private void LabelHighWay(ILayer pLayer)
{
IGeoFeatureLayer pGeoFeatureLayer = pLayer as IGeoFeatureLayer;
if (pGeoFeatureLayer != null)
{
IAnnotateLayerPropertiesCollection panAnnotateLayerPropertiesCollection =
pGeoFeatureLayer.AnnotationProperties;
panAnnotateLayerPropertiesCollection.Clear();
IRgbColor pColor = new RgbColor();
pColor.Red = 0;
pColor.Blue = 0;
pColor.Green = 0;
IFormattedTextSymbol pTextSymbol = new TextSymbol();
//ITextSymbol pTextSymbol = new TextSymbol();
pTextSymbol.Background = CreateBalloonCallout() as ITextBackground;
pTextSymbol.Color = pColor;
pTextSymbol.Size = 10;
pTextSymbol.Direction = esriTextDirection.esriTDHorizontal;
Font font = new System.Drawing.Font("宋体", 10);
pTextSymbol.Font = ESRI.ArcGIS.ADF.COMSupport.OLE.GetIFontDispFromFont(font) as stdole.IFontDisp;
IBasicOverposterLayerProperties properties = new BasicOverposterLayerProperties();
IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer;
switch (pFeatureLayer.FeatureClass.ShapeType)
{
case esriGeometryType.esriGeometryPolygon:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
break;
case esriGeometryType.esriGeometryPoint:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPoint;
break;
case esriGeometryType.esriGeometryPolyline:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
break;
}
ILabelEngineLayerProperties2 properties2 =
new LabelEngineLayerProperties() as ILabelEngineLayerProperties2;
if (properties2 != null)
{
properties2.Expression = "[LXDM]";
properties2.Symbol = pTextSymbol;
properties2.BasicOverposterLayerProperties = properties;
IAnnotateLayerProperties p = properties2 as IAnnotateLayerProperties;
// p.AnnotationMaximumScale = maxScale;
// p.AnnotationMinimumScale = minScale;
panAnnotateLayerPropertiesCollection.Add(p);
}
}
if (pGeoFeatureLayer != null)
{
pGeoFeatureLayer.DisplayAnnotation = true;
}
_mxDocument.ActivatedView.Refresh();
}
/// <summary>
/// 标注图层
/// </summary>
/// <param name="pLayer">需要标注的图层</param>
/// <param name="fontSize">字体大小</param>
/// <param name="labelField">标注字段</param>
/// <param name="minScale">显示标注的最小比例尺</param>
/// <param name="maxScale">显示标注的最大比例尺</param>
/// 注意：一问最后两个参数是比例尺的分母，所有minScale的值应该比maxSacle的值大
private void LabelLayer(ILayer pLayer, int fontSize, string labelField, double minScale, double maxScale)
{
IGeoFeatureLayer pGeoFeatureLayer = pLayer as IGeoFeatureLayer;
if (pGeoFeatureLayer != null)
{
IAnnotateLayerPropertiesCollection panAnnotateLayerPropertiesCollection =
pGeoFeatureLayer.AnnotationProperties;
panAnnotateLayerPropertiesCollection.Clear();
IRgbColor pColor = new RgbColor();
pColor.Red = 0;
pColor.Blue = 0;
pColor.Green = 0;
ITextSymbol pTextSymbol = new TextSymbol();
pTextSymbol.Color = pColor;
pTextSymbol.Size = fontSize;
Font font = new System.Drawing.Font("宋体", fontSize);
pTextSymbol.Font = ESRI.ArcGIS.ADF.COMSupport.OLE.GetIFontDispFromFont(font) as stdole.IFontDisp;
IBasicOverposterLayerProperties properties = new BasicOverposterLayerProperties();
IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer;
switch (pFeatureLayer.FeatureClass.ShapeType)
{
case esriGeometryType.esriGeometryPolygon:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
break;
case esriGeometryType.esriGeometryPoint:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPoint;
break;
case esriGeometryType.esriGeometryPolyline:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
break;
}
ILabelEngineLayerProperties2 properties2 =
new LabelEngineLayerProperties() as ILabelEngineLayerProperties2;
if (properties2 != null)
{
properties2.Expression = "[" + labelField + "]";
properties2.Symbol = pTextSymbol;
properties2.BasicOverposterLayerProperties = properties;
IAnnotateLayerProperties p = properties2 as IAnnotateLayerProperties;
p.AnnotationMaximumScale = maxScale;
p.AnnotationMinimumScale = minScale;
panAnnotateLayerPropertiesCollection.Add(p);
}
}
if (pGeoFeatureLayer != null)
{
pGeoFeatureLayer.DisplayAnnotation = true;
}
_mxDocument.ActiveView.Refresh();
}
private bool initializeGraphics()
{
try
{
// Initialize the DirectX drawing
initialized = true;
PresentParameters presentParams = new PresentParameters();
presentParams.Windowed = true;
presentParams.SwapEffect = SwapEffect.Discard;
presentParams.DeviceWindowHandle = this.Handle;
device = new Device(0, DeviceType.Hardware,
this,
CreateFlags.SoftwareVertexProcessing,
presentParams);
// Set initial device parameters
device.RenderState.CullMode = Cull.None;
// Initialize the font
Font systemFont = new System.Drawing.Font("Arial", 8f, FontStyle.Regular);
drawingFont = new Microsoft.DirectX.Direct3D.Font(device, systemFont);
// Set the timeseries device details
foreach (oTimeseriesPlot plot in timeseriesPlots)
{
plot.setDevice(device, drawingFont);
}
return(true);
}
catch (Exception ex)
{
initialized = false;
//oConsole.printException(ex);
return(false);
}
}
public void DrawString(string s, System.Drawing.Font font, System.Drawing.SolidBrush brush, System.Drawing.RectangleF layoutRectangle)
{
_renderTarget2D.DrawText(s, _textFormatConverterAndCacher.Convert(font),
_rectangleFConverter.Convert(layoutRectangle), _solidColorBrushConverter.Convert(brush));
}
private bool initializeGraphics()
{
try
{
lock(this)
{
// Initialize the DirectX drawing
initialized = true;
lastInitializeTime = DateTime.Now;
PresentParameters presentParams = new PresentParameters();
presentParams.Windowed = true;
presentParams.SwapEffect = SwapEffect.Discard;
presentParams.DeviceWindowHandle = this.Handle;
device = new Device(0,
DeviceType.Hardware,
this,
CreateFlags.SoftwareVertexProcessing,
presentParams);
// Set initial device parameters
device.RenderState.FillMode = FillMode.WireFrame;
device.RenderState.CullMode = Cull.None;
// Initialize the font
Font systemFont = new System.Drawing.Font("Arial", 8f, FontStyle.Regular);
directxFont = new Microsoft.DirectX.Direct3D.Font(device, systemFont);
}
return true;
}
catch (Exception ex)
{
initialized = false;
//oConsole.printException(ex);
return false;
}
}
public static byte[] Watermark(byte[] image, string watermarkText)
{
var texts = watermarkText.Split(new string[] { "[@n@]" }, StringSplitOptions.RemoveEmptyEntries);
var text1 = texts[0];
var text2 = texts[1];
var text3 = texts[2];
using (var ms = new MemoryStream(image))
{
//Read the File into a Bitmap.
using (Bitmap bmp = new Bitmap(ms))
{
using (Graphics grp = Graphics.FromImage(bmp))
{
//Set the Color of the Watermark text.
Brush brush = new SolidBrush(Color.White);
//Set the Font and its size.
Font font = new System.Drawing.Font("Arial", 70, FontStyle.Bold, GraphicsUnit.Pixel);
//Determine the size of the Watermark text.
SizeF textSize1 = grp.MeasureString(text1, font);
SizeF textSize2 = grp.MeasureString(text2, font);
SizeF textSize3 = grp.MeasureString(text3, font);
//Prepare the background rectangle and draw
int bgRectWidth;
int bgRectHeight = (int)(textSize1.Height + textSize2.Height + textSize3.Height) + 20;
if (textSize2.Width >= textSize3.Width)
{
bgRectWidth = (int)textSize2.Width + 20;
}
else
{
bgRectWidth = (int)textSize3.Width + 20;
}
Brush rectBrush = new SolidBrush(Color.FromArgb(180, 219, 70, 153));
grp.FillRectangle(rectBrush, 0, (bmp.Height - bgRectHeight), bgRectWidth, bgRectHeight);
//Position the text and draw it on the image.
Point position1 = new Point(10, (bmp.Height - ((int)(textSize1.Height + textSize2.Height + textSize3.Height) + 10)));
grp.DrawString(text1, font, brush, position1);
Point position2 = new Point(10, (bmp.Height - ((int)(textSize2.Height + textSize3.Height) + 10)));
grp.DrawString(text2, font, brush, position2);
Point position3 = new Point(10, (bmp.Height - ((int)(textSize3.Height) + 10)));
grp.DrawString(text3, font, brush, position3);
using (MemoryStream memoryStream = new MemoryStream())
{
//Save the Watermarked image to the MemoryStream.
bmp.Save(memoryStream, ImageFormat.Jpeg);
memoryStream.Position = 0;
return(memoryStream.ToArray());
}
}
}
}
}