Silverlight Line Graph with Gradient
- by gav
I have a series of points which I will turn into a line on a graph. What I want is to give the area under the graph a gradient fill. It would look somewhat similar to a Bloomberg graph like this;
My question really has three parts;
First, how should I fill only the area under the graph?
Second, how do I fill that with a gradient?
Finally, if I have multiple lines on the same graph any area under more than one line should have a greyscale gradient fill, how would you set this up?
My biggest problem is deciding on the data structures to use, I could use many multiple sided shapes (One for each line/ data series) and then tell the brush to draw;
Transparent if it's not in any shape
The colour of one series if it's in one shape (Alpha relative to height to give grad)
Black if it's in multiple shapes (Alpha relative to height to give grad)
Then I'd draw the shapes' boundaries in white afterwards.
Thanks,
Gav
