using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
namespace Chart.Drawing.TextPainters
{
public class LogarithmTextPainter : SimpleCoordTextPainter
{
#region Overriden Members
public override void DrawTextX(Graphics g, int[,] insets, double[,] dSize, int[] size, double[] scale)
{
drawTextXLog(g, insets, dSize, size, scale);
}
public override void DrawTextY(Graphics g, int[,] insets, double[,] dSize, int[] size, double[] scale)
{
drawTextXLog(g, insets, dSize, size, scale);
}
#endregion
#region Members
protected void drawTextXLog(Graphics g, int[,] insets, double[,] dSize, int[] size, double[] scale)
{
Font font = new Font("Times", 13);
Font fontPow = new Font("Times", 6);
Brush brush = new SolidBrush(Color.Black);
int h = font.Height + insets[0, 1] + size[1];
Pen pen = new Pen(Color.Black);
int min = (int)Math.Floor(dSize[0, 0]);
int max = (int)Math.Ceiling(dSize[1, 0]);
for (int j = min; j <= max; j++)
{
//string ss = "";
/*for (int k = 0; k < j; k++)
{
ss = ss + "0";
}
string sp = "";
for (int k = 0; k > j + 1; k--)
{
sp = sp + "0";
}
if (j < 0)
{
sp = "0," + sp;
}*/
string sp = "1";
if (j > 0)
{
sp += "e+" + j;
}
if (j < 0)
{
sp += "e" + j;
}
for (int k = 0; k < 10; k++)
{
double c = j + Math.Log10(k);
if ((c < dSize[0, 0]) | (c > dSize[1, 0]))
{
continue;
}
performer.Transform(c, 0.0, p);
string s = k + "";
int w = (int)g.MeasureString(sp, font).Width;
int x = p[0] + insets[0, 0] - w / 2;
if (k == 1)
{
string sh = sp;// +k + ss;
g.DrawString(sh, font, brush, x, h);
}
/*if ((k == 0) & (j != 0))
{
g.DrawString(sp + k + ss, fontPow, brush, x + w, h - font.Height + fontPow.Height);
}*/
}
}
}
protected void drawTextYLog(Graphics g, int[,] insets, double[,] dSize, int[] size, double[] scale)
{
Font font = new Font("Times", 13);
Font fontPow = new Font("Times", 6);
Brush brush = new SolidBrush(Color.Black);
int h = font.Height + insets[0, 1] + size[1];
Pen pen = new Pen(Color.Black);
int min = (int)Math.Floor(dSize[0, 1]);
int max = (int)Math.Ceiling(dSize[1, 1]);
for (int j = min; j <= max; j++)
{
string ss = "";
/* for (int k = 0; k < j; k++)
{
ss = ss + "0";
}
string sp = "";
for (int k = 0; k > j; k--)
{
sp = sp + "0";
}
if (sp.Length > 0)
{
sp = "0," + sp;
}*/
string sp = "1";
if (j > 0)
{
sp += "e+" + j;
}
if (j < 0)
{
sp += "e" + j;
}
for (int k = 0; k < 10; k++)
{
double c = j + Math.Log10(k);
if ((c < dSize[0, 1]) | (c > dSize[1, 1]))
{
continue;
}
performer.Transform(0.0, c, p);
string s = k + "";
int w = (int)g.MeasureString("13", font).Width;
int y = p[1] + insets[0, 1];
if (k == 1)
{
string sh = sp;// +k + ss;
w = (int)g.MeasureString(sh, font).Width;
g.DrawString(sh, font, brush, insets[0, 0] - (int)(double)(1.2 * w), y);
}
if ((k == 0) & (j != 0))
{
w = (int)g.MeasureString("7", font).Width;
g.DrawString(sp + k + ss, fontPow, brush, insets[0, 0] - (int)(double)(1.2 * w), y - font.Height + fontPow.Height);
}
}
}
}
#endregion
}
}
Submit an article or tip