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Graph redraws when scaled, graphing handled by thread, import math in Python, graph scales no longer hardcoded

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master
skylarmt 10 years ago
parent d4057afde7
commit 76bf5fbc85
6 changed files with 189 additions and 102 deletions
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2
src/net/apocalypselabs/symat/CodeRunner.java
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@ -73,7 +73,7 @@ public class CodeRunner {
case "python":
se = new ScriptEngineManager().getEngineByName("python");
try {
se.eval("from net.apocalypselabs.symat import Functions\n_=Functions()\n");
se.eval("from math import *\nfrom net.apocalypselabs.symat import Functions\n_=Functions()\n");
} catch (Exception ex) {
initError(ex);
}

2
src/net/apocalypselabs/symat/Debug.java
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@ -35,7 +35,7 @@ package net.apocalypselabs.symat;
public class Debug {
// If output should be on or off
public static final boolean DEBUG = false;
public static final boolean DEBUG = true;
public static void println(Object data) {
if (DEBUG) {

20
src/net/apocalypselabs/symat/Functions.java
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@ -111,7 +111,7 @@ public class Functions {
Graphing interfaces
*/
public void plot(String function) {
graphwin.setVisible(true);
showGraph();
graphwin.graphFunction(function);
}
@ -124,13 +124,16 @@ public class Functions {
}
public void plotname(String t) {
graphwin.setVisible(true);
graphwin.setWindowTitle(t);
}
public String plotname() {
return graphwin.getTitle();
}
public void plot() {
showGraph();
}
public void plotclr() {
graphwin.clearDraw();
@ -145,12 +148,12 @@ public class Functions {
}
public void plotscale(int level) {
graphwin.setVisible(true);
showGraph();
graphwin.setZoom(level);
}
public void drawdot(double x, double y) {
graphwin.setVisible(true);
showGraph();
graphwin.drawDot(x, y);
}
@ -165,10 +168,17 @@ public class Functions {
return info;
}
/**
* Make sure the graph window shows.
*/
private void showGraph() {
graphwin.setVisible(true);
graphwin.toFront();
}
/*
Constructor.
*/
public Functions() {
MainGUI.mainPane.add(graphwin);
MainGUI.loadFrame(graphwin, false);
}
}

12
src/net/apocalypselabs/symat/Graph.form
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@ -27,7 +27,7 @@
<Property name="text" type="java.lang.String" value="Edit"/>
</Properties>
<SubComponents>
<MenuItem class="javax.swing.JMenuItem" name="jMenuItem1">
<MenuItem class="javax.swing.JMenuItem" name="clrGraphBtn">
<Properties>
<Property name="accelerator" type="javax.swing.KeyStroke" editor="org.netbeans.modules.form.editors.KeyStrokeEditor">
<KeyStroke key="Ctrl+W"/>
@ -35,7 +35,7 @@
<Property name="text" type="java.lang.String" value="Clear Graph"/>
</Properties>
<Events>
<EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="jMenuItem1ActionPerformed"/>
<EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="clrGraphBtnActionPerformed"/>
</Events>
</MenuItem>
<MenuItem class="javax.swing.JMenuItem" name="jMenuItem6">
@ -120,7 +120,7 @@
<EmptySpace max="-2" attributes="0"/>
<Component id="inBox" min="-2" pref="215" max="-2" attributes="0"/>
<EmptySpace max="-2" attributes="0"/>
<Component id="jButton1" min="-2" max="-2" attributes="0"/>
<Component id="plotBtn" min="-2" max="-2" attributes="0"/>
</Group>
<Component id="gLbl" alignment="0" min="-2" max="-2" attributes="0"/>
</Group>
@ -137,7 +137,7 @@
<Group type="103" groupAlignment="3" attributes="0">
<Component id="inBox" alignment="3" min="-2" max="-2" attributes="0"/>
<Component id="jLabel1" alignment="3" min="-2" max="-2" attributes="0"/>
<Component id="jButton1" alignment="3" min="-2" max="-2" attributes="0"/>
<Component id="plotBtn" alignment="3" min="-2" max="-2" attributes="0"/>
</Group>
<EmptySpace max="-2" attributes="0"/>
</Group>
@ -155,13 +155,13 @@
<Property name="text" type="java.lang.String" value="f(x)="/>
</Properties>
</Component>
<Component class="javax.swing.JButton" name="jButton1">
<Component class="javax.swing.JButton" name="plotBtn">
<Properties>
<Property name="text" type="java.lang.String" value="&gt;&gt;"/>
<Property name="toolTipText" type="java.lang.String" value=""/>
</Properties>
<Events>
<EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="jButton1ActionPerformed"/>
<EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="plotBtnActionPerformed"/>
</Events>
</Component>
<Component class="javax.swing.JLabel" name="gLbl">

240
src/net/apocalypselabs/symat/Graph.java
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@ -1,7 +1,7 @@
/*
/*
* Apocalypse Laboratories
* Open Source License
*
*
* Source code can be used for any purpose, as long as:
* - Compiled binaries are rebranded and trademarks are not
* visible by the end user at any time, except to give
@ -14,7 +14,7 @@
* - and you provide your modified source code for download,
* under the terms of the GNU LGPL v3 or a comparable
* license.
*
*
* Compiled binaries cannot be redistributed or mirrored,
* unless:
* - You have written permission from Apocalypse Laboratories;
@ -22,20 +22,23 @@
* not even behind a paywall or other blocking mechanism;
* - or you have received a multi-computer license, in which
* case you should take measures to prevent unauthorized
* downloads, such as preventing download access from the
* downloads, such as preventing download access from the
* Internet.
*/
package net.apocalypselabs.symat;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import static java.lang.Math.abs;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;
import javax.swing.filechooser.FileFilter;
import javax.swing.filechooser.FileNameExtensionFilter;
import org.matheclipse.core.eval.EvalUtilities;
@ -53,6 +56,12 @@ public class Graph extends javax.swing.JInternalFrame {
private boolean standalone = true;
private boolean customName = false;
// History, used for redrawing when scale changed.
private String history = "";
// If a graph is being drawn, set to true, else false
boolean graphing = false;
private double xtimes = 15;
private double ytimes = 15;
private double scale = 1;
@ -103,13 +112,13 @@ public class Graph extends javax.swing.JInternalFrame {
inBox = new javax.swing.JTextField();
jLabel1 = new javax.swing.JLabel();
jButton1 = new javax.swing.JButton();
plotBtn = new javax.swing.JButton();
gLbl = new javax.swing.JLabel();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenuItem2 = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();
jMenuItem1 = new javax.swing.JMenuItem();
clrGraphBtn = new javax.swing.JMenuItem();
jMenuItem6 = new javax.swing.JMenuItem();
jMenuItem3 = new javax.swing.JMenuItem();
scaleLbl = new javax.swing.JMenu();
@ -137,11 +146,11 @@ public class Graph extends javax.swing.JInternalFrame {
jLabel1.setText("f(x)=");
jButton1.setText(">>");
jButton1.setToolTipText("");
jButton1.addActionListener(new java.awt.event.ActionListener() {
plotBtn.setText(">>");
plotBtn.setToolTipText("");
plotBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
plotBtnActionPerformed(evt);
}
});
@ -167,14 +176,14 @@ public class Graph extends javax.swing.JInternalFrame {
jMenu2.setText("Edit");
jMenuItem1.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_W, java.awt.event.InputEvent.CTRL_MASK));
jMenuItem1.setText("Clear Graph");
jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
clrGraphBtn.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_W, java.awt.event.InputEvent.CTRL_MASK));
clrGraphBtn.setText("Clear Graph");
clrGraphBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItem1ActionPerformed(evt);
clrGraphBtnActionPerformed(evt);
}
});
jMenu2.add(jMenuItem1);
jMenu2.add(clrGraphBtn);
jMenuItem6.setText("Scale...");
jMenuItem6.addActionListener(new java.awt.event.ActionListener() {
@ -214,7 +223,7 @@ public class Graph extends javax.swing.JInternalFrame {
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(inBox, javax.swing.GroupLayout.PREFERRED_SIZE, 215, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton1))
.addComponent(plotBtn))
.addComponent(gLbl, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(0, 0, 0))
);
@ -227,45 +236,95 @@ public class Graph extends javax.swing.JInternalFrame {
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(inBox, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel1)
.addComponent(jButton1))
.addComponent(plotBtn))
.addContainerGap())
);
pack();
}// </editor-fold>//GEN-END:initComponents
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
CodeRunner cr = new CodeRunner();
String formula = inBox.getText().replaceAll("x", "\\$x");
EvalUtilities solver = new EvalUtilities();
double xx, yy, xo, yo, x;
xo = 0;
yo = 0;
gg = gpnl.getGraphics();
drawAxes();
gg.setColor(Color.BLUE);
for (x = (-10 * scale); x <= (10 * scale); x += (10 * scale * .01)) {
try {
cr.setVar("x", x);
yy = (-(Double.parseDouble(solver.evaluate("$x=" + x + ";N[" + formula + "]").toString())) * ytimes) + (gpnl.getHeight() / 2);
//System.err.println(solver.evaluate("$x="+x+";N["+formula+"]").toString());
xx = (x * xtimes) + (gpnl.getWidth() / 2);
//gg.drawOval(xx-1, yy-1, 2, 2);
if (x != (-10 * scale)) {
gg.drawLine((int) xo, (int) yo, (int) xx, (int) yy);
}
xo = xx;
yo = yy;
} catch (MathException | NumberFormatException ex) {
private void plotBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_plotBtnActionPerformed
new GraphThread(inBox.getText()).start();
}//GEN-LAST:event_plotBtnActionPerformed
}
/**
* Graph the graphs without holding up everything else.
*/
private class GraphThread extends Thread {
String[] frmlas;
public GraphThread(String frmla) {
frmlas = new String[1];
frmlas[0] = frmla;
}
gg.translate(gpnl.getWidth() / 2, gpnl.getHeight() / 2);
dispGraph();
if (!customName) {
setTitle("Graph | " + inBox.getText());
public GraphThread(String[] frmla) {
frmlas = frmla;
}
@Override
public void run() {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
inBox.setEnabled(false);
plotBtn.setEnabled(false);
for (Component mu : jMenuBar1.getComponents()) {
mu.setEnabled(false);
}
}
});
for (String formula : frmlas) {
CodeRunner cr = new CodeRunner();
formula = formula.replaceAll("x", "\\$x");
EvalUtilities solver = new EvalUtilities();
double xx, yy, xo, yo, x;
xo = 0;
yo = 0;
gg = gpnl.getGraphics();
drawAxes();
gg.setColor(Color.BLUE);
for (x = (-10 * scale); x <= (10 * scale); x += (10 * scale * .01)) {
try {
cr.setVar("x", x);
yy = (-(Double.parseDouble(solver.evaluate("$x=" + x + ";N[" + formula + "]").toString())) * ytimes) + (gpnl.getHeight() / 2);
//System.err.println(solver.evaluate("$x="+x+";N["+formula+"]").toString());
xx = (x * xtimes) + (gpnl.getWidth() / 2);
//gg.drawOval(xx-1, yy-1, 2, 2);
if (x != (-10 * scale)) {
gg.drawLine((int) xo, (int) yo, (int) xx, (int) yy);
}
xo = xx;
yo = yy;
} catch (MathException | NumberFormatException ex) {
}
}
gg.translate(gpnl.getWidth() / 2, gpnl.getHeight() / 2);
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
dispGraph();
if (!customName) {
setTitle("Graph | " + inBox.getText());
}
history += inBox.getText() + "\n";
}
});
}
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
inBox.setEnabled(true);
plotBtn.setEnabled(true);
for (Component mu : jMenuBar1.getComponents()) {
mu.setEnabled(true);
}
}
});
}
}//GEN-LAST:event_jButton1ActionPerformed
}
private void formComponentShown(java.awt.event.ComponentEvent evt) {//GEN-FIRST:event_formComponentShown
gg = gpnl.getGraphics();
@ -280,33 +339,31 @@ public class Graph extends javax.swing.JInternalFrame {
* @param zoomLevel Level to zoom. 0 is default (10x10).
*/
public void setZoom(int zoomLevel) {
switch (zoomLevel) {
case -1:
xtimes = 7.5;
ytimes = 7.5;
scale = 2;
case 1:
xtimes = 30;
ytimes = 30;
scale = .5;
break;
case 2:
xtimes = 60;
ytimes = 60;
scale = .25;
break;
case 3:
xtimes = 120;
ytimes = 120;
scale = .125;
break;
default:
xtimes = 15;
ytimes = 15;
scale = 1;
if (zoomLevel >= 0) {
xtimes = 15.0 * (zoomLevel + 1.0);
ytimes = 15.0 * (zoomLevel + 1.0);
scale = 1.0 / (zoomLevel + 1.0);
} else {
xtimes = 15.0 / (abs(zoomLevel) + 1.0);
ytimes = 15.0 / (abs(zoomLevel) + 1.0);
scale = 1.0 * (abs(zoomLevel) + 1.0);
}
scaleLbl.setText("Scale: 1 to " + scale);
clearDraw();
Debug.println("Scaled to xtimes=" + xtimes + ", ytimes=" + ytimes + ", scale=1to" + scale);
clearDraw(false);
if (!history.trim().equals("")) {
String temp = "";
for (String cmd : history.trim().split("\n")) {
cmd = cmd.trim();
if (!cmd.equals("")) {
temp += cmd + "\n";
}
}
history = temp.trim();
new GraphThread(history.split("\n")).start();
inBox.setText("");
}
}
private void dispGraph() {
@ -321,18 +378,13 @@ public class Graph extends javax.swing.JInternalFrame {
private void inBoxKeyTyped(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_inBoxKeyTyped
if (evt.getKeyChar() == '\n') {
jButton1ActionPerformed(null);
plotBtnActionPerformed(null);
}
}//GEN-LAST:event_inBoxKeyTyped
private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem1ActionPerformed
gpnl = new BufferedImage(300, 300, BufferedImage.TYPE_INT_ARGB);
gg = gpnl.getGraphics();
drawAxes();
gg.translate(gpnl.getWidth() / 2, gpnl.getHeight() / 2);
dispGraph();
setTitle("Graph");
}//GEN-LAST:event_jMenuItem1ActionPerformed
private void clrGraphBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_clrGraphBtnActionPerformed
clearDraw();
}//GEN-LAST:event_clrGraphBtnActionPerformed
private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem2ActionPerformed
int r = fc.showSaveDialog(this);
@ -363,9 +415,10 @@ public class Graph extends javax.swing.JInternalFrame {
private void jMenuItem6ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem6ActionPerformed
try {
int size = Integer.parseInt(JOptionPane.showInternalInputDialog(this,
"Graph scale, -1 to 3 (-1 least detail, 3 most detail):",
"Graph scale (negative numbers less detail, positive more detail):",
"Scale",
JOptionPane.QUESTION_MESSAGE));
Debug.println("Scaling to: " + size);
setZoom(size);
} catch (Exception ex) {
@ -380,7 +433,7 @@ public class Graph extends javax.swing.JInternalFrame {
*/
public void graphFunction(String f) {
inBox.setText(f);
jButton1ActionPerformed(null);
plotBtnActionPerformed(null);
}
private String addSaveExt(String path) {
@ -413,7 +466,24 @@ public class Graph extends javax.swing.JInternalFrame {
* Erase the graph.
*/
public void clearDraw() {
jMenuItem1ActionPerformed(null);
clearDraw(true);
}
/**
* Erase the graph.
*
* @param alsoHistory True if history should be removed
*/
public void clearDraw(boolean alsoHistory) {
gpnl = new BufferedImage(300, 300, BufferedImage.TYPE_INT_ARGB);
gg = gpnl.getGraphics();
drawAxes();
gg.translate(gpnl.getWidth() / 2, gpnl.getHeight() / 2);
dispGraph();
setTitle("Graph");
if (alsoHistory) {
history = "";
}
}
private void drawAxes() {
@ -429,17 +499,17 @@ public class Graph extends javax.swing.JInternalFrame {
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JMenuItem clrGraphBtn;
private javax.swing.JLabel gLbl;
private javax.swing.JTextField inBox;
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JMenuItem jMenuItem2;
private javax.swing.JMenuItem jMenuItem3;
private javax.swing.JMenuItem jMenuItem6;
private javax.swing.JButton plotBtn;
private javax.swing.JMenu scaleLbl;
// End of variables declaration//GEN-END:variables
}

15
src/net/apocalypselabs/symat/MainGUI.java
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@ -448,11 +448,12 @@ public class MainGUI extends javax.swing.JFrame {
/**
* Adds the given JInternalFrame to the mainPane. Automatically does layout
* and sets visible as well.
* and sets visible (if show==true).
*
* @param frame
* @param frame The frame
* @param show Should the frame be visible?
*/
public static void loadFrame(JInternalFrame frame) {
public static void loadFrame(JInternalFrame frame, boolean show) {
int w = frame.getWidth();
int h = frame.getHeight();
int pw = mainPane.getWidth();
@ -473,9 +474,15 @@ public class MainGUI extends javax.swing.JFrame {
if (frame.getLocation().y < 0) {
frame.setLocation(frame.getLocation().x, 0);
}
frame.setVisible(true);
if (show) {
frame.setVisible(true);
}
//updateDisplay();
}
public static void loadFrame(JInternalFrame frame) {
loadFrame(frame, true);
}
public static void cascade() {
JInternalFrame[] frames = mainPane.getAllFrames();

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