صادرات بخشی از تصویر
Contents
[
Hide
]چگونه بخشی از تصویر را صادر کنیم
مسئله: چگونه بخشی از تصویر را صادر کنیم (CADNET-504).
نکات: برای انجام این کار، میتوانید از روش RenderPartOfImage استفاده کنید که به دنبال نمای فعال میگردد و آن را جایگزین میکند.
مثال:
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
private static void RenderPartOfImage(PointF topLeft, double tileWidth, double tileHeight, string outputFileName) | |
{ | |
CadVportTableObject newView = new CadVportTableObject(); | |
System.Console.WriteLine("Top left = " + topLeft.X + " " + topLeft.Y + " width= " + tileWidth + " height= " + tileHeight); | |
// note: exactly such table name is required for active view | |
newView.Name = "*Active"; | |
newView.CenterPoint.X = topLeft.X + (tileWidth / 2); | |
newView.CenterPoint.Y = topLeft.Y - (tileHeight / 2); | |
newView.ViewHeight.Value = tileHeight; | |
newView.ViewAspectRatio.Value = tileWidth / tileHeight; | |
// search for active viewport and replace it | |
for (int i = 0; i < cadImage.ViewPorts.Count; i++) | |
{ | |
CadVportTableObject currentView = (CadVportTableObject)(cadImage.ViewPorts[i]); | |
if ((currentView.TableName == null && cadImage.ViewPorts.Count == 1) || | |
string.Equals(currentView.TableName.ToLowerInvariant(), "*active")) | |
{ | |
cadImage.ViewPorts[i] = newView; | |
break; | |
} | |
} | |
PngOptions pngOptions = GetSaveOptions(true); | |
pngOptions.VectorRasterizationOptions.PageHeight = (float)tileHeight * 100f; | |
pngOptions.VectorRasterizationOptions.PageWidth = (float)tileWidth * 100f; | |
cadImage.Save(outputFileName, pngOptions); | |
} |