C# ESRI.DrawMarker方法代码示例

//.........这里部分代码省略.........
        if (!m_bDynamicGlyphsCreated)
        {
          this.CreateDynamicSymbols(m_dynamicGlyphFactory);
          m_bDynamicGlyphsCreated = true;
        }

        double X, Y, heading;
        int type;
        //iterate through the layers' items
        foreach (DataRow r in m_table.Rows)
        {
          if (r[1] is DBNull || r[2] is DBNull)
            continue;

          //get the item's coordinate, heading and type
          X = Convert.ToDouble(r[1]);
          Y = Convert.ToDouble(r[2]);
          heading = Convert.ToDouble(r[5]);
          type = Convert.ToInt32(r[6]);

          //assign the items' coordinate to the cached point
          m_point.PutCoords(X, Y);

          //set the symbol's properties
          switch (type)
          {
            case 0:
              //set the heading of the current symbols' text
              m_dynamicSymbolProps.set_Heading(esriDynamicSymbolType.esriDSymbolText, 0.0f);
              m_dynamicSymbolProps.set_Heading(esriDynamicSymbolType.esriDSymbolMarker, 0.0f);

              //set the symbol alignment so that it will align with the screen
              m_dynamicSymbolProps.set_RotationAlignment(esriDynamicSymbolType.esriDSymbolMarker, esriDynamicSymbolRotationAlignment.esriDSRAScreen);

              //set the text alignment so that it will also align with the screen
              m_dynamicSymbolProps.set_RotationAlignment(esriDynamicSymbolType.esriDSymbolText, esriDynamicSymbolRotationAlignment.esriDSRAScreen);

              //scale the item
              m_dynamicSymbolProps.SetScale(esriDynamicSymbolType.esriDSymbolMarker, 0.8f, 0.8f);
              //set the items' color (blue)
              m_dynamicSymbolProps.SetColor(esriDynamicSymbolType.esriDSymbolMarker, 0.0f, 0.0f, 1.0f, 1.0f); // Blue
              //assign the item's glyph to the dynamic-symbol
              m_dynamicSymbolProps.set_DynamicGlyph(esriDynamicSymbolType.esriDSymbolMarker, m_markerGlyphs[0]);
              //set the labels text glyph
              m_dynamicSymbolProps.set_DynamicGlyph(esriDynamicSymbolType.esriDSymbolText, m_textGlyph);
              //set the color of the text
              m_dynamicSymbolProps.SetColor(esriDynamicSymbolType.esriDSymbolText, 1.0f, 1.0f, 0.0f, 1.0f); // Yellow

              //draw the item as a compound marker. This means that you do not have to draw the items and their
              //accompanying labels separately, and thus allow you to write less code as well as get better
              //performance.  
              m_dynamicCompoundMarker.DrawCompoundMarker4
                (m_point,
                //"TOP",
                //"BOTTOM",
                "Item " + Convert.ToString(r[0]),
                heading.ToString("###.##"),
                m_point.X.ToString("###.#####"),
                m_point.Y.ToString("###.#####"));
              break;
            case 1:
              //set the heading of the current symbol
              m_dynamicSymbolProps.set_Heading(esriDynamicSymbolType.esriDSymbolMarker, (float)heading);

              //set the symbol alignment so that it will align with towards the symbol heading
              m_dynamicSymbolProps.set_RotationAlignment(esriDynamicSymbolType.esriDSymbolMarker, esriDynamicSymbolRotationAlignment.esriDSRANorth);

              m_dynamicSymbolProps.SetScale(esriDynamicSymbolType.esriDSymbolMarker, 1.0f, 1.0f);
              m_dynamicSymbolProps.SetColor(esriDynamicSymbolType.esriDSymbolMarker, 0.0f, 1.0f, 0.6f, 1.0f); // GREEN
              m_dynamicSymbolProps.set_DynamicGlyph(esriDynamicSymbolType.esriDSymbolMarker, m_markerGlyphs[1]);

              //draw the current location
              DynamicDisplay.DrawMarker(m_point);
              break;
            case 2:
              //set the heading of the current symbol
              m_dynamicSymbolProps.set_Heading(esriDynamicSymbolType.esriDSymbolMarker, (float)heading);

              //set the symbol alignment so that it will align with towards the symbol heading
              m_dynamicSymbolProps.set_RotationAlignment(esriDynamicSymbolType.esriDSymbolMarker, esriDynamicSymbolRotationAlignment.esriDSRANorth);

              m_dynamicSymbolProps.SetScale(esriDynamicSymbolType.esriDSymbolMarker, 1.1f, 1.1f);
              m_dynamicSymbolProps.SetColor(esriDynamicSymbolType.esriDSymbolMarker, 1.0f, 1.0f, 1.0f, 1.0f); // WHITE
              m_dynamicSymbolProps.set_DynamicGlyph(esriDynamicSymbolType.esriDSymbolMarker, m_markerGlyphs[2]);

              //draw the current location
              DynamicDisplay.DrawMarker(m_point);
              break;
          }
        }

       // by setting immediate flag to false, we signal the dynamic display that the layer is current.
        base.m_bIsImmediateDirty = false;
				
      }     
      catch (Exception ex)
      {
        System.Diagnostics.Trace.WriteLine(ex.Message);
      }
    }