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Updated qwt to 6.3 (qwt-multiaxes branch) (#4497)
Using qwt from https://sourceforge.net/p/qwt/git/ci/qwt-multiaxes/tree/ Applied the following changes to qwt 6.3: * Added QwtZone to qwt_plot_curve.cpp * Disabled the emitting of Layout Requests on geometry changes of QwtScaleWidget - without this, CPU utilization was up to 100% on one core Fixes #4495
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Joachim Kohlhammer
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/*!
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\page qwtchangelog What's new in Qwt 6.2
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\page qwtchangelog What's new in Qwt 6.8
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\tableofcontents
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\section PLATFORM Qt >= 4.8
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Support for Qt < Qt 4.8 has been dropped, support for Qt6 has been added.
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\section Class Includes
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Include files, that match the class names are available now. So
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it is possible to write "#include <QwtPlot>" now instead of "include qwt_plot.h"
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\section POLAR QwtPolar has become part of Qwt
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The QwtPolar project ( https://qwtpolar.sourceforge.io ) has been integrated
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into Qwt.
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\section MATHML MathML Text Renderer has become its own project
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The code can be found at https://github.com/uwerat/qwt-mml-dev now and is intended
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to become a standalone lib.
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\section SPLINES Spline
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The broken implementation of QwtSpline has been replaced by a bunch of classes
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offering all sort of functionalities around splines.
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The most popular spline approximation/interpolation algos have been implemented:
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- Basis
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- Cardinal
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- ParabolicBlending
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- Akima
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- The one used in a proprietory office package
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- Cubic
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\section OPENGL Better OpenGL support
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QwtPlotOpenGLCanvas added to support rendering to a QOpenGLWidget
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\section ITEMS New plot items
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- QwtPlotVectorField
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A new type of plot item for vector fields
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- QwtPlotGraphicItem
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An item displaying a QwtGraphic image ( f.e used by QwtPlotSvgItem )
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\section CURVE QwtPlotCurve
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- QwtPlotCurve::FilterPointsAggressive
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A fast weeding algo for huge datasets with increasing x or y values
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- QwtPlotCurve::closestPoint
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Is virtual now
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- Line Clipping
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Includes the painter clip now
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- QwtValuePointData
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A new type of data added, where the x values are the index
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- QwtPlotCurve::setSamples
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more type of setters
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\section SPECTROGRAM QwtPlotSpectrogram
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- QwtPlotSpectrogram::setColorTableSize
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Using individual RGB tables
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- QwtRasterData::setInterval/interval
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API cleanup
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- QwtHueColorMap, QwtSaturationValueColorMap
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New type of color maps
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- QwtMatrixRasterData::BicubicInterpolation
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Implementation of bicubic interpolation added
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- Handling of NaN values
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NaN values are interpreted as gaps, when QwtRasterData::WithoutGaps
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is not set
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\section OTHERS Other changes
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- QwtPlotRenderer
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Using QPdfWriter instead of QPrinter, where possible
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- Handling of Unknown Paint Engines
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Not aligning unknown paint engines ( f.e EMF ), QwtNullPaintDevice is not using
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QPaintEngine::User anymore
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- QwtTransform::LogMin/LogMax
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LOG_MIN/LOG_MAX have been reomed ( values differ !
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- qwt_compat.h
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Removed
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- qwtFuzzyGreaterOrEqual/qwtFuzzyLessOrEqual
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Removed
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- qwtGetMin/qwtGetMax
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Removed
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*/
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@@ -36,9 +36,8 @@ to control or display values, arrays, or ranges of type double.
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\section platforms Platforms
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Qwt 6.2 might be usable in all environments where you find
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<a href="https://www.qt.io">Qt</a>.
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It is compatible with Qt 4.8 and all Qt5 versions.
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Qwt 6.4 might be usable in all environments where you find
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<a href="https://www.qt.io">Qt</a>. It is compatible with Qt >= Qt 5.6
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\section changelogonmainpage What's new
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Read the \ref qwtchangelog "summary" of the most important changes.
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@@ -54,10 +53,6 @@ to control or display values, arrays, or ranges of type double.
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\section downloads Downloads
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Stable releases or prereleases are available at the Qwt <a href="http://sourceforge.net/projects/qwt/files">project page</a>, or from the <a href="https://sourceforge.net/p/qwt/git">git repository</a>.
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Active development will happen in the develop branch supporting Qt >= 5.6 and relying
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on at least C++11. However all versions >= Qt 4.8 will actively be supported in the
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6.x branches.\n The popular multiaxes branch is derived from develop.
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\section installonmainpage Installation
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Qwt doesn't distribute binary packages, but today all major Linux distributors
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\section support Support
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- Mailing list\n
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For all kind of Qwt related questions use the Qwt <a href="http://sourceforge.net/mail/?group_id=13693">mailing list</a>.\n
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If you prefer newsgroups use the mail to news gateway of <a href="http://dir.gmane.org/gmane.comp.graphics.qwt.general">Gmane</a>.
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- Forum\n
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<a href="http://www.qtcentre.org">Qt Centre</a> is a great resource for Qt
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@@ -30,7 +30,7 @@
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\color[rgb]{1,1,1}
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\fill(68.0188pt,328.57pt) -- (129.236pt,328.57pt) -- (129.236pt,113.441pt) -- (68.0188pt,113.441pt) -- (68.0188pt,328.57pt);
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\color[rgb]{0,0,0}
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\pgftext[center, base, at={\pgfpoint{80.7724pt}{220.586pt}},rotate=90]{\fontsize{12}{0}\selectfont{\textbf{Axis: YLeft}}}
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\pgftext[center, base, at={\pgfpoint{80.7724pt}{220.586pt}},rotate=90]{\fontsize{12}{0}\selectfont{\textbf{Axis: yLeft}}}
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\pgftext[center, base, at={\pgfpoint{101.603pt}{113.861pt}}]{\fontsize{10}{0}\selectfont{-1,000}}
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\pgftext[center, base, at={\pgfpoint{105.854pt}{165.333pt}}]{\fontsize{10}{0}\selectfont{-500}}
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\pgftext[center, base, at={\pgfpoint{113.506pt}{216.804pt}}]{\fontsize{10}{0}\selectfont{0}}
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@@ -61,7 +61,7 @@
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\color[rgb]{1,1,1}
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\fill(354.548pt,328.57pt) -- (415.765pt,328.57pt) -- (415.765pt,113.441pt) -- (354.548pt,113.441pt) -- (354.548pt,328.57pt);
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\color[rgb]{0,0,0}
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\pgftext[center, base, at={\pgfpoint{403.862pt}{220.586pt}},rotate=-90]{\fontsize{12}{0}\selectfont{\textbf{Axis: YRight}}}
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\pgftext[center, base, at={\pgfpoint{403.862pt}{220.586pt}},rotate=-90]{\fontsize{12}{0}\selectfont{\textbf{Axis: yRight}}}
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\pgftext[center, base, at={\pgfpoint{382.181pt}{113.861pt}}]{\fontsize{10}{0}\selectfont{-1,000}}
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\pgftext[center, base, at={\pgfpoint{377.93pt}{165.333pt}}]{\fontsize{10}{0}\selectfont{-500}}
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\pgftext[center, base, at={\pgfpoint{370.277pt}{216.804pt}}]{\fontsize{10}{0}\selectfont{0}}
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@@ -92,7 +92,7 @@
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\color[rgb]{1,1,1}
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\fill(118.183pt,113.441pt) -- (363.05pt,113.441pt) -- (363.05pt,73.1043pt) -- (118.183pt,73.1043pt) -- (118.183pt,113.441pt);
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\color[rgb]{0,0,0}
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\pgftext[center, base, at={\pgfpoint{241.042pt}{76.4657pt}}]{\fontsize{12}{0}\selectfont{\textbf{Axis: XBottom}}}
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\pgftext[center, base, at={\pgfpoint{241.042pt}{76.4657pt}}]{\fontsize{12}{0}\selectfont{\textbf{Axis: xBottom}}}
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\pgftext[center, base, at={\pgfpoint{133.487pt}{92.4323pt}}]{\fontsize{10}{0}\selectfont{-1,000}}
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\pgftext[center, base, at={\pgfpoint{187.689pt}{92.4323pt}}]{\fontsize{10}{0}\selectfont{-500}}
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\pgftext[center, base, at={\pgfpoint{241.892pt}{92.4323pt}}]{\fontsize{10}{0}\selectfont{0}}
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