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xiangling1金蟲 (正式寫手)
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[求助]
AE+c#讓某一圖元居中,閃爍
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下面的代碼,為何不能實(shí)現(xiàn)閃爍,請(qǐng)高手指點(diǎn)哈?![]() //初始化圖形容器對(duì)象 IGraphicsContainer pContainer = axMapControl1.Map as IGraphicsContainer; //刪除要素 pContainer.DeleteAllElements(); //點(diǎn)樣式 ISimpleMarkerSymbol pSimpleMarkerSymbol = new SimpleMarkerSymbolClass(); pSimpleMarkerSymbol.Color = GetRGBColor(255,0,0);//取色 pSimpleMarkerSymbol.Size = 3; IMarkerElement pMarkerElement = new MarkerElementClass(); pMarkerElement.Symbol = pSimpleMarkerSymbol; IElement pElement = pMarkerElement as IElement; pElement.Geometry = pFeature.Shape; int nIndex = 0; pContainer.AddElement(pMarkerElement as IElement, nIndex); //居中顯示 axMapControl1.CenterAt((IPoint)pFeature.Shape); Application.DoEvents(); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, pContainer, axMapControl1.ActiveView.Extent); axMapControl1.FlashShape(pFeature.Shape, 4, 300, pSimpleMarkerSymbol); [ Last edited by xiangling1 on 2011-6-27 at 13:19 ] |

至尊木蟲 (小有名氣)

金蟲 (正式寫手)
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金蟲 (小有名氣)
英超煮帥
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//初始化圖形容器對(duì)象 IGraphicsContainer pContainer = axMapControl1.Map as IGraphicsContainer; //刪除要素 pContainer.DeleteAllElements(); //點(diǎn)樣式 ISimpleMarkerSymbol pSimpleMarkerSymbol = new SimpleMarkerSymbolClass(); pSimpleMarkerSymbol.Color = GetRGBColor(255, 0, 0);//取色 pSimpleMarkerSymbol.Size = 10; IMarkerElement pMarkerElement = new MarkerElementClass(); pMarkerElement.Symbol = pSimpleMarkerSymbol; IElement pElement = pMarkerElement as IElement; pElement.Geometry = pFeature.Shape; int nIndex = 0; pContainer.AddElement(pMarkerElement as IElement, nIndex); //居中顯示 //IEnvelope env = pFeature.Shape.Envelope; //IPoint pt = new PointClass(); //pt.X = (env.XMin + env.XMax) / 2; //pt.Y = (env.YMin + env.YMax) / 2; //IPoint pt = pFeature.Shape as IPoint; //IEnvelope env = new EnvelopeClass(); //env.PutCoords(pt.X - 1000,pt.Y - 1000,pt.X +1000,pt.Y +1000); axMapControl1.CenterAt((IPoint)pFeature.Shape); Application.DoEvents(); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, pContainer, axMapControl1.ActiveView.Extent); axMapControl1.FlashShape(pFeature.Shape, 4, 300, pSimpleMarkerSymbol); 我采用相同的代碼,在我這邊可以實(shí)現(xiàn)高亮顯示,其中樓主有一個(gè)自定義的方法,GetColor(),可能是這個(gè)方法的問題,下面是我重寫的這個(gè)方法: public IColor GetRGBColor(int red, int green, int blue) { IRgbColor pColor = new RgbColorClass(); pColor.Red = red; pColor.Green = green; pColor.Blue = blue; return pColor as IColor; } 如果程序中報(bào)出什么錯(cuò)誤,請(qǐng)樓主提供出來,以便分析原因。 |

金蟲 (正式寫手)

金蟲 (正式寫手)

金蟲 (小有名氣)
英超煮帥

木蟲 (著名寫手)
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