diff --git a/README.md b/README.md
index 2126cea203..9560464b36 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ All test-projects are Qt-projects that use qmake to build. You can load them int
| Screenshot | Description | Notes |
|:-------------:| ------------- | ------------- |
-| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_logaxes) | [logarithmic axes](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_logaxes) | `JKQTPxyLineGraph` and `JKQTPgeoText`
C++ vector of data
logarithmic axes
plot line styles
internal LaTeX parser
add commenting text to a graph |
+| [](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_logaxes) | [logarithmic axes](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_logaxes) | `JKQTPxyLineGraph` and `JKQTPgeoText`
C++ vector of data
logarithmic axes and styling
plot line styles
internal LaTeX parser
add commenting text to a graph |
| [
](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_dateaxes) | [date/time axes](https://github.com/jkriege2/JKQtPlotter/tree/master/test/jkqtplotter_simpletest_dateaxes) | `JKQTPxyLineGraph` and `JKQTPfilledVerticalRangeGraph`
C++ vector of data
date/time axes
plot min/max range graph
internal LaTeX parser
data from CSV files |
diff --git a/lib/jkqtmathtext/jkqtmathtext.cpp b/lib/jkqtmathtext/jkqtmathtext.cpp
index 88b637c88b..4e51cf6483 100644
--- a/lib/jkqtmathtext/jkqtmathtext.cpp
+++ b/lib/jkqtmathtext/jkqtmathtext.cpp
@@ -3263,7 +3263,7 @@ void JKQTmathText::useXITS()
#ifdef AUTOLOAD_XITS_FONTS
//qDebug()<<"has XITS: "<get_mathText()->useXITS();
+#endif
parent->get_mathText()->set_fontSize(fontSize*parent->get_fontSizeMultiplier());
parent->get_mathText()->set_fontColor(color);
parent->get_mathText()->parse(text);
diff --git a/screenshots/jkqtplotter_simpletest_logaxes.png b/screenshots/jkqtplotter_simpletest_logaxes.png
index 3b14801aa2..e40d2ea194 100644
Binary files a/screenshots/jkqtplotter_simpletest_logaxes.png and b/screenshots/jkqtplotter_simpletest_logaxes.png differ
diff --git a/screenshots/jkqtplotter_simpletest_logaxes_highqmathrendering.png b/screenshots/jkqtplotter_simpletest_logaxes_highqmathrendering.png
new file mode 100644
index 0000000000..3e8fa0d6a7
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diff --git a/screenshots/jkqtplotter_simpletest_logaxes_lowqmathrendering.png b/screenshots/jkqtplotter_simpletest_logaxes_lowqmathrendering.png
new file mode 100644
index 0000000000..3aba3b2647
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diff --git a/screenshots/jkqtplotter_simpletest_logaxes_nominorgrid.png b/screenshots/jkqtplotter_simpletest_logaxes_nominorgrid.png
new file mode 100644
index 0000000000..5009bebb29
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diff --git a/screenshots/logaxis_set_labelType.png b/screenshots/logaxis_set_labelType.png
new file mode 100644
index 0000000000..33d2cf3bef
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diff --git a/screenshots/logaxis_set_minorticks.png b/screenshots/logaxis_set_minorticks.png
new file mode 100644
index 0000000000..b0a2023aec
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diff --git a/test/jkqtplotter_simpletest_logaxes/README.md b/test/jkqtplotter_simpletest_logaxes/README.md
index 7cbc7636ed..2c7faf12ae 100644
--- a/test/jkqtplotter_simpletest_logaxes/README.md
+++ b/test/jkqtplotter_simpletest_logaxes/README.md
@@ -41,29 +41,70 @@ Then a `JKQTPgeoText` is added to the graph, which shows the function plotted in
```c++
// 4. Also we add a text-element in the plot to show the plotted function
// This element (JKQTPgeoText) is taken from the set of geometric elements
- // and is simply parametrized by a position (1.8/10) and the text to display.
+ // and is simply parametrized by a position (1.25/10) and the text to display.
// In addition you can also set the font size (here to 15)
- plot.addGraph(new JKQTPgeoText(&plot, 1.8, 10, "\\frac{A}{A_{stat}}=\\frac{1}{\\sqrt{\\left(1-\\eta^2\\right)^2+\\left(2{\\eta}D\\right)^2}}", 15));
- // for nicer rendering we set the fonts used by the internal LaTeX parser instance to XITS
- plot.get_plotter()->get_mathText()->useXITS();
+ // Use '$...$' around the actual math string to ensure rendering with a math font
+ // (the internal renderer uses XITS fonts by default, which are free and auto-distributed
+ // and loaded in the library). If you don't use the math-mode modifiers, the default
+ // font of the other rendering text is used, which might not be suitable for
+ // high-quality math rendering.
+ plot.addGraph(new JKQTPgeoText(&plot, 1.25, 10, "$\\frac{A}{A_{stat}}=\\frac{1}{\\sqrt{\\left(1-\\eta^2\\right)^2+\\left(2{\\eta}D\\right)^2}}$", 15));
```
+The difference between not using and using `$...$` for the equation can be seen below (left: no $-math-mode, right: using $-math-mode):
+ 
Finally the y-axis is switched to logarithmic scaling and the axis labels are set:
```c++
- // 4. set y-axis to logarithmic (x-axis would be analogous)
- // and set axis labels (using LaTeX notation)
+// 5. set y-axis to logarithmic (x-axis would be analogous, but using `plot.get_xAxis()`)
plot.get_yAxis()->set_logAxis(true);
- plot.get_yAxis()->set_axisLabel("Amplitude A/A_{stat}");
- plot.get_xAxis()->set_axisLabel("relative driving frequency \\eta=\\omega/\\omega_0");
+ // now we set the number of label ticks to 9 (you give the count if minor between two majors,
+ // so if you want ticks for 1,2,3,...,10,20,30,...,100... you need to use 9:
+ plot.get_yAxis()->set_minorTicks(9);
+ // the minor grid is not shown by default. You can switch it on:
+ plot.get_yAxis()->set_drawMinorGrid(true);
+ // usually axis ticks are shown as numbers 0.01, 0.1, 1, 10, ... You can also force the scientific
+ // power-of-10 notation, using:
+ plot.get_yAxis()->set_labelType(JKQTPCALTexponent);
+ // the number of digits in JKQTPCALTexponent determines which labels are drawn in standard-notation,
+ // as compared to power-notation (e.g. if set to 1, the labels 0.1=10^{-1}, 1, 10 are shown in
+ // standard notation, the rest in power-notation. This tweak improves readability)
+ plot.get_yAxis()->set_labelDigits(0);
+ // minor tick labels are usually not displayed, but you can switch them on, using
+ //plot.get_yAxis()->set_minorTickLabelsEnabled(true);
+ // the axis font sizes can be set with:
+ plot.get_yAxis()->set_tickLabelFontSize(10); // axis tick labels
+ plot.get_yAxis()->set_minorTickLabelFontSize(7); // minor axis tick labels
+ plot.get_yAxis()->set_labelFontSize(14); // axis label size
+ plot.get_xAxis()->set_tickLabelFontSize(10); // axis tick labels
+ plot.get_xAxis()->set_minorTickLabelFontSize(7); // minor axis tick labels
+ plot.get_xAxis()->set_labelFontSize(14); // axis label size
+ // ... and finally set axis labels (using LaTeX notation and $...$ to improve rendering)
+ plot.get_yAxis()->set_axisLabel("Amplitude $A/A_{stat}$");
+ plot.get_xAxis()->set_axisLabel("relative driving frequency $\\eta=\\omega/\\omega_0$");
```
+As an alternative `JKQTPCALTexponentCharacter` does not use the power-of-10 notation, but uses the usual unit-characters, e.g. 0.001=1m, 0.000001=1ยต, 10000=10k, ...
+
The result looks like this:
-
+
Without the logarithmic scaling we would have:
-
+
+
+Switching the minor grid off results in a plot like this:
+
+
+
+These examples show the results for different typical values for `set_minorTicks()`:
+
+
+These examples show the results for different typical values for `set_labelType()`:
+
+
+These examples show the results for different typical values for `set_labelType()`:
+
[Back to JKQTPlotter main page](https://github.com/jkriege2/JKQtPlotter/)
\ No newline at end of file
diff --git a/test/jkqtplotter_simpletest_logaxes/jkqtplotter_simpletest_logaxes.cpp b/test/jkqtplotter_simpletest_logaxes/jkqtplotter_simpletest_logaxes.cpp
index e88c6b41a5..f05c17b925 100644
--- a/test/jkqtplotter_simpletest_logaxes/jkqtplotter_simpletest_logaxes.cpp
+++ b/test/jkqtplotter_simpletest_logaxes/jkqtplotter_simpletest_logaxes.cpp
@@ -49,7 +49,7 @@ int main(int argc, char* argv[])
graph->set_lineWidth(1.5);
// graph title is made from symbol+penstyle
- graph->set_title(QString("D=\\delta/\\omega_0=%1").arg(D[id]));
+ graph->set_title(QString("$D=\\delta/\\omega_0=%1$").arg(D[id]));
// add the graph to the plot, so it is actually displayed
plot.addGraph(graph);
@@ -59,23 +59,47 @@ int main(int argc, char* argv[])
// This element (JKQTPgeoText) is taken from the set of geometric elements
// and is simply parametrized by a position (1.25/10) and the text to display.
// In addition you can also set the font size (here to 15)
- plot.addGraph(new JKQTPgeoText(&plot, 1.25, 10, "\\frac{A}{A_{stat}}=\\frac{1}{\\sqrt{\\left(1-\\eta^2\\right)^2+\\left(2{\\eta}D\\right)^2}}", 15));
- // for nicer rendering we set the fonts used by the internal LaTeX parser instance to XITS
- //plot.get_plotter()->get_mathText()->useXITS();
+ // Use '$...$' around the actual math string to ensure rendering with a math font
+ // (the internal renderer uses XITS fonts by default, which are free and auto-distributed
+ // and loaded in the library). If you don't use the math-mode modifiers, the default
+ // font of the other rendering text is used, which might not be suitable for
+ // high-quality math rendering.
+ plot.addGraph(new JKQTPgeoText(&plot, 1.25, 10, "$\\frac{A}{A_{stat}}=\\frac{1}{\\sqrt{\\left(1-\\eta^2\\right)^2+\\left(2{\\eta}D\\right)^2}}$", 15));
- // 4. set y-axis to logarithmic (x-axis would be analogous)
- // and set axis labels (using LaTeX notation)
+ // 5. set y-axis to logarithmic (x-axis would be analogous, but using `plot.get_xAxis()`)
plot.get_yAxis()->set_logAxis(true);
- plot.get_yAxis()->set_axisLabel("Amplitude A/A_{stat}");
- plot.get_xAxis()->set_axisLabel("relative driving frequency \\eta=\\omega/\\omega_0");
+ // now we set the number of label ticks to 9 (you give the count if minor between two majors,
+ // so if you want ticks for 1,2,3,...,10,20,30,...,100... you need to use 9:
+ plot.get_yAxis()->set_minorTicks(9);
+ // the minor grid is not shown by default. You can switch it on:
+ plot.get_yAxis()->set_drawMinorGrid(true);
+ // usually axis ticks are shown as numbers 0.01, 0.1, 1, 10, ... You can also force the scientific
+ // power-of-10 notation, using:
+ plot.get_yAxis()->set_labelType(JKQTPCALTexponent);
+ // the number of digits in JKQTPCALTexponent determines which labels are drawn in standard-notation,
+ // as compared to power-notation (e.g. if set to 1, the labels 0.1=10^{-1}, 1, 10 are shown in
+ // standard notation, the rest in power-notation. This tweak improves readability)
+ plot.get_yAxis()->set_labelDigits(0);
+ // minor tick labels are usually not displayed, but you can switch them on, using
+ //plot.get_yAxis()->set_minorTickLabelsEnabled(true);
+ // the axis font sizes can be set with:
+ plot.get_yAxis()->set_tickLabelFontSize(10); // axis tick labels
+ plot.get_yAxis()->set_minorTickLabelFontSize(7); // minor axis tick labels
+ plot.get_yAxis()->set_labelFontSize(14); // axis label size
+ plot.get_xAxis()->set_tickLabelFontSize(10); // axis tick labels
+ plot.get_xAxis()->set_minorTickLabelFontSize(7); // minor axis tick labels
+ plot.get_xAxis()->set_labelFontSize(14); // axis label size
+ // ... and finally set axis labels (using LaTeX notation and $...$ to improve rendering)
+ plot.get_yAxis()->set_axisLabel("Amplitude $A/A_{stat}$");
+ plot.get_xAxis()->set_axisLabel("relative driving frequency $\\eta=\\omega/\\omega_0$");
- // 5. autoscale the plot so the graph is contained
+ // 6. autoscale the plot so the graph is contained
plot.zoomToFit();
- // 6. show plotter and make it a decent size
+ // 7. show plotter and make it a decent size
plot.show();
- plot.resize(600,400);
+ plot.resize(700,500);
return app.exec();
}