JKQTPlotter trunk/v5.0.0
an extensive Qt5+Qt6 Plotter framework (including a feature-richt plotter widget, a speed-optimized, but limited variant and a LaTeX equation renderer!), written fully in C/C++ and without external dependencies
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JKQTMathText is a hand-written LaTeX-renderer for Qt (implemented in native C++, using Qt). It supports a large set of standard LaTeX markup and can render it to a QPainter.
This project (see ./examples/jkqtmathtext_render/
) is a command-line utility that accepts a LaTeX markup string and a filename for the generated image. It then renders the string into the image. The source code of the main application can be found in jkqtmathtext_render.cpp
. The major rendering portion look like this:
First we generate dummy QPixmap that is needed to use the QPainter, that is required for determining the size of the rendering.
Now we create a JKQTMathText object and configure it
Now we parse some LaTeX code and thus generate its memory representation.
Finally we can generate a QImage with the output of the rendering algorithm and save it as a file.
calling this utility with the LaTeX code:
results in this output:
The tool supports these command-line options:
jkqtmathtext_render LATEX OUTPUTFILE
OUTPUTFILE
determines the file type. The tool supports .png
, .bmp
, .jpg
, .ppm
, .xbm
and .xpm
jkqtmathtext_render --inputfile=INPUTFILE.jkmt --outputdir=OUTPUTDIR
INPUTFILE.jkmt
is a text file with several "render jobs", deparated by ---
lines.OUTPUTDIR
)--fontsize=24 --fontmathroman=XITS
, Note however that only options concerning formatting are allowed, --verbose
or the file/directory-options will not be processed!--verbose
: verbose output of the tool--sizeincrease=SIZE_PIXELS
: set the width of the additional margin around the rendering result--drawboxes
: flag that enables drawing of rectangles around each box--font=FONT_SERIF
: sets text- and math-mode serif font to FONT_SERIF
--font=FONT_SERIF,FONT_SANS
: sets text- and math-mode serif font to FONT_SERIF
and sans font to FONT_SANS
--font=FONT_TEXT_SERIF,FONT_TEXT_SANS,FONT_MATH_SERIF,FONT_MATH_SANS
: sets text- and math-mode serif font to FONT_TEXT_SERIF
and FONT_MATH_SERIF
and sans fonts to FONT_TEXT_SANS
and FONT_MATH_SANS
--font=...+XITS|STIX|ASANA
: set fonts as given above and then use XITS-/STIX- or ASANA-fonts for math-roman--fontsize=SIZE_PT
: set the font-size in pt--fontroman=FONT
: set the text-mode roman font--fontsans=FONT
: set the text-mode sans font--fontmathroman=FONT
: set the math-mode roman font--fontmathsans=FONT
: set the math-mode sans font--fontblackboard=FONT
: use the given font as blackboard-font and de-activate the simulate-feature--fontblackboardmode=default|font_directly|simulate|unicode_or_font_directly|unicode_or_simulate
: use the given drawing mode for blackboard fonts--fonttypewriter=FONT
: set the typewriter font--fontscript=FONT
: set the script font--fontcaligraphic=FONT
: set the caligraphic font--fontfraktur=FONT
: set the fraktur font--fontfallbacksymbol=FONT
: set the fallback symbol font, using unicode encoding--fontfallbacksymbol_symbolencoding=FONT
: set the fallback symbol font, using WinSymbol encoding--background=COLOR
: set the background color of the output image--textcolor=COLOR
: set the text color of the output image