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关于Arcengine for .net 的一些问题

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悬赏园豆:100 [已关闭问题] 关闭于 2014-07-06 22:46
一、在图层上加点时,不能修改其样式esriSimpleMarkerStyle.esriSMSSquare,运行时看到点的样式都是esriSMSCircle。代码如下:
    IMarkerElement pMarkerElement;
    IMarkerSymbol pMarkerSymbol;
 
    ISimpleMarkerSymbol pSimpleMarkerSymbol = new SimpleMarkerSymbolClass();
 
    pSimpleMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSSquare;
    pSimpleMarkerSymbol.Size = 10;
    pSimpleMarkerSymbol.Outline = true;
    pSimpleMarkerSymbol.OutlineSize = 4;
 
    pRGBColor.Red = 212;
    pRGBColor.Green = 212;
    pRGBColor.Blue = 212;
    pSimpleMarkerSymbol.OutlineColor = pRGBColor;
 
    pMarkerSymbol = pSimpleMarkerSymbol as IMarkerSymbol;
    //pMarkerSymbol.Size = 20;
 
    //pMarkerSymbol.Color = pRGBColor;
 
    //点
    IElement pElement = new MarkerElementClass();
    pElement.Geometry = point as IGeometry;
    pMarkerElement = pElement as IMarkerElement;
    pMarkerElement.Symbol = pMarkerSymbol;
 
    IGraphicsContainer3D pGC3D = tempLayer as IGraphicsContainer3D;
    pGC3D.AddElements(pElement);
 
    二、加载地图后,关掉子窗口,再重新打开子窗口,原来地图上的文字(ITextElement)变成方块了。
    
    三、鼠标滚轮缩放地图事件可否直接加到axGlobeControl控件上?现在是加到窗体上的,每次需要窗体获得焦点,而axGlobeControl控件失去焦点才能缩放。
    四、每次加载地图的时候,都要绘制点、文字的集合,导致加载的过程消耗时间长。不知道有没有提升性能的方法呢?
    五、绘制点时,其Symbol选用CharacterMarkerSymbol,但也没有显示出字符来,还是显示的是圆的样式。代码如下:
    IMarkerElement pMarkerElement;
    IMarkerSymbol pMarkerSymbol;
 
    ICharacterMarkerSymbol pCharacterSymbol = new CharacterMarkerSymbol();
 
    stdole.IFontDisp pFont = new stdole.StdFont() as stdole.IFontDisp;
    pFont.Name = "ESRI Default Marker";
    pFont.Size = 20;
    pCharacterSymbol.Font=pFont;
    pCharacterSymbol.CharacterIndex = 34;
 
 
    pRGBColor.Red = 212;
    pRGBColor.Green = 212;
    pRGBColor.Blue = 212;
    pCharacterSymbol.Color = pRGBColor;
 
    pMarkerSymbol = pCharacterSymbol as IMarkerSymbol;
 
 
    //点
    IElement pElement = new MarkerElementClass();
    pElement.Geometry = point as IGeometry;
    pMarkerElement = pElement as IMarkerElement;
    pMarkerElement.Symbol = pMarkerSymbol;
 
 
    IGraphicsContainer3D pGC3D = tempLayer as IGraphicsContainer3D;
    pGC3D.AddElements(pElement);
沧海无极的主页 沧海无极 | 初学一级 | 园豆:106
提问于:2014-07-02 15:36
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