Winform中设置ZedGraph在生成多条曲线时随机采用不同的颜色

爱被打了一巴掌 2023-10-06 10:47 20阅读 0赞

## 场景 ##

Winform中实现ZedGraph的多条Y轴(附源码下载)：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/100132245][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_100132245]

史上最全Winform中使用ZedGraph教程与资源汇总整理(附资源下载)：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/102775001][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_102775001]

参考上面实现多条Y轴的基础上，想要在生成曲线的时候根据曲线的条数生成不同颜色的曲线，效果如下

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70][]

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## 实现 ##

首先新建一个想要作为曲线颜色的Color的list

List<Color> colorList = new List<Color>(){
                            Color.Blue,
                            Color.Red,
                            Color.Green,
                            Color.Magenta,
                            Color.MediumBlue,
                            Color.BlueViolet,
                            Color.Maroon,
                            Color.Chartreuse,
                            Color.Aqua,
                            Color.Indigo,
                            Color.Aquamarine,
                            Color.OrangeRed,
                            Color.Sienna,
                            Color.SeaGreen,
                            Color.Black,
                            Color.OliveDrab,
                            Color.Purple,
                            Color.Brown,
                            Color.Navy,
                            Color.BurlyWood,
                            Color.MediumSpringGreen,
                            Color.Chocolate,
                            Color.Salmon,
                            Color.SaddleBrown,
                            Color.RoyalBlue,
                            Color.Coral,
                            Color.Crimson,
                            Color.Tomato,
                            Color.Cyan,
                            Color.Lime,
                            Color.MediumVioletRed,
                            Color.MidnightBlue,
                            Color.Olive,
                            Color.Orange,
                            Color.SaddleBrown,
                            Color.HotPink,
                        };

然后将这个list转换为数组

Color[] colors = colorList.OrderBy(p => Guid.NewGuid().ToString()).ToArray();

然后在生成每一条曲线前通过如下获取Color对象

Color curveColor = new Color();
    curveColor = colors[index % colors.Length];

其中index是当前曲线的索引，即在循环生成曲线时的索引。

然后在生成曲线时就可以使用curveColor作为曲线的颜色。

LineItem myCurve = myPane.AddCurve("标题", list, curveColor, symbolType);

[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_100132245]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/100132245
[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_102775001]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/102775001
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200610125940463.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70
[https_blog.csdn.net_badao_liumang_qizhi]: https://blog.csdn.net/badao_liumang_qizhi