AE+C# 导出图片（BMP、JPEG、GIF、PNG、TIFF）

最新推荐文章于 2024-02-16 22:59:24 发布

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#AE+C#导出图片

本文介绍了一个使用 C# 实现的地图导出功能，该功能允许用户选择不同的图像格式来保存地图视图，包括 BMP、EMF、GIF、JPEG、PNG 和 TIFF。通过设置分辨率和输出范围，可以精确控制导出的图像质量。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Output;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Controls;

namespace LeakOil.Export
{
public partial class ExportMapForm : Form
{
AxMapControl m_Map;
public ExportMapForm(AxMapControl mmap)
{
InitializeComponent();
m_Map = mmap;
}

private void buttonNO_Click(object sender, EventArgs e)
{
this.Close();
}

private void buttonSave_Click(object sender, EventArgs e)
{
SaveFileDialog SaveFile = new SaveFileDialog();
switch (comboBoxtype.SelectedIndex)
{
case 0:
SaveFile.Filter = "bmp文件(*.bmp)|*.bmp";
SaveFile.Title = "保存bmb文件";
break;
case 1:
SaveFile.Filter = "emf文件(*.emf)|*.emf";
SaveFile.Title = "保存jpeg文件";
break;
case 2:
SaveFile.Filter = "gif文件(*.gif)|*.gif";
SaveFile.Title = "保存gif文件";
break;
case 3:
SaveFile.Filter = "png文件(*.jpeg)|*.jpeg";
SaveFile.Title = "保存png文件";
break;
case 4:
SaveFile.Filter = "PNG文件(*.png)|*.png";
SaveFile.Title = "保存bmb文件";
break;
case 5:
SaveFile.Filter = "TIFF文件(*.TIFF)|*.TIFF";
SaveFile.Title = "保存tiff文件";
break;
}
if (SaveFile.ShowDialog() == DialogResult.OK)
{
textBoxPath.Text = SaveFile.FileName;
}
}
private void buttonOK_Click(object sender, EventArgs e)
{
IExport pExport;
switch (comboBoxtype.SelectedIndex)
{
case 0:
pExport = new ExportBMPClass();
Export(pExport);
break;
case 1:
pExport = new ExportEMFClass();
Export(pExport);
break;
case 2:
pExport = new ExportGIFClass();
Export(pExport);
break;
case 3:
pExport = new ExportJPEGClass();
Export(pExport);
break;
case 4:
pExport = new ExportPNGClass();
Export(pExport);
break;
case 5:
pExport = new ExportTIFFClass();
Export(pExport);
break;

}
}
public void Export(IExport pExport)
{
IActiveView pActiveView;
IEnvelope pPixelBoundsEnv;
int iOutputResolution;
int iScreenResolution;
int hdc;

pActiveView = m_Map.ActiveView;
pExport.ExportFileName = textBoxPath.Text.ToString();
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();
}

private void ExportMapForm_Load(object sender, EventArgs e)
{
comboBoxtype.SelectedIndex = 0;
}
}
}