jlatexmathfx general Information

jlatexmathfx is a port of jlatexmath to javafx

The control is usable but not thoroughly tested.

The performance has not been optimized but is acceptable on local tests. Upon first use initialization will happen but subsequent calls will be faster.

Version

0.3.3

• This version fixes a bug in the size calculation and prevents throwing exception if setting a wrong formula. If the formula string cannot be parsed it will be set to \text{Invalid Formula}

Building the project

The project uses maven as build tool. To generate the jar use:

maven package

Usage

LatexMathControl is a styleable javafx control.

The following properties control the visulaization

Property	Default	CSS Property Purpose
formula	""	fx-formula
size	Default javafx font size	fx-size
bgColor	Color.Transparant	fx-bg
textColor	Color.BLACK	fx-text-color

Example

This example has been adapted from the origial swing based distribution. The code produces the following output

public class FXApp extends Application {
    @Override
    public void start(Stage primaryStage) throws Exception {
        String latex = "\\begin{array}{l}";
        latex += "\\forall\\varepsilon\\in\\mathbb{R}_+^*\\ \\exists\\eta>0\\ |x-x_0|\\leq\\eta\\Longrightarrow|f(x)-f(x_0)|\\leq\\varepsilon\\\\";
        latex += "\\det\\begin{bmatrix}a_{11}&a_{12}&\\cdots&a_{1n}\\\\a_{21}&\\ddots&&\\vdots\\\\\\vdots&&\\ddots&\\vdots\\\\a_{n1}&\\cdots&\\cdots&a_{nn}\\end{bmatrix}\\overset{\\mathrm{def}}{=}\\sum_{\\sigma\\in\\mathfrak{S}_n}\\varepsilon(\\sigma)\\prod_{k=1}^n a_{k\\sigma(k)}\\\\";
        latex += "\\sideset{_\\alpha^\\beta}{_\\gamma^\\delta}{\\begin{pmatrix}a&b\\\\c&d\\end{pmatrix}}\\\\";
        latex += "\\int_0^\\infty{x^{2n} e^{-a x^2}\\,dx} = \\frac{2n-1}{2a} \\int_0^\\infty{x^{2(n-1)} e^{-a x^2}\\,dx} = \\frac{(2n-1)!!}{2^{n+1}} \\sqrt{\\frac{\\pi}{a^{2n+1}}}\\\\";
        latex += "\\int_a^b{f(x)\\,dx} = (b - a) \\sum\\limits_{n = 1}^\\infty  {\\sum\\limits_{m = 1}^{2^n  - 1} {\\left( { - 1} \\right)^{m + 1} } } 2^{ - n} f(a + m\\left( {b - a} \\right)2^{-n} )\\\\";
        latex += "\\int_{-\\pi}^{\\pi} \\sin(\\alpha x) \\sin^n(\\beta x) dx = \\textstyle{\\left \\{ \\begin{array}{cc} (-1)^{(n+1)/2} (-1)^m \\frac{2 \\pi}{2^n} \\binom{n}{m} & n \\mbox{ odd},\\ \\alpha = \\beta (2m-n) \\\\ 0 & \\mbox{otherwise} \\\\ \\end{array} \\right .}\\\\";
        latex += "L = \\int_a^b \\sqrt{ \\left|\\sum_{i,j=1}^ng_{ij}(\\gamma(t))\\left(\\frac{d}{dt}x^i\\circ\\gamma(t)\\right)\\left(\\frac{d}{dt}x^j\\circ\\gamma(t)\\right)\\right|}\\,dt\\\\";
        latex += "\\begin{array}{rl} s &= \\int_a^b\\left\\|\\frac{d}{dt}\\vec{r}\\,(u(t),v(t))\\right\\|\\,dt \\\\ &= \\int_a^b \\sqrt{u'(t)^2\\,\\vec{r}_u\\cdot\\vec{r}_u + 2u'(t)v'(t)\\, \\vec{r}_u\\cdot\\vec{r}_v+ v'(t)^2\\,\\vec{r}_v\\cdot\\vec{r}_v}\\,\\,\\, dt. \\end{array}\\\\";
        latex += "\\end{array}";

        LateXMathControl lc=new LateXMathControl(latex);
        StackPane pane=new StackPane();
        pane.getChildren().add(lc);

        Scene scene=new Scene(pane);
        primaryStage.setScene(scene);
        primaryStage.setWidth(800);
        primaryStage.setHeight(600);

        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }

}

Avalability via Gradle or maven

Maven dependency

Add the add the following repository and dependency

<?xml version="1.0" encoding="UTF-8" ?>
<settings xsi:schemaLocation='http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd'
          xmlns='http://maven.apache.org/SETTINGS/1.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'>
    
    <profiles>
        <profile>
            <repositories>
                <repository>
                    <snapshots>
                        <enabled>false</enabled>
                    </snapshots>
                    <id>bintray-bitstormger-maven</id>
                    <name>bintray</name>
                    <url>https://dl.bintray.com/bitstormger/maven</url>
                </repository>
            </repositories>
            <pluginRepositories>
                <pluginRepository>
                    <snapshots>
                        <enabled>false</enabled>
                    </snapshots>
                    <id>bintray-bitstormger-maven</id>
                    <name>bintray-plugins</name>
                    <url>https://dl.bintray.com/bitstormger/maven</url>
                </pluginRepository>
            </pluginRepositories>
            <id>bintray</id>
        </profile>
    </profiles>
    <activeProfiles>
        <activeProfile>bintray</activeProfile>
    </activeProfiles>
</settings>

<dependency>
  <groupId>com.proudapes</groupId>
  <artifactId>jlatexmathfx</artifactId>
  <version>0.3.3</version>
</dependency>

Gradle dependency

compile group: 'com.proudapes', name: 'jlatexmathfx', version: '0.3.3'

License

GPL V2