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| 发表于：2007-11-09 22:56:212楼 得分:0 |
IPictureElement pPictureElement = new BmpPictureElementClass();
string pPicturePath = Application.StartupPath + "\\ESRI_LOGO.bmp";
pPictureElement.ImportPictureFromFile(pPicturePath);
pPictureElement.SavePictureInDocument = true;
pPictureElement.MaintainAspectRatio = true;
#region 图形缩放
IEnvelope pEnvelope = new EnvelopeClass();
pEnvelope = this.axMapControl1.Extent;
//pEnvelope.PutCoords(1, 1, 2, 2);//location on the layout for the element图片尺寸
pEnvelope.Expand(0.1, 0.1, true); //原图片缩小比例
//double dEnvAspRatio = pEnvelope.Width / pEnvelope.Height;//长宽比
//if (pPictureElement.PictureAspectRatio > dEnvAspRatio)//缩放
//{
// pEnvelope.Expand(pPictureElement.PictureAspectRatio / dEnvAspRatio, 1, true);
//}
//else
//{
// pEnvelope.Expand(1, dEnvAspRatio / pPictureElement.PictureAspectRatio, true);
//}
#endregion
IElement pElement;
pElement = (IElement)pPictureElement;
pElement.Geometry = dPoint as IGeometry;
axMapControl1.ActiveView.GraphicsContainer.AddElement(pElement, 0);//Add the element to the graphics container将元素添加到MapPageLayout中
axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);//局部刷新Refresh the graphics | | |
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