I am currently evaluating SciChart for use within a new piece of software we are developing. One important feature that we need to provide is to be able to draw a polygon and determine which points are contained within it. Then the colour, visibility, etc of these points can be changed. I can see from your documentation that this could be achieved by creating a custom chart modifier to draw lines that make up the shape and then implement my own algorithm to determine which points are contained within it. Before I embark on this route, could you tell me if I have missed any implementation that already exists? Will the drawn polygon zoom and pan with the graph, therefore enclosing the same points?
We’ve extended our Custom ChartModifiers sample to include data-point selection via mouse drag. This is fresh off the press and we are still proof reading it, but if you take a look at the article ChartModifiers Part 5 – Select Data Points via Mouse Drag you will find a how-to guide.
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