XY graph cursor position bug

[cursor index use]

can any body help me in finding out the way how a cursor position works? i want to know what exactly does this cursor index active cursor and cursor positions do. i have an image and i have a frequency grapgh for that if im moving my cursor on the frequency graph the contrast of the image according must change. i have 2 frequencies for line taken and no of data points are 200 in each spectrum. so any body can please help me in this case. actually im plotting the frequency plot means the image is made up of diffreent frequencies.

[altenbach]

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@cursor index use wrote:

can any body help me in finding out the way how a cursor position works?

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Since you are not talking about the specfic cursor bug discussed in this thread, you should start a new thread with your new problems. Your post is off-topic. While you are at it, I recommend to be much more specific, even attach some simplified code if possible.

There is also the help for all functions. Simply right-click an item in the property node and "get help" for the specific entry.

Basically, properties can be either read (to get the information), or written (to change the information).

Cursor position x and y are the coordinates. You can read them to get where the user placed them. (even better, use cursor move events!). If you write to the property with new values, the cursor will move programmatically to the new location. If it is a free cursor, it can be anywhere on the graph.

Cursor index only works if the cursor is locked to a plot. The cursor can only be on actual data poinsts It will return the array index of the data point where the cursor is locked to.

[cursor index use]

thank u very much for the reply and sorry i dint know so i posted here. thanks a lot.