Oct 29, 2012 · QPen has a default width of 0. This is a special value that means cosmetic is true and the width is actually 1. So if you don't want the pen to be cosmetic you have to set it to the desired width. You might also need to set cosmetic to false. Here is a simple example:

Dec 18, 2013 · First of all, the type of CPen's width is int, so you have to use integer type. If you use second plan, below code is available, however, you have to concern about type and value of width. CImage image; float max_value = static_cast<float>(max(image.GetWidth(), image.GetHeight())); //get value for 1% float pen_width = max_value * 0.01f; CPen ...

Apr 13, 2022 · Regarding your "permanent pen": You can use GetStockObject with DC_PEN. This is a special pen that implicitly exists once for each DC. This is a special pen that implicitly exists once for each DC. The pen's color can be changed with SetDCPenColor , although its width cannot be changed.

Mar 4, 2012 · According to the documentation for Pen, The Width property is set to the value specified in the width parameter. A width of 0 will result in the Pen drawing as if the width were 1. It may be that that applies to any width less than one, not just widths that are precisely equal to 0.

Dec 5, 2017 · t = turtle.Pen() turtle.bgcolor("black") turtle.pensize(800) ... t.forward(120) You are making the mistake of mixing the functional interface to turtle with the object-oriented interface to turtle. You created your own turtle t, but you changed the pen size of the default turtle. If you want to change your turtle's pen size, you do: t.pensize(800)

Mar 28, 2022 · I need to increase the pen width for the below code using Painter/QPen, but nothing that I try works. Can someone please point me in the right direction? while c_len < MAX_LENGTH: # Set the pen color for this segment sat = 200 * (MAX_LENGTH - c_len) / MAX_LENGTH hue = (color + 130 * (height - y_s) / height) % 360 p.setPen(QPen(QColor_HSV(hue ...

Oct 28, 2014 · MSDN for GraphicsUnit. It's because you're working with Points and not Pixels and the variation in the width of the lines is the result of a rounding errors in the placement of the line and the width of the line in relation to how it gets rendered in pixels in the final product.

Sep 24, 2008 · aPen = New Pen(Color.Black) g.DrawEllipse(aPen, n.boxLeft, n.boxTop, n.getWidth(), n.getHeight) But I want to set the thickness of the line. How do I do it? Is it a property of the Pen or an argument to the DrawEllipse method? (NB : For some reason, the help is VisualStudio is failing me so I've got to hit the web anyway. Thought I'd try here ...

Dec 2, 2014 · It looks like changing the shape of the pen stroke itself isn't possible. turtle.shape('square') only changes the shape of the turtle, not the pen stroke. I suggest lowering the pen size, and creating a function to draw a rectangle. You could use this do draw the bars.

May 27, 2015 · pensize(width=None) Set or return the line thickness. Aliases: pensize | width Argument: width -- positive number Set the line thickness to width or return it. If resizemode is set to "auto" and turtleshape is a polygon, that polygon is drawn with the same line thickness.