Aspose.cad .net （23.7.0.0）dwg中多图框转PDF时，缩放位置不正确。我的代码和图纸都在压缩包里。我的缩放代码：
rasterizationOptions.RelativePosition = new Aspose.CAD.PointF
{
X = (float)( boxMinPt.X - cadImage.MinPoint.X) / width,
Y = (float)(cadImage.MaxPoint.Y - boxMaxPt.Y ) / height,
};
rasterizationOptions.RelativeScale = (float)(mapHeight) / (float)height;
缩放后只输出了部分图纸，请帮忙解答一下是什么问题。
test.zip (407.3 KB)
@hardp,
你好.
看来RelativePosition在这里不合适。 您能否尝试一下这个替换活动视图的示例是否符合您的需求：
using (CadImage cadImage = (CadImage)Aspose.CAD.Image.Load(fileName))
{
Point3D boxMinPt = new Point3D(180137.0, 86426.0, 0.0);
Point3D boxMaxPt = new Point3D(269185.0, 128426.0, 0.0);
PdfOptions pdfOptions = new PdfOptions();
CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions();
double mapWidth = boxMaxPt.X - boxMinPt.X;
double mapHeight = boxMaxPt.Y - boxMinPt.Y;
rasterizationOptions.NoScaling = true;
Point topLeft = new Point((int)cadImage.MinPoint.X, (int)cadImage.MaxPoint.Y);
rasterizationOptions.PageWidth = (int)mapWidth;
rasterizationOptions.PageHeight = (int)mapHeight;
CadVportTableObject newView = new CadVportTableObject();
// note: exactly such table name is required for active view
newView.Name = "*Active";
newView.CenterPoint.X = topLeft.X + mapWidth / 2;
newView.CenterPoint.Y = topLeft.Y - mapHeight / 2;
newView.ViewHeight = cadImage.Height / 2;
newView.UseAspectRatio = true;
newView.ViewAspectRatio = mapWidth / mapHeight;
// search for active viewport and replace it
for (int i = 0; i < cadImage.ViewPorts.Count; i++)
{
CadVportTableObject currentView = (CadVportTableObject)(cadImage.ViewPorts[i]);
if ((currentView.Name == null && cadImage.ViewPorts.Count == 1) ||
string.Equals(currentView.Name.ToLowerInvariant(), "*active"))
{
cadImage.ViewPorts[i] = newView;
break;
}
}
//将窗口导出选项应用于PDF选项
pdfOptions.VectorRasterizationOptions = rasterizationOptions;
cadImage.Save("result.pdf", pdfOptions);
}
我用你的代码用其他的dwg文件导出pdf后只有一部分。
test-1.zip (351.3 KB)
我导出PDF的设置代码：
if (File.Exists(ctbPath))
{
string ctbFile = layoutInfo.Item3.CurrentStyleSheet;
ctbFileStream = new FileStream(ctbPath, FileMode.Open);
rasterizationOptions.CtbSources = new Dictionary<string, Stream>();
rasterizationOptions.CtbSources.Add(ctbFile, ctbFileStream);
}
rasterizationOptions.DrawType = CadDrawTypeMode.UseObjectColor;
rasterizationOptions.VisibilityMode = VisibilityMode.AsPrint;
rasterizationOptions.Zoom = 1f;
if (fontPath != null && fontPath.Length > 0)
{
rasterizationOptions.ShxFonts = fontPath;
}
rasterizationOptions.Layouts = new string[] { layoutInfo.Item1 };
//rasterizationOptions.Layouts = new string[] { “布局1” };
@hardp,
你好。
您可以检查一下这是否更好：
using (CadImage cadImage = (CadImage)Aspose.CAD.Image.Load(fileName))
{
Point3D boxMinPt = new Point3D(180137.0, 86426.0, 0.0);
Point3D boxMaxPt = new Point3D(269185.0, 128426.0, 0.0);
PdfOptions pdfOptions = new PdfOptions();
CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions();
double mapWidth = boxMaxPt.X - boxMinPt.X;
double mapHeight = boxMaxPt.Y - boxMinPt.Y;
rasterizationOptions.NoScaling = true;
Point topLeft = new Point((int)boxMinPt.X, (int)boxMaxPt.Y);
rasterizationOptions.PageWidth = (int)mapWidth;
rasterizationOptions.PageHeight = (int)mapHeight;
CadVportTableObject newView = new CadVportTableObject();
// note: exactly such table name is required for active view
newView.Name = "*Active";
newView.CenterPoint.X = topLeft.X + mapWidth / 2;
newView.CenterPoint.Y = topLeft.Y - mapHeight / 2;
newView.ViewHeight = mapHeight;
newView.UseAspectRatio = true;
newView.ViewAspectRatio = mapWidth / mapHeight;
// search for active viewport and replace it
for (int i = 0; i < cadImage.ViewPorts.Count; i++)
{
CadVportTableObject currentView = (CadVportTableObject)(cadImage.ViewPorts[i]);
if ((currentView.Name == null && cadImage.ViewPorts.Count == 1) ||
string.Equals(currentView.Name.ToLowerInvariant(), "*active"))
{
cadImage.ViewPorts[i] = newView;
break;
}
}
pdfOptions.VectorRasterizationOptions = rasterizationOptions;
cadImage.Save("result.pdf", pdfOptions);
}
您能否澄清“test-1.dwg”的目标？ 您想仅导出白盒内的区域吗？
@hardp,
看起来同样的方法可以解决问题（我添加了一些间隙，因此边框也可见）：
using (CadImage cadImage = (CadImage)Aspose.CAD.Image.Load(fileName))
{
int gap = 50;
Point3D boxMinPt = new Point3D(-1077122 - gap, -34679 - gap, 0.0);
Point3D boxMaxPt = new Point3D(-1035122 + gap, -4979 + gap, 0.0);
PdfOptions pdfOptions = new PdfOptions();
CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions();
double mapWidth = boxMaxPt.X - boxMinPt.X;
double mapHeight = boxMaxPt.Y - boxMinPt.Y;
rasterizationOptions.NoScaling = true;
Point topLeft = new Point((int)boxMinPt.X, (int)boxMaxPt.Y);
rasterizationOptions.PageWidth = (int)mapWidth;
rasterizationOptions.PageHeight = (int)mapHeight;
CadVportTableObject newView = new CadVportTableObject();
// note: exactly such table name is required for active view
newView.Name = "*Active";
newView.CenterPoint.X = topLeft.X + mapWidth / 2;
newView.CenterPoint.Y = topLeft.Y - mapHeight / 2;
newView.ViewHeight = mapHeight;
newView.UseAspectRatio = true;
newView.ViewAspectRatio = mapWidth / mapHeight;
// search for active viewport and replace it
for (int i = 0; i < cadImage.ViewPorts.Count; i++)
{
CadVportTableObject currentView = (CadVportTableObject)(cadImage.ViewPorts[i]);
if ((currentView.Name == null && cadImage.ViewPorts.Count == 1) ||
string.Equals(currentView.Name.ToLowerInvariant(), "*active"))
{
cadImage.ViewPorts[i] = newView;
break;
}
}
rasterizationOptions.DrawType = CadDrawTypeMode.UseObjectColor;
rasterizationOptions.VisibilityMode = VisibilityMode.AsPrint;
rasterizationOptions.Zoom = 1f;
if (fontPath != null && fontPath.Length > 0)
{
rasterizationOptions.ShxFonts = fontPath;
}
rasterizationOptions.Layouts = new string[] { "Model" };
pdfOptions.VectorRasterizationOptions = rasterizationOptions;
cadImage.Save("result.pdf", pdfOptions);
}
输出的pdf 尺寸能等比例缩放吗？
@hardp,
如果你的意思是这样的：
rasterizationOptions.PageWidth = (int)mapWidth/4;
rasterizationOptions.PageHeight = (int)mapHeight/4;
是的，它有效。