PDFsharp & MigraDoc Foundation

PDFsharp - A .NET library for processing PDF & MigraDoc Foundation - Creating documents on the fly
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PostPosted: Fri Mar 22, 2024 12:56 pm 
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Joined: Fri Mar 22, 2024 12:50 pm
Posts: 1
Hi,

I have a rectangle that has width 150mm and height 200mm. I also have a circle that is 200mm.

I've drawn the rectangle.
I'm trying to calculate how to draw an arc that is only the portion of the circle that can fit inside the rectangle.
I can do this manually with the code below, but I'm not sure how to calculate the start and sweep angle of the arc.

Example files of expected output - https://we.tl/t-6RsQRG8qk7

Code:
PdfDocument document = new PdfDocument();
        PdfPage page = document.AddPage();
        XGraphics gfx = XGraphics.FromPdfPage(page, XGraphicsUnit.Millimeter);
        XPen pen = new XPen(XColors.Black, 1); // Pen for drawing

        // Rectangle properties
        double rectWidth = 150;
        double rectHeight = 200;

        // Circle properties
        double circleDiameter = 200;

        gfx.DrawRectangle(pen, 10, 10, rectWidth, rectHeight);

        gfx.DrawArc(pen, 10, 10, circleDiameter, circleDiameter, 60, 240); // Right straight side
        gfx.DrawArc(pen, -40, 10, circleDiameter, circleDiameter, 240, 240); // Left straight side

        const string filename = "TEST1.pdf";
        document.Save(filename);


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