绘制曲线和创建 JPEG 的最佳平台

发布于 2024-11-08 01:58:23 字数 113 浏览 2 评论 0原文

我有一个曲线方程，我需要绘制如下：

((X^z)-1)/z = y

有谁知道如何绘制这条曲线并使用 python 或 .net 将其保存为图像？

原文

i have an equation of a curve that i need to draw like:

((X^z)-1)/z = y

does anyone know how i can draw this curve and save it as an image using python or .net?

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我做我的改变 2024-11-15 01:58:23

Python 中二维绘图的一个很好的库是 http://matplotlib.sourceforge.net/。生成的图可以直接从绘图对话框保存。

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如此安好 2024-11-15 01:58:23

下面是在 .NET/C# 中绘制曲线的示例：

参考资料：

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;

绘图代码：

const int imgSize = 500;
var bmp = new Bitmap(imgSize, imgSize);
using (var g = Graphics.FromImage(bmp))
{
    g.SmoothingMode = SmoothingMode.HighQuality;
    var points = new Point[imgSize];
    const int z = 10;
    g.FillRectangle(Brushes.White, 0, 0, bmp.Width, bmp.Height);

    for (var x = 0; x < imgSize; x++)
    {
        var y = bmp.Height - (x^z-1)/z;
        points[x] = new Point(x, y);
    }

    g.DrawCurve(Pens.Black, points);
}

bmp.Save(@"C:\Users\your_name_here\Desktop\myCurve.png", ImageFormat.Png);

我做了一些假设，例如使 Z 为常量。此外，图像大小如果固定为 500，并且绘图仅发生在笛卡尔平面的右上角（正/正）位置。但这就是你能弄清楚的所有事情。请注意，Y 需要调整，因为 Windows 在屏幕左上角绘制 0,0：var y = bmp.Height - (x^z-1)/z;

Here's an example of drawing your curve in .NET/C#:

References:

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;

Drawing Code:

const int imgSize = 500;
var bmp = new Bitmap(imgSize, imgSize);
using (var g = Graphics.FromImage(bmp))
{
    g.SmoothingMode = SmoothingMode.HighQuality;
    var points = new Point[imgSize];
    const int z = 10;
    g.FillRectangle(Brushes.White, 0, 0, bmp.Width, bmp.Height);

    for (var x = 0; x < imgSize; x++)
    {
        var y = bmp.Height - (x^z-1)/z;
        points[x] = new Point(x, y);
    }

    g.DrawCurve(Pens.Black, points);
}

bmp.Save(@"C:\Users\your_name_here\Desktop\myCurve.png", ImageFormat.Png);

I made some assumption such as making Z a constant. Also the image size if fixed at 500 and the plotting only happens in the upper-right (positive/positive) location of the cartesian plane. But that's all stuff you can figure out. Note that Y needs to be adjusted since Windows plots 0,0 at the upper left of the screen: var y = bmp.Height - (x^z-1)/z;

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