graphics

问题 I have UserControl of Size 300*200. and rectangle of size 300*200. graphics.DrawRectangle(Pens.Black, 0, 0, 300, 200); When I rotate rectangle in userControl by 30 degree, I get rotated rectangle but it is outsized. PointF center = new PointF(150,100); graphics.FillRectangle(Brushes.Black, center.X, center.Y, 2, 2); // draw center point. using (Matrix matrix = new Matrix()) { matrix.RotateAt(30, center); graphics.Transform = matrix; graphics.DrawRectangle(Pens.Black, 0, 0, 300, 200); graphics

问题 http://cache.kotaku.com/assets/resources/2008/02/dbzburstcell.jpg -edit- bassically just detailed vectorized 2d games. When making a side scroller in pygame or any other comparable 2d framework with python, can you utilize graphics such as in the above link? Thanks. 回答1: You can always render your vectors to bitmaps with enough resolution and use the rendered version in the game, instead of rendering everything in runtime -- that seems to be what the game you linked above does. That said, you

问题 I'm trying to create a violin plot in R from count data. The data I use is a number of mutations that is found in each sample for each source. It looks something like this: 2 Source1 8 Source2 0 Source1 1 Source1 9 Source2 ... I already used the code below to create several plots. ggplot(df_combined, aes(factor(names), y=mutations)) + geom_violin() + geom_boxplot(width=.1, outlier.size=0, fill="grey50") + stat_summary(fun.y=median, geom="point", fill="white", shape=21, size=4) + xlab("Source"

问题 I'm trying to create a violin plot in R from count data. The data I use is a number of mutations that is found in each sample for each source. It looks something like this: 2 Source1 8 Source2 0 Source1 1 Source1 9 Source2 ... I already used the code below to create several plots. ggplot(df_combined, aes(factor(names), y=mutations)) + geom_violin() + geom_boxplot(width=.1, outlier.size=0, fill="grey50") + stat_summary(fun.y=median, geom="point", fill="white", shape=21, size=4) + xlab("Source"

问题 I am new to Linux system calls.My question is do we have a system call in Linux to plot points on screen.I googled it but could not find any simple explanation for it. I want to write a simple C program in Linux that directly plot a point on screen without the help of a C graphics library. If there is no such system call how can I create my own system call to plot point on screen? 回答1: The lowest level hardware independent graphics interface on linux is the framebuffer. This is manipulated by

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . Improve this question Is there a browser which supports CSS shaders? 回答1: At the time of this writing, CSS Custom Filters, formerly known as CSS Shaders, are not available in any browser. They were an experimental feature available in WebKit Nightly and Chrome (under a flag) for a

问题 I want to convert some color values from well know HSL to less known HSLum how to do it? hsl(0, 1.0, 0.5) - rgb red is hslum(0, 1.0., 0.54) hsl(120, 1.0, 0.5 - rgb green is hslum(0, 1.0, 0.80) hsl(240, 1.0, 0.5) - rgb blue is hslum(0, 1.0, 0.44) As far as I know luminance (not lightness) is calculate in such way: Y = 0.2126 * R + 0.7152 * G + 0.0722 * B I read some articles: Luminance (relative), 21296247, HSL and HSV, luma, Lightness, Munsell but not found solution? As far I know CIELab 1976

问题 I want to convert some color values from well know HSL to less known HSLum how to do it? hsl(0, 1.0, 0.5) - rgb red is hslum(0, 1.0., 0.54) hsl(120, 1.0, 0.5 - rgb green is hslum(0, 1.0, 0.80) hsl(240, 1.0, 0.5) - rgb blue is hslum(0, 1.0, 0.44) As far as I know luminance (not lightness) is calculate in such way: Y = 0.2126 * R + 0.7152 * G + 0.0722 * B I read some articles: Luminance (relative), 21296247, HSL and HSV, luma, Lightness, Munsell but not found solution? As far I know CIELab 1976

问题 My teacher said that in a graph I must label the axis like 0, 0.25, 0.5 not 0.00,0.25,0.50,... . I know how to label it like 0.00,0.25,0.50 ( plt.yticks(np.arange(-1.5,1.5,.25)) ), however, I don't know how to plot the ticklabels with different precision. I've tried to do it like plt.yticks(np.arange(-2,2,1)) plt.yticks(np.arange(-2.25,2.25,1)) plt.yticks(np.arange(-1.5,2.5,1)) without avail. 回答1: This was already answered, for example here Matplotlib: Specify format of floats for tick lables

问题 My teacher said that in a graph I must label the axis like 0, 0.25, 0.5 not 0.00,0.25,0.50,... . I know how to label it like 0.00,0.25,0.50 ( plt.yticks(np.arange(-1.5,1.5,.25)) ), however, I don't know how to plot the ticklabels with different precision. I've tried to do it like plt.yticks(np.arange(-2,2,1)) plt.yticks(np.arange(-2.25,2.25,1)) plt.yticks(np.arange(-1.5,2.5,1)) without avail. 回答1: This was already answered, for example here Matplotlib: Specify format of floats for tick lables