Selection of scatter point

Mathieu · Post by **Mathieu** » Tue Aug 17, 2004 2:49 pm

Hi to all,

I'm a newbie with Teechart and I want to know if a selection functionality exist in Teechart (to be able to select a subset of scatter points in one or multiple series) ??? If no functionality exist is it possible for me to implement that over the active X ? (I'm using the Teechart Active X)

Thanks,
P

Post by **Christopher** » Tue Aug 17, 2004 4:19 pm

Hi --

I'm a newbie with Teechart and I want to know if a selection functionality exist in Teechart (to be able to select a subset of scatter points in one or multiple series) ??? If no functionality exist is it possible for me to implement that over the active X ? (I'm using the Teechart Active X)

How would you like to select the subset? With the mouse? According to their values?

Mathieu · Post by **Mathieu** » Tue Aug 17, 2004 7:39 pm

Hey,

In facts, I want to be able to select scatter points with a multi-segment selection tool, and retreive the points which are inside this selection.

The scatter points represents (for me) some kind of pixel information and I want to be able to display the corresponding pixels (in an images display) from the scatter points selection perform on the scatter chart (1 to 1) ... !

Thank you very much,
P

Post by **Christopher** » Wed Aug 18, 2004 4:10 pm

Hi --

In facts, I want to be able to select scatter points with a multi-segment selection tool, and retreive the points which are inside this selection.

Well, in the same way as zoom selects points you can too. Using the OnMouseDown and OnMouseUp events you can determine the pixel positions of a rectangle and ISeries.CalcXPosValue and ISeries.CalcYPosValue to calculate the value range of these positions.