在的WinForms多色线性渐变 [英] Multi-color linear gradient in WinForms

问题描述

如何创建的WinForms多色线性渐变？ System.Drawing.Drawing2D.LinearGradientBrush只允许两种颜色。

How to create multi-color linear gradient in WinForms? System.Drawing.Drawing2D.LinearGradientBrush allows only two colors.

推荐答案

同样的答案如下：在的WinForms 多多色对角线渐变-Color中的WinForms对角线梯度

same answer as here: Multi-color diagonal gradient in winforms Multi-color diagonal gradient in winforms

这里是一个小例子，你这篇文章的启发
http://www.bobpowell.net/linear.htm（多颜色混合）

here is a little example for you inspired by this article
http://www.bobpowell.net/linear.htm (Multiple colour blends)

void MainFormPaint(object sender, PaintEventArgs e)
{
  LinearGradientBrush br = new LinearGradientBrush(this.ClientRectangle, Color.Black, Color.Black, 0 , false);
  ColorBlend cb = new ColorBlend();
  cb.Positions = new[] {0, 1/6f, 2/6f, 3/6f, 4/6f, 5/6f, 1};
  cb.Colors = new[] {Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Blue, Color.Indigo, Color.Violet};
  br.InterpolationColors= cb;
  // rotate
  br.RotateTransform(45);
  // paint
  e.Graphics.FillRectangle(br, this.ClientRectangle);
}

下面是结果

希望这有助于

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