private void DotDensity(IFeatureLayer pFeatLyr, string sFieldName, int intRendererDensity)
{
IGeoFeatureLayer pGeoFeatureLayer = pFeatLyr as IGeoFeatureLayer;
IDotDensityRenderer pDotDensityRenderer = new DotDensityRendererClass();
IRendererFields pRendererFields = pDotDensityRenderer as IRendererFields;
//设置渲染字段
pRendererFields.AddField(sFieldName);
//设置填充背景色
IDotDensityFillSymbol pDotDensityFillSymbol = new DotDensityFillSymbolClass();
pDotDensityFillSymbol.DotSize = 3;
pDotDensityFillSymbol.BackgroundColor = GetRgbColor(0, 255, 0);
//设置渲染符号
ISymbolArray pSymbolArray = pDotDensityFillSymbol as ISymbolArray;
ISimpleMarkerSymbol pSimpleMarkerSymbol = new SimpleMarkerSymbolClass();
pSimpleMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSCircle;
pSimpleMarkerSymbol.Color = GetRgbColor(0, 0, 255);
pSymbolArray.AddSymbol(pSimpleMarkerSymbol as ISymbol);
pDotDensityRenderer.DotDensitySymbol = pDotDensityFillSymbol;
//设置渲染密度，即每个点符号所代表的数值大小
pDotDensityRenderer.DotValue = intRendererDensity;
//创建图例
pDotDensityRenderer.CreateLegend();
pGeoFeatureLayer.Renderer = pDotDensityRenderer as IFeatureRenderer;
axMapControl1.Refresh();
axMapControl1.Update();
Close();
}
private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
{
rasterRen.Raster = m_rasterLayer.Raster;
rasterRen.Update();
rasterRGBRen.RedBandIndex = comboBox2.SelectedIndex;
rasterRGBRen.GreenBandIndex = comboBox3.SelectedIndex;
rasterRGBRen.BlueBandIndex = comboBox4.SelectedIndex;
rasterRen.Update();
m_rasterLayer.Renderer = (IRasterRenderer)rasterRGBRen;
m_mapControl.Extent = m_rasterLayer.AreaOfInterest;
m_mapControl.ActiveView.Refresh();
m_mapControl.Refresh();
m_mapControl.Update();
}
//闪烁目标
public static void FlashFeature(AxMapControl mapControl, IFeature iFeature, IMap iMap)
{
IActiveView iActiveView = iMap as IActiveView;
//mapControl.SuspendLayout();
//update很重要。先让前面的缩放操作更新好了，再闪烁。
mapControl.Update();
if (iActiveView != null)
{
iActiveView.ScreenDisplay.StartDrawing(0, (short)esriScreenCache.esriNoScreenCache);
//根据几何类型调用不同的过程
switch (iFeature.Shape.GeometryType)
{
case esriGeometryType.esriGeometryPolyline:
FlashLine(mapControl, iActiveView.ScreenDisplay, iFeature.Shape);
break;
case esriGeometryType.esriGeometryPolygon:
FlashPolygon(mapControl, iActiveView.ScreenDisplay, iFeature.Shape);
break;
case esriGeometryType.esriGeometryPoint:
FlashPoint(mapControl, iActiveView.ScreenDisplay, iFeature.Shape);
break;
default:
break;
}
iActiveView.ScreenDisplay.FinishDrawing();
}
}
public static void SaveMxd()
{
IMapDocument oMapDoc = new MapDocumentClass();
oMapDoc.Open(AxMapControl.DocumentFilename);
if (oMapDoc.IsReadOnly[AxMapControl.DocumentFilename])
{
throw new InvalidOperationException("Can not save mxd. Is read only.");
}
AxMapControl.Update();
AxTocControl.Update();
oMapDoc.ReplaceContents((IMxdContents)AxMapControl.Map);
oMapDoc.Save(true, true);
oMapDoc.Close();
if (oMapDoc != null)
{
ComReleaser.ReleaseCOMObject(oMapDoc);
oMapDoc = null;
}
if (AxMapControl.Map != null)
{
ComReleaser.ReleaseCOMObject(AxMapControl.Map);
AxMapControl.Map = null;
}
GC.Collect();
GC.WaitForPendingFinalizers();
}
/// <summary>
/// 初始化标牌
/// </summary>
private void InitLable()
{
IPoint point = base.Geometry as IPoint;
mapControl = BelongLayer.MapControl as AxMapControl;
mapControl.Update();
mapControl.OnMouseDown += mapControl_OnMouseDown;
int x = -1;
int y = -1;
mapControl.FromMapPoint(point, ref x, ref y);
System.Drawing.Point targetPoint = new System.Drawing.Point(x, y);
mapLabel = new Windows.MapLabel(targetPoint);
mapLabel.Move += new EventHandler(mapLabel_Move);
mapLabel.Location = mapLabel.LabelLocation;
IPoint labelLocation = mapControl.ToMapPoint(mapLabel.Location.X, mapLabel.Location.Y);
Dosomething((Action)(delegate
{
mapControl.Controls.Add(mapLabel);
}), true);
//画线
MapFrame.Core.Model.Kml kml = new MapFrame.Core.Model.Kml();
kml.Placemark.Name = "标牌线";
MapFrame.Core.Model.KmlLineString line = new MapFrame.Core.Model.KmlLineString();
List <MapFrame.Core.Model.MapLngLat> pointList = new List <MapFrame.Core.Model.MapLngLat>();
pointList.Add(new MapFrame.Core.Model.MapLngLat(point.X, point.Y));
pointList.Add(new MapFrame.Core.Model.MapLngLat(labelLocation.X, labelLocation.Y));
line.PositionList = pointList;
line.Color = Color.Black;
line.Width = 2;
kml.Placemark.Graph = line;
BelongLayer.AddElement(kml);
}
private void btnuse_Click(object sender, EventArgs e)
{
if (m_pLayer is IFeatureLayer)
{
try
{
m_strSQL = RtbSQL.Text;
m_pMapCtl.Map.ClearSelection();
IFeatureSelection pFS = (IFeatureSelection)m_pLayer;
IQueryFilter pFilter = new QueryFilterClass();
pFilter.WhereClause = m_strSQL;
pFS.SelectFeatures(pFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
pFS.SelectionChanged();
m_pMapCtl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, m_pLayer, null);
m_pMapCtl.Update();
}
catch (System.Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
}
/// <summary>
/// 刷新地图
/// </summary>
public void RefreshMap()
{
MainMapControl.Refresh();
MainMapControl.Update();
}
private void bt_ok_Click(object sender, EventArgs e)
{
splashScreenManager1.ShowWaitForm();
if (comboBoxSelect.SelectedItem == null)
{
MessageBox.Show("图层不能为空");
return;
}
if (comboBoxRed.SelectedItem == null || comboBoxGreen.SelectedItem == null || comboBoxBlue.SelectedItem == null)
{
MessageBox.Show("波段不能为空!");
return;
}
if (textBoxOutPut.Text == "")
{
MessageBox.Show("存储路径不能为空!");
return;
}
IRasterLayer pRasterLayer = new RasterLayerClass();
pRasterLayer.CreateFromDataset(m_pRasterDataset);
IRasterRGBRenderer pRasterRGBRen = new RasterRGBRendererClass();
IRasterRenderer pRasterRen = (IRasterRenderer)pRasterRGBRen;
pRasterRen.Raster = pRasterLayer.Raster;
pRasterRGBRen.RedBandIndex = comboBoxRed.SelectedIndex;
pRasterRGBRen.GreenBandIndex = comboBoxGreen.SelectedIndex;
pRasterRGBRen.BlueBandIndex = comboBoxBlue.SelectedIndex;
pRasterRen.Update();
pRasterLayer.Renderer = (IRasterRenderer)pRasterRGBRen;
IRaster pRaster = pRasterLayer.Raster;
if (pRaster != null)
{
IWorkspaceFactory WF = new RasterWorkspaceFactoryClass();
string filename = textBoxOutPut.Text;
string filepath = System.IO.Path.GetDirectoryName(filename);
string name = System.IO.Path.GetFileName(filename);
try
{
IWorkspace rasterWorkspace = WF.OpenFromFile(filepath, 0);
ISaveAs saveAs = (ISaveAs)pRaster;
saveAs.SaveAs(name, rasterWorkspace, "");
if (MessageBox.Show("保存成功，是否打开图层？") == DialogResult.OK)
{
pRasterLayer.Name = name;
m_mapControl.AddLayer(pRasterLayer);
m_mapControl.Extent = pRasterLayer.AreaOfInterest;
m_mapControl.ActiveView.Refresh();
m_mapControl.Refresh();
m_mapControl.Update();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
}
splashScreenManager1.CloseWaitForm();
this.Close();
}
