutputResolution, ref exportRect, envelope2, null);
pExport.FinishExporting();
pExport.Cleanup();
}
public void screenShot(IEnvelope IN_Envelope, string IN_SaveFile, AxMapControl IN_Axmapcontrols, double ratio)
{
/*
* IN_Envelope为输出范围，单位为米
* IN_SaveFile为输出文件名
* IN_Axmapcontrols map控件
* ratio 影像空间分辨率的倒数
*
*/
if (IN_Envelope == null)
{
IN_Envelope = IN_Axmapcontrols.ActiveView.Extent;
}
IExport Temp_Exporter = new ExportJPEGClass(); //定义输出设备 Temp_Exporter
IActiveView Temp_CurrentActiveView = IN_Axmapcontrols.ActiveView;
tagRECT Temp_TtagRECT; //定义的是输出设备的像素大小
Temp_TtagRECT.left = 0;
Temp_TtagRECT.top = 0;
Temp_TtagRECT.right = (int)(IN_Envelope.Width * ratio);
Temp_TtagRECT.bottom = (int)(IN_Envelope.Height * ratio);
int Temp_DPI = 300; //DPI 设置
IEnvelope Temp_Envelope = new EnvelopeClass(); //定义一个Envelope来确定设备单元中输出的图片大小
Temp_Envelope.PutCoords(Temp_TtagRECT.left, Temp_TtagRECT.top, Temp_TtagRECT.right, Temp_TtagRECT.bottom);
//Temp_Envelope.PutCoords(0, 0, 500, 500); 此参数只会显示图片左上角500*500区域
Temp_Exporter.Resolution = Temp_DPI;
Temp_Exporter.ExportFileName = IN_SaveFile;
Temp_Exporter.PixelBounds = Temp_Envelope;
//IOutputRasterSettings pOutputRasterS = (IOutputRasterSettings)IN_Axmapcontrols.ActiveView.ScreenDisplay.DisplayTransformation;
IOutputRasterSettings pOutputRasterS = (IOutputRasterSettings)Temp_CurrentActiveView.ScreenDisplay.DisplayTransformation;
pOutputRasterS.ResampleRatio = 1; //设置了这个采样比例后，输出图片的像素和原始影像的像素一样！
Temp_CurrentActiveView.Output(Temp_Exporter.StartExporting(), (int)Temp_DPI, ref Temp_TtagRECT, IN_Envelope, null);
Temp_Exporter.FinishExporting();
Temp_Exporter.Cleanup();
System.Runtime.InteropServices.Marshal.ReleaseComObject(Temp_Exporter);
}
public static bool OutputJPEGHiResolution(IActiveView activeView, string pathFileName)
{
//parameter check
if (activeView == null || !(pathFileName.EndsWith(".jpg")))
{
return(false);
}
IExport export = new ExportJPEGClass();
export.ExportFileName = pathFileName;
// Because we are exporting to a resolution that differs from screen
// resolution, we should assign the two values to variables for use
// in our sizing calculations
System.Int32 screenResolution = 96;
System.Int32 outputResolution = 300;
export.Resolution = outputResolution;
tagRECT exportRECT; // This is a structure
exportRECT.left = 0;
exportRECT.top = 0;
exportRECT.right = activeView.ExportFrame.right * (outputResolution / screenResolution);
exportRECT.bottom = activeView.ExportFrame.bottom * (outputResolution / screenResolution);
// Set up the PixelBounds envelope to match the exportRECT
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom);
export.PixelBounds = envelope;
int hDC = export.StartExporting();
activeView.Output(hDC, (System.Int16)export.Resolution, ref exportRECT, null, null); // Explicit Cast and 'ref' keyword needed
export.FinishExporting();
export.Cleanup();
return(true);
}
public static void ExportView(IActiveView view, IGeometry pGeo, int OutputResolution, int Width, int Height, string ExpPath, bool bRegion)
{
IExport pExport = null;
tagRECT exportRect = new tagRECT();
IEnvelope pEnvelope = pGeo.Envelope;
string sType = System.IO.Path.GetExtension(ExpPath);
switch (sType)
{
case ".jpg":
pExport = new ExportJPEGClass();
break;
case ".bmp":
pExport = new ExportBMPClass();
break;
case ".gif":
pExport = new ExportGIFClass();
break;
case ".tif":
pExport = new ExportTIFFClass();
break;
case ".png":
pExport = new ExportPNGClass();
break;
case ".pdf":
pExport = new ExportPDFClass();
break;
default:
MessageBox.Show("没有输出格式，默认到JPEG格式");
pExport = new ExportJPEGClass();
break;
}
pExport.ExportFileName = ExpPath;
exportRect.left = 0;
exportRect.top = 0;
exportRect.right = Width;
exportRect.bottom = Height;//bottom 写成 left 两天才排出错误 2016年4月17日20:24:13
if (bRegion)
{
view.GraphicsContainer.DeleteAllElements();
view.Refresh();
}
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords((double)exportRect.left, (double)exportRect.top, (double)exportRect.right, (double)exportRect.bottom);
pExport.PixelBounds = envelope;
//MessageBox.Show("Go Here！ OutputResolution " + OutputResolution, "yahooo");
view.Output(pExport.StartExporting(), OutputResolution, ref exportRect, pEnvelope, null);//无法运行2016年4月17日14:42:25
/*
* 当时发现错误出现在上句，对分辨率参数做了排查，但是忽略了其它参数，而最终的问题就在于其中的pEnvelope参数
* 这次能够排出错误，是因为对照了原来的代码，而在自己写程序时没有参考代码，仅靠对照排错是不够的，
* 因此，要逐步缩小出错的代码块，对每一个参数都要进行检验。（2016年4月17日20:31:12）
*/
pExport.FinishExporting();
pExport.Cleanup();
}
/// <summary>
/// Create Bitmap From ESRI Dataset
/// </summary>
/// <param name="dataset">Dataset to generate an image from</param>
/// <param name="imageFormat">Output image format</param>
/// <param name="size">Size of output image</param>
/// <param name="resolution">Resolution of output image (dpi)</param>
/// <param name="background">Background color</param>
/// <param name="filename">Ouput filename</param>
public static void CreateBitmap(IDataset dataset, esriImageFormat imageFormat, Size size, ushort resolution, Color background, string filename) {
ILayer layer = null;
switch (dataset.Type) {
case esriDatasetType.esriDTFeatureClass:
IFeatureClass featureClass = (IFeatureClass)dataset;
switch (featureClass.FeatureType) {
case esriFeatureType.esriFTDimension:
layer = new DimensionLayerClass();
break;
case esriFeatureType.esriFTAnnotation:
layer = new FeatureLayerClass();
IGeoFeatureLayer geoFeaureLayer = (IGeoFeatureLayer)layer;
geoFeaureLayer.DisplayAnnotation = true;
break;
case esriFeatureType.esriFTComplexEdge:
case esriFeatureType.esriFTComplexJunction:
case esriFeatureType.esriFTSimple:
case esriFeatureType.esriFTSimpleEdge:
case esriFeatureType.esriFTSimpleJunction:
layer = new FeatureLayerClass();
break;
}
if (layer == null) { return; }
IFeatureLayer featureLayer = (IFeatureLayer)layer;
featureLayer.FeatureClass = featureClass;
break;
case esriDatasetType.esriDTRasterDataset:
layer = new RasterLayerClass();
IRasterLayer rasterLayer = (IRasterLayer)layer;
rasterLayer.CreateFromDataset((IRasterDataset)dataset);
break;
default:
string message = string.Format("[{0}] is not supported", dataset.Type.ToString());
throw new Exception(message);
}
if (layer == null) { return; }
// Create In-memory Map
IMap map = new MapClass();
map.AddLayer(layer);
IActiveView activeView = (IActiveView)map;
IExport export = null;
tagRECT rect = new tagRECT();
// Set Format Specific Properties
switch (imageFormat) {
case esriImageFormat.esriImageJPG:
export = new ExportJPEGClass();
IExportJPEG exportJpeg = (IExportJPEG)export;
exportJpeg.ProgressiveMode = false;
exportJpeg.Quality = 100;
break;
default:
throw new Exception("[" + imageFormat.ToString() + "] is not supported");
}
if (export == null) {
throw new Exception("Failed to Created Exporter");
}
// Set Background
if ((export is IExportBMP) ||
(export is IExportGIF) ||
(export is IExportJPEG) ||
(export is IExportPNG) ||
(export is IExportTIFF)) {
IExportImage exportImage = (IExportImage)export;
exportImage.ImageType = esriExportImageType.esriExportImageTypeTrueColor;
exportImage.BackgroundColor = GeodatabaseUtility.ToESRIColor(background);
}
// Set Export Frame
rect = activeView.ExportFrame;
rect.left = 0;
rect.top = 0;
rect.right = size.Width;
rect.bottom = size.Height;
// Set Output Extent
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords(rect.left, rect.top, rect.right, rect.bottom);
export.PixelBounds = envelope;
export.Resolution = resolution;
export.ExportFileName = filename;
// Export map to image
int intHdc = export.StartExporting();
activeView.Output(intHdc, resolution, ref rect, null, null);
export.FinishExporting();
export.Cleanup();
// Clear Layers
map.ClearLayers();
// Release COM Objects
GeodatabaseUtility.ReleaseComObject(layer);
GeodatabaseUtility.ReleaseComObject(envelope);
GeodatabaseUtility.ReleaseComObject(map);
GeodatabaseUtility.ReleaseComObject(activeView);
GeodatabaseUtility.ReleaseComObject(export);
GC.Collect();
GC.WaitForPendingFinalizers();
}
/// <summary>
/// 导出图片
/// </summary>
public void ExportPicture(string strdefaultfilename)
{
if (strdefaultfilename.Contains("制"))
{
strdefaultfilename = strdefaultfilename.Replace("制","");
}
try
{
IActiveView pActiveView =axPageLayoutControl1.ActiveView;
IEnvelope pEnv;
int iOutputResolution = 600;
int iScreenResolution = 96;
int hDC;
tagRECT exportRECT;
exportRECT.left = 0;
exportRECT.top = 0;
//exportRECT.right = pActiveView.ExportFrame.right;
//exportRECT.bottom = pActiveView.ExportFrame.bottom;
exportRECT.right = pActiveView.ExportFrame.right * (iOutputResolution / iScreenResolution);
exportRECT.bottom = pActiveView.ExportFrame.bottom * (iOutputResolution / iScreenResolution);
pEnv = new EnvelopeClass();
pEnv.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom);
IExportFileDialog pExportFileDialog = new ExportFileDialogClass();
pExportFileDialog.DocumentName = strdefaultfilename;
//bool bl;
//bl = pExportFileDialog.DoModal(pEnv, pActiveView.Extent, pActiveView.Extent, 900);
//if (!bl) return;
//IExport pExport = pExportFileDialog.Export;
//pExport.Resolution = iOutputResolution;
//pExport.PixelBounds = pEnv;
string filename = Application.StartupPath + @"\Image\1.jpg";
if (File.Exists(filename))
{
File.Delete(filename);
}
IExport pExport = new ExportJPEGClass();
pExport.ExportFileName = filename;
pExport.Resolution = iOutputResolution;
pExport.PixelBounds = pEnv;
hDC = pExport.StartExporting();
pActiveView.Output(hDC, (int)pExport.Resolution, ref exportRECT, null, null);
pExport.FinishExporting();
pExport.Cleanup();
hDC = pExport.StartExporting();
pActiveView.Output(hDC, (int)pExport.Resolution, ref exportRECT, null, null);
pExport.FinishExporting();
pExport.Cleanup();
// MessageBox.Show("保存成功", "提示");
}
catch (Exception ax)
{
MessageBox.Show(ax.ToString());
}
//try
//{
// System.Windows.Forms.SaveFileDialog sfd = new SaveFileDialog();
// sfd.Filter = "*.jpeg|*.jpeg|*.pdf|*.pdf|*.bmp|*.bmp";
// if (sfd.ShowDialog() == DialogResult.OK)
// {
// IExport pExport = null;
// if (1 == sfd.FilterIndex)
// {
// pExport = new ExportJPEGClass();
// }
// else if (2 == sfd.FilterIndex)
// {
// pExport = new ExportPDFClass();
// }
// else if (3 == sfd.FilterIndex)
// {
// pExport = new ExportBMPClass();
// }
// pExport.ExportFileName = sfd.FileName;
// //设置参数
// //默认精度
// int reslution = 300;
// pExport.Resolution = reslution;
// //获取导出范围
// tagRECT exportRECT = axPageLayoutControl1.ActiveView.ExportFrame;
// //tagRECT exportRECT = axMapMain.ActiveView.ExportFrame;
// IEnvelope pPixelBoundsEnv = new EnvelopeClass();
// pPixelBoundsEnv.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom);
// pExport.PixelBounds = pPixelBoundsEnv;
// //开始导出，获取DC
// int hDC = pExport.StartExporting();
// IEnvelope pVisbounds = null;
// ITrackCancel ptrac = null;
// //导出
// axPageLayoutControl1.ActiveView.Output(hDC, (int)pExport.Resolution, ref exportRECT, pVisbounds, ptrac);
// //结束导出
// pExport.FinishExporting();
// //清理导出类
// pExport.Cleanup();
// MessageBox.Show("导出成功","提示");
// }
//}
//catch
//{
//}
}
/// <summary>
/// 根据Mxd输出JPG图片
/// </summary>
/// <param name="pActiveView"></param>
/// <param name="Resolution">分辨率</param>
/// <param name="strFilePath">保存图片路径</param>
/// <param name="strMxdPath">Mxd文档路径</param>
private void ExportJPG(IActiveView pActiveView, int Resolution, string strFilePath, string strMxdPath)
{
long iPrevOutputImageQuality;
IOutputRasterSettings docOutputRasterSettings;
IDisplayTransformation docDisplayTransformation;
tagRECT DisplayBounds;
IPageLayout docPageLayout;
IEnvelope docGraphicsExtentEnv;
IEnvelope docMapExtEnv;
IUnitConverter pUnitConvertor;
IEnvelope PixelBoundsEnv;
IExport pExport = new ExportJPEGClass();
try
{
string strPath = strFilePath + "\\" + System.IO.Path.GetFileNameWithoutExtension(strMxdPath) + ".jpg";
pExport.ExportFileName = strPath;
if (System.IO.File.Exists(strPath))
{
System.IO.File.Delete(strPath);
}
int iOutputResolution = Resolution;
pExport.Resolution = iOutputResolution;
docOutputRasterSettings = pActiveView.ScreenDisplay.DisplayTransformation as IOutputRasterSettings;
iPrevOutputImageQuality = docOutputRasterSettings.ResampleRatio;
SetOutputQuality(pActiveView, 1);
if (pActiveView is IPageLayout)
{
DisplayBounds = pActiveView.ExportFrame;
docGraphicsExtentEnv = GetGraphicsExtent(pActiveView);
}
else
{
docDisplayTransformation = pActiveView.ScreenDisplay.DisplayTransformation;
DisplayBounds = docDisplayTransformation.get_DeviceFrame();
}
tagRECT exportRECT;
PixelBoundsEnv = new Envelope() as IEnvelope;
double tempratio = iOutputResolution / Resolution;
double tempbottom = DisplayBounds.bottom * tempratio;
double tempright = DisplayBounds.right * tempratio;
exportRECT.bottom = (int)Math.Truncate(tempbottom);
exportRECT.left = 0;
exportRECT.top = 0;
exportRECT.right = (int)Math.Truncate(tempright);
PixelBoundsEnv.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom);
docMapExtEnv = null;
pExport.PixelBounds = PixelBoundsEnv;
int hDc = pExport.StartExporting();
pActiveView.Output(hDc, (int)pExport.Resolution, ref exportRECT, docMapExtEnv, null);
pExport.FinishExporting();
}
catch { }
finally
{
//完成输出后清理临时文件
pExport.Cleanup();
docMapExtEnv = null;
PixelBoundsEnv = null;
docGraphicsExtentEnv = null;
}
}
private void OutputMap(string mxdPath, string saveMxdPath)
{
try
{
if (txtResolution.Text.Trim() == "" && cbxExpention.Text.Trim() == "")
{
MessageBox.Show("保存类型和分辨率不能为空！");
return;
}
// string fpath;
IActiveView pActiveView;
IExport pExport;
IEnvelope pPixelBoundsEnv;
int iOutputResolution;
int iScreenResolution;
int hDC;
IMxdContents pMxdC;
IMapDocument pMapDocument = new MapDocumentClass();
pMapDocument.Open(mxdPath, "");
pMxdC = pMapDocument.PageLayout as IMxdContents;
// IMap pMap = pMxdC.ActiveView.FocusMap; //this.axPageLayoutControl1.ActiveView.FocusMap;
// IPageLayout pPageLayout = pMxdC.PageLayout;//this.axPageLayoutControl1.PageLayout;
// AxPageLayoutControl pPageLayoutControl = pMapDocument as AxPageLayoutControl;
pActiveView = pMapDocument.ActiveView;
pExport = new ExportJPEGClass();
// SaveFileDialog saveFileDialog1 = new SaveFileDialog();
// saveFileDialog1.InitialDirectory = Application.StartupPath;
// saveFileDialog1.Filter =string.Format("{0} files (*.{0})|*.{0}",cbxExpention.Text.Trim());
string fpath = saveMxdPath + "." + cbxExpention.Text.Trim();
//if (saveFileDialog1.ShowDialog() == DialogResult.OK)
//{
// fpath = saveFileDialog1.FileName.Trim();
pExport.ExportFileName = fpath;
iScreenResolution = 96;
iOutputResolution = 300;
pExport.Resolution = iOutputResolution;
tagRECT pExportFrame;
pExportFrame = pActiveView.ExportFrame;
tagRECT exportRECT;
exportRECT.left = 0;
exportRECT.top = 0;
exportRECT.right = pActiveView.ExportFrame.right * (iOutputResolution /
iScreenResolution);
exportRECT.bottom = pActiveView.ExportFrame.bottom * (iOutputResolution /
iScreenResolution);
pPixelBoundsEnv = new EnvelopeClass();
pPixelBoundsEnv.PutCoords(exportRECT.left, exportRECT.top,
exportRECT.right, exportRECT.bottom);
pExport.PixelBounds = pPixelBoundsEnv;
hDC = pExport.StartExporting();
pActiveView.Output(hDC, (int)pExport.Resolution, ref exportRECT, null, null);
pExport.FinishExporting();
pExport.Cleanup();
// }
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void toolStripButton10_Click(object sender, EventArgs e)
{
try
{
SaveFileDialog exportJPGDialog = new SaveFileDialog();
exportJPGDialog.Title = "导出JPEG图像";
exportJPGDialog.Filter = "Jpeg Files(*.jpg,*.jpeg)|*.jpg,*.jpeg";
exportJPGDialog.RestoreDirectory = true;
exportJPGDialog.ValidateNames = true;
exportJPGDialog.OverwritePrompt = true;
exportJPGDialog.DefaultExt = "jpg";
if (exportJPGDialog.ShowDialog() == DialogResult.OK)
{
double lScreenResolution;
lScreenResolution = axMapControl1.ActiveView.ScreenDisplay.DisplayTransformation.Resolution;
IExport pExporter = new ExportJPEGClass() as IExport;
//IExport pExporter = new ExportPDFClass() as IExport;//直接可以用！！
pExporter.ExportFileName = exportJPGDialog.FileName;
pExporter.Resolution = lScreenResolution;
tagRECT deviceRECT;
//用这句的话执行到底下的ｏｕｔｐｕｔ（）时就会出现错误：Not enough memory to create requested bitmap
//axMapControl1.ActiveView.ScreenDisplay.DisplayTransformation.set_DeviceFrame(ref deviceRECT);
deviceRECT = axMapControl1.ActiveView.ExportFrame;
IEnvelope pDriverBounds = new EnvelopeClass();
//pDriverBounds = axMapControl1.ActiveView.FullExtent;
pDriverBounds.PutCoords(deviceRECT.left, deviceRECT.bottom, deviceRECT.right, deviceRECT.top);
pExporter.PixelBounds = pDriverBounds;
ITrackCancel pCancel = new CancelTrackerClass();
axMapControl1.ActiveView.Output(pExporter.StartExporting(), (int)lScreenResolution, ref deviceRECT, axMapControl1.ActiveView.Extent, pCancel);
pExporter.FinishExporting();
pExporter.Cleanup();
MessageBox.Show("图像保存在" + exportJPGDialog.FileName, "保存成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
catch (Exception ex)
{ MessageBox.Show(ex.Message); return; }
}
/// <summary>
/// Create Bitmap From ESRI Dataset
/// </summary>
/// <param name="dataset">Dataset to generate an image from</param>
/// <param name="imageFormat">Output image format</param>
/// <param name="size">Size of output image</param>
/// <param name="resolution">Resolution of output image (dpi)</param>
/// <param name="background">Background color</param>
/// <param name="filename">Ouput filename</param>
public static void CreateBitmap(IDataset dataset, esriImageFormat imageFormat, Size size, ushort resolution, Color background, string filename)
{
ILayer layer = null;
switch (dataset.Type)
{
case esriDatasetType.esriDTFeatureClass:
IFeatureClass featureClass = (IFeatureClass)dataset;
switch (featureClass.FeatureType)
{
case esriFeatureType.esriFTDimension:
layer = new DimensionLayerClass();
break;
case esriFeatureType.esriFTAnnotation:
layer = new FeatureLayerClass();
IGeoFeatureLayer geoFeaureLayer = (IGeoFeatureLayer)layer;
geoFeaureLayer.DisplayAnnotation = true;
break;
case esriFeatureType.esriFTComplexEdge:
case esriFeatureType.esriFTComplexJunction:
case esriFeatureType.esriFTSimple:
case esriFeatureType.esriFTSimpleEdge:
case esriFeatureType.esriFTSimpleJunction:
layer = new FeatureLayerClass();
break;
}
if (layer == null)
{
return;
}
IFeatureLayer featureLayer = (IFeatureLayer)layer;
featureLayer.FeatureClass = featureClass;
break;
case esriDatasetType.esriDTRasterDataset:
layer = new RasterLayerClass();
IRasterLayer rasterLayer = (IRasterLayer)layer;
rasterLayer.CreateFromDataset((IRasterDataset)dataset);
break;
default:
string message = string.Format("[{0}] is not supported", dataset.Type.ToString());
throw new Exception(message);
}
if (layer == null)
{
return;
}
// Create In-memory Map
IMap map = new MapClass();
map.AddLayer(layer);
IActiveView activeView = (IActiveView)map;
IExport export = null;
tagRECT rect = new tagRECT();
// Set Format Specific Properties
switch (imageFormat)
{
case esriImageFormat.esriImageJPG:
export = new ExportJPEGClass();
IExportJPEG exportJpeg = (IExportJPEG)export;
exportJpeg.ProgressiveMode = false;
exportJpeg.Quality = 100;
break;
default:
throw new Exception("[" + imageFormat.ToString() + "] is not supported");
}
if (export == null)
{
throw new Exception("Failed to Created Exporter");
}
// Set Background
if ((export is IExportBMP) ||
(export is IExportGIF) ||
(export is IExportJPEG) ||
(export is IExportPNG) ||
(export is IExportTIFF))
{
IExportImage exportImage = (IExportImage)export;
exportImage.ImageType = esriExportImageType.esriExportImageTypeTrueColor;
exportImage.BackgroundColor = GeodatabaseUtility.ToESRIColor(background);
}
// Set Export Frame
rect = activeView.ExportFrame;
rect.left = 0;
rect.top = 0;
rect.right = size.Width;
rect.bottom = size.Height;
// Set Output Extent
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords(rect.left, rect.top, rect.right, rect.bottom);
export.PixelBounds = envelope;
export.Resolution = resolution;
export.ExportFileName = filename;
// Export map to image
int intHdc = export.StartExporting();
activeView.Output(intHdc, resolution, ref rect, null, null);
export.FinishExporting();
export.Cleanup();
// Clear Layers
map.ClearLayers();
// Release COM Objects
GeodatabaseUtility.ReleaseComObject(layer);
GeodatabaseUtility.ReleaseComObject(envelope);
GeodatabaseUtility.ReleaseComObject(map);
GeodatabaseUtility.ReleaseComObject(activeView);
GeodatabaseUtility.ReleaseComObject(export);
GC.Collect();
GC.WaitForPendingFinalizers();
}
/// <summary>
/// 导出图片
/// </summary>
public void ExportPicture(string strdefaultfilename)
{
if (strdefaultfilename.Contains("制"))
{
strdefaultfilename = strdefaultfilename.Replace("制", "");
}
try
{
IActiveView pActiveView = axPageLayoutControl1.ActiveView;
IEnvelope pEnv;
int iOutputResolution = 600;
int iScreenResolution = 96;
int hDC;
tagRECT exportRECT;
exportRECT.left = 0;
exportRECT.top = 0;
//exportRECT.right = pActiveView.ExportFrame.right;
//exportRECT.bottom = pActiveView.ExportFrame.bottom;
exportRECT.right = pActiveView.ExportFrame.right * (iOutputResolution / iScreenResolution);
exportRECT.bottom = pActiveView.ExportFrame.bottom * (iOutputResolution / iScreenResolution);
pEnv = new EnvelopeClass();
pEnv.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom);
IExportFileDialog pExportFileDialog = new ExportFileDialogClass();
pExportFileDialog.DocumentName = strdefaultfilename;
//bool bl;
//bl = pExportFileDialog.DoModal(pEnv, pActiveView.Extent, pActiveView.Extent, 900);
//if (!bl) return;
//IExport pExport = pExportFileDialog.Export;
//pExport.Resolution = iOutputResolution;
//pExport.PixelBounds = pEnv;
string filename = Application.StartupPath + @"\Image\1.jpg";
if (File.Exists(filename))
{
File.Delete(filename);
}
IExport pExport = new ExportJPEGClass();
pExport.ExportFileName = filename;
pExport.Resolution = iOutputResolution;
pExport.PixelBounds = pEnv;
hDC = pExport.StartExporting();
pActiveView.Output(hDC, (int)pExport.Resolution, ref exportRECT, null, null);
pExport.FinishExporting();
pExport.Cleanup();
hDC = pExport.StartExporting();
pActiveView.Output(hDC, (int)pExport.Resolution, ref exportRECT, null, null);
pExport.FinishExporting();
pExport.Cleanup();
// MessageBox.Show("保存成功", "提示");
}
catch (Exception ax)
{
MessageBox.Show(ax.ToString());
}
//try
//{
// System.Windows.Forms.SaveFileDialog sfd = new SaveFileDialog();
// sfd.Filter = "*.jpeg|*.jpeg|*.pdf|*.pdf|*.bmp|*.bmp";
// if (sfd.ShowDialog() == DialogResult.OK)
// {
// IExport pExport = null;
// if (1 == sfd.FilterIndex)
// {
// pExport = new ExportJPEGClass();
// }
// else if (2 == sfd.FilterIndex)
// {
// pExport = new ExportPDFClass();
// }
// else if (3 == sfd.FilterIndex)
// {
// pExport = new ExportBMPClass();
// }
// pExport.ExportFileName = sfd.FileName;
// //设置参数
// //默认精度
// int reslution = 300;
// pExport.Resolution = reslution;
// //获取导出范围
// tagRECT exportRECT = axPageLayoutControl1.ActiveView.ExportFrame;
// //tagRECT exportRECT = axMapMain.ActiveView.ExportFrame;
// IEnvelope pPixelBoundsEnv = new EnvelopeClass();
// pPixelBoundsEnv.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom);
// pExport.PixelBounds = pPixelBoundsEnv;
// //开始导出，获取DC
// int hDC = pExport.StartExporting();
// IEnvelope pVisbounds = null;
// ITrackCancel ptrac = null;
// //导出
// axPageLayoutControl1.ActiveView.Output(hDC, (int)pExport.Resolution, ref exportRECT, pVisbounds, ptrac);
// //结束导出
// pExport.FinishExporting();
// //清理导出类
// pExport.Cleanup();
// MessageBox.Show("导出成功","提示");
// }
//}
//catch
//{
//}
}
private void button2_Click(object sender, EventArgs e)
{
if (System.IO.File.Exists(textBoxFileName.Text.ToString()) == true)
{
MessageBox.Show("该文件已经存在，请重新命名！");
textBoxFileName.SelectAll();
}
else
{
IExport pExport = null;
IWorldFileSettings pWorldFile = null;
IExportImage pExportType;
IEnvelope pDriverBounds = null;
ESRI.ArcGIS.esriSystem.tagRECT userRECT = new ESRI.ArcGIS.esriSystem.tagRECT();
IEnvelope pEnv = new EnvelopeClass();
string FilePath = this.m_strFileName;
string[] strFileName = FilePath.Split('.');
string strFileType = strFileName[1];
switch (strFileType)
{
case "jpg":
pExport = new ExportJPEGClass();
break;
case "bmp":
pExport = new ExportBMPClass();
break;
case "gif":
pExport = new ExportGIFClass();
break;
case "tif":
pExport = new ExportTIFFClass();
break;
case "png":
pExport = new ExportPNGClass();
break;
case "emf":
pExport = new ExportEMFClass();
break;
case "pdf":
pExport = new ExportPDFClass();
break;
case ".ai":
pExport = new ExportAIClass();
break;
case "svg":
pExport = new ExportSVGClass();
break;
default:
pExport = new ExportJPEGClass();
break;
}
pExport.ExportFileName = this.m_strFileName;
pExport.Resolution = Convert.ToInt32(numUDresolution.Value);
pExportType = pExport as IExportImage;
pExportType.ImageType = esriExportImageType.esriExportImageTypeTrueColor;
pEnv = m_pageLayoutControl.ActiveView.Extent;
pWorldFile = (IWorldFileSettings)pExport;
pWorldFile.MapExtent = pEnv;
pWorldFile.OutputWorldFile = false;
userRECT.top = 0;
userRECT.left = 0;
userRECT.right = Convert.ToInt32(txtBoxWidth.Text);
userRECT.bottom = Convert.ToInt32(txtBoxHeight.Text);
pDriverBounds = new EnvelopeClass();
pDriverBounds.PutCoords(userRECT.top, userRECT.bottom, userRECT.right, userRECT.top);
pExport.PixelBounds = pDriverBounds;
ITrackCancel pTrackCancel = new TrackCancelClass();
m_pageLayoutControl.ActiveView.Output(pExport.StartExporting(), Convert.ToInt32(numUDresolution.Value), ref userRECT, m_pageLayoutControl.ActiveView.Extent, pTrackCancel);
pExport.FinishExporting();
MessageBox.Show("打印图片保存成功!", "保存", MessageBoxButtons.OK);
this.Close();
}
}