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161 lines
4.1 KiB
Java
161 lines
4.1 KiB
Java
/*
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* Apocalypse Laboratories
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* Open Source License
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*
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* Source code can be used for any purpose, as long as:
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* - Compiled binaries are rebranded and trademarks are not
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* visible by the end user at any time, except to give
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* credit to Apocalypse Laboratories, such as by showing
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* "Based on <product> by Apocalypse Laboratories" or a
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* similar notice;
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* - You do not use the code for evil;
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* - Rebranded compiled applications have significant
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* differences in functionality;
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* - and you provide your modified source code for download,
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* under the terms of the GNU LGPL v3 or a comparable
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* license.
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*
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* Compiled binaries cannot be redistributed or mirrored,
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* unless:
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* - You have written permission from Apocalypse Laboratories;
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* - Downloads are not available from Apocalypse Laboratories,
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* not even behind a paywall or other blocking mechanism;
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* - or you have received a multi-computer license, in which
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* case you should take measures to prevent unauthorized
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* downloads, such as preventing download access from the
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* Internet.
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*/
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package net.apocalypselabs.symat;
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import javax.swing.JOptionPane;
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import org.matheclipse.core.eval.EvalUtilities;
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import org.matheclipse.parser.client.math.MathException;
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/**
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* These functions are accessible from JavaScript.
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*
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* There are a lot of aliases in here too.
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*
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* @author Skylar
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*/
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public class Functions {
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EvalUtilities util = new EvalUtilities(false, true);
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Graph graphwin = new Graph(true);
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/*
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Useful interactions
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*/
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public void notify(Object message) {
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JOptionPane.showInternalMessageDialog(MainGUI.mainPane, message.toString());
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}
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public String ask(String question) {
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return JOptionPane.showInternalInputDialog(MainGUI.mainPane, question);
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}
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public void write(String content) {
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// TODO: enable output logging
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}
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/*
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Math commands
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*/
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public String d(String function, String idv) {
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return util.evaluate("diff("+function+","+idv+")").toString();
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}
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public String sym(String input) {
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return util.evaluate(input).toString();
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}
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// Shortcut for non-JS math evaluation.
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public String $(String input) {
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return sym(input);
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}
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public String replace(String function, String variable, String newvar) {
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return function.replaceAll(variable, newvar);
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}
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public double subs(String function, String variable, String newvar) {
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return numof(function.replaceAll(variable, newvar));
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}
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public double numof(String f) {
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try {
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return Double.parseDouble(util.evaluate("N("+f+")").toString());
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} catch (MathException | NumberFormatException ex) {
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return 0.0;
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}
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}
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/*
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Graphing interfaces
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*/
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public void plot(String function) {
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graphwin.setVisible(true);
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graphwin.graphFunction(function);
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}
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public void ezplot(String f) {
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plot(f);
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}
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public void graph(String f) {
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plot(f);
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}
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public void plotname(String t) {
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graphwin.setVisible(true);
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graphwin.setWindowTitle(t);
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}
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public String plotname() {
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return graphwin.getTitle();
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}
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public void plotclr() {
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graphwin.clearDraw();
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}
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public void clearplot() {
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plotclr();
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}
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public void plotclear() {
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plotclr();
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}
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public void plotscale(int level) {
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graphwin.setVisible(true);
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graphwin.setZoom(level);
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}
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public void drawdot(double x, double y) {
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graphwin.setVisible(true);
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graphwin.drawDot(x, y);
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}
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/*
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Other
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*/
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public String sysinfo() {
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String info = "==Java System Information==\n";
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info += "Java version: "+System.getProperty("java.version");
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info += "\nJava vendor: "+System.getProperty("java.vendor");
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info += "\nJava home: "+System.getProperty("java.home");
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return info;
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}
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/*
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Constructor.
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*/
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public Functions() {
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MainGUI.mainPane.add(graphwin);
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}
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}
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