I want to make my plotting code faster.

[goforlee]

Hi everyone,

I've been receiving amazing help from reading other people's posts on this forum. Thank you!

I've been working on capturing (or taking a screenshot of) specific coordinates using the attached function.

The code works fine, but it's extremely SLOW!!.

I expected it to take less than a second, but it takes at least 10 seconds. It executes all the way down to the "this.Show()" function almost immediately, but generating the actual file takes a long time.

Could you please help me out with this issue?

Thank you in advance!

private void CaptureAndSaveImage(Point3d startPoint, Point3d endPoint, string outputPath)
{
    
    Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
    Database db = doc.Database;
    using (DocumentLock docLock = doc.LockDocument())

    {
        // Start a transaction
        using (Transaction trans = db.TransactionManager.StartTransaction())
        {

            // Get the current layout
            //Layout layout = trans.GetObject(db.CurrentSpaceId, OpenMode.ForRead) as Layout;
            BlockTableRecord btr = (BlockTableRecord)trans.GetObject(db.CurrentSpaceId, OpenMode.ForRead);

            Layout layout = (Layout)trans.GetObject(btr.LayoutId, OpenMode.ForRead);
            //ObjectId modelSpaceId = SymbolUtilityServices.GetBlockModelSpaceId(db);
            //Layout layout = trans.GetObject(db.CurrentSpaceId, OpenMode.ForRead) as Layout;
            // Create a new PlotInfo object

            PlotSettings plotSettings = new PlotSettings(layout.ModelType);
            plotSettings.CopyFrom(layout);

            // Get the PlotSettingsValidator
            PlotSettingsValidator plotSettingsValidator = PlotSettingsValidator.Current;

            // Calculate the extents from the two points
            Extents2d plotWindowExtents = new Extents2d(startPoint.X, startPoint.Y, endPoint.X, endPoint.Y);

            plotSettings.ScaleLineweights = true;


            // Set the plot area
            plotSettingsValidator.SetPlotWindowArea(plotSettings, plotWindowExtents);
            plotSettingsValidator.SetPlotType(plotSettings, Autodesk.AutoCAD.DatabaseServices.PlotType.Window);
            plotSettingsValidator.SetUseStandardScale(plotSettings, true);

            plotSettingsValidator.SetStdScaleType(plotSettings, StdScaleType.ScaleToFit);
            plotSettingsValidator.SetPlotRotation(plotSettings, PlotRotation.Degrees180);
            
            plotSettingsValidator.SetPlotCentered(plotSettings, false);
            // Set the plot configuration name
            plotSettingsValidator.SetPlotConfigurationName(plotSettings, "PublishToWeb PNG.pc3", "VGA_(640.00_x_480.00_Pixels)");

            //plotSettingsValidator.SetPlotConfigurationName(plotSettings, "AutoCAD PDF (Web and Mobile).pc3", "ISO_A4_(210.00_x_297.00_MM)");
            // Update the PlotInfo object with the new settings
            PlotInfo plotInfo = new PlotInfo();
            plotInfo.Layout = btr.LayoutId;
            plotInfo.OverrideSettings = plotSettings;

            PlotInfoValidator piv = new PlotInfoValidator();

            piv.MediaMatchingPolicy = MatchingPolicy.MatchEnabled;

            piv.Validate(plotInfo);

            //// Commit the changes to the transaction
            trans.Commit();

            // Plot the image
            using (PlotEngine plotEngine = PlotFactory.CreatePublishEngine())
            {
                plotEngine.BeginPlot(null, null);

                plotEngine.BeginDocument(plotInfo, doc.Name, null, 1, true, Path.Combine("C:\\Users\\YR_VM\\Desktop\\cad backup", Guid.NewGuid() + ".png"));

                // Define the plot output
                PlotPageInfo pageInfo = new PlotPageInfo();
                try
                {
                    plotEngine.BeginPage(pageInfo, plotInfo, true, null);

                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.ToString());
                }
                plotEngine.BeginGenerateGraphics(null);
                plotEngine.EndGenerateGraphics(null);


                plotEngine.EndPage(null);
                plotEngine.EndDocument(null);

                // End the plot
                plotEngine.EndPlot(null);
            }
        }
    }


    this.Show();
}

[ActivistInvestor]

Plotting would obviously take longer than a graphics dump of the current view.

While output to PDF may not be possible using other means, the code at this link will generate a screenshot.

[goforlee]

I am not really great at coding... but the link doesn't seem like I can specify coordinates of objects as my code. Did I understand it wrong? or I can implement that kind of function with the code in the link ??

[ActivistInvestor · Accepted solution]

The code at that link really doesn't specify what to take a snapshot of it just shows how to take a snapshot. So, you would have to first set the view before taking the snapshot through code.