QCustomPlot User Manual (3) and qcustomplot User Manual

QCustomPlot User Manual (3) and qcustomplot User Manual

I. Scope of change

QCustomPlot *customplot;customplot->setInteraction(QCP::iRangeDrag,true);

Allows controls to be dragged.

customplot->axisRect()->setRangeDrag(Qt::Vertical);// Qt::Horizontal

The control can only be dragged up on one side. It is supported by both water and vertical by default.

customplot->setInteraction(QCP::iRangeZoom,true);

Allows the control to be scaled.

customplot->axisRect()->setRangeZoomAxes(QCPAxis *  horizontal, QCPAxis *  vertical);

Set the coordinate axis for scaling.

customplot->axisRect()->setRangeZoom();

Set the scaling direction. Both horizontal and vertical are supported by default.

customplot->axisRect()->setRangeZoomFactor();

You can set the scaling ratio to the same value, or set the horizontal and vertical values respectively.

Ii. Select Elements

customplot->setInteraction(QCP::iSelectPlottables,true);

Set the elements to selectable.

This can be enabled in the setInteraction function.

customplot->graph()->setSelected(bool);

You can use setSelected to set whether an element can be selected.

customplot->deselectAll();

Deselect all selected items.
The attributes of the selected elements can be set as follows:

QCPGraph::setSelectedPen, QCPGraph::setSelectedBrush, QCPAxis::setSelectedLabelFont, QCPAxis::setSelectedBasePen, QCPItemText::setSelectedColor

QCPAxis is composed of scales, values, and labels. Each part can be selected separately:

customplot->xAxis->setSelectableParts();

The parameter can be

 QCPAxis::spNone, QCPAxis::spAxis, QCPAxis::spTickLabels, and QCPAxis::spAxisLabel

.

QCustomPlot supports low-level response signals, such:

QCustomPlot::mouseDoubleClick, mousePress, mouseMove, mouseRelease, and mouseWheel

And advanced, such:

QCustomPlot::plottableClick, plottableDoubleClick, itemClick, itemDoubleClick, axisClick, axisDoubleClick, legendClick, legendDoubleClick, titleClick, and titleDoubleClick