<li>BREAKING: renamed library JKQTCommonStatisticsAndMath to JKQTMath. <i>Note: A CMake-ALIAS-Library JKQTCommonStatisticsAndMath was also added to ease transition for users</i></li>
<li>FIXED issue described in <a href="https://github.com/jkriege2/JKQtPlotter/pull/62">#62: Fix custom labels draw, because giving exactly two label-strings did not display all of them</a>, thanks to <a href="https://github.com/FalsinSoft">user:FalsinSoft</a></li>
<li>FIXED issue <a href="https://github.com/jkriege2/JKQtPlotter/pull/70">#70: Typo in jkqtplotter/CMakeLists.txt</a>, thanks to <a href="https://github.com/tedlinlab">user:tedlinlab</a></li>
<li>FIXED issue <a href="https://github.com/jkriege2/JKQtPlotter/pull/80">#80: Bug with multiple inheritance with Q_GDAGET with CLANG</a>, thanks to <a href="https://github.com/igormironchik">user:igormironchik</a>, caused by <a href="https://bugreports.qt.io/browse/QTBUG-104874">QTBUG-104874</a></li>
<li>FIXED issue <a href="https://github.com/jkriege2/JKQtPlotter/pull/73">#73: Symbol thickness differs in actual plot and legend</a>, thanks to <a href="https://github.com/sim186">user:sim186</a></li>
<li>IMPROVED/REWORKED: reworked JKQTPErrorPlotstyle and error indicator plotting so error-inidcators can be specified as ORed combination of flags from JKQTPErrorPlotstyleElements, added additional error indicator styles (half-bars, arrows...)</li>
<li>IMPROVED/REWORKED: reworked JKQTPCADrawMode and coordinate axis drawing so the draw mide can be specified as ORed combination of flags from JKQTPCADrawModeElements, added flags to draw arrows at the end of the axis line</li>
<li>IMPROVED/REWORKED: coordinate axis code was refactored</li>
<li>NEW: JKQTPFilledCurveXGraph and JKQTPFilledCurveYGraph can now plot wiggle plots with different fill styles above and below the baseline (feature request <a href="https://github.com/jkriege2/JKQtPlotter/issues/68">#68 Wiggle Plots</a> from <a href="https://github.com/xichaoqiang">user:xichaoqiang</a> </li>
<li>NEW/BREAKING CHANGE: data tooltip can now also be shown when "just" moving the mouse (so far this was only possible when dragging the mouse with a button pressed). This also removes JKQtPlotter::getActMouseLeftAsToolTip() and adds JKQtPlotter::getActMouseMoveToolTip() instead! Also the default toolbars and context menus changed!</li>
<li>NEW/BREAKING CHANGE: changed JKQTPColorDerivationMode into a struct, which extends its capabilities above the previously available few enum-items</li>
<li>NEW: added debug-feature to show boxes around text in the plot</li>
<li>BREAKING: Print-Support can now be switched off with a CMAKE-option JKQtPlotter_BUILD_FORCE_NO_PRINTER_SUPPORT=ON. This also switches off PDF and SVG export, partly solves issue <a href="https://github.com/jkriege2/JKQtPlotter/issues/81">#81</a>, many thanks to <a href="https://github.com/sufuk">user:sufuk</a> for contributing part of the code and supplying the idea! </li>
<li>NEW: improved plotting speed for line-graphs by a compression algorithm (see JKQTPGraphLinesCompressionMixin) that removes overlaying lines (e.g. in JKQTPXYLineGraph)</li>
<li>NEW: improved plotting speed for line-graphs by a clipping algorithm (applies to JKQTPXYLineGraph, JKQTPGraphErrorStyleMixin, JKQTPSpecialLineHorizontalGraph, JKQTPSpecialLineVerticalGraph and others)</li>
<li>NEW: improved plotting speed for scatter-graphs by not calling draw functions for symbols outside the plot window (e.g. in JKQTPXYLineGraph)</li>
<li>NEW: made resize-timer status accessible from outside via JKQTPlotter::isResizeTimerRunning() </li>
<li>NEW: made it's delay a global static variable that can be set and red with JKQTPlotter::setGlobalResizeDelay() and JKQTPlotter::getGlobalResizeDelay()</li>
<li>NEW: added the option to draw a character from a font as symbol (<code>JKQTPCharacterSymbol+QChar('C').unicode()</code> and <code>JKQTPFilledCharacterSymbol+QChar('C').unicode()</code>)</li>
<li>NEW: added JKQTPXYGraph::setKeyColumn()/JKQTPXYGraph::getKeyColumn() and JKQTPXYGraph::setValueColumn()/JKQTPXYGraph::getValueColumn() and corresponding functions in other classes. In most graph classes they point to xColumn for key and yColumn for values. These functions are virtual and overwritten in derived classes with horizontally oriented graphs, where they point to yColumn for key and yColumn for value. This way you can write generic code with classes for both orientations.</li>
<li>NEW: added new error indicator styles JKQTPErrorHalfBarsOutwards, JKQTPErrorHalfBarsInwards, JKQTPErrorHalfBarsAbove, JKQTPErrorHalfBarsBelow which are especially useful for barcharts</li>
<li>NEW: Added signals JKQTBasePlotter::beforeExporting()/JKQTBasePlotter::afterExporting() and JKQTBasePlotterJKQTBasePlotter:beforePrinting()/JKQTBasePlotter::afterPrinting() which allow to modify the plot just before and just after an export/print</li>
<li>NEW: barcharts (derived from JKQTPBarGraphBase) can be configured to use different fill styles above and below the baseline, see JKQTPBarGraphBase::FillMode </li>
<li>NEW: barcharts may have rounded corners now, via JKQTPBarGraphBase::setRectRadius()</li>
<li>NEW: barcharts can be colored by a user-specified functor</li>
<li>NEW: secondary axes: added functionality to manage additional secondary axes in a JKQTPBasePlotter and to select which x-/y-Axis to use for drawing a JKQTPPlotElement</li>
<li>FIXED: JKQTMathText added a little whitespace before and after the LaTeX-string. This was removed as it disturbed the layout of text in plots</li>
<li>FIXED: height-calculation of frac-like instructions: before the ascent and descent were equal, even if the numerator and denominator have different heights</li>
<li>FIXED: strikeoutPos was not correctly calculated in sub-/superscript node</li>
<li>FIXED/IMPROVED: JKQTMathText renders several LaTeX strings better (simple braces in math mode, \c +-*... as symbols with proper sizes in math mode, added some missing instruction aliases, improved size of \\vec and \\hat, corrrected fonts usage for \\mathrm</li>
<li>FIXED: \c \\sum and \c \\prod used the wrong symbol in XITS-mode</li>
<li>MODIFIED: brace node now calculates the extension of the child height above or below the strikeoutPos, in order to center braces around the strikeoutPos</li>
<li>IMPROVED: tokenizing and parsing of text in text-mode: now a lot of accents with commands like \c \\\"a, \c \\'e and variants (e.g. \c {\\\"a}, \c \\\"{a}, ...) are supported now</li>
<li>IMPROVED/BREAKING: refactored symbol node JKQTMathTextSymbolNode and changed font-lookup!</li>
<li>IMPROVED/NEW/BREAKING: refactored whitespace-processing node JKQTMathTextWhitespaceNode, now all major LaTeX whitespace commands are supported properly</li>
<li>IMPROVED/NEW/BREAKING: refactored LaTeX parser in JKQTMathText</li>
<li>REMOVED/BREAKING: \c \\v[a-zA-Z] and shorthand for \c \\vec{a-zA-Z} was removed, implementation of \c \\bbR,\c \\bbC,... changed</li>
<li>MODIFIED/BREAKING: new options interface for JKQTMathText::parse()</li>
<li>IMPROVED/REWORKED rendering of blackboard font: now several different rendering modes can be selected using JKQTMathText::setFontBlackboradMode()</li>
<li>BREAKING/CLEANUP: cleanup: Removed Parameter prevNodeSize from JKQTMathTextNode::draw() and JKQTMathTextNode::getSize()/JKQTMathTextNode::getSizeInternal(), since it is only really necessary for JKQTMathTextSubscriptNode and JKQTMathTextSuperscriptNode</li>
<li>BREAKING/CLEANUP: using JKQTMathTextNodeSize for all size-calculation functions and got rid of all functions that take the output parameters with call-by-reference, additional information can be outut by local size-classes that derive from JKQTMathTextNodeSize, see e.g. JKQTMathTextSymbolNode::NodeSize and JKQTMathTextSymbolNode::getSymbolSize()</li>
<li>NEW: JKQTMathTextVerticalListNode allows to typeset a vertical list of lines</li>
<li>NEW: JKQTMathText::parse() by default allows linebreaks in the LaTeX string to be parsed. This can be switched off by a parameter</li>
<li>NEW: added functions to set the font-size in pixels (as alternative to the existing functions that set them in points), implements request <a href="https://github.com/jkriege2/JKQtPlotter/issues/76">#76</a> from <a href="https://github.com/igormironchik">user:igormironchik</a> </li>
<li>NEW: additional method JKQTMathtext::getSizeDetail() that returns all size-properties as a convenient struct, also added matching varinat JKQTMathTextNode::getSize() </li>
<li>NEW: additional method JKQTMathtext::drawIntoPixmap(), JKQTMathtext::drawIntoPicture(), JKQTMathtext::drawIntoImage() which returns a QPixmap, QPicture and QImage respectively that contains the render result of the currently parsed markup</li>
<li>NEW: array/tabular-environments have limited support for formatting string like \c l|r|c and for \c \\hline , \c \\hdashline , \c \\toprule , \c \\midrule , \c \\bottomrule</li>
<li>NEW: reworked code structure: broke up large, single CPP-files into several smaller files!</li>
<li>NEW: reworked node class tree: inserted base-class nodes for single-child, dual-child!</li>
<li>NEW: improved frac-rendering: font-scaling takes nesting-level into account, overall-rendering, sizes, if a brace surrounds a frac, the heights are equal above and below to center the brace , ...</li>
<li>NEW: \c \\limits and \c \\nolimits works as in LaTeX now (before it was simply removed and the functionality implemented for a fixed list of symbols)</li>
<li>NEW: added command line tool \ref JKQTMathTextRenderCmdLineTool that renders LaTeX into images, using it to generate the documentation images for JKQTMathText</li>
<li> fixed issue <a href="https://github.com/jkriege2/JKQtPlotter/pull/34">#34: Skip drawing the line for negative values in log plots</a>, thanks to <a href="https://github.com/certik">user:certik</a></li>
<li> fixed issue <a href="https://github.com/jkriege2/JKQtPlotter/pull/43">#43: jkqtp_format() had undefined behaviour</a>, thanks to <a href="https://github.com/Makis42">user:Makis42</a></li>
<li> fixed issue <a href="https://github.com/jkriege2/JKQtPlotter/pull/41">#41: Build error when JKQtPlotter_BUILD_INCLUDE_XITS_FONTS set to OFF </a>, thanks to <a href="https://github.com/smistad">user:smistad</a></li>
<li> fixed issue <a href="https://github.com/jkriege2/JKQtPlotter/pull/45">#45: Build error on mac jkqtfastplotter.cpp:342:28: Variable has incomplete type 'QPainterPath'</a>, thanks to <a href="https://github.com/abdedixit">user:abdedixit</a></li>
<li> merged PR <a href="https://github.com/jkriege2/JKQtPlotter/pull/47">#47: Some minor build fixes</a>, thanks to <a href="https://github.com/patstew">user:patstew</a></li>
<li> fixed issue <a href="https://github.com/jkriege2/JKQtPlotter/issues/49">#49: Incorrect tag in style .ini-files</a>, thanks to <a href="https://github.com/smistad">user:smistad</a></li>
<li> fixed issue <a href="https://github.com/jkriege2/JKQtPlotter/issues/52">#52: 'runtime_error': is not a member of 'std'</a>, thanks to <a href="https://github.com/gomgomi">user:gomgomi</a></li>
<li>removed/BREAKING change: removed the usage of some deprecated functions and objects (e.g. QMatrix)</li>
<li>removed/BREAKING change: removed the overlay elements (derived from JKQTPOverlayElement), which were not very well set up and are more confusing than useful.</li>
<li>improved/BREAKING change: geometric objects now use an adaptive drawing algorithm to represent curves (before e.g. ellipses were always separated into a fixed number of line-segments)</li>
<li>improved/BREAKING change: geometric elements constructor: removed all styling properties, added setStyle()-functions to replace them. This is necessary to better work with the extended Styling system</li>
<li>improved: constructors and access functions for several geometric objects (e.g. more constructors, additional functions to retrieve parameters in diferent forms, iterators for polygons, ...)</li>
<li>improved/BREAKING change: reworked class hierarchy of parsed function plots and declared several setters as slots.</li>
<li>improved/BREAKING change: reworked class hierarchy of bar & impulse charts.</li>
<li>improved/BREAKING change: reworked class hierarchy of range charts.</li>
<li>improved/BREAKING change: reworked class hierarchy of special line (step) graphs.</li>
<li>improved/BREAKING change: reworked class hierarchy of filled line graphs.</li>
<li>improved/BREAKING change: reworked class hierarchy of range plot elements (JKQTPVerticalRange and JKQTPHorizontalRange).</li>
<li>improved/BREAKING change: reworked class hierarchy of boxplots.</li>
<li>improved/BREAKING change: reworked class hierarchy of violin plots.</li>
<li>improved/BREAKING change: extended styling system for graphs.</li>
<li>improved/BREAKING change: reworked graph Base-Classes (promoted several setters to slots, added Q_PROPERTY- and Q_ENUM-declarations...)</li>
<li>improved/BREAKING change: made more functions and function parameters const</li>
<li>improved/BREAKING change: image plots now manage CONST-data, not plain pointer arrays... This is OK, since the raw data is never owned nor modified by the plot, only referenced!.</li>
<li>new: added support for high-dpi devices (thanks for <a href="https://github.com/jkriege2/JKQtPlotter/pull/55">PR #55: Enable high-dpi support for plots </a> by <a href="https://github.com/akenmorris">user:akenmorris</a>.</li>
<li>new: added geometric plot objects JKQTPGeoArrow to draw arrows (aka lines with added line-end decorators, also extended JKQTPGeoLine, JKQTPGeoInfiniteLine, JKQTPGeoPolyLines to draw line-end decorator (aka arrows)</li>
<li>new: all geometric objects can either be drawn as graphic element (i.e. lines are straight line, even on non-linear axes), or as mathematical curve (i.e. on non-linear axes, lines become the appropriate curve representing the linear function, connecting the given start/end-points). The only exceptions are ellipses (and the derived arcs,pies,chords), which are always drawn as mathematical curves</li>
<li>new: a new graph class JKQTPXYFunctionLineGraph draws parametric 2D curves ( \\f$ [x,y] = f(t) \\f$ ), see \ref JKQTPlotterEvalCurves for an example</li>
Starting in summer 2018, JKQTPlotter received some major workover. During this, it lost compatibility to the <a href="https://github.com/jkriege2/QuickFit3">QuickFit 3.0</a> code base.
<li> new: Mix-In classes to unify plot styleing functions (setters/getters) in all graphs </li>
<li> new: additional options for graph filling (color gradients, textures, ...) as provided by QBrush </li>
<li> new: added a general feature to JKQTPPlotElement which allows to show a graph in a highlighted state (if supported by the derived graph class!) </li>
<li> new: JKQTPXYParametrizedScatterGraph: added functors to transform column values into symbol type+size and line-width to give even more control </li>
<li> new: user-interaction tool that shows coordinates of data points near the current mouse position (when mouse is dragged, while mouse button is pressed), see: jkqtpmdaToolTipForClosestDataPoint </li>
<li> new: user-interaction tool that measures distances and angles when mouse is dragged, while mouse button is pressed), see: jkqtpmdaRuler </li>
<li> new: advanced styling options for boxplots + example for the styling: \ref JKQTPlotterBoxplotStyling </li>
<li> new: several new plot symbols, see: JKQTPGraphSymbols </li>
<li> new: Statistics library with functions to calculate histograms, regression, kernel density estimates, ... see: \ref jkqtptools_math_statistics </li>
<li> new: iterator interface and improved documentation for JKQTPDatastore </li>
<li> new: violin plots (see \ref JKQTPlotterViolinplotGraphs ) </li>
<li> changed: removed old selection-code and replaced by general highlighting feature </li>
<li> changed: JKQTPStepHorizontalGraph has been renamed to JKQTPSpecialLineHorizontalGraph (vertical variants also) and have gained additional features (baseline for filling and drawing of symbols) </li>
<li> changed: filled curve graphs (e.g. JKQTPSpecialLineHorizontalGraph) are now merely a specializedly initialized JKQTPSpecialLineHorizontalGraph </li>
<li> removed: Removed datarange-feature </li>
<li> update: \ref JKQTPLOTTER_USERINTERACTION "reworked user interactions API" </li>
<li> update: \ref jkqtplotter_basegraphserrors "reworked error indicator base classes" </li>
<li> update: improvements to contour plots (e.g. highlighting single contour levels, split into a class for simple C-arrays [JKQTPContourPlot] and one for image data in a JKQTPDatastore column [JKQTPColumnContourPlot]) + added example, see JKQTPColumnContourPlot and \ref JKQTPlotterContourPlot </li>
This is the final version of JKQTPlotter, which is still compatible with the <a href="https://github.com/jkriege2/QuickFit3">QuickFit 3.0</a> code base. It contains minor changes as compared to \ref page_whatsnew_V2015_10 "v2015.10"<ul>
<li> new: added Qt data model to switch graphs on/off
This is the initial release of the library. It was developed initially as part of <a href="https://github.com/jkriege2/QuickFit3">QuickFit 3.0</a> and then separated out into a separate repository.
