If you want the Microsoft Chart Control to use real semi-persistent URLs for images rather than using charting.axd then:
1. change the web.config settings to include
[add key="ChartImageHandler" value="storage=file;timeout=20;dir=e:\inetpub\yourapp\temp\;deleteAfterServicing=false"/]
2. add this code to your chart initialisation
Chart1.ImageStorageMode = ImageStorageMode.UseImageLocation;
Chart1.ImageLocation = Request.ApplicationPath + "/temp/ChartPic_#SEQ(300,3)";
That seems to work for me :)
One word of warning though: This does open up a security hole - it means charts can be requested multiple times and URLs can be guessed!
Showing posts with label Chart. Show all posts
Showing posts with label Chart. Show all posts
Wednesday, December 17, 2008
Wednesday, December 10, 2008
With all this talk about charts...
I've posted lots about charts recently.
After all the talk, I thought I really should add a few examples....
The data in these isn't a real example, but it's representative of the type of things I've been working on
Well I like them anyway :)
After all the talk, I thought I really should add a few examples....
The data in these isn't a real example, but it's representative of the type of things I've been working on
Well I like them anyway :)
Tuesday, December 09, 2008
Yet more color stuff for charts and beyond
I can't believe I'm spelling colour the American way?!
Anyways, here's a ColorProvider I built based around the Dundas/Microsoft Chart Control - it's just got a simple iteration and raw color access API - I'm sure you'll have no problems understanding it.
See my earlier post for more info about where the Colors come from.
Anyways, here's a ColorProvider I built based around the Dundas/Microsoft Chart Control - it's just got a simple iteration and raw color access API - I'm sure you'll have no problems understanding it.
See my earlier post for more info about where the Colors come from.
using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
namespace SlodgeRoutesTools
{
public class ColorProvider
{
readonly ListmyColors = null;
int myCurrent = -1;
public ListColors
{
get
{
return myColors;
}
}
public void Reset()
{
myCurrent = -1;
}
public Color GetNextColor()
{
myCurrent++;
myCurrent %= myColors.Count;
return myColors[myCurrent];
}
public ColorProvider(Listcolors)
{
myColors = colors;
}
public static ColorProvider GetColorProvider()
{
return GetColorProvider(ColorProviderPalette.Default);
}
public static ColorProvider GetColorProvider(ColorProviderPalette palette)
{
return new ColorProvider(GetColors(palette));
}
public enum ColorProviderPalette
{
Default,
Pastel,
Berry,
Fire,
SeaGreen,
EarthTones,
Excel,
GrayScale,
Chocolate,
Special,
Light
}
private static ListGetColors(ColorProviderPalette palette)
{
switch (palette)
{
case ColorProviderPalette.Pastel:
return new List()
{
// pastel
Color.FromArgb(255, 135, 206, 235),
Color.FromArgb(255, 50, 205, 50),
Color.FromArgb(255, 186, 85, 211),
Color.FromArgb(255, 240, 128, 128),
Color.FromArgb(255, 70, 130, 180),
Color.FromArgb(255, 154, 205, 50),
Color.FromArgb(255, 64, 224, 208),
Color.FromArgb(255, 255, 105, 180),
Color.FromArgb(255, 240, 230, 140),
Color.FromArgb(255, 210, 180, 140),
Color.FromArgb(255, 143, 188, 139),
Color.FromArgb(255, 100, 149, 237),
Color.FromArgb(255, 221, 160, 221),
Color.FromArgb(255, 95, 158, 160),
Color.FromArgb(255, 255, 218, 185),
Color.FromArgb(255, 255, 160, 122)
};
case ColorProviderPalette.Special:
return new List()
{
// special - was originally Dundas
Color.FromArgb(255, 65, 140, 240),
Color.FromArgb(255, 252, 180, 65),
Color.FromArgb(255, 224, 64, 10),
Color.FromArgb(255, 5, 100, 146),
Color.FromArgb(255, 191, 191, 191),
Color.FromArgb(255, 26, 59, 105),
Color.FromArgb(255, 255, 227, 130),
Color.FromArgb(255, 18, 156, 221),
Color.FromArgb(255, 202, 107, 75),
Color.FromArgb(255, 0, 92, 219),
Color.FromArgb(255, 243, 210, 136),
Color.FromArgb(255, 80, 99, 129),
Color.FromArgb(255, 241, 185, 168),
Color.FromArgb(255, 224, 131, 10),
Color.FromArgb(255, 120, 147, 190)
};
case ColorProviderPalette.EarthTones:
return new List()
{
// earth tones
Color.FromArgb(255, 255, 128, 0),
Color.FromArgb(255, 184, 134, 11),
Color.FromArgb(255, 192, 64, 0),
Color.FromArgb(255, 107, 142, 35),
Color.FromArgb(255, 205, 133, 63),
Color.FromArgb(255, 192, 192, 0),
Color.FromArgb(255, 34, 139, 34),
Color.FromArgb(255, 210, 105, 30),
Color.FromArgb(255, 128, 128, 0),
Color.FromArgb(255, 32, 178, 170),
Color.FromArgb(255, 244, 164, 96),
Color.FromArgb(255, 0, 192, 0),
Color.FromArgb(255, 143, 188, 139),
Color.FromArgb(255, 178, 34, 34),
Color.FromArgb(255, 139, 69, 19),
Color.FromArgb(255, 192, 0, 0),
};
case ColorProviderPalette.Excel:
return new List()
{
// excel
Color.FromArgb(255, 153, 153, 255),
Color.FromArgb(255, 153, 51, 102),
Color.FromArgb(255, 255, 255, 204),
Color.FromArgb(255, 204, 255, 255),
Color.FromArgb(255, 102, 0, 102),
Color.FromArgb(255, 255, 128, 128),
Color.FromArgb(255, 0, 102, 204),
Color.FromArgb(255, 204, 204, 255),
Color.FromArgb(255, 0, 0, 128),
Color.FromArgb(255, 255, 0, 255),
Color.FromArgb(255, 255, 255, 0),
Color.FromArgb(255, 0, 255, 255),
Color.FromArgb(255, 128, 0, 128),
Color.FromArgb(255, 128, 0, 0),
Color.FromArgb(255, 0, 128, 128),
Color.FromArgb(255, 0, 0, 255)
};
case ColorProviderPalette.GrayScale:
return new List()
{
// grayscale
Color.FromArgb(255, 189, 189, 189),
Color.FromArgb(255, 178, 178, 178),
Color.FromArgb(255, 167, 167, 167),
Color.FromArgb(255, 156, 156, 156),
Color.FromArgb(255, 145, 145, 145),
Color.FromArgb(255, 134, 134, 134),
Color.FromArgb(255, 123, 123, 123),
Color.FromArgb(255, 112, 112, 112),
Color.FromArgb(255, 101, 101, 101),
Color.FromArgb(255, 90, 90, 90),
Color.FromArgb(255, 79, 79, 79),
Color.FromArgb(255, 68, 68, 68),
Color.FromArgb(255, 57, 57, 57),
Color.FromArgb(255, 46, 46, 46),
Color.FromArgb(255, 35, 35, 35)
};
case ColorProviderPalette.Light:
return new List()
{
// light
Color.FromArgb(255, 230, 230, 250),
Color.FromArgb(255, 255, 240, 245),
Color.FromArgb(255, 255, 218, 185),
Color.FromArgb(255, 255, 250, 205),
Color.FromArgb(255, 255, 228, 225),
Color.FromArgb(255, 240, 255, 240),
Color.FromArgb(255, 240, 248, 255),
Color.FromArgb(255, 245, 245, 245),
Color.FromArgb(255, 250, 235, 215),
Color.FromArgb(255, 224, 255, 255)
};
case ColorProviderPalette.SeaGreen:
return new List()
{
// seaGreen
Color.FromArgb(255, 46, 139, 87),
Color.FromArgb(255, 102, 205, 170),
Color.FromArgb(255, 70, 130, 180),
Color.FromArgb(255, 0, 139, 139),
Color.FromArgb(255, 95, 158, 160),
Color.FromArgb(255, 60, 179, 113),
Color.FromArgb(255, 72, 209, 204),
Color.FromArgb(255, 176, 196, 222),
Color.FromArgb(255, 143, 188, 139),
Color.FromArgb(255, 135, 206, 235)
};
case ColorProviderPalette.Berry:
return new List()
{
// berry
Color.FromArgb(255, 138, 43, 226),
Color.FromArgb(255, 186, 85, 211),
Color.FromArgb(255, 65, 105, 225),
Color.FromArgb(255, 199, 21, 133),
Color.FromArgb(255, 0, 0, 255),
Color.FromArgb(255, 138, 43, 226),
Color.FromArgb(255, 218, 112, 214),
Color.FromArgb(255, 123, 104, 238),
Color.FromArgb(255, 192, 0, 192),
Color.FromArgb(255, 0, 0, 205),
Color.FromArgb(255, 128, 0, 128)
};
case ColorProviderPalette.Fire:
return new List()
{
// fire
Color.FromArgb(255, 255, 215, 0),
Color.FromArgb(255, 255, 0, 0),
Color.FromArgb(255, 255, 20, 147),
Color.FromArgb(255, 220, 20, 60),
Color.FromArgb(255, 255, 140, 0),
Color.FromArgb(255, 255, 0, 255),
Color.FromArgb(255, 255, 255, 0),
Color.FromArgb(255, 255, 69, 0),
Color.FromArgb(255, 199, 21, 133),
Color.FromArgb(255, 221, 226, 33)
};
case ColorProviderPalette.Chocolate:
return new List()
{
// chocolate
Color.FromArgb(255, 160, 82, 45),
Color.FromArgb(255, 210, 105, 30),
Color.FromArgb(255, 139, 0, 0),
Color.FromArgb(255, 205, 133, 63),
Color.FromArgb(255, 165, 42, 42),
Color.FromArgb(255, 244, 164, 96),
Color.FromArgb(255, 139, 69, 19),
Color.FromArgb(255, 192, 64, 0),
Color.FromArgb(255, 178, 34, 34),
Color.FromArgb(255, 182, 92, 58)
};
case ColorProviderPalette.Default:
default:
return new List()
{
Color.FromArgb(255, 0, 128, 0),
Color.FromArgb(255, 0, 0, 255),
Color.FromArgb(255, 128, 0, 128),
Color.FromArgb(255, 0, 255, 0),
Color.FromArgb(255, 255, 0, 255),
Color.FromArgb(255, 0, 128, 128),
Color.FromArgb(255, 255, 255, 0),
Color.FromArgb(255, 128, 128, 128),
Color.FromArgb(255, 0, 255, 255),
Color.FromArgb(255, 0, 0, 128),
Color.FromArgb(255, 128, 0, 0),
Color.FromArgb(255, 255, 0, 0),
Color.FromArgb(255, 128, 128, 0),
Color.FromArgb(255, 192, 192, 192),
Color.FromArgb(255, 255, 99, 71),
Color.FromArgb(255, 255, 228, 181)
};
}
}
}
}
Sunday, December 07, 2008
Creating a color list
While setting up an ASP.Net Pie Chart Control, I wanted to create some sets of colors for subcategories within the chart.
To do this, I tried code like:
private List PieChartColorList(Color baseColor)
{
List list = new List();
list.Add(baseColor);
for (int i = 0; i < 5; i++)
{
list.Add(System.Windows.Forms.ControlPaint.Dark(baseColor, 0.25F - i * 0.05F));
list.Add(System.Windows.Forms.ControlPaint.Light(baseColor, 0.25F- i * 0.05F));
}
return list;
}
using the ControlPaint tip from (http://www.csharp411.com/lighten-and-darken-colors-in-net/) - but it didn't work very well....
To do this, I tried code like:
private List
{
List
list.Add(baseColor);
for (int i = 0; i < 5; i++)
{
list.Add(System.Windows.Forms.ControlPaint.Dark(baseColor, 0.25F - i * 0.05F));
list.Add(System.Windows.Forms.ControlPaint.Light(baseColor, 0.25F- i * 0.05F));
}
return list;
}
using the ControlPaint tip from (http://www.csharp411.com/lighten-and-darken-colors-in-net/) - but it didn't work very well....
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