using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
namespace HslCommunication.BasicFramework
{
/*******************************************************************************
*
* Create Date:2017-05-03 16:56:39
* 应该包含常用的绘图方法，资源，比如绘制直方图，居中的文本等
*
*
********************************************************************************/
/// <summary>
/// 图形的方向
/// </summary>
public enum GraphDirection
{
/// <summary>
/// 向上
/// </summary>
Upward=1,
/// <summary>
/// 向下
/// </summary>
Downward=2,
/// <summary>
/// 向左
/// </summary>
Ledtward=3,
/// <summary>
/// 向右
/// </summary>
Rightward=4,
}
/// <summary>
/// 包含整型和字符串描述的数据类型
/// </summary>
public struct Paintdata
{
/// <summary>
/// 数量
/// </summary>
public int Count { get; set; }
/// <summary>
/// 描述
/// </summary>
public string Description { get; set; }
}
/// <summary>
/// 图形的呈现方式
/// </summary>
public enum GraphicRender
{
/// <summary>
/// 直方图
/// </summary>
Histogram = 1,
/// <summary>
/// 饼图
/// </summary>
Piechart,
/// <summary>
/// 折线图
/// </summary>
Linegraph,
}
/// <summary>
/// 静态类，包含了几个常用的画图方法，获取字符串，绘制小三角等
/// </summary>
public static class SoftPainting
{
/********************************************************************************************************
*
* 以下都是辅助绘图的静态方法
*
*
*
*
***********************************************************************************************************/
/// <summary>
/// 获取一个直方图
/// </summary>
/// <param name="array">数据数组</param>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
/// <param name="degree">刻度划分等级</param>
/// <param name="lineColor">线条颜色</param>
/// <returns></returns>
public static Bitmap GetGraphicFromArray(int[] array, int width, int height, int degree, Color lineColor)
{
if (width < 10 && height < 10) throw new ArgumentException("长宽不能小于等于10");
int Max = array.Max();
int Min = 0;
int Count = array.Length;
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Far;
Pen dash = new Pen(Color.LightGray, 1f);
dash.DashStyle = System.Drawing.Drawing2D.DashStyle.Custom;
dash.DashPattern = new float[] { 5, 5 };
Font font_8 = new Font("宋体", 9f);
Bitmap bitmap = new Bitmap(width, height);
Graphics g = Graphics.FromImage(bitmap);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
g.Clear(Color.White);
//计算边框长度及图像边距
int left = 60, right = 8, up = 8, down = 8;
int paint_width = width - left - right;
int paint_heigh = height - up - down;
Rectangle rect = new Rectangle(left - 1, up - 1, paint_width + 1, paint_heigh + 1);
//g.FillRectangle(Brushes.WhiteSmoke, rect);
g.DrawLine(Pens.Gray, left - 1, up, left + paint_width + 1, up);
g.DrawLine(Pens.Gray, left - 1, up + paint_heigh + 1, left + paint_width + 1, up + paint_heigh + 1);
g.DrawLine(Pens.Gray, left - 1, up - 1, left - 1, up + paint_heigh + 1);
//画刻度
//for (int i = 0; i <= degree; i++)
//{
// int value = (Max - Min) * i / degree + Min;
// int location = (int)ComputePaintLocationY(Max, Min, paint_heigh, value) + up + 1;
// g.DrawLine(Pens.DimGray, left - 1, location, left - 4, location);
// if (i != 0 && i < degree)
// {
// g.DrawLine(dash, left, location, width - right, location);
// }
// g.DrawString(value.ToString(), font_8, Brushes.DimGray, new Rectangle(-5, location - 4, left, 10), sf);
//}
PaintCoordinateDivide(g, Pens.DimGray, dash, font_8, Brushes.DimGray, sf, degree, Max, Min, width, height, left, right, up, down);
PointF[] alldata = new PointF[array.Length];
for (int i = 0; i < array.Length; i++)
{
alldata[i].X = paint_width * 1.0f / (array.Length - 1) * i + left;
alldata[i].Y = ComputePaintLocationY(Max, Min, paint_heigh, array[i]) + up + 1;
}
Pen pen = new Pen(lineColor);
g.DrawLines(pen, alldata);
pen.Dispose();
dash.Dispose();
font_8.Dispose();
sf.Dispose();
g.Dispose();
return bitmap;
}
/// <summary>
/// 计算绘图时的相对偏移值
/// </summary>
/// <param name="max">0-100分的最大值，就是指准备绘制的最大值</param>
/// <param name="min">0-100分的最小值，就是指准备绘制的最小值</param>
/// <param name="height">实际绘图区域的高度</param>
/// <param name="value">需要绘制数据的当前值</param>
/// <returns>相对于0的位置，还需要增加上面的偏值</returns>
public static float ComputePaintLocationY(int max, int min, int height, int value)
{
return height - (value - min) * 1.0f / (max - min) * height;
}
/// <summary>
/// 计算绘图时的相对偏移值
/// </summary>
/// <param name="max">0-100分的最大值，就是指准备绘制的最大值</param>
/// <param name="min">0-100分的最小值，就是指准备绘制的最小值</param>
/// <param name="height">实际绘图区域的高度</param>
/// <param name="value">需要绘制数据的当前值</param>
/// <returns>相对于0的位置，还需要增加上面的偏值</returns>
public static float ComputePaintLocationY( float max, float min, int height, float value )
{
return height - (value - min) / (max - min) * height;
}
/// <summary>
/// 绘制坐标系中的刻度线
/// </summary>
/// <param name="g"></param>
/// <param name="penLine"></param>
/// <param name="penDash"></param>
/// <param name="font"></param>
/// <param name="brush"></param>
/// <param name="sf"></param>
/// <param name="degree"></param>
/// <param name="max"></param>
/// <param name="min"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="left"></param>
/// <param name="right"></param>
/// <param name="up"></param>
/// <param name="down"></param>
public static void PaintCoordinateDivide(
Graphics g,
Pen penLine,
Pen penDash,
Font font,
Brush brush,
StringFormat sf,
int degree,
int max,
int min,
int width,
int height,
int left = 60,
int right = 8,
int up = 8,
int down = 8
)
{
for (int i = 0; i <= degree; i++)
{
int value = (max - min) * i / degree + min;
int location = (int)ComputePaintLocationY(max, min, (height - up - down), value) + up + 1;
g.DrawLine(penLine, left - 1, location, left - 4, location);
if (i != 0)
{
g.DrawLine(penDash, left, location, width - right, location);
}
g.DrawString(value.ToString(), font, brush, new Rectangle(-5, location - font.Height / 2, left, font.Height), sf);
}
}
/// <summary>
/// 根据指定的方向绘制一个箭头
/// </summary>
/// <param name="g"></param>
/// <param name="brush"></param>
/// <param name="point"></param>
/// <param name="size"></param>
/// <param name="direction"></param>
public static void PaintTriangle(Graphics g, Brush brush, Point point, int size, GraphDirection direction)
{
Point[] points = new Point[4];
if (direction == GraphDirection.Ledtward)
{
points[0] = new Point(point.X, point.Y - size);
points[1] = new Point(point.X, point.Y + size);
points[2] = new Point(point.X - 2 * size, point.Y);
}
else if (direction == GraphDirection.Rightward)
{
points[0] = new Point(point.X, point.Y - size);
points[1] = new Point(point.X, point.Y + size);
points[2] = new Point(point.X + 2 * size, point.Y);
}
else if (direction == GraphDirection.Upward)
{
points[0] = new Point(point.X - size, point.Y);
points[1] = new Point(point.X + size, point.Y);
points[2] = new Point(point.X, point.Y - 2 * size);
}
else
{
points[0] = new Point(point.X - size, point.Y);
points[1] = new Point(point.X + size, point.Y);
points[2] = new Point(point.X, point.Y + 2 * size);
}
points[3] = points[0];
g.FillPolygon(brush, points);
}
/********************************************************************************************************
*
* 以下都是生成图形类的静态方法
*
*
*
*
***********************************************************************************************************/
/// <summary>
/// 根据数据生成一个可视化的图形
/// </summary>
/// <param name="array">数据集合</param>
/// <param name="width">需要绘制图形的宽度</param>
/// <param name="height">需要绘制图形的高度</param>
/// <param name="graphic">指定绘制成什么样子的图形</param>
/// <returns>返回一个bitmap对象</returns>
public static Bitmap GetGraphicFromArray(Paintdata[] array, int width, int height, GraphicRender graphic)
{
if (width < 10 && height < 10) throw new ArgumentException("长宽不能小于等于10");
array.Max(m => m.Count);
Action<Paintdata[], GraphicRender, Graphics> paintAction =
delegate (Paintdata[] array1, GraphicRender graphic1, Graphics g)
{
};
return null;
}
}
}