Mark points on 3D graph

Hi,
I need to mark points (by changing the color of the point)on a 3D graph
which the user would select using mouse clicks. How should I implement
this? Should I use both cursor and mouse event handler in my VI?
IS there any similar example code available?
Any helps would be greatly appreciated
Cheers,
Trin

Start reading at reply #7 in this thread.
I would use a seperate plot to handle the highlighted points. Just add the new point and redraw that plot as they go.
The code for that example is all there.
Have fun,
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

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How to mark points on a graph

Hi All,
I want to write a program which plots data on a surface graph then
allows the user to click on the graph and "mark" points on the plot. The
program should change the color of the "marked" points on the graph.
Based on the sample code provided by "Ben" here
(http://forums.ni.com/ni/board/message?board.id=170&view=by_date_ascending&message.id=144155#M144155)...
I wrote the attached code which uses "event structure" and cursors to do
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Attachments:
change read xyz.vi ‏27 KB

Hi Trin,
I have altered your VI a little bit to get the marked points in an array. You will realize that the mouse up event is requested in a parallel loop, that's because this event doesn't get triggered ifyou drag a cursor.
All you have to do now is to make a graph from the array and create new cursors. But leave Cursor 1 always as the last one and save the past values to new cursors. But maybe you don't need to set a cursor on each marked point.
Kind regards,
Kleisi
Attachments:
3D_Example.vi ‏39 KB

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"MrWaves" wrote in message
news:[email protected]..
> Thanks!
>
> I didnt realize that it is possible to have more than one cursor!
> This means I need to generate as many cursors as points in my array
> and just make it look like an ordinary point.
> Then I can use this cursor to move the point to any position within
> the graph.
> I hope my guess is correct!
>
> Thanks
again for your help
> Thomas

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Attachments:
gr.JPG ‏17 KB

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LabVIEW Champion . Do more with less code and in less time .
Attachments:
histeresis4.vi ‏212 KB

Mark points on 3D graph

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