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void | setDataSortOrder (DataSortOrder __value) |
| if !=Unsorted , the data is sorted before plotting
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void | setDataSortOrder (int __value) |
| if !=Unsorted , the data is sorted before plotting
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virtual void | setKeyColumn (int __value) |
| sets the column used as "key" for the current graph (typically this call setXColumn(), but for horizontal graphs like filled curves or barcharts it may call setYColumn() )
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virtual void | setValueColumn (int __value) |
| sets the column used as "value" for the current graph (typically this call setXColumn(), but for horizontal graphs like filled curves or barcharts it may call setYColumn() )
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void | setXColumn (int __value) |
| the column that contains the x-component of the datapoints
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void | setXColumn (size_t __value) |
| the column that contains the x-component of the datapoints
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void | setXYColumns (int xCol, int yCol) |
| sets xColumn and yColumn at the same time
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void | setXYColumns (QPair< int, int > xyColPair) |
| sets xColumn and yColumn at the same time
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void | setXYColumns (QPair< size_t, size_t > xyColPair) |
| sets xColumn and yColumn at the same time
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void | setXYColumns (size_t xCol, size_t yCol) |
| sets xColumn and yColumn at the same time
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void | setYColumn (int __value) |
| the column that contains the y-component of the datapoints
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void | setYColumn (size_t __value) |
| the column that contains the y-component of the datapoints
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void | setHighlighted (bool __value) |
| sets whether the graph is drawn in a highlighted style in the plot
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virtual void | setTitle (const QString &__value) |
| sets the title of the plot (for display in key!).
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void | setVisible (bool __value) |
| sets whether the graph is visible in the plot
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| JKQTPXYGraph (JKQTBasePlotter *parent=nullptr) |
| class constructor
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DataSortOrder | getDataSortOrder () const |
| if !=Unsorted , the data is sorted before plotting
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virtual int | getKeyColumn () const |
| returns the column used as "key" for the current graph (typically this call getXColumn(), but for horizontal graphs like filled curves or barcharts it may call getYColumn() )
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virtual int | getValueColumn () const |
| returns the column used as "value" for the current graph (typically this call getXColumn(), but for horizontal graphs like filled curves or barcharts it may call getYColumn() )
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int | getXColumn () const |
| the column that contains the x-component of the datapoints
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virtual bool | getXMinMax (double &minx, double &maxx, double &smallestGreaterZero) override |
| get the maximum and minimum x-value of the graph
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int | getYColumn () const |
| the column that contains the y-component of the datapoints
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virtual bool | getYMinMax (double &miny, double &maxy, double &smallestGreaterZero) override |
| get the maximum and minimum y-value of the graph
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virtual double | hitTest (const QPointF &posSystem, QPointF *closestSpotSystem=nullptr, QString *label=nullptr, HitTestMode mode=HitTestXY) const override |
| Implmentation of JKQTPPlotElement::hitTest(), which searches through all graph points defined by xColumn and yColumn and returns a general x/y-label, also taking into account possibly known errors to the graphs (if it is derived from JKQTPXGraphErrorData and/or JKQTPYGraphErrorData.
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virtual bool | usesColumn (int column) const override |
| returns true if the given column is used by the graph
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| JKQTPGraph (JKQTBasePlotter *parent=nullptr) |
| class constructor
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virtual | ~JKQTPGraph ()=default |
| default wirtual destructor
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| JKQTPPlotElement (JKQTBasePlotter *parent=nullptr) |
| class constructor
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virtual | ~JKQTPPlotElement ()=default |
| default wirtual destructor
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QPointF | backTransform (const QPointF &x) const |
| tool routine that back-transforms a QPointF according to the parent's transformation rules (pixels --> plot coordinate)
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QPointF | backTransform (double x, double y) const |
| tool routine that back-transforms a QPointF according to the parent's transformation rules (pixels --> plot coordinate)
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double | backtransformX (double x) const |
| tool routine that backtransforms an x-coordinate (pixels --> plot coordinate) for this plot element, uses the axis referenced in xAxisRef
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double | backtransformY (double y) const |
| tool routine that backtransforms a y-coordinate (pixels --> plot coordinate) for this plot element, uses the axis referenced in yAxisRef
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virtual void | draw (JKQTPEnhancedPainter &painter)=0 |
| plots the graph to the plotter object specified as parent
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virtual void | drawKeyMarker (JKQTPEnhancedPainter &painter, const QRectF &rect)=0 |
| plots a key marker inside the specified rectangle rect
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virtual void | drawOutside (JKQTPEnhancedPainter &painter, QRect leftSpace, QRect rightSpace, QRect topSpace, QRect bottomSpace) |
| plots outside the actual plot field of view (e.g. color bars, scale bars, ...)
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QImage | generateKeyMarker (QSize size=QSize(16, 16)) |
| returns an image with a key marker inside
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virtual QColor | getKeyLabelColor () const =0 |
| returns the color to be used for the key label
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virtual void | getOutsideSize (JKQTPEnhancedPainter &painter, int &leftSpace, int &rightSpace, int &topSpace, int &bottomSpace) |
| if the graph plots outside the actual plot field of view (e.g. color bars, scale bars, ...)
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JKQTBasePlotter * | getParent () |
| returns the parent painter class
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const JKQTBasePlotter * | getParent () const |
| returns the parent painter class
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QString | getTitle () const |
| returns the the title of the plot
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const JKQTPCoordinateAxis * | getXAxis () const |
| returns the actual x-Axis-object from the parent plotter, referenced in xAxisRef
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JKQTPCoordinateAxisRef | getXAxisRef () const |
| indicates which coordinate axis to use for coordinate transforms in x-direction
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const JKQTPCoordinateAxis * | getYAxis () const |
| returns the actual y-Axis-object from the parent plotter, referenced in yAxisRef
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JKQTPCoordinateAxisRef | getYAxisRef () const |
| indicates which coordinate axis to use for coordinate transforms in y-direction
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bool | isHighlighted () const |
| returns whether the graph is shown in a highlighted style in the plot
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bool | isVisible () const |
| returns whether the graph is visible in the plot
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void | setAxes (JKQTPCoordinateAxisRef ref) |
| set the coordinate axes to use for this plot element
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virtual void | setParent (JKQTBasePlotter *parent) |
| sets the parent painter class
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virtual void | setParent (JKQTPlotter *parent) |
| sets the parent painter class
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void | setXAxis (JKQTPCoordinateAxisRef ref) |
| indicates which coordinate axis to use for coordinate transforms in x-direction
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void | setYAxis (JKQTPCoordinateAxisRef ref) |
| indicates which coordinate axis to use for coordinate transforms in y-direction
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QPointF | transform (const QPointF &x) const |
| tool routine that transforms a QPointF according to the parent's transformation rules (plot coordinate --> pixels)
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QPolygonF | transform (const QPolygonF &x) const |
| tool routine that transforms a QPolygonF according to the parent's transformation rules (plot coordinate --> pixels)
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QPointF | transform (double x, double y) const |
| tool routine that transforms a QPointF according to the parent's transformation rules (plot coordinate --> pixels)
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QPainterPath | transformToLinePath (const QPolygonF &x) const |
| tool routine that transforms a QPolygonF according to the parent's transformation rules and returns a (non-closed) path consisting of lines (plot coordinate --> pixels)
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QVector< double > | transformX (const QVector< double > &x) const |
| transform all x-coordinates in a vector x
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double | transformX (double x) const |
| tool routine that transforms an x-coordinate (plot coordinate --> pixels) for this plot element, uses the axis referenced in xAxisRef
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QVector< double > | transformY (const QVector< double > &x) const |
| transform all y-coordinates in a vector x
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double | transformY (double y) const |
| tool routine that transforms a y-coordinate (plot coordinate --> pixels) for this plot element, uses the axis referenced in yAxisRef
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int | getDataIndex (int i) const |
| returns the index of the i-th datapoint (where i is an index into the SORTED datapoints)
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virtual bool | getIndexRange (int &imin, int &imax) const |
| determines the range of row indexes available in the data columns of this graph
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virtual void | intSortData () |
| sorts data according to the specified criterion in sortData ... The result is stored as a index-map in sorted Indices
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virtual void | drawErrorsAfter (JKQTPEnhancedPainter &) |
| this function is used to plot error inidcators after plotting the graphs.
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virtual void | drawErrorsBefore (JKQTPEnhancedPainter &) |
| this function is used to plot error inidcators before plotting the graphs.
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bool | getDataMinMax (int column, double &minx, double &maxx, double &smallestGreaterZero) |
| get the maximum and minimum value of the given column
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void | addHitTestData (const HitTestLocation &loc) |
| clear the internal datastore for hitTest()
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void | addHitTestData (const QPointF &pos_, const QString &label_) |
| clear the internal datastore for hitTest()
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void | addHitTestData (const QPointF &pos_, int index_, const QString &label_) |
| clear the internal datastore for hitTest()
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void | addHitTestData (const QPointF &pos_, int index_=-1, const JKQTPDatastore *datastore=nullptr) |
| clear the internal datastore for hitTest(), this variant uses formatHitTestDefaultLabel() to auto-generate the label
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void | addHitTestData (double x_, double y_, const QString &label_) |
| add a new point on the graph to the internal datastore for hitTest()
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void | addHitTestData (double x_, double y_, int index_, const QString &label_) |
| clear the internal datastore for hitTest()
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void | addHitTestData (double x_, double y_, int index_=-1, const JKQTPDatastore *datastore=nullptr) |
| add a new point on the graph to the internal datastore for hitTest(), this variant uses formatHitTestDefaultLabel() to auto-generate the label
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void | clearHitTestData () |
| clear the internal datastore for hitTest()
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virtual QString | formatHitTestDefaultLabel (double x, double y, int index=-1, const JKQTPDatastore *datastore=nullptr) const |
| tool-function for hitTest(), which formats a default label, taking into account the x- and y-position (both provided) and optionally the errors of these positions.
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void | reserveHitTestData (int points) |
| reserve list entries for up to points graph points in the internal datastore for hitTest()
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QString | xFloatToString (double v, int past_comma=-1) const |
| converts a x-value v into a string, taking into account the type of x-axis
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QString | yFloatToString (double v, int past_comma=-1) const |
| converts a x-value v into a string, taking into account the type of x-axis
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This virtual JKQTPGraph descendent may be used as base for all graphs that use at least two columns that specify x and y coordinates for the single plot points.
This class implements basic management facilities for the data columns:
- setXColumn(), setYColumn() to set the columns to be used for the graph data
- setDataSortOrder() to specify whether and how the data should be sorted before drawing
Unsorted Data
Data sorted along x-axis (DataSortOrder::SortedX)
... and overrides/implements the functions: