public async Task <Stream> PlotToStream(ViewPortViewModelBase viewModel, Drawing drawing, ViewPort viewPort)
{
var stream = new MemoryStream();
IPlotterFactory plotterFactory = viewModel switch
{
PdfPlotterViewModel _ => _pdfPlotterFactory,
SvgPlotterViewModel _ => _svgPlotterFactory,
_ => throw new System.Exception($"Unexpected view model: {viewModel?.GetType().Name}"),
};
var plotter = plotterFactory.CreatePlotter(viewModel);
await plotter.Plot(drawing, viewPort, stream, _workspace.FileSystemService.GetContentResolverRelativeToPath(drawing.Settings.FileName));
stream.Seek(0, SeekOrigin.Begin);
return(stream);
}
public ViewPortViewModelBase CreateAndPopulateViewModel(ClientPlotSettings settings, DrawingSettings drawingSettings, string plotTypeOverride = null)
{
ViewPortViewModelBase viewModel = null;
switch (plotTypeOverride ?? settings.PlotType)
{
case "pdf":
var pdfViewModel = (PdfPlotterViewModel)_pdfPlotterFactory.CreatePlotterViewModel();
pdfViewModel.DisplayWidth = settings.Width;
pdfViewModel.DisplayHeight = settings.Height;
viewModel = pdfViewModel;
break;
case "svg":
var svgViewModel = (SvgPlotterViewModel)_svgPlotterFactory.CreatePlotterViewModel();
svgViewModel.PlotAsDocument = true;
svgViewModel.DisplayWidth = settings.Width;
svgViewModel.DisplayHeight = settings.Height;
svgViewModel.OutputWidth = settings.Width;
svgViewModel.OutputHeight = settings.Height;
viewModel = svgViewModel;
break;
}
if (viewModel is object)
{
var transform = _workspace.ActiveViewPort.GetTransformationMatrixWindowsStyle(Agent.Width, Agent.Height).Inverse();
var topLeft = transform.Transform(settings.Viewport.TopLeft.ToPoint());
var bottomRight = transform.Transform(settings.Viewport.BottomRight.ToPoint());
viewModel.ViewPortType = settings.ViewPortType;
viewModel.ScalingType = settings.ScalingType;
var(scaleA, scaleB) = settings.GetUnitAdjustedScale(drawingSettings);
viewModel.ScaleA = scaleA;
viewModel.ScaleB = scaleB;
viewModel.BottomLeft = new Point(topLeft.X, bottomRight.Y, 0.0);
viewModel.TopRight = new Point(bottomRight.X, topLeft.Y, 0.0);
}
return(viewModel);
}
