534 lines
46 KiB
Plaintext
534 lines
46 KiB
Plaintext
#### Version 2.0.0-beta released on 13.09.16 ####
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Added major features:
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- Axis tick and tick label generation was completely refactored and is now handled in the QCPAxisTicker class (also see QCPAxis::setTicker). Available ticker subclasses for special uses cases:
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QCPAxisTicker, QCPAxisTickerFixed, QCPAxisTickerLog, QCPAxisTickerPi, QCPAxisTickerTime, QCPAxisTickerDateTime, QCPAxisTickerText
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- Data container is now based on QCPDataContainer template for unified data interface and significantly improved memory footprint and better performance for common use-cases, especially data adding/removing.
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- New data selection mechanism allows selection of single data points and data ranges for plottables. See special documentation page "data selection mechanism".
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- Rubber band/selection rect for data point selection and axis zooming is now available, see documentation of QCustomPlot::setSelectionRectMode and QCPSelectionRect. For this purpose, the new default
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layer "overlay" was introduced, which is now the top layer, and holds the QCustomPlot's QCPSelectionRect instance.
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- Data sharing between plottables of the same type (see setData methods taking a QSharedPointer)
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- OpenGL hardware acceleration is now available across all Qt versions (including Qt4) in a unified, simple interface, with QCustomPlot::setOpenGl
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- QCPStatisticalBox can now display a series of statistical boxes instead of only a single one
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- New QCPErrorBars plottable allows attaching error bars to any one-dimensional plottable (QCPGraph has thus lost its own error-bar capability)
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- QCPColorMap now supports transparency via alpha in its color gradient stops, and via a dedicated cell-wise alpha map (see QCPColorMapData::setAlpha)
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- Layers may now be individually replotted (QCPLayer::replot), if the mode (QCPLayer::setMode) is set to lmBuffered. Mutually adjacent lmLogical layers share a single paint buffer to save resources.
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By default, the new topmost "overlay" layer which contains the selection rect is an lmBuffered layer. Updating the selection rect is thus very fast, independent of the plot contents.
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- QCPLayerable (and thus practically all objects in QCP) now have virtual methods to receive mouse press/move/release/doubleclick/wheel events. Before, only QCPLayoutElement provided them.
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this makes it much easier to subclass e.g. items and plottables to provide custom mouse interactions that were cumbersome and awkward with the simpler signal-based interface
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Added minor features:
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- High-DPI support for Qt versions 5.0 and up, using device pixel ratio detected by Qt (can be changed manually via QCustomPlot::setBufferDevicePixelRatio).
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- QCPGraph and QCPCurve can now be configured to only display every n'th scatter symbol, see ::setScatterSkip() method
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- QCPFinancial allows to define bar width in absolute pixels and axis rect ratio, instead of only in plot key coordinates (see QCPFinancial::setWidthType)
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- Range dragging/zooming can now be configured to affect more than one axis per orientation (see new overloads of QCPAxisRect::setRangeDragAxes/setRangeZoomAxes)
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- Added QCPTextElement (replaces QCPPlotTitle) for general texts in layouts. Provides clicked and doubleClicked signals, as replacement for the removed QCustomPlot::titleClicked/titleDoubleClicked
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- Export functions (QCustomPlot::savePng etc.) now support specifying the resolution that will be written to the image file header. This improves operability with other tools which respect metadata.
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- Replots can now be queued to the next event loop iteration with replot(QCP::rpQueuedReplot). This way you can successively ask for a replot at multiple code locations without causing redundant replots
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- QCPAxisRect::zoom(...) allows to zoom to a specific rectangular region given in pixel coordinates, either affecting all axes or a specified subset of axes.
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- QCPRange::bounded returns a bounded range, trying to preserve its size. Works with rangeChanged signal to limit the allowed range (see rangeChanged doc)
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- Plottable rescaleValueAxis method (and getValueRange) now take parameter inKeyRange, which allows rescaling of the value axis only with respect to data in the currently visible key range
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- plottableClick and plottableDoubleClick signals now carry the clicked data point index as second parameter
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- Added QCPAxis::scaleRange overload without "center" argument, which scales around the current axis range center
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- Added QCPRange::expand/expanded overloads which take only one double parameter
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- Plottables addToLegend/removeFromLegend methods now have overloads that take any QCPLegend, to make working with non-default legends easier (legends that are not QCustomPlot::legend)
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- Added QCPStatisticalBox::setWhiskerAntialiased to allow controlling antialiasing state of whiskers independently of quartile box/median line
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- The virtual method QCPLayoutElement::layoutChanged() now allows subclasses to react on a move of the layout element between logical positions in the parent layout, or between layouts
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- QCPMarginGroup::commonMargin is now virtual, to facilitate subclassing of QCPMarginGroup
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- QCPGraph::getPreparedData is now virtual, and thus allows subclasses to easily generate own plotted data, e.g. on-the-fly.
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- Added QCPRange qDebug stream operator
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- QCPLayoutGrid (and thus QCPLegend) can now wrap rows or columns at specified row/column counts, see setFillOrder, setWrap and the new addElement overload which doesn't have row/column index
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Bugfixes [Also backported to 1.3.2]:
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- Fixed possible crash when having a QCPGraph with scatters only and a non-transparent main/fill brush of the graph
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- Fixed QCPItemPixmap not updating internally cached scaled pixmap if new pixmap set with same scaled dimensions
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- When using log axis scale and zooming out as far as possible (~1e-280..1e280), axis doesn't end up in (via mouse) unrecoverable range with strange axis ticks anymore
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- Axis tick label algorithm for beautifully typeset powers now checks whether "e" in tick label is actually part of a number before converting the exponent to superscript
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- Fixed QCustomPlot::moveLayer performing incorrect move and possible crash in certain situations
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- Fixed possible crash on QCustomPlot destruction due to wrong QObject-hierarchy. Only occurs if a QCPAxisRect is removed from the normal QCustomPlot destruction hierarchy by taking it out of its layout
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- Fixed possible freeze when data values become infinity after coord-to-pixel transformation (e.g. maximally zoomed out log axis), and line style is not solid (e.g. dashed) or phFastPolylines is disabled
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- Fixed a few missing enums in meta type system, by unifying usage of Q_ENUMS, Q_FLAGS and Q_DECLARE_METATYPE
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Bugfixes [Not in 1.3.2]:
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- Fixed QCPItemLine/QCPItemStraightLine not being selectable when defining coords are many orders of magnitude (>1e8) larger than currently viewed range
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- Fixed/worked around crash due to bug in QPainter::drawPixmap with very large negative x/y pixel coordinates, when drawing sparse pixmap scatters
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- Fixed possible (but unlikely) int overflow in adaptive sampling algorithm, that could cause plot artifacts when using extremely sparse data (with respect to current key axis range).
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- Fixed QCPBarsGroup bug which caused stPlotCoords spacing to be wrong with vertical key axes
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- A QCPBars axis rescale in the main window constructor (i.e. without well-defined plot size) now falls back to a datapoint-tight rescaling instead of doing nothing (because bar width can't be determined)
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- Improved QCPBars stacking when using bars with very large keys and key separation at limit of double precision
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Summary of backward incompatible changes:
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Plottable related:
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- Removed QCustomPlot::addPlottable, not needed anymore as plottables now automatically register in their constructor
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- Removed QCustomPlot::addItem, not needed anymore as items now automatically register in their constructor
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- QCPAbstractPlottable::addToLegend/removeFromLegend are not virtual anymore. If your plottable requires a custom legend item, add it to the legend manually.
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- setData/addData method overloads of plottables have changed to facilitate data sharing and new data container (see documentation)
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- plottableClick and plottableDoubleClick signals now carry the clicked data point index as second parameter, and the QMouseEvent parameter has moved to third.
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Check all your usages of those signals, because Qt's connect method only reports problems during runtime!
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- setSelectable now not only limits what can be selected by the user, but limits also any programmatic selection changes via setSelected.
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- enum QCPAbstractPlottable::SignDomain has changed namespace to QCP::SignDomain
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Axis related:
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- Removed QCPAxis::setAutoTicks, setAutoTickCount, setAutoTickLabels, setAutoTickStep, setAutoSubTicks, setTickLabelType, setDateTimeFormat, setDateTimeSpec,
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setTickStep, setTickVector, setTickVectorLabels, setSubTickCount in favor of new QCPAxisTicker-based interface
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- Added QCPAxis::setSubTicks to enable/disable subticks (manually controlling the subtick count needs subclassing of QCPAxisTicker, e.g. QCPAxisTickerText and QCPAxisTickerLog provide setSubTickCount)
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Item related:
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- Renamed QCPAbstractItem::rectSelectTest to rectDistance, to prevent confusion with new QCPAbstractPlottable1D::selectTestRect
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- Renamed QCPItemAnchor::pixelPoint to QCPItemAnchor::pixelPosition (also affects subclass QCPItemPosition)
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General:
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- Renamed QCustomPlot::RefreshPriority enums (parameter of the replot() method): rpImmediate to rpImmediateRefresh, rpQueued to rpQueuedRefresh, rpHint to rpRefreshHint
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- Renamed QCustomPlot::PlottingHint enum phForceRepaint to phImmediateRefresh
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- Removed QCPPlotTitle layout element (See new QCPTextElement for almost drop-in replacement)
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- Removed signals QCustomPlot::titleClicked/titleDoubleClicked, replaced by QCPTextElement signals clicked/doubleClicked.
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- QCustomPlot::savePdf has changed parameters from (fileName, bool noCosmeticPen, width, height,...) to (fileName, width, height, QCP::ExportPen exportPen,...)
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- Virtual methods QCPLayoutElement::mouseMoveEvent/mouseReleaseEvent (which are now introduced already in the superclass QCPLayerable) have gained an additional parameter const QPointF &startPos.
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If you have reimplemented these methods, make sure to update your function signatures, otherwise your reimplementations will likely be ignored by the compiler without warning
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- Creating a new QCPColorGradient without supplying a preset parameter in the constructor now creates an empty gradient, instead of loading the gpCold preset
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Other:
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- Replaced usage of Qt's QVector2D with own QCPVector2D which uses double precision and offers some convenience functions
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- Extended relative range to which QCPItemLine/QCPItemStraightLine can be zoomed before vanishing from ~1e9 to ~1e16
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- Removed QCPItemStraightLine::distToStraightLine (replaced by QCPVector2D::distanceToStraightLine)
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- Removed QCPAbstractPlottable::distSqrToLine and QCPAbstractItem::distSqrToLine (replaced by QCPVector2D::distanceSquaredToLine)
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- Qt5.5 compatibility (If you use PDF export, test your outputs, as output dimensions might change when switching Qt versions -- QCP does not try to emulate previous Qt version behaviour here)
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- QCP now includes <QtPrintSupport/QtPrintSupport> instead of just <QtPrintSupport> because some users had problems with the latter. Please report if you now experience issues due to the new include.
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- QCPGraph can now use a brush (filled polygon under the graph data) without having a graph line (line style lsNone)
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- QCPFinancial is now two-colored (setTwoColored(true)) by default, and has green/red as default two-colored brushes and pens
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- Plottable pixelsToCoords/coordsToPixels methods are now public, and offer transformations from pixel to plot coordinates and vice versa, using the plottable's axes
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- Plottable getKeyRange/getValueRange methods are now public
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- QCPBarsGroup now always places the QCPBars that was added to the group first towards lower keys, independent of axis orientation or direction (the ordering used to flip with axis orientation)
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- Default focus policy for QCustomPlot is now Qt::ClickFocus, instead of Qt::NoFocus.
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- tweaked QCPLegend and QCPAbstractLegendItem margins: The items have by default zero own margins, and QCPLegend row- and column spacing was increased to compensate. Legend was made slightly denser by default.
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- Used doxygen version is now 1.8.12, and documentation/postprocessing-scripts were adapted accordingly. Expect minor issues and some warnings when using older doxygen.
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#### Version 1.3.2 released on 22.12.15 ####
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Bugfixes [Backported from 2.0.0 branch]:
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- Fixed possible crash when having a QCPGraph with scatters only and a non-transparent main/fill brush of the graph
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- Fixed QCPItemPixmap not updating internally cached scaled pixmap if new pixmap set with same scaled dimensions
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- When using log axis scale and zooming out as far as possible (~1e-280..1e280), axis doesn't end up in (via mouse) unrecoverable range with strange axis ticks anymore
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- Axis tick label algorithm for beautifully typeset powers now checks whether "e" in tick label is actually part of a number before converting the exponent to superscript
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- Fixed QCustomPlot::moveLayer performing incorrect move and possible crash in certain situations
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- Fixed possible crash on QCustomPlot destruction due to wrong QObject-hierarchy. Only occurs if a QCPAxisRect is removed from the normal QCustomPlot destruction hierarchy by taking it out of its layout
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- Fixed possible freeze when data values become infinity after coord-to-pixel transformation (e.g. maximally zoomed out log axis), and line style is not solid (e.g. dashed) or phFastPolylines is disabled
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Other [Backported from 2.0.0 branch]:
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- A few documentation fixes/improvements
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- Qt5.5 compatibility (If you use PDF export, test your outputs, as output dimensions might change when switching Qt versions -- QCP does not try to emulate previous Qt version behaviour here)
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- QCP now includes <QtPrintSupport/QtPrintSupport> instead of just <QtPrintSupport> because some users had problems with the latter. Please report if you now experience issues due to the new include.
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#### Version 1.3.1 released on 25.04.15 ####
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Bugfixes:
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- Fixed bug that prevented automatic axis rescaling when some graphs/curves had only NaN data points
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- Improved QCPItemBracket selection boundaries, especially bsCurly and bsCalligraphic
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- Fixed bug of axis rect and colorscale background shifted downward by one logical pixel (visible in scaled png and pdf export)
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- Replot upon mouse release is now only performed if a selection change has actually happened (improves responsivity on particularly complex plots)
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- Fixed bug that allowed scatter-only graphs to be selected by clicking the non-existent line between scatters
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- Fixed crash when trying to select a scatter-only QCPGraph whose only points in the visible key range are at identical key coordinates and vertically off-screen, with adaptive sampling enabled
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- Fixed pdf export of QCPColorMap with enabled interpolation (didn't appear interpolated in pdf)
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- Reduced QCPColorMap jitter of internal cell boundaries for small sized maps when viewed with high zoom, by applying oversampling factors dependant on map size
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- Fixed bug of QCPColorMap::fill() not causing the buffered internal image map to be updated, and thus the change didn't become visible immediately
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- Axis labels with size set in pixels (setPixelSize) instead of points now correctly calculate the exponent's font size if beautifully typeset powers are enabled
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- Fixed QCPColorMap appearing at the wrong position for logarithmic axes and color map spanning larger ranges
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Other:
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- Pdf export used to embed entire QCPColorMaps, potentially leading to large files. Now only the visible portion of the map is embedded in the pdf
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- Many documentation fixes and extensions, style modernization
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- Reduced documentation file size (and thus full package size) by automatically reducing image palettes during package build
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- Fixed MSVC warning message (at warning level 4) due to temporary QLists in some foreach statements
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#### Version 1.3.0 released on 27.12.14 ####
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Added features:
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- New plottable class QCPFinancial allows display of candlestick/ohlc data
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- New class QCPBarsGroup allows horizontal grouping of multiple QCPBars plottables
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- Added QCPBars feature allowing non-zero base values (see property QCPBars::setBaseValue)
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- Added QCPBars width type, for more flexible bar widths (see property QCPBars::setWidthType)
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- New QCPCurve optimization algorithm, fixes bug which caused line flicker at deep zoom into curve segment
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- Item positions can now have different position types and anchors for their x and y coordinates (QCPItemPosition::setTypeX/Y, setParentAnchorX/Y)
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- QCPGraph and QCPCurve can now display gaps in their lines, when inserting quiet NaNs as values (std::numeric_limits<double>::quiet_NaN())
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- QCPAxis now supports placing the tick labels inside the axis rect, for particularly space saving plots (QCPAxis::setTickLabelSide)
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Added features after beta:
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- Made code compatible with QT_NO_CAST_FROM_ASCII, QT_NO_CAST_TO_ASCII
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- Added compatibility with QT_NO_KEYWORDS after sending code files through a simple reg-ex script
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- Added possibility to inject own QCPAxis(-subclasses) via second, optional QCPAxisRect::addAxis parameter
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- Added parameter to QCPItemPixmap::setScaled to specify transformation mode
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Bugfixes:
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- Fixed bug in QCPCurve rendering of very zoomed-in curves (via new optimization algorithm)
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- Fixed conflict with MSVC-specific keyword "interface" in text-document-integration example
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- Fixed QCPScatterStyle bug ignoring the specified pen in the custom scatter shape constructor
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- Fixed bug (possible crash) during QCustomPlot teardown, when a QCPLegend that has no parent layout (i.e. was removed from layout manually) gets deleted
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Bugfixes after beta:
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- Fixed bug of QCPColorMap/QCPColorGradient colors being off by one color sampling step (only noticeable in special cases)
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- Fixed bug of QCPGraph adaptive sampling on vertical key axis, causing staggered look
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- Fixed low (float) precision in QCPCurve optimization algorithm, by not using QVector2D anymore
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Other:
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- Qt 5.3 and Qt 5.4 compatibility
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#### Version 1.2.1 released on 07.04.14 ####
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Bugfixes:
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- Fixed regression which garbled date-time tick labels on axes, if setTickLabelType is ltDateTime and setNumberFormat contains the "b" option
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#### Version 1.2.0 released on 14.03.14 ####
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Added features:
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- Adaptive Sampling for QCPGraph greatly improves performance for high data densities (see QCPGraph::setAdaptiveSampling)
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- QCPColorMap plottable with QCPColorScale layout element allows plotting of 2D color maps
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- QCustomPlot::savePdf now has additional optional parameters pdfCreator and pdfTitle to set according PDF metadata fields
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- QCustomPlot::replot now allows specifying whether the widget update is immediate (repaint) or queued (update)
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- QCPRange operators +, -, *, / with double operand for range shifting and scaling, and ==, != for range comparison
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- Layers now have a visibility property (QCPLayer::setVisible)
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- static functions QCPAxis::opposite and QCPAxis::orientation now offer more convenience when handling axis types
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- added notification signals for selectability change (selectableChanged) on all objects that have a selected/selectable property
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- added notification signal for QCPAxis scaleType property
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- added notification signal QCPLayerable::layerChanged
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Bugfixes:
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- Fixed assert halt, when QCPAxis auto tick labels not disabled but nevertheless a custom non-number tick label ending in "e" given
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- Fixed painting glitches when QCustomPlot resized inside a QMdiArea or under certain conditions inside a QLayout
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- If changing QCPAxis::scaleType and thus causing range sanitizing and a range modification, rangeChanged wouldn't be emitted
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- Fixed documentation bug that caused indentation to be lost in code examples
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Bugfixes after beta:
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- Fixed bug that caused crash if clicked-on legend item is removed in mousePressEvent.
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- On some systems, font size defaults to -1, which used to cause a debug output in QCPAxisPainterPrivate::TickLabelDataQCP. Now it's checked before setting values based on the default font size.
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- When using multiple axes on one side, setting one to invisible didn't properly compress the freed space.
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- Fixed bug that allowed selection of plottables when clicking in the bottom or top margin of a QCPAxisRect (outside the inner rect)
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Other:
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- In method QCPAbstractPlottable::getKeyRange/getValueRange, renamed parameter "validRange" to "foundRange", to better reflect its meaning (and contrast it from QCPRange::validRange)
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- QCPAxis low-level axis painting methods exported to QCPAxisPainterPrivate
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#### Version 1.1.1 released on 09.12.13 ####
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Bugfixes:
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- Fixed bug causing legends blocking input events from reaching underlying axis rect even if legend is invisible
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- Added missing Q_PROPERTY for QCPAxis::setDateTimeSpec
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- Fixed behaviour of QCPAxisRect::setupFullAxesBox (now transfers more properties from bottom/left to top/right axes and sets visibility of bottom/left axes to true)
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- Made sure PDF export doesn't default to grayscale output on some systems
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Other:
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- Plotting hint QCP::phForceRepaint is now enabled on all systems (and not only on windows) by default
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- Documentation improvements
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#### Version 1.1.0 released on 04.11.13 ####
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Added features:
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- Added QCPRange::expand and QCPRange::expanded
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- Added QCPAxis::rescale to rescale axis to all associated plottables
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- Added QCPAxis::setDateTimeSpec/dateTimeSpec to allow axis labels either in UTC or local time
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- QCPAxis now additionally emits a rangeChanged signal overload that provides the old range as second parameter
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Bugfixes:
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- Fixed QCustomPlot::rescaleAxes not rescaling properly if first plottable has an empty range
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- QCPGraph::rescaleAxes/rescaleKeyAxis/rescaleValueAxis are no longer virtual (never were in base class, was a mistake)
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- Fixed bugs in QCPAxis::items and QCPAxisRect::items not properly returning associated items and potentially stalling
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Other:
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- Internal change from QWeakPointer to QPointer, thus got rid of deprecated Qt functionality
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- Qt5.1 and Qt5.2 (beta1) compatibility
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- Release packages now extract to single subdirectory and don't place multiple files in current working directory
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#### Version 1.0.1 released on 05.09.13 ####
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Bugfixes:
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- using define flag QCUSTOMPLOT_CHECK_DATA caused debug output when data was correct, instead of invalid (fixed QCP::isInvalidData)
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- documentation images are now properly shown when viewed with Qt Assistant
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- fixed various documentation mistakes
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Other:
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- Adapted documentation style sheet to better match Qt5 documentation
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#### Version 1.0.0 released on 01.08.13 ####
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Quick Summary:
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- Layout system for multiple axis rects in one plot
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- Multiple axes per side
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- Qt5 compatibility
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- More flexible and consistent scatter configuration with QCPScatterStyle
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- Various interface cleanups/refactoring
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- Pixmap-cached axis labels for improved replot performance
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Changes that break backward compatibility:
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- QCustomPlot::axisRect() changed meaning due to the extensive changes to how axes and axis rects are handled
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it now returns a pointer to a QCPAxisRect and takes an integer index as parameter.
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- QCPAxis constructor changed to now take QCPAxisRect* as parent
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- setAutoMargin, setMarginLeft/Right/Top/Bottom removed due to the axis rect changes (see QCPAxisRect::setMargins/setAutoMargins)
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- setAxisRect removed due to the axis rect changes
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- setAxisBackground(-Scaled/-ScaledMode) now moved to QCPAxisRect as setBackground(-Scaled/ScaledMode) (access via QCustomPlot::axisRects())
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- QCPLegend now is a QCPLayoutElement
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- QCPAbstractPlottable::drawLegendIcon parameter "rect" changed from QRect to QRectF
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- QCPAbstractLegendItem::draw second parameter removed (position/size now handled via QCPLayoutElement base class)
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- removed QCPLegend::setMargin/setMarginLeft/Right/Top/Bottom (now inherits the capability from QCPLayoutElement::setMargins)
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- removed QCPLegend::setMinimumSize (now inherits the capability from QCPLayoutElement::setMinimumSize)
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- removed enum QCPLegend::PositionStyle, QCPLegend::positionStyle/setPositionStyle/position/setPosition (replaced by capabilities of QCPLayoutInset)
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- QCPLegend transformed to work with new layout system (almost everything changed)
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- removed entire title interface: QCustomPlot::setTitle/setTitleFont/setTitleColor/setTitleSelected/setTitleSelectedFont/setTitleSelectedColor and
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the QCustomPlot::iSelectTitle interaction flag (all functionality is now given by the layout element "QCPPlotTitle" which can be added to the plot layout)
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- selectTest functions now take two additional parameters: bool onlySelectable and QVariant *details=0
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- selectTest functions now ignores visibility of objects and (if parameter onlySelectable is true) does not anymore ignore selectability of the object
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- moved QCustomPlot::Interaction/Interactions to QCP namespace as QCP::Interaction/Interactions
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- moved QCustomPlot::setupFullAxesBox() to QCPAxisRect::setupFullAxesBox. Now also accepts parameter to decide whether to connect opposite axis ranges
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- moved range dragging/zooming interface from QCustomPlot to QCPAxisRect (setRangeDrag, setRangeZoom, setRangeDragAxes, setRangeZoomAxes,...)
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- rangeDrag/Zoom is now set to Qt::Horizontal|Qt::Vertical instead of 0 by default, on the other hand, iRangeDrag/Zoom is unset in interactions by
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default (this makes enabling dragging/zooming easier by just adding the interaction flags)
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- QCPScatterStyle takes over everything related to handling scatters in all plottables
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- removed setScatterPen/Size on QCPGraph and QCPCurve, removed setOutlierPen/Size on QCPStatisticalBox (now handled via QCPScatterStyle)
|
|
- modified setScatterStyle on QCPGraph and QCPCurve, and setOutlierStyle on QCPStatisticalBox, to take QCPScatterStyle
|
|
- axis grid and subgrid are now reachable via the QCPGrid *QCPAxis::grid() method. (e.g. instead of xAxis->setGrid(true), write xAxis->grid()->setVisible(true))
|
|
|
|
Added features:
|
|
- Axis tick labels are now pixmap-cached, thus increasing replot performance (in usual setups by about 24%). See plotting hint phCacheLabels which is set by default
|
|
- Advanced layout system, including the classes QCPLayoutElement, QCPLayout, QCPLayoutGrid, QCPLayoutInset, QCPAxisRect
|
|
- QCustomPlot::axisRects() returns all the axis rects in the QCustomPlot.
|
|
- QCustomPlot::plotLayout() returns the top level layout (initially a QCPLayoutGrid with one QCPAxisRect inside)
|
|
- QCPAxis now may have an offset to the axis rect (setOffset)
|
|
- Multiple axes per QCPAxisRect side are now supported (see QCPAxisRect::addAxis)
|
|
- QCustomPlot::toPixmap renders the plot into a pixmap and returns it
|
|
- When setting tick label rotation to +90 or -90 degrees on a vertical axis, the labels are now centered vertically on the tick height
|
|
(This allows space saving vertical tick labels by having the text direction parallel to the axis)
|
|
- Substantially increased replot performance when using very large manual tick vectors (> 10000 ticks) via QCPAxis::setTickVector
|
|
- QCPAxis and QCPAxisRect now allow easy access to all plottables(), graphs() and items() that are associated with them
|
|
- Added QCustomPlot::hasItem method for consistency with plottable interface, hasPlottable
|
|
- Added QCPAxisRect::setMinimumMargins as replacement for hardcoded minimum axis margin (15 px) when auto margin is enabled
|
|
- Added Flags type QCPAxis::AxisTypes (from QCPAxis::AxisType), used in QCPAxisRect interface
|
|
- Automatic margin calculation can now be enabled/disabled on a per-side basis, see QCPAxisRect::setAutoMargins
|
|
- QCPAxisRect margins of multiple axis rects can be coupled via QCPMarginGroup
|
|
- Added new default layers "background" and "legend" (QCPAxisRect draws its background on the "background" layer, QCPLegend is on the "legend" layer by default)
|
|
- Custom scatter style via QCP::ssCustom and respective setCustomScatter functions that take a QPainterPath
|
|
- Filled scatters via QCPScatterStyle::setBrush
|
|
Added features after beta:
|
|
- Added QCustomPlot::toPainter method, to allow rendering with existing painter
|
|
- QCPItemEllipse now provides a center anchor
|
|
|
|
Bugfixes:
|
|
- Fixed compile error on ARM
|
|
- Wrong legend icons were displayed if using pixmaps for scatters that are smaller than the legend icon rect
|
|
- Fixed clipping inaccuracy for rotated tick labels (were hidden too early, because the non-rotated bounding box was used)
|
|
- Fixed bug that caused wrong clipping of axis ticks and subticks when the ticks were given manually by QCPAxis::setTickVector
|
|
- Fixed Qt5 crash when dragging graph out of view (iterator out of bounds in QCPGraph::getVisibleDataBounds)
|
|
- Fixed QCPItemText not scaling properly when using scaled raster export
|
|
Bugfixes after beta:
|
|
- Fixed bug that clipped the rightmost pixel column of tick labels when caching activated (only visible on windows for superscript exponents)
|
|
- Restored compatibility to Qt4.6
|
|
- Restored support for -no-RTTI compilation
|
|
- Empty manual tick labels are handled more gracefully (no QPainter qDebug messages anymore)
|
|
- Fixed type ambiguity in QCPLineEnding::draw causing compile error on ARM
|
|
- Fixed bug of grid layouts not propagating the minimum size from their child elements to the parent layout correctly
|
|
- Fixed bug of child elements (e.g. axis rects) of inset layouts not properly receiving mouse events
|
|
|
|
Other:
|
|
- Opened up non-amalgamated project structure to public via git repository
|
|
|
|
#### Version released on 09.06.12 ####
|
|
|
|
Quick Summary:
|
|
- Items (arrows, text,...)
|
|
- Layers (easier control over rendering order)
|
|
- New antialiasing system (Each objects controls own antialiasing with setAntialiased)
|
|
- Performance Improvements
|
|
- improved pixel-precise drawing
|
|
- easier shared library creation/usage
|
|
|
|
Changes that (might) break backward compatibility:
|
|
- enum QCPGraph::ScatterSymbol was moved to QCP namespace (now QCP::ScatterSymbol).
|
|
This replace should fix your code: "QCPGraph::ss" -> "QCP::ss"
|
|
- enum QCustomPlot::AntialiasedElement and flag QCustomPlot::AntialiasedElements was moved to QCP namespace
|
|
This replace should fix your code: "QCustomPlot::ae" -> "QCP::ae"
|
|
- the meaning of QCustomPlot::setAntialiasedElements has changed slightly: It is now an override to force elements to be antialiased. If you want to force
|
|
elements to not be drawn antialiased, use the new setNotAntialiasedElements. If an element is mentioned in neither of those functions, it now controls
|
|
its antialiasing itself via its "setAntialiased" function(s). (e.g. QCPAxis::setAntialiased(bool), QCPAbstractPlottable::setAntialiased(bool),
|
|
QCPAbstractPlottable::setAntialiasedScatters(bool), etc.)
|
|
- QCPAxis::setTickVector and QCPAxis::setTickVectorLabels no longer take a pointer but a const reference of the respective QVector as parameter.
|
|
(handing over a pointer didn't give any noticeable performance benefits but was inconsistent with the rest of the interface)
|
|
- Equally QCPAxis::tickVector and QCPAxis::tickVectorLabels don't return by pointer but by value now
|
|
- QCustomPlot::savePngScaled was removed, its purpose is now included as optional parameter "scale" of savePng.
|
|
- If you have derived from QCPAbstractPlottable: all selectTest functions now consistently take the argument "const QPointF &pos" which is the test point in pixel coordinates.
|
|
(the argument there was "double key, double value" in plot coordinates, before).
|
|
- QCPAbstractPlottable, QCPAxis and QCPLegend now inherit from QCPLayerable
|
|
- If you have derived from QCPAbstractPlottable: the draw method signature has changed from "draw (..) const" to "draw (..)", i.e. the method
|
|
is not const anymore. This allows the draw function of your plottable to perform buffering/caching operations, if necessary.
|
|
|
|
Added features:
|
|
- Item system: QCPAbstractItem, QCPItemAnchor, QCPItemPosition, QCPLineEnding. Allows placing of lines, arrows, text, pixmaps etc.
|
|
- New Items: QCPItemStraightLine, QCPItemLine, QCPItemCurve, QCPItemEllipse, QCPItemRect, QCPItemPixmap, QCPItemText, QCPItemBracket, QCPItemTracer
|
|
- QCustomPlot::addItem/itemCount/item/removeItem/selectedItems
|
|
- signals QCustomPlot::itemClicked/itemDoubleClicked
|
|
- the QCustomPlot interactions property now includes iSelectItems (for selection of QCPAbstractItem)
|
|
- QCPLineEnding. Represents the different styles a line/curve can end (e.g. different arrows, circle, square, bar, etc.), see e.g. QCPItemCurve::setHead
|
|
- Layer system: QCPLayerable, QCPLayer. Allows more sophisticated control over drawing order and a kind of grouping.
|
|
- QCPAbstractPlottable, QCPAbstractItem, QCPAxis, QCPGrid, QCPLegend are layerables and derive from QCPLayerable
|
|
- QCustomPlot::addLayer/moveLayer/removeLayer/setCurrentLayer/layer/currentLayer/layerCount
|
|
- Initially there are three layers: "grid", "main", and "axes". The "main" layer is initially empty and set as current layer, so new plottables/items are put there.
|
|
- QCustomPlot::viewport now makes the previously inaccessible viewport rect read-only-accessible (needed that for item-interface)
|
|
- PNG export now allows transparent background by calling QCustomPlot::setColor(Qt::transparent) before savePng
|
|
- QCPStatisticalBox outlier symbols may now be all scatter symbols, not only hardcoded circles.
|
|
- perfect precision of scatter symbol/error bar drawing and clipping in both antialiased and non-antialiased mode, by introducing QCPPainter
|
|
that works around some QPainter bugs/inconveniences. Further, more complex symbols like ssCrossSquare used to look crooked, now they look good.
|
|
- new antialiasing control system: Each drawing element now has its own "setAntialiased" function to control whether it is drawn antialiased.
|
|
- QCustomPlot::setAntialiasedElements and QCustomPlot::setNotAntialiasedElements can be used to override the individual settings.
|
|
- Subclasses of QCPAbstractPlottable can now use the convenience functions like applyFillAntialiasingHint or applyScattersAntialiasingHint to
|
|
easily make their drawing code comply with the overall antialiasing system.
|
|
- QCustomPlot::setNoAntialiasingOnDrag allows greatly improved performance and responsiveness by temporarily disabling all antialiasing while
|
|
the user is dragging axis ranges
|
|
- QCPGraph can now show scatter symbols at data points and hide its line (see QCPGraph::setScatterStyle, setScatterSize, setScatterPixmap, setLineStyle)
|
|
- Grid drawing code was sourced out from QCPAxis to QCPGrid. QCPGrid is mainly an internal class and every QCPAxis owns one. The grid interface still
|
|
works through QCPAxis and hasn't changed. The separation allows the grid to be drawn on a different layer as the axes, such that e.g. a graph can
|
|
be above the grid but below the axes.
|
|
- QCustomPlot::hasPlottable(plottable), returns whether the QCustomPlot contains the plottable
|
|
- QCustomPlot::setPlottingHint/setPlottingHints, plotting hints control details about the plotting quality/speed
|
|
- export to jpg and bmp added (QCustomPlot::saveJpg/saveBmp), as well as control over compression quality for png and jpg
|
|
- multi-select-modifier may now be specified with QCustomPlot::setMultiSelectModifier and is not fixed to Ctrl anymore
|
|
|
|
Bugfixes:
|
|
- fixed QCustomPlot ignores replot after it had size (0,0) even if size becomes valid again
|
|
- on Windows, a repaint used to be delayed during dragging/zooming of a complex plot, until the drag operation was done.
|
|
This was fixed, i.e. repaints are forced after a replot() call. See QCP::phForceRepaint and setPlottingHints.
|
|
- when using the raster paintengine and exporting to scaled PNG, pen widths are now scaled correctly (QPainter bug workaround via QCPPainter)
|
|
- PDF export now respects QCustomPlot background color (QCustomPlot::setColor), also Qt::transparent
|
|
- fixed a bug on QCPBars and QCPStatisticalBox where auto-rescaling of axis would fail when all data is very small (< 1e-11)
|
|
- fixed mouse event propagation bug that prevented range dragging from working on KDE (GNU/Linux)
|
|
- fixed a compiler warning on 64-bit systems due to pointer cast to int instead of quintptr in a qDebug output
|
|
|
|
Other:
|
|
- Added support for easier shared library creation (including examples for compiling and using QCustomPlot as shared library)
|
|
- QCustomPlot now has the Qt::WA_OpaquePaintEvent widget attribute (gives slightly improved performance).
|
|
- QCP::aeGraphs (enum QCP::AntialiasedElement, previously QCustomPlot::aeGraphs) has been marked deprecated since version 02.02.12 and
|
|
was now removed. Use QCP::aePlottables instead.
|
|
- optional performance-quality-tradeoff for solid graph lines (see QCustomPlot::setPlottingHints).
|
|
- marked data classes and QCPRange as Q_MOVABLE_TYPE
|
|
- replaced usage of own macro FUNCNAME with Qt macro Q_FUNC_INFO
|
|
- QCustomPlot now returns a minimum size hint of 50*50
|
|
|
|
#### Version released on 31.03.12 ####
|
|
|
|
Changes that (might) break backward compatibility:
|
|
- QCPAbstractLegendItem now inherits from QObject
|
|
- mousePress, mouseMove and mouseRelease signals are now emitted before and not after any QCustomPlot processing (range dragging, selecting, etc.)
|
|
|
|
Added features:
|
|
- Interaction system: now allows selecting of objects like plottables, axes, legend and plot title, see QCustomPlot::setInteractions documentation
|
|
- Interaction system for plottables:
|
|
- setSelectable, setSelected, setSelectedPen, setSelectedBrush, selectTest on QCPAbstractPlottable and all derived plottables
|
|
- setSelectionTolerance on QCustomPlot
|
|
- selectedPlottables and selectedGraphs on QCustomPlot (returns the list of currently selected plottables/graphs)
|
|
- Interaction system for axes:
|
|
- setSelectable, setSelected, setSelectedBasePen, setSelectedTickPen, setSelectedSubTickPen, setSelectedLabelFont, setSelectedTickLabelFont,
|
|
setSelectedLabelColor, setSelectedTickLabelColor, selectTest on QCPAxis
|
|
- selectedAxes on QCustomPlot (returns a list of the axes that currently have selected parts)
|
|
- Interaction system for legend:
|
|
- setSelectable, setSelected, setSelectedBorderPen, setSelectedIconBorderPen, setSelectedBrush, setSelectedFont, setSelectedTextColor, selectedItems on QCPLegend
|
|
- setSelectedFont, setSelectedTextColor, setSelectable, setSelected on QCPAbstractLegendItem
|
|
- selectedLegends on QCustomPlot
|
|
- Interaction system for title:
|
|
- setSelectedTitleFont, setSelectedTitleColor, setTitleSelected on QCustomPlot
|
|
- new signals in accordance with the interaction system:
|
|
- selectionChangedByUser on QCustomPlot
|
|
- selectionChanged on QCPAbstractPlottable
|
|
- selectionChanged on QCPAxis
|
|
- selectionChanged on QCPLegend and QCPAbstractLegendItem
|
|
- plottableClick, legendClick, axisClick, titleClick, plottableDoubleClick, legendDoubleClick, axisDoubleClick, titleDoubleClick on QCustomPlot
|
|
- QCustomPlot::deselectAll (deselects everything, i.e. axes and plottables)
|
|
- QCPAbstractPlottable::pixelsToCoords (inverse function to the already existing coordsToPixels function)
|
|
- QCPRange::contains(double value)
|
|
- QCPAxis::setLabelColor and setTickLabelColor
|
|
- QCustomPlot::setTitleColor
|
|
- QCustomPlot now emits beforeReplot and afterReplot signals. Note that it is safe to make two customPlots mutually call eachothers replot functions
|
|
in one of these slots, it will not cause an infinite loop. (usefull for synchronizing axes ranges between two customPlots, because setRange alone doesn't replot)
|
|
- If the Qt version is 4.7 or greater, the tick label strings in date-time-mode now support sub-second accuracy (e.g. with format like "hh:mm:ss.zzz").
|
|
|
|
Bugfixes:
|
|
- tick labels/margins should no longer oscillate by one pixel when dragging range or replotting repeatedly while changing e.g. data. This
|
|
was caused by a bug in Qt's QFontMetrics::boundingRect function when the font has an integer point size (probably some rounding problem).
|
|
The fix hence consists of creating a temporary font (only for bounding-box calculation) which is 0.05pt larger and thus avoiding the
|
|
jittering rounding outcome.
|
|
- tick label, axis label and plot title colors used to be undefined. This was fixed by providing explicit color properties.
|
|
|
|
Other:
|
|
- fixed some glitches in the documentation
|
|
- QCustomPlot::replot and QCustomPlot::rescaleAxes are now slots
|
|
|
|
#### Version released on 02.02.12 ####
|
|
|
|
Changes that break backward compatibility:
|
|
- renamed all secondary classes from QCustomPlot[...] to QCP[...]:
|
|
QCustomPlotAxis -> QCPAxis
|
|
QCustomPlotGraph -> QCPGraph
|
|
QCustomPlotRange -> QCPRange
|
|
QCustomPlotData -> QCPData
|
|
QCustomPlotDataMap -> QCPDataMap
|
|
QCustomPlotLegend -> QCPLegend
|
|
QCustomPlotDataMapIterator -> QCPDataMapIterator
|
|
QCustomPlotDataMutableMapIterator -> QCPDataMutableMapIterator
|
|
A simple search and replace on all code files should make your code run again, e.g. consider the regex "QCustomPlot(?=[AGRDL])" -> "QCP".
|
|
Make sure not to just replace "QCustomPlot" with "QCP" because the main class QCustomPlot hasn't changed to QCP.
|
|
This change was necessary because class names became unhandy, pardon my bad naming decision in the beginning.
|
|
- QCPAxis::tickLength() and QCPAxis::subTickLength() now each split into two functions for inward and outward ticks (tickLengthIn/tickLengthOut).
|
|
- QCPLegend now uses QCPAbstractLegendItem to carry item data (before, the legend was passed QCPGraphs directly)
|
|
- QCustomPlot::addGraph() now doesn't return the index of the created graph anymore, but a pointer to the created QCPGraph.
|
|
- QCustomPlot::setAutoAddGraphToLegend is replaced by setAutoAddPlottableToLegend
|
|
|
|
Added features:
|
|
- Reversed axis range with QCPAxis::setRangeReversed(bool)
|
|
- Tick labels are now only drawn if not clipped by the viewport (widget border) on the sides (e.g. left and right on a horizontal axis).
|
|
- Zerolines. Like grid lines only with a separate pen (QCPAxis::setZeroLinePen), at tick position zero.
|
|
- Outward ticks. QCPAxis::setTickLength/setSubTickLength now accepts two arguments for inward and outward tick length. This doesn't break
|
|
backward compatibility because the second argument (outward) has default value zero and thereby a call with one argument hasn't changed its meaning.
|
|
- QCPGraph now inherits from QCPAbstractPlottable
|
|
- QCustomPlot::addPlottable/plottable/removePlottable/clearPlottables added to interface with the new QCPAbstractPlottable-based system. The simpler interface
|
|
which only acts on QCPGraphs (addGraph, graph, removeGraph, etc.) was adapted internally and is kept for backward compatibility and ease of use.
|
|
- QCPLegend items for plottables (e.g. graphs) can automatically wrap their texts to fit the widths, see QCPLegend::setMinimumSize and QCPPlottableLegendItem::setTextWrap.
|
|
- QCustomPlot::rescaleAxes. Adapts axis ranges to show all plottables/graphs, by calling QCPAbstractPlottable::rescaleAxes on all plottables in the plot.
|
|
- QCPCurve. For plotting of parametric curves.
|
|
- QCPBars. For plotting of bar charts.
|
|
- QCPStatisticalBox. For statistical box plots.
|
|
|
|
Bugfixes:
|
|
- Fixed QCustomPlot::removeGraph(int) not being able to remove graph index 0
|
|
- made QCustomPlot::replot() abort painting when painter initialization fails (e.g. because width/height of QCustomPlot is zero)
|
|
- The distance of the axis label from the axis ignored the tick label padding, this could have caused overlapping axis labels and tick labels
|
|
- fixed memory leak in QCustomPlot (dtor didn't delete legend)
|
|
- fixed bug that prevented QCPAxis::setRangeLower/Upper from setting the value to exactly 0.
|
|
|
|
Other:
|
|
- Changed default error bar handle size (QCustomPlotGraph::setErrorBarSize) from 4 to 6.
|
|
- Removed QCustomPlotDataFetcher. Was deprecated and not used class.
|
|
- Extended documentation, especially class descriptions.
|
|
|
|
#### Version released on 15.01.12 ####
|
|
|
|
Changes that (might) break backward compatibility:
|
|
- QCustomPlotGraph now inherits from QObject
|
|
|
|
Added features:
|
|
- Added axis background pixmap (QCustomPlot::setAxisBackground, setAxisBackgroundScaled, setAxisBackgroundScaledMode)
|
|
- Added width and height parameter on PDF export function QCustomPlot::savePdf(). This now allows PDF export to
|
|
have arbitrary dimensions, independent of the current geometry of the QCustomPlot.
|
|
- Added overload of QCustomPlot::removeGraph that takes QCustomPlotGraph* as parameter, instead the index of the graph
|
|
- Added all enums to the Qt meta system via Q_ENUMS(). The enums can now be transformed
|
|
to QString values easily with the Qt meta system, which makes saving state e.g. as XML
|
|
significantly nicer.
|
|
- added typedef QMapIterator<double,QCustomPlotData> QCustomPlotDataMapIterator
|
|
and typedef QMutableMapIterator<double,QCustomPlotData> QCustomPlotDataMutableMapIterator
|
|
for improved information hiding, when using iterators outside QCustomPlot code
|
|
|
|
Bugfixes:
|
|
- Fixed savePngScaled. Axis/label drawing functions used to reset the painter transform
|
|
and thereby break savePngScaled. Now they buffer the current transform and restore it afterwards.
|
|
- Fixed some glitches in the doxygen comments (affects documentation only)
|
|
|
|
Other:
|
|
- Changed the default tickLabelPadding of top axis from 3 to 6 pixels. Looks better.
|
|
- Changed the default QCustomPlot::setAntialiasedElements setting: Graph fills are now antialiased
|
|
by default. That's a bit slower, but makes fill borders look better.
|
|
|
|
#### Version released on 19.11.11 ####
|
|
|
|
Changes that break backward compatibility:
|
|
- QCustomPlotAxis: tickFont and setTickFont renamed to tickLabelFont and setTickLabelFont (for naming consistency)
|
|
|
|
Other:
|
|
- QCustomPlotAxis: Added rotated tick labels, see setTickLabelRotation
|
|
|