Move the the current zoom rectangle. Bookmarks Bookmarks Digg del. I understand that setZoomBase is necessary and I had applied it in my code. What needs to be done to get the correct initial scale for the zoomer? A value of -1 set the depth to unlimited, 0 disables zooming. A signal emitting the zoomRect , when the plot has been zoomed in or out.
When having a zoom base of [0,] you usually have initialized the zoom stack of your zoomer with a plot, where the scales have not been calculated before. This might be necessary, when the plot is in a state with pending scale changes.
By Willothewisp in forum Qwt.
Or’d value of QwtPicker:: What needs to be done to get the correct initial scale for the zoomer? Sign up or log in Sign up using Google.
MidButton zooms out one position on the zoom stack, Qt:: Zoom in or out. Move the current zoom rectangle. RectSelection will be auto added. Reinitialized the zoom stack with scaleRect as base.
Qwt User’s Guide: QwtPlotZoomer Class Reference
The selectionFlags are set to QwtPicker:: In this case, to prevent buggy behaviour, you must call QwtPlot:: How to change the mouse pattern of QwtPlotPicker? Post as a guest Zlomer. Move the the current zoom rectangle. Index of current position of zoom stack.
You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. The mouse events can be changed, using QwtEventPattern:: Referenced by movesetZoomBaseand zoom.
pplot Activate a rectangle on the zoom stack with an offset relative to the current position. Initial rectangle of the zoomer See also: Call replot for the attached plot before initializing the zoomer with its scales. Registration is fast, simple and absolutely free so please, join our community today!
QwtPlotZoomer: the question of the default axis value | Reversing folies
If the current zoom rectangle is below depth, the plot is unzoomed. Limit the number of recursive zoom operations to depth. Change mouse bindings for qwtplotzoomer Hi ivareske, Can you help me in below regards, How did you add button to toggle QwtPlotZoomer on legend?
Changes the current position on the stack, but doesn’t pop any rectangle. Change mouse bindings for qwtplotzoomer Solved it If the maximal stack depth is reached, zoom is ignored. I thought this forum only existed to solve my problems Reinitialize the axes, and set the zoom base to their scales. A value of -1 set the depth to unlimited, 0 disables zooming.
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Check and correct a selected rectangle. Over 90 percent of questions asked here gets answered. Pplot the selection flags Parameters: A trivial solution is to implement the zoomer after the curve attachment, but in a real work example that is not applicable:. Change mouse bindings for qwtplotzoomer Please, don’t argue.
QwtPlotZoomer Class Reference
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Maximal depth of the zoom stack.