public void AspectRatioIsKept(int maxWidth, int maxHeight)
{
ConverterDxfRect src = new ConverterDxfRect(0, 5, 0, 5);
PdfMeasurement pdfMaxWidth = PdfMeasurement.Points(maxWidth);
PdfMeasurement pdfMaxHeight = PdfMeasurement.Points(maxHeight);
ConverterPdfRect sut = ConverterPdfRect.KeepAspectRatio(src, pdfMaxWidth, pdfMaxHeight);
Assert.True(sut.Width.AsPoints() <= maxWidth);
Assert.True(sut.Height.AsPoints() <= maxHeight);
Assert.Equal(src.Width, src.Height); // otherwise test below is wrong
if (maxWidth > maxHeight)
{
Assert.Equal(pdfMaxHeight, sut.Height);
}
else
{
Assert.Equal(pdfMaxWidth, sut.Width);
}
}
public override async Task Plot(Drawing drawing, ViewPort viewPort, Stream outputStream, Func <string, Task <byte[]> > contentResolver)
{
var converter = new DxfToPdfConverter();
var fileSettings = new DxfFileSettings()
{
FileVersion = DxfFileVersion.R2004,
};
var dxfFile = DxfFileHandler.ToDxfFile(drawing, viewPort, fileSettings);
var pageWidth = new PdfMeasurement(ViewModel.DisplayWidth, ViewModel.DisplayUnit);
var pageHeight = new PdfMeasurement(ViewModel.DisplayHeight, ViewModel.DisplayUnit);
var plotViewPort = ViewModel.ViewPort;
var viewPortWidth = ViewModel.DisplayWidth / ViewModel.DisplayHeight * plotViewPort.ViewHeight;
var dxfRect = new ConverterDxfRect(plotViewPort.BottomLeft.X, plotViewPort.BottomLeft.X + viewPortWidth, plotViewPort.BottomLeft.Y, plotViewPort.BottomLeft.Y + plotViewPort.ViewHeight);
var pdfRect = new ConverterPdfRect(
new PdfMeasurement(0.0, ViewModel.DisplayUnit),
new PdfMeasurement(ViewModel.DisplayWidth, ViewModel.DisplayUnit),
new PdfMeasurement(0.0, ViewModel.DisplayUnit),
new PdfMeasurement(ViewModel.DisplayHeight, ViewModel.DisplayUnit));
var options = new DxfToPdfConverterOptions(pageWidth, pageHeight, dxfRect, pdfRect, contentResolver: contentResolver);
var pdfFile = await converter.Convert(dxfFile, options);
pdfFile.Save(outputStream);
}
