How can I change the resolution of the rendered chart? (using the ASP.net controls)

Question

I was looking through the objects with reflector and it appears that it is hardcoded at 96dpi. I was thinking about decompiling the library and adding the attribute as a property on the chart control. I just wanted to check to see if maybe there was a less intrusive method.

Answer 1

There are two ways for changing your chart's resolution, but both will be through code:

1) Your Chart resolution is definable in Pixels :

for this you need to write like :

SemeChart.Height = IntegralHeight; // Only integers allowed for assigning height here
SemeChart.Width = IntegralWidth; // Only integers allowed for assigning width here

2) If you need to make your chart flexible in all resolutions, you need to go for this option.

You will need to store the chart image and then you can change image's resolution in form : pixel/percentage.

// Your code for preparing chart here

SomeChart.SaveImage(ImageUrl);

SomeImageControl.ImageUrl=ImageUrl;

SomeImageControl.Height = "HeightInPercentage";
SomeImageControl.Width = "WidthInPercentage";

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Dhruv Patel
[ Email : [e-mail] ]
Please Mark As Answer if you think the answer was correct.

Answer 2

To clarify, are you saying make an image that is really large and then just scale it down to the desired size by setting the image's width and height attributes? I don't think this will look very nice.

Answer 3

What I suggested is the path you can decide to walk on.

But, if you are sure your image is looking choppy, you can also give an option to see it in full resolution - on which you can set your image to actual resolution.

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Dhruv Patel
[ Email : [e-mail] ]
Please Mark As Answer if you think the answer was correct.