图表绘图仪的亮度（动态数据显示）C＃ [英] Brightness of chartplotter (Dynamic Data Display) C#

问题描述

我正在使用Microsoft Visual Studio 2010，包括参考动态数据显示。
我想制作一个控制地图亮度的滚动条。
我试图找到像亮度或类似的东西，但没有成功的属性。谢谢帮帮朋友：

I'm using Microsoft Visual Studio 2010, including reference Dynamic Data Display. I'm want to make an scroll bar that control of the brightness of the map . I'm tried to find a property like brightness or something like it but without a success. Thank for help friends. :)

推荐答案

您可以通过设置背景到不同的RGB值。每个值的范围从0（最暗）到255（最亮）。首先设置最亮的颜色，例如

You can control the brightness of the plotter by setting its Background to different RGB values. Each value has a range from 0 (Darkest) to 255 (Brightest). First set a brightest color, for example

Byte R = 255;
Byte G = 255;
Byte B = 255;

并定义一个因子（范围从 0.5 （0.0）是全黑色，所以我将下限设置为 0.5 ，它是灰色的。）

And define a factor (range from 0.5 to 1.0) that is controlled by the slider.(0.0 is total blackness, so I set the lower range as 0.5 which is gray).

double minFactor = 0.5;
double maxFactor = 1.0;
double factor = maxFactor; //initially, brightest

然后背景的绘图仪

Color color = Color.FromRgb((Byte)(factor*R), (Byte)(factor*G), (Byte)(factor*B));
plotter.Background = new SolidColorBrush(color);

这是滑块如何控制亮度。

And this is how the slider controls the brightness.

Slider slider = new Slider();
slider.Value = factor;
slider.Maximum = maxFactor;
slider.Minimum = minFactor;
slider.ValueChanged += (s, e) =>
{
    var newFactor = e.NewValue;
    Color newColor = Color.FromRgb((Byte)(newFactor * R), (Byte)(newFactor * G), (Byte)(newFactor * B));
    plotter.Background = new SolidColorBrush(newColor);
};

地图亮度

a。为绘图仪设置黑色背景

a. Set a dark background for plotter

plotter.Background = new SolidColorBrush(Colors.Black);

b。隐藏网格

plotter.AxisGrid.Visibility = System.Windows.Visibility.Collapsed;

c。通过滑块调整地图的不透明度

c. Adjust map's Opacity by slider

slider.ValueChanged += (s, e) =>
{
    var newFactor = e.NewValue;
    map.Opacity = newFactor;
    //Color newColor = Color.FromRgb((Byte)(newFactor * R), (Byte)(newFactor * G), (Byte)(newFactor * B));
    //plotter.Background = new SolidColorBrush(newColor);
}

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