image from chart

[Nick Adams]

I would like to be able to create an image of a chart created in my application so that i can attach it to an email or save as an image for archiving.  Can I create an image (bitmap,gif,jpeg,etc) object (System.Drawing.Image?) from the RadChart class with a given size or resolution (create an image of the chart scaled to 6"x9")?

[Dwight]

Hello Nick,

You can save the RadChart in an image, but the chart just dupliacates its image into a bitmap object:

	Bitmap bmp = new Bitmap(this.radChart1.Width, this.radChart1.Height, PixelFormat.Format32bppArgb);
	this.radChart1.DrawToBitmap(bmp, new Rectangle(0, 0, this.radChart1.Width, this.radChart1.Height));

To obtain a larger image, you need to resize the chart to the required size. Dimensions given in inches should be converted to pixels:
image_width_in_pixels = image_width_in_inches * pixels_per_inch;
Same is for the height.

I hope you find this information useful. Should you have further questions, do not hesitate to write us.




Regards,
Evtim
the Telerik team

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[Matt Streit]

Hi,

I'm trying to take a radchart object and place an image of it on the clipboard. I know I can use the .getBitmap function to get a bitmap, but I'm hoping to either get or convert this to a jpeg. Is there a way to do that?

Thanks.

[Dwight]

Hi Matt Streit,

In order to place an image into the clipboard, you need only to call Clipboard.SetImage(image). Here is a sample code:

Bitmap bmp = new Bitmap(this.radChart1.Width, this.radChart1.Height, PixelFormat.Format32bppArgb);
this.radChart1.DrawToBitmap(bmp, new Rectangle(0, 0, this.radChart1.Width, this.radChart1.Height));

Clipboard.SetImage(bmp);

There are no file/image formats when putting objects in the Clipboard. You can save the RadChart to image, selecting the image format like that:

this.radChart1.Save(@"C:\\image.jpg", ImageFormat.Jpeg);

The supported image formats can be found here: System.Drawing.Imaging.ImageFormat

All the best,
Joshua
the Telerik team

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