Buat jam analog

Tujuan: Untuk membuat jam analog yang berfungsi menggunakan bahasa pemrograman apa pun.

Persyaratan:

• Jam Anda harus menampilkan setidaknya petunjuk jam dan menit.
• Jam yang dihasilkan bisa dalam bentuk gambar, animasi atau ASCII-art.
• Diharapkan jam menunjukkan waktu setempat.

Pilihan:

• Anda mungkin membuat jam Anda untuk menunjukkan penunjuk detik di samping penunjuk menit dan jam.
• Anda juga dapat membuat zona waktu dapat dikonfigurasi jika diinginkan.
• Anda bebas memilih jika Anda bisa mengabaikan atau menangani masalah tentang detik kabisat.
• Anda mungkin berpikir tentang apa yang terjadi pada program Anda jika pengguna menyesuaikan jam sistem atau jika perubahan siang hari terjadi.

Karena ini adalah kontes popularitas , harap berkreasi dan menggambar beberapa jam yang bagus dan indah untuk mendapatkan penghargaan. Sebagian besar jawaban yang dimenangkan menang , dengan pengecualian bahwa saya tidak akan menerima jawaban saya sendiri.

Akhirnya, disarankan (tetapi tidak diharuskan) agar Anda memposting setidaknya satu tangkapan layar (atau keluaran teks untuk seni ASCII) dari jam Anda dalam jawaban Anda. Dengan cara ini, orang tidak perlu mengkompilasi dan menjalankannya untuk melihat apa itu.

Pertanyaan ini dimaksudkan untuk membangkitkan kembali pertanyaan yang dihapus.

Perhatikan bahwa ini bukan duplikat dari pertanyaan lain ini . Pertanyaan itu adalah golf kode yang meminta ASCII-art. Yang ini tidak terbatas pada seni ASCII dan sebagai gantinya adalah kontes popularitas , jadi jawabannya diharapkan akan sangat berbeda.

SVG + Javascript

▶▶▶ Demo langsung di sini ◀◀◀

Ini menggunakan fungsi animasi bawaan SVG untuk memutar tangan, dengan sedikit Javascript tambahan untuk mengambil waktu setempat dan mengatur posisi tangan awal. Ini berfungsi baik di Chrome dan Safari, dan harus kompatibel dengan sebagian besar browser modern karena tidak menggunakan efek filter apa pun.

<?xml version="1.0"?>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 400 400" width="400" height="400" version="1.0">
  <defs>
    <linearGradient id="a" x1="0%" y1="100%" x2="0%" y2="0%">
      <stop offset="0%" style="stop-color:#777799"/>
      <stop offset="100%" style="stop-color:#ffffff"/>
    </linearGradient>
    <linearGradient id="b" x1="0%" y1="100%" x2="0%" y2="0%">
      <stop offset="0%" style="stop-color:#ffffff"/>
      <stop offset="25%" style="stop-color:#b6b6cc"/>
      <stop offset="40%" style="stop-color:#515177"/>
      <stop offset="48%" style="stop-color:#ffffff"/>
      <stop offset="56%" style="stop-color:#ffffff"/>
      <stop offset="75%" style="stop-color:#8b8baa"/>
      <stop offset="98%" style="stop-color:#efeff4"/>
      <stop offset="100%" style="stop-color:#fbfbfc"/>
    </linearGradient>
    <linearGradient id="c" x1="0%" y1="100%" x2="0%" y2="0%">
      <stop offset="0%" style="stop-color:#ffffff"/>
      <stop offset="100%" style="stop-color:#777799"/>
    </linearGradient>
    <radialGradient id="d" cx="50%" cy="50%" r="50%" fx="50%" fy="50%">
      <stop offset="0%" style="stop-color:#ffffff"/>
      <stop offset="40%" style="stop-color:#ffffff"/>
      <stop offset="70%" style="stop-color:#e6e6ee"/>
      <stop offset="92%" style="stop-color:#b6b6cc"/>
      <stop offset="100%" style="stop-color:#636388"/>
    </radialGradient>
    <radialGradient id="e" cx="50%" cy="150%" r="200%" fx="50%" fy="150%">
      <stop offset="0%" style="stop-color:#ffffff;stop-opacity:0"/>
      <stop offset="59%" style="stop-color:#ffffff;stop-opacity:0"/>
      <stop offset="60%" style="stop-color:#ffffff;stop-opacity:0.6"/>
      <stop offset="70%" style="stop-color:#ffffff;stop-opacity:0.3"/>
      <stop offset="100%" style="stop-color:#ffffff;stop-opacity:0.0"/>
    </radialGradient>
  </defs>
  <g transform="translate(200 200)">
    <circle cx="0" cy="0" r="200" fill="#cecedd"/>
    <circle cx="0" cy="0" r="196" stroke="url(#a)" stroke-width="5" fill="url(#b)"/>
    <circle cx="0" cy="0" r="170" stroke="url(#c)" stroke-width="4" fill="url(#d)"/>
    <circle cx="0" cy="0" r="172" stroke="#ffffff" stroke-width="0.5" fill="none"/>
    <circle cx="0" cy="0" r="193.5" stroke="#ffffff" stroke-width="0.5" fill="none"/>
    <g id="O">
      <polygon points="4,155 4,130 -4,130 -4,155" style="fill:#777799;stroke:#313155;stroke-width:1"/>
      <polygon points="4,-155 4,-130 -4,-130 -4,-155" style="fill:#777799;stroke:#313155;stroke-width:1"/>
    </g>
    <g transform="rotate(30)"><use xlink:href="#O"/></g>
    <g transform="rotate(60)"><use xlink:href="#O"/></g>
    <g transform="rotate(90)"><use xlink:href="#O"/></g>
    <g transform="rotate(120)"><use xlink:href="#O"/></g>
    <g transform="rotate(150)"><use xlink:href="#O"/></g>
    <polygon id="h" points="6,-80 6,18 -6,18 -6,-80" style="fill:#232344">
      <animateTransform id="ht" attributeType="xml" attributeName="transform" type="rotate" from="000" to="000" begin="0" dur="86400s" repeatCount="indefinite"/>
    </polygon>
    <polygon id="m" points="3.5,-140 3.5,23 -3.5,23 -3.5,-140" style="fill:#232344">
      <animateTransform id="mt" attributeType="xml" attributeName="transform" type="rotate" from="000" to="000" begin="0" dur="3600s" repeatCount="indefinite"/>
    </polygon>
    <polygon id="s" points="2,-143 2,25 -2,25 -2,-143" style="fill:#232344">
      <animateTransform id="st" attributeType="xml" attributeName="transform" type="rotate" from="000" to="000" begin="0" dur="60s" repeatCount="indefinite"/>
    </polygon>
    <circle cx="0" cy="0" r="163" fill="url(#e)"/>
  </g>
  <script type="text/javascript"><![CDATA[
    var d = new Date();
    var s = d.getSeconds();
    var m = d.getMinutes() + s/60;
    var h = (d.getHours() % 12) + m/60 + s/3600;
    document.getElementById('st').setAttribute('from',s*6);
    document.getElementById('mt').setAttribute('from',m*6);
    document.getElementById('ht').setAttribute('from',h*30);
    document.getElementById('st').setAttribute('to',360+s*6);
    document.getElementById('mt').setAttribute('to',360+m*6);
    document.getElementById('ht').setAttribute('to',360+h*30);
  ]]></script>
</svg>

Java 8

Saya membuat jam yang mengubah warnanya sesuai dengan jam hari, menunjukkan waktu setempat. Seiring waktu berlalu, perlahan-lahan akan berubah warna, menggunakan warna yang lebih cerah di siang hari dan warna yang lebih gelap di malam hari.

Jendela dapat diubah ukurannya dan jam akan mengubah ukuran secara otomatis ke ukuran apa pun yang Anda pilih.

Selanjutnya, jika pengguna menyesuaikan jam sistem atau jika perubahan waktu siang hari terjadi, jam akan secara otomatis mencerminkan itu.

Ada dua bentuk untuk menjalankannya:

1. Menjalankan ClockDemofile, yaitu java clock.ClockDemo. Ini akan membuka jendela dan Anda akan melihat jam di sana.

2. Menjalankan ClockSavefile, yaitu java clock.ClockSave filename width height [HH:mm:ss]. Ini hanya akan menyimpan jam dalam file PNG dengan nama file yang diberikan, lebar dan tinggi. Jam akan digambar dengan waktu yang diberikan, atau jika dihilangkan, dengan waktu saat ini. Misalnya, jika Anda menjalankannya karena java clock.ClockSave clock.png 600 500 12:38:24akan menyimpan jam dalam gambar 600x500 dalam clock.pngfile dan jam akan menunjukkan 12:38:24 AM. Gunakan jam dalam interval 00-23.

Tangkapan layar

Berikut adalah beberapa tangkapan layar dan file yang dihasilkan:

00:36:50 pagi:

02:38:51 pagi:

06:42:13 pagi:

11:15:28:

05:02:37 PM:

07:11:30 PM:

09:29:34 PM:

Kode sumber

Saya memisahkan sumber dalam lima file berbeda dalam sebuah paket bernama clock.

Juga tersedia di GitHub .

ClockDemo.java

package clock;

import java.awt.EventQueue;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;

public class ClockDemo {
    public static void main(String[] args) {
        EventQueue.invokeLater(ClockDemo::runIt);
    }

    private static void runIt() {
        final JFrame j = new JFrame();
        j.setTitle("JClock");
        final JClock clock = new JClock(new CoolPaint());

        j.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                clock.stop();
                j.dispose();
            }
        });

        j.add(clock);
        j.setBounds(20, 20, 600, 500);
        j.setVisible(true);
        clock.start();
    }
}

ClockSave.java

package clock;

import java.io.IOException;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;

public class ClockSave {
    public static void main(String[] args) {

        // Too much arguments.
        if (args.length < 3 || args.length > 4) {
            System.out.println("Bad usage: Should be java clock.ClockSave filename width height [HH:mm:ss]");
            return;
        }

        // Parse the image size.
        int h, w;
        try {
            w = Integer.parseInt(args[1]);
            h = Integer.parseInt(args[2]);
        } catch (NumberFormatException e) {
            System.out.println("Bad usage: Should be java clock.ClockSave filename width height [HH:mm:ss]");
            return;
        }

        // Parse the intended time.
        LocalTime time;
        if (args.length == 4) {
            try {
                DateTimeFormatter df = DateTimeFormatter.ofPattern("HH:mm:ss");
                time = LocalTime.parse(args[3], df);
            } catch (DateTimeParseException e) {
                System.out.println("Bad usage: Should be java clock.ClockSave filename width height [HH:mm:ss]");
                return;
            }
        } else {
            time = LocalTime.now();
        }

        // Save to an image.
        try {
            new CoolPaint().saveClock(w, h, time, args[0]);
        } catch (IOException e) {
            System.out.println("Error on image output: " + e.getMessage());
        }
    }
}

JClock.java

package clock;

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.time.LocalTime;
import java.time.temporal.ChronoField;
import javax.swing.JComponent;

public class JClock extends JComponent {
    private static final long serialVersionUID = 1L;

    private final CoolPaint paint;
    private final Object lock;
    private Thread updater;

    public JClock(CoolPaint paint) {
        this.paint = paint;
        this.lock = new Object();
    }

    private void runClock() {
        int lastTime = -1;
        try {
            while (isRunning()) {
                Thread.sleep(10);
                int t = time();
                if (t != lastTime) {
                    lastTime = t;
                    repaint();
                }
            }
        } catch (InterruptedException e) {
            // Do nothing, the thread will die naturally.
        }
    }

    private int time() {
        return LocalTime.now().get(ChronoField.SECOND_OF_DAY);
    }

    private boolean isRunning() {
        synchronized (lock) {
            return updater == Thread.currentThread();
        }
    }

    public void start() {
        synchronized (lock) {
            if (updater != null) return;
            updater = new Thread(this::runClock);
            updater.start();
        }
    }

    public void stop() {
        synchronized (lock) {
            updater = null;
        }
    }

    @Override
    public void paintComponent(Graphics g) {
        paint.paintClock(getWidth(), getHeight(), time(), (Graphics2D) g);
    }
}

ClockPaint.java

package clock;

import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.time.LocalTime;
import java.time.temporal.ChronoField;
import javax.imageio.ImageIO;

public interface ClockPaint {

    public void paintClock(int width, int height, int seconds, Graphics2D g2);

    public default void paintClock(int width, int height, LocalTime time, Graphics2D g2) {
        paintClock(width, height, time.get(ChronoField.SECOND_OF_DAY), g2);
    }

    public default void paintClock(int width, int height, Graphics2D g2) {
        paintClock(width, height, LocalTime.now(), g2);
    }

    public default void saveClock(int width, int height, String fileName) throws IOException {
        saveClock(width, height, LocalTime.now(), fileName);
    }

    public default void saveClock(int width, int height, LocalTime time, String fileName) throws IOException {
        saveClock(width, height, time.get(ChronoField.SECOND_OF_DAY), fileName);
    }

    public default void saveClock(int width, int height, int seconds, String fileName) throws IOException {
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
        paintClock(width, height, seconds, (Graphics2D) image.getGraphics());
        String f = fileName.endsWith(".png") ? fileName : fileName + ".png";
        ImageIO.write(image, "png", new File(f));
    }
}

CoolPaint.java

package clock;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.RadialGradientPaint;
import java.awt.RenderingHints;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;

public class CoolPaint implements ClockPaint {

    private static final int SECONDS_IN_MINUTE = 60;
    private static final int SECONDS_IN_HALF_HOUR = 30 * SECONDS_IN_MINUTE;
    private static final int SECONDS_IN_HOUR = 60 * SECONDS_IN_MINUTE;
    private static final int SECONDS_IN_12_HOURS = 12 * SECONDS_IN_HOUR;

    private static final int AM_0_00 = 0;
    private static final int AM_3_00 = 3 * SECONDS_IN_HOUR;
    private static final int AM_4_30 = 4 * SECONDS_IN_HOUR + SECONDS_IN_HALF_HOUR;
    private static final int AM_7_30 = 7 * SECONDS_IN_HOUR + SECONDS_IN_HALF_HOUR;
    private static final int AM_12_00 = 12 * SECONDS_IN_HOUR;
    private static final int PM_4_30 = 16 * SECONDS_IN_HOUR + SECONDS_IN_HALF_HOUR;
    private static final int PM_7_30 = 19 * SECONDS_IN_HOUR + SECONDS_IN_HALF_HOUR;
    private static final int PM_9_00 = 21 * SECONDS_IN_HOUR;
    private static final int PM_12_00 = 24 * SECONDS_IN_HOUR;

    private static final Color BLACK = new Color(0, 0, 0);
    private static final Color DARK_GRAY = new Color(32, 32, 32);
    private static final Color DARK_BLUE = new Color(0, 0, 128);
    private static final Color PURPLE = new Color(128, 0, 128);
    private static final Color CYAN = new Color(0, 255, 255);
    private static final Color YELLOW = new Color(225, 225, 0);
    private static final Color PALE_YELLOW = new Color(224, 224, 64);
    private static final Color RED = new Color(255, 0, 0);
    private static final Color GREEN = new Color(0, 255, 0);
    private static final Color LIGHT_BLUE = new Color(128, 128, 255);
    private static final Color SKY_CYAN = new Color(48, 224, 224);

    private static final Color[] COLOR_CYCLE = {
        DARK_GRAY, LIGHT_BLUE, RED, PALE_YELLOW, GREEN, SKY_CYAN, LIGHT_BLUE, DARK_GRAY
    };

    private static final int RADIAL_PERIOD_LENGTH = PM_12_00 / COLOR_CYCLE.length;
    private static final String[] ROMAN = {"", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX", "X", "XI", "XII"};

    private static class Painter {
        private final int width;
        private final int height;
        private final int seconds;
        private final int radius;
        private final Graphics2D g2;
        private final int cx;
        private final int cy;
        private final int secondColorIndex;
        private final int secondsInPeriod;
        private final Color pointersAndNumbersColor;

        public Painter(int width, int height, int seconds, Graphics2D g2) {
            this.width = width;
            this.height = height;
            this.seconds = seconds;
            this.radius = Math.min(width / 2, height / 2);
            this.cx = width / 2;
            this.cy = height / 2;
            this.g2 = g2;
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
            this.secondColorIndex = seconds / RADIAL_PERIOD_LENGTH;
            this.secondsInPeriod = seconds % RADIAL_PERIOD_LENGTH;

            int startIndex = (secondColorIndex + COLOR_CYCLE.length + 5) % COLOR_CYCLE.length;
            int endIndex = (secondColorIndex + COLOR_CYCLE.length + 6) % COLOR_CYCLE.length;
            Color color1 = COLOR_CYCLE[startIndex];
            Color color2 = COLOR_CYCLE[endIndex];
            this.pointersAndNumbersColor = mixColors(color1, color2, 0, RADIAL_PERIOD_LENGTH, secondsInPeriod);
        }

        private int mixColorComponent(int startComponent, int endComponent, double position) {
            int difference = endComponent - startComponent;
            return startComponent + (int) (difference * position);
        }

        private Color mixColors(Color startColor, Color endColor, int startTime, int endTime, int currentTime) {
            double normalized = (currentTime - startTime) / (double) (endTime - startTime);
            return new Color(
                    mixColorComponent(startColor.getRed(), endColor.getRed(), normalized),
                    mixColorComponent(startColor.getGreen(), endColor.getGreen(), normalized),
                    mixColorComponent(startColor.getBlue(), endColor.getBlue(), normalized));
        }

        private Color upperBackgroundColor() {
            if (seconds < 0) throw new IllegalArgumentException();
            if (seconds <= AM_3_00) return BLACK;
            if (seconds <= AM_4_30) return mixColors(BLACK, DARK_BLUE, AM_3_00, AM_4_30, seconds);
            if (seconds <= AM_7_30) return mixColors(DARK_BLUE, CYAN, AM_4_30, AM_7_30, seconds);
            if (seconds <= AM_12_00) return CYAN;
            if (seconds <= PM_4_30) return CYAN;
            if (seconds <= PM_7_30) return mixColors(CYAN, DARK_BLUE, PM_4_30, PM_7_30, seconds);
            if (seconds <= PM_9_00) return mixColors(DARK_BLUE, BLACK, PM_7_30, PM_9_00, seconds);
            if (seconds <= PM_12_00) return BLACK;
            throw new IllegalArgumentException();
        }

        private Color lowerBackgroundColor() {
            if (seconds < 0) throw new IllegalArgumentException();
            if (seconds <= AM_3_00) return mixColors(BLACK, DARK_BLUE, AM_0_00, AM_3_00, seconds);
            if (seconds <= AM_4_30) return mixColors(DARK_BLUE, PURPLE, AM_3_00, AM_4_30, seconds);
            if (seconds <= AM_7_30) return mixColors(PURPLE, YELLOW, AM_4_30, AM_7_30, seconds);
            if (seconds <= AM_12_00) return mixColors(YELLOW, CYAN, AM_7_30, AM_12_00, seconds);
            if (seconds <= PM_4_30) return mixColors(CYAN, YELLOW, AM_12_00, PM_4_30, seconds);
            if (seconds <= PM_7_30) return mixColors(YELLOW, PURPLE, PM_4_30, PM_7_30, seconds);
            if (seconds <= PM_9_00) return mixColors(PURPLE, DARK_BLUE, PM_7_30, PM_9_00, seconds);
            if (seconds <= PM_12_00) return mixColors(DARK_BLUE, BLACK, PM_9_00, PM_12_00, seconds);
            throw new IllegalArgumentException();
        }

        private void paintBackground() {
            Point2D p1 = new Point2D.Double(width / 2, 0);
            Point2D p2 = new Point2D.Double(width / 2, height);
            g2.setPaint(new GradientPaint(p1, upperBackgroundColor(), p2, lowerBackgroundColor()));
            g2.fillRect(0, 0, width, height);
        }

        private RadialGradientPaint colorOnCycle(Point2D center, float radius) {
            Color baseColor1 = COLOR_CYCLE[(secondColorIndex + COLOR_CYCLE.length - 1) % COLOR_CYCLE.length];
            Color baseColor2 = COLOR_CYCLE[secondColorIndex];
            Color baseColor3 = COLOR_CYCLE[(secondColorIndex + COLOR_CYCLE.length + 1) % COLOR_CYCLE.length];
            Color baseColor4 = COLOR_CYCLE[(secondColorIndex + COLOR_CYCLE.length + 2) % COLOR_CYCLE.length];

            Color start = mixColors(baseColor1, baseColor2, 0, RADIAL_PERIOD_LENGTH, secondsInPeriod);
            Color end = mixColors(baseColor3, baseColor4, 0, RADIAL_PERIOD_LENGTH, secondsInPeriod);
            float index2 = (RADIAL_PERIOD_LENGTH - secondsInPeriod) / (float) RADIAL_PERIOD_LENGTH / 2;
            float index3 = 0.5f + index2;
            float[] positions = index3 == 1.0 ? new float[] {0.0f, index2, 1.0f}
                    : new float[] {0.0f, index2, index3, 1.0f};
            Color[] colors = index3 == 1.0 ? new Color[] {start, baseColor2, end}
                    : new Color[] {start, baseColor2, baseColor3, end};

            return new RadialGradientPaint(center, radius, positions, colors);
        }

        private void paintClockArea() {
            Point2D center = new Point2D.Double(width / 2, height / 2);
            g2.setPaint(colorOnCycle(center, radius));
            g2.fillOval(width / 2 - radius, height / 2 - radius, radius * 2, radius * 2);
        }

        private double pointerRevolutionsToRadians(double angle) {
            return Math.toRadians((450 + angle * -360) % 360.0);
        }

        private void paintPointers() {
            double hAngle = pointerRevolutionsToRadians(seconds % SECONDS_IN_12_HOURS / (double) SECONDS_IN_12_HOURS);
            double mAngle = pointerRevolutionsToRadians(seconds % SECONDS_IN_HOUR / (double) SECONDS_IN_HOUR);
            double sAngle = pointerRevolutionsToRadians(seconds % SECONDS_IN_MINUTE / (double) SECONDS_IN_MINUTE);

            g2.setStroke(new BasicStroke(4.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
            g2.drawLine(cx, cy, (int) (cx + Math.cos(hAngle) * radius * 0.55), (int) (cy - Math.sin(hAngle) * radius * 0.55));
            g2.drawLine(cx, cy, (int) (cx + Math.cos(mAngle) * radius * 0.85), (int) (cy - Math.sin(mAngle) * radius * 0.85));
            g2.setStroke(new BasicStroke(1.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
            g2.drawLine(cx, cy, (int) (cx + Math.cos(sAngle) * radius * 0.85), (int) (cy - Math.sin(sAngle) * radius * 0.85));
        }

        private void paintNumbers() {
            Font originalFont = g2.getFont();
            double amplification = (int) Math.max(radius * 0.08, originalFont.getSize()) / (double) originalFont.getSize();
            AffineTransform at0 = AffineTransform.getScaleInstance(amplification, amplification);
            Font amplifiedFont = originalFont.deriveFont(at0);
            g2.setFont(amplifiedFont);
            FontMetrics fm = g2.getFontMetrics();

            for (int i = 1; i <= 12; i++) {
                double angle = pointerRevolutionsToRadians(i / 12.0);
                double textInclination = Math.toRadians(30 * i);
                AffineTransform at = AffineTransform.getRotateInstance(textInclination);
                at.scale(amplification, amplification);
                Font derivedFont = originalFont.deriveFont(at);
                g2.setFont(derivedFont);
                int pixelsOffset = fm.stringWidth(ROMAN[i]) / 2;
                int xPlot = (int) (cx + Math.cos(angle) * radius * 0.9 - pixelsOffset * Math.cos(textInclination));
                int yPlot = (int) (cy - Math.sin(angle) * radius * 0.9 - pixelsOffset * Math.sin(textInclination));
                g2.drawString(ROMAN[i], xPlot, yPlot);
            }
            g2.setFont(originalFont);
        }

        private void paintDots() {
            for (int i = 1; i < 60; i++) {
                if (i % 5 == 0) continue;
                double angle = pointerRevolutionsToRadians(i / 60.0);
                g2.fillRect((int) (cx + Math.cos(angle) * radius * 0.9) - 1, (int) (cy - Math.sin(angle) * radius * 0.9) - 1, 3, 3);
            }
        }

        public void paintClock() {
            paintBackground();
            paintClockArea();

            g2.setColor(pointersAndNumbersColor);
            g2.setPaint(pointersAndNumbersColor);
            paintNumbers();
            paintDots();
            paintPointers();
        }
    }

    @Override
    public void paintClock(int width, int height, int seconds, Graphics2D g2) {
        new Painter(width, height, seconds, g2).paintClock();
    }
}

Freepascal

Jam ini menampilkan waktu, tanggal dan fase bulan. Namun tidak seperti jam mekanis yang memiliki jendela kecil untuk menampilkan fase bulan, pada jam saya seluruh wajah digunakan untuk menampilkannya. Hari ini 14 Februari adalah bulan purnama. Anda dapat melihat output yang diharapkan selama beberapa hari ke depan di bawah ini.

uses graph,sysutils;

const hemisphere=-1; {-1=north,1=south}
MonthStr : array[1..12] of string [3] =
('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep ','Oct','Nov','Dec');

var yy,dd,mm,hh,mn,ss,ms: word;
var s: string; d2fullmoon,hour,min:real; sec:word;

var gd, gm, n : integer;
var right, left, centre: word;

begin

  gd := D4bit;
  gm := m640x480;
  initgraph(gd,gm,'');
  setbkcolor(blue);cleardevice; setbkcolor(black);
  setlinestyle(0,0,3);
  settextjustify(centertext,centertext);
  settextstyle(defaultfont,horizdir,2);

  while true do begin

    {output to console}

    DecodeDate(Date,YY,MM,DD);
    Writeln (Format ('Today is %d/%d/%d',[dd,mm,yy]));

    DecodeTime(Time,HH,Mn,SS,MS);
    Writeln (format('The time is %d:%d:%d.%d',[hh,mm,ss,ms]));

    d2fullmoon:=yy*(365*3+366)/4+mm*365/12+dd-2014*(365*3+366)/4-2*365/12-14;
    writeln ('days since full moon 14 feb 2014 ',d2fullmoon);

    if ss mod 15=0 then begin {Refresh display every 15 sec. Only the second hand is refreshed every sec.}

      {Draw circle and 180deg pie in yellow/black. Draw yellow or black ellipse on top. Add boxes for date}

      if sin(d2fullmoon/29.530588853*2*pi)*hemisphere>0 then right:=yellow else right:=black;
      left:=yellow-right;

      setcolor(right);setfillstyle(solidfill,right);
      fillellipse(320,240,200,200);

      setfillstyle(solidfill,left);setcolor(left);
      pieslice(320,240,90,270,200);

      if cos(d2fullmoon/29.530588853*2*pi)>0 then centre:=yellow else centre:=black;
      setcolor(centre); setfillstyle(solidfill,centre);
      fillellipse(320,240,abs(trunc(200*cos(d2fullmoon/29.530588853*2*pi))),200);

      setcolor (blue); setfillstyle(solidfill,blue);
      bar (270,135,370,165); bar (270,345,370,315);

      {fill in numbers}

      for n:=1 to 12 do begin
        setcolor(blue); setfillstyle(solidfill,blue);
        fillellipse(319+trunc(170*sin(n*pi/6)),240-trunc(170*cos(n*pi/6)),15,15);
        fillellipse(320+trunc(170*sin(n*pi/6)),240-trunc(170*cos(n*pi/6)),15,15);

        moveto(322+trunc(170*sin(n*pi/6)),240-trunc(170*cos(n*pi/6)));
        setcolor(white);
        str(n,s);outtext(s);
      end;

      {fill in date}

      str(yy,s);
      moveto(320,330);outtext(s);
      str(dd,s);
      moveto(320,150);outtext(s+monthstr[mm]);

      {draw hour and minute hands}

      hour:=hh+mn/60; min:=mn+ss/60;
      setcolor(cyan) ;setfillstyle(solidfill,cyan);
      moveto(320,240);
      linerel(trunc(140*sin(min*pi/30)),trunc(-140*cos(min*pi/30)));
      fillellipse(320+trunc(140*sin(min*pi/30)),240+trunc(-140*cos(min*pi/30)),7,7);
      moveto(320,240);
      linerel(trunc(100*sin(hour*pi/6)),trunc(-100*cos(hour*pi/6)));
      fillellipse(320+trunc(100*sin(hour*pi/6)),240+trunc(-100*cos(hour*pi/6)),7,7);
      fillellipse(320,240,10,10);

    end;

    {draw second hand in XOR mode, sleep for a second, then repeat to undraw}

    sec:=ss;
    setwritemode(xorput); setcolor(white);
    moveto(320+trunc(12*sin(sec*pi/30)),240+trunc(-12*cos(sec*pi/30)));
    linerel(trunc(150*sin(sec*pi/30)),trunc(-150*cos(sec*pi/30)));

    Sleep(1000);

    moveto(320+trunc(12*sin(sec*pi/30)),240+trunc(-12*cos(sec*pi/30)));
    linerel(trunc(150*sin(sec*pi/30)),trunc(-150*cos(sec*pi/30)));
    setwritemode(copyput);

  end;
  closegraph;
end.

Yang sederhana yang ditulis teman saya di TI 84 BASIC:

StoreGDB 0
CoordOff
GridOff
AxesOff
LabelOff
ExprOff
ClrDraw
62->Ymax
0->Ymin
94->Xmax
0->Xmin
Func
FnOff 0,1,2,3,4,5,6,7,8,9
PlotsOff 1,2,3
Full
Xmax/2->Xmax
Ymax/2->Ymax
~Xmax->Xmin
~Ymax->Ymin
Degree

15->H
18->M
20->S

Circle(36,~22,7)
Circle(0,0,30)
For(X,1,12)
Text(28-int(cos(X*30)*25),46+int(sin(30*X)*25),X)
End

{0,0,0}->|LANG

While getKey=0
getTime->|LTIME
getDate->|LDATE

Text(0,0,"12 HR")
Text(50,0,"24 HR")
If |LTIME(1)>12:Then
Text(6,7,(|LTIME(1)-12))
Else
Text(6,7,|LTIME(1))
End

If |LTIME(1)<=9
Then
Text(56,4,"O")
Text(56,8,|LTIME(1))
Else
Text(56,4,|LTIME(1))
End

Text(29,4,|LTIME(2))


If |LDATE(2)=1
Text(0,70,"JAN")

If |LDATE(2)=2
Text(0,70,"FEB")

If |LDATE(2)=3
Text(0,70,"MAR")

If |LDATE(2)=4
Text(0,70,"APR")

If |LDATE(2)=5
Text(0,70,"MAY")

If |LDATE(2)=6
Text(0,70,"JUN")

If |LDATE(2)=7
Text(0,70,"JUL")

If |LDATE(2)=8
Text(0,70,"AUG")

If |LDATE(2)=9
Text(0,70,"SEP")

If |LDATE(2)=10
Text(0,70,"OCT")

If |LDATE(2)=11
Text(0,70,"NOV")

If |LDATE(2)=12
Text(0,70,"DEC"
Text(2,81,",")
Text(0,85,|LDATE(3))
Text(8,75,|LDATE(1))


If |LTIME(1)>=12
Then
Text(50,80,"PM")
Else
Text(50,80,"AM")
End

If |LTIME(3)!=|LANG(3)/6
Line(0,0,sin(|LANG(3))*S,cos(|LANG(3))*S,0)

If |LTIME(2)!=|LANG(2)/6
Then
Line(0,0,sin(|LANG(2))*M,cos(|LANG(2))*M,0)
Line(0,0,sin(|LANG(1))*H,cos(|LANG(1))*H,0)
End

|LTIME(1)*30+|LTIME(2)/2->|LANG(1)
|LTIME(2)*6->|LANG(2)
|LTIME(3)*6->|LANG(3)

Line(0,0,sin(|LANG(1))*H,cos(|LANG(1))*H
Line(0,0,sin(|LANG(2))*M,cos(|LANG(2))*M
Line(0,0,sin(|LANG(3))*S,cos(|LANG(3))*S
End

Mathematica

Vanilla polos, jam yang berfungsi yang menampilkan waktu lokal:

Dynamic@Refresh[ClockGauge@AbsoluteTime[], UpdateInterval -> 1]

Opsi Standar

Pengukur jam tangan digambar

Ada alternatif untuk pengukur jam bawaan. Ini satu.

Sapu kontinyu telah diterapkan untuk jarum jam dan menit. Mereka memperbarui bersama dengan tangan kedua.

u[i_, k_] := {Sin[2 \[Pi] i/k], Cos[2 \[Pi] i/k]};
Dynamic[{f = Date[], Clock[{1, 1}, 1]}]
Graphics[Dynamic@{Circle[{0, 0}, 1.175], Circle[{0, 0}, 1.2],

   (* tick marks at minutes *)
   Table[Text[".", u[i, 60]], {i, 60}],  

   (* hour labels *)
   Table[Text[i, u[i, 12]], {i, 12}],  

   (* hour hand *)
   {Darker@Red, Arrowheads[.12], Thickness[.0175], Arrow[{{0, 0}, .6 u[f[[4]]+f[[5]]/60, 12]}]},

   (*minute hand *)
   {Blue, Arrowheads[.08], Thickness[.0085], Arrow[{{0, 0}, .85 u[f[[5]]+f[[6]]/60, 60]}]},

   (*second hand *)
   {Thickness[.005], Arrow[{{0, 0}, .9 u[f[[6]], 60]}]}}, 
   BaseStyle -> 25]

Catatan tambahan - aslinya ditulis untuk membantu anak-anak saya belajar mengetahui waktu. Halaman 1 menunjukkan waktu saat ini, halaman 2-4 adalah halaman untuk pelajar. Halaman untuk pelajar digunakan randuntuk membuat waktu acak, sehingga mereka berbeda setiap kali Anda memprosesnya. Gunakan Ghostscript untuk membuat versi PDF jika Anda ingin menunjukkan waktu saat ini. Berukuran untuk kertas A4.

%!PS-Adobe-3.0
%%Creator: Toby Thurston
%%Title: (Pages of pedagogical clocks)
%%CreationDate: (2014-02-14)
%%BoundingBox: 12 12 583 828 
%%Pages: 1
%%EndComments
<< /PageSize [595 842] >> setpagedevice
%%BeginSetup
/clock {
  /mins exch def
  /hour exch def
  /r exch def % radius
  /cr r 100 div def
  % draw the minute marks
  12 { .5 setlinewidth 4 { 6 rotate r 0 moveto r 20 div 0 rlineto stroke } repeat
        2 setlinewidth     6 rotate r 0 moveto r 20 div 0 rlineto stroke } repeat  
  % numbers           
  /fontsize r 0.14 mul def
  /Helvetica findfont fontsize scalefont setfont
  /s 2 string def 
  /rr r 0.9 mul def
  1 1 12 { /n exch def /theta 90 30 n mul sub def
  /st n s cvs def st stringwidth pop /dx exch 2 div neg def
  rr theta cos mul rr theta sin mul moveto dx fontsize 3 div neg rmoveto st show
  } for

  % draw hands (unless hour is negative)
  -1 hour lt {
      gsave % hour hand first
      90 60 hour mul mins add 2 div sub rotate
      newpath
      0 2 moveto
      15 cr mul  3 cr mul 33 cr mul   0 cr mul 50 cr mul  3 cr mul curveto 
      55 cr mul 15 cr mul 60 cr mul   0 cr mul 76 cr mul  0 cr mul curveto
      60 cr mul  0 cr mul 55 cr mul -15 cr mul 50 cr mul -3 cr mul curveto 
      33 cr mul  0 cr mul 15 cr mul  -3 cr mul  0 cr mul -2 cr mul curveto
      closepath 0 0 .677 setrgbcolor fill
      grestore
      gsave % minute hand on top
      90 6 mins mul sub rotate
      newpath
      0 2 moveto
      15 cr mul 3 cr mul 33 cr mul 0         50 cr mul  1 cr mul curveto 
      65 cr mul 3 cr mul 83 cr mul 0         97 cr mul  0        curveto
      83 cr mul 0        65 cr mul -3 cr mul 50 cr mul -1 cr mul curveto 
      33 cr mul 0        15 cr mul -3 cr mul 0         -2 cr mul curveto
      closepath .635 0 0 setrgbcolor fill
      grestore
  } if 

  % finally do central dot (to cover starts of hands) and outer band      
  .5 setlinewidth
  0 0 moveto 0 0 r 20 div   0 360 arc fill
             0 0 r 1.07 mul 0 360 arc stroke

} def
%%EndSetup
%%Page: 1 1 
%%BeginPageSetup
/pgsave save def
%%EndPageSetup
  297 480 translate
  120 

  (%Calendar%) /IODevice resourcestatus {
   pop pop (%Calendar%) currentdevparams
   dup /Running get { dup /Hour get exch /Minute get }{ 0 0 } ifelse } { -1 -1 } ifelse

  clock
pgsave restore
showpage
%%Page: 2 2
%%BeginPageSetup
/pgsave save def
%%EndPageSetup
  75 -55 translate
  4 {
     5 { 0 165 translate % a page of clocks for learners
         50 rand 12 mod rand 60 mod clock 
         % line underneath           
         gsave [1 3] 0 setdash 50 neg dup 1.8 mul moveto 50 2 mul 0 rlineto stroke grestore
     } repeat
     146 5 165 mul neg translate
  } repeat
pgsave restore
showpage
%%Page: 3 3
%%BeginPageSetup
/pgsave save def
%%EndPageSetup
  75 -55 translate
  4 {
     5 { 0 165 translate    % whole multiple of five minutes only
         50 rand 12 mod rand 12 mod 5 mul clock 
         gsave [1 3] 0 setdash 50 neg dup 1.8 mul moveto 50 2 mul 0 rlineto stroke grestore
     } repeat
     146 5 165 mul neg translate
  } repeat
pgsave restore
showpage
%%Page: 4 4
%%BeginPageSetup
/pgsave save def
%%EndPageSetup
  75 -55 translate
  4 {
     5 { 0 165 translate    % quarter hours only
         50 rand 12 mod rand 4 mod 15 mul clock 
         gsave [1 3] 0 setdash 50 neg dup 1.8 mul moveto 50 2 mul 0 rlineto stroke grestore
     } repeat
     146 5 165 mul neg translate
  } repeat
pgsave restore
showpage
%%EOF

Demo: http://jsfiddle.net/kelunik/Vuuq8/7/embedded/result/

HTML

<div id="clock">
    <div id="h"></div>
    <div id="m"></div>
    <div id="s"></div>
</div>

CSS

html, body {
    margin: 0;
    padding: 0;
    text-align: center;
}
#clock {
    width: 100vmin;
    height: 100vmin;
    border-radius: 50%;
    border: 1vmin solid #333;
    position: relative;
    box-shadow: 0 0 5vmin rgba(0, 0, 0, .3);
    box-sizing: border-box;
    margin: 0 auto;
    transform: scale(.8);
}
#h, #m, #s {
    top: 50vmin;
    left: 50vmin;
    position: absolute;
}
#h:before, #m:before, #s:before {
    content:"";
    position: absolute;
    left: 100%;
    height: 0;
    box-shadow: 0 0 2vmin rgba(0,0,0,.2);
    border-radius: 50%;
}
#h:before {
    width: 25vmin;
}
#m:before {
    width: 35vmin;
}
#s:before {
    width: 45vmin;
}
#h:before {
    background: black;
    height: 4vmin;
    transform: translateY(-2vmin);
}
#m:before {
    background: black;
    height: 2vmin;
    transform: translateY(-1vmin);
}
#s:before {
    background: red;
    height: 2vmin;
    transform: translateY(-1vmin);
}

Javascript

var h = document.getElementById('h');
var m = document.getElementById('m');
var s = document.getElementById('s');

setInterval(function () {
    refreshClock();
}, 1000);

function refreshClock() {
    var time = new Date;

    deg = time.getSeconds() * 6 - 90;
    s.style.webkitTransform = s.style.MozTransform = s.style.msTransform = s.style.transform = "rotate(" + deg + "deg)";

    deg = time.getMinutes() * 6 - 90;
    m.style.webkitTransform = m.style.MozTransform = m.style.msTransform = m.style.transform = "rotate(" + deg + "deg)";

    deg = time.getHours() % 12 * 30 - 90;
    h.style.webkitTransform = h.style.MozTransform = h.style.msTransform = h.style.transform = "rotate(" + deg + "deg)";
}

window.onload = function () {
    refreshClock();
};

Berikut ini salah satu yang sedang diproses:

int ax,ay,bx,by,cx,cy,dx,dy,last;
int q = 1;
float c = 0;
float h = 0;
float m = 0;

void setup() {
  size(displayWidth, displayHeight);
  background(0);
}

boolean sketchFullScreen() {
  return true;
}

void draw() {
  colorMode(HSB);
  fill(c,255,255,4);
  noStroke();
  rect(0,0,width,height);

  c+=0.4;
  if (c > 255) c = 0;

  colorMode(RGB);

  ax = int(random(displayWidth));
  ay = int(random(displayHeight));
  bx = ax + int(random(-50,50));
  by = ay + int(random(0,50));

  strokeWeight(1);

  if (random(0,1)>0.5) {
    fill(random(255),random(255),random(255));
    stroke(random(255),random(255),random(255));
  }
  else {
    noFill();
    stroke(random(255),random(255),random(255));
  }

  switch(int(random(6))) {
    case 0: // line
    line(ax,ay,bx,by);

    break;
    case 1: // bezier (arc)
    cx = int(random(ax-20,bx+20));
    cy = int(random(ay-20,by+20));
    dx = int(random(ax-20,bx+20));
    dy = int(random(ay-20,by+20));
    bezier(ax,ay,cx,cy,dx,dy,bx,by);

    break;
    case 2: // box
    quad(ax,ay,ax,by,bx,by,bx,ay);

    break;
    case 3: // ellipse
    ellipse(ax,ay,random(15,50),random(15,50));

    break;
    case 4: // triangle
    cx = int(random(ax-20,bx+20));
    cy = int(random(ay-20,by+20));
    dx = int(random(ax-20,bx+20));
    dy = int(random(ay-20,by+20));
    triangle(cx,cy,bx,by,dx,dy);

    break;
    case 5: // arc
    arc(ax,ay,random(15,50),random(15,50),random(2)*PI,random(2)*PI);

    break;  
  }

  float s = map(second(), 0, 60, 0, TWO_PI) - HALF_PI;
  float m = map(minute() + norm(second(), 0, 60), 0, 60, 0, TWO_PI) - HALF_PI; 
  float h = map(hour() + norm(minute(), 0, 60), 0, 24, 0, TWO_PI * 2) - HALF_PI;

  cx = width/2;
  cy = height/2;

  // Draw the hands of the clock
  stroke(255);
  strokeWeight(1);
  line(cx, cy, cx + cos(s) * 500, cy + sin(s) * 500);
  strokeWeight(2);
  line(cx, cy, cx + cos(m) * 400, cy + sin(m) * 400);
  strokeWeight(4);
  line(cx, cy, cx + cos(h) * 300, cy + sin(h) * 300);

}

void mouseMoved() {
  exit();
}
void keyPressed() {
  background(0);
}

HTML + CSS3 + JS

Saya telah menggunakan sebagian besar CSS untuk jam ini. Ada komponen JS yang memperbarui atribut pada div jam dengan waktu saat ini, tetapi di luar itu seluruh jam adalah CSS.

live demo di sini: http://jsbin.com/nuvag/3

kode sumber di sini: http://jsbin.com/nuvag/3/edit

GNUPLOT

unset clip points
set clip one
unset clip two
set bar 1.000000
unset border
set xdata
set ydata
set zdata
set x2data
set y2data
set timefmt x "%d/%m/%y,%H:%M"
set timefmt y "%d/%m/%y,%H:%M"
set timefmt z "%d/%m/%y,%H:%M"
set timefmt x2 "%d/%m/%y,%H:%M"
set timefmt y2 "%d/%m/%y,%H:%M"
set timefmt cb "%d/%m/%y,%H:%M"
set boxwidth
set style fill  empty border
set dummy t,y
set format x "% g"
set format y "% g"
set format x2 "% g"
set format y2 "% g"
set format z "% g"
set format cb "% g"
set angles radians
unset grid
set key title ""
unset key
unset label
unset arrow
unset style line
unset style arrow
set style histogram clustered gap 2 title  offset 0, 0, 0
unset logscale
set offsets 0, 0, 0, 0
set pointsize 1
set encoding default
unset polar
set parametric
unset decimalsign
set view 60, 30, 1, 1
set samples 100, 100
set isosamples 10, 10
set surface
unset contour
set clabel '%8.3g'
set mapping cartesian
set datafile separator whitespace
unset hidden3d
set cntrparam order 4
set cntrparam linear
set cntrparam levels auto 5
set cntrparam points 5
set size ratio 0 1,1
set origin 0,0
set style data points
set style function lines
set xzeroaxis linetype -2 linewidth 1.000
set yzeroaxis linetype -2 linewidth 1.000
set zzeroaxis linetype -2 linewidth 1.000
set x2zeroaxis linetype -2 linewidth 1.000
set y2zeroaxis linetype -2 linewidth 1.000
set ticslevel 0.5
set mxtics default
set mytics default
set mztics default
set mx2tics default
set my2tics default
set mcbtics default
set noxtics
set noytics
set noztics
set nox2tics
set noy2tics
set nocbtics
set title ""  offset character 0, 0, 0 font "" norotate
set timestamp bottom 
set timestamp ""  offset character 0, 0, 0 font "" norotate
set rrange [ * : * ] noreverse nowriteback  # (currently [0.000000:10.0000] )
set trange [ * : * ] noreverse nowriteback  # (currently [-5.00000:5.00000] )
set urange [ * : * ] noreverse nowriteback  # (currently [-5.00000:5.00000] )
set vrange [ * : * ] noreverse nowriteback  # (currently [-5.00000:5.00000] )
set xlabel ""  offset character 0, 0, 0 font "" textcolor lt -1 norotate
set x2label ""  offset character 0, 0, 0 font "" textcolor lt -1 norotate
set xrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
set x2range [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
set ylabel ""  offset character 0, 0, 0 font "" textcolor lt -1 rotate by 90
set y2label ""  offset character 0, 0, 0 font "" textcolor lt -1 rotate by 90
set yrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
set y2range [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
set zlabel ""  offset character 0, 0, 0 font "" textcolor lt -1 norotate
set zrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
set cblabel ""  offset character 0, 0, 0 font "" textcolor lt -1 norotate
set cbrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
set zero 1e-008
set lmargin -1
set bmargin -1
set rmargin -1
set tmargin -1
set locale "C"
set pm3d explicit at s
set pm3d scansautomatic
set pm3d interpolate 1,1 flush begin noftriangles nohidden3d corners2color mean
set palette positive nops_allcF maxcolors 0 gamma 1.5 color model RGB 
set palette rgbformulae 7, 5, 15
set colorbox default
set colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 bdefault
set loadpath 
set fontpath 
set fit noerrorvariables
set arrow from 0,0 to sin(`date +%M`*3.1416/30),cos(`date +%M`*3.1416/30) 
set arrow from 0,0 to sin((`date +%H`%12)*3.1416/6)/2,cos((`date +%H`%12)*3.1416/6)/2
plot sin(t),cos(t)
reread

Kode MATLAB sederhana, sebagian besar ditulis untuk menghargai panggilan 24 jam di tempat kerja.

sementara 1 runWatch () jeda (0,6); akhir

% 20160829 :: [email protected]
function runWatch()
cla;

dialHours  = 24;   % You can set it to 12 but why?
midnightUp = true; % defines position of midnight

col.hr = 'k'; 
col.mn = 'b'; 
col.sc = 'r'; 

logoStr = ['Perpetuum'];

xo = 0; yo = 0; 
RH  = 0.7;   RM  = 0.95; Rb = 0.5*(RH+RM);
RarrH = RH; RarrM = Rb; RarrS = RM;

fig_handle = findobj(allchild(0), 'flat', 'type', 'figure');

if isempty(fig_handle), set(gcf,'Position',[100 100 500 500]); end
hoursPhase = 3*pi/2; if midnightUp == true, hoursPhase = pi/2; end

hold on;
circle(xo, yo, RH,col.hr); 
circle(xo, yo, RM,col.mn);% ,'b');
circle(xo, yo, (RH+RM)/2,col.mn); %0.5*[1 1 1]);

text (xo - 2.5*RH/8+0.003, yo - RH/2-0.003, logoStr,'Color',0.5*[1 1 1],'FontAngle','italic');
text (xo - 2.5*RH/8,       yo - RH/2,       logoStr, 'FontAngle','italic')
axis equal; axis off;

% Hour dial
dh = pi/dialHours; h = 0:-dh:-pi+dh;
xH = RH*cos(2*h+hoursPhase); yH = RH*sin(2*h+hoursPhase);
xHb= Rb*cos(2*h+hoursPhase); yHb= Rb*sin(2*h+hoursPhase);
for n=1:length(xH)
    plot([xH(n),xHb(n)],[yH(n),yHb(n)],col.hr);
end
% Minute dial
dm = pi/60; m = 0:-dm:-pi+dm;
xM = RM*cos(2*m+pi/2); yM = RM*sin(2*m+pi/2);
xMb= Rb*cos(2*m+pi/2); yMb= Rb*sin(2*m+pi/2);
for n=1:length(xM)
    plot([xM(n),xMb(n)],[yM(n),yMb(n)],'Color',col.mn);
end

% Labels Hour
dhl = pi/dialHours; hl = 0:-dhl:-pi+dhl;  ratioH = -dialHours/180;
xHl= 0.5*(Rb+RH)*cos(2*hl+hoursPhase); 
yHl= 0.5*(Rb+RH)*sin(2*hl+hoursPhase);
for n=1:length(xHl)
    octagon (xHl(n), yHl(n), 0.3*(RH-Rb), 'w');
    text (xHl(n),yHl(n), num2str( rad2deg(hl(n)*ratioH) ),...
        'HorizontalAlignment','center','Rotation',rad2deg(2*hl(n)+hoursPhase-pi/2),...
        'FontWeight','b','FontSize',13,'Color',col.hr);    

end

% Labels Minute
dml = pi/12; ml=0:-dml:-pi+dml;  ratioM = -60/180; 
xMl= 0.5*(Rb+RM)*cos(2*ml+pi/2); yMl= 0.5*(Rb+RM)*sin(2*ml+pi/2);
for n=1:length(xMl)    
    octagon (xMl(n), yMl(n), 0.3*(RM-Rb), 'w');
    text (xMl(n),yMl(n), num2str( rad2deg(ml(n)*ratioM) ),...
        'HorizontalAlignment','center','Rotation',rad2deg(2*ml(n)), ...
        'FontWeight','b','Color',col.mn);
end

octagon (xo, yo-0.5*(RH+Rb), 0.04, col.hr);
octagon (xo, yo-0.5*(RH+Rb), 0.03, col.mn);

[now_year, now_month, now_day, ...
    now_hour, now_minute, now_second] = datevec(now);

% Arrows
K = -2*pi/dialHours; D = hoursPhase;
now_hour = now_hour + now_minute/60;
xarrowh = RarrH*cos(K*now_hour+D);
yarrowh = RarrH*sin(K*now_hour+D);
plot([0,xarrowh],[0,yarrowh],'Color',col.hr,'LineWidth',6); 
plot([0,xarrowh],[0,yarrowh],'Color',0.5*[1 1 1],'LineWidth',3); 
arrowhead (xarrowh,yarrowh,0.02,atan2(yarrowh,xarrowh),col.hr);

K = -2*pi/60; D = pi/2;
now_minute = now_minute + now_second/60;
xarrowm  = RarrH*cos(K*now_minute+D);
yarrowm  = RarrH*sin(K*now_minute+D);
xarrowml = RarrM*cos(K*now_minute+D);
yarrowml = RarrM*sin(K*now_minute+D);
plot([0,xarrowml],[0,yarrowml],'Color','k', 'LineWidth',4);
plot([0,xarrowml],[0,yarrowml],'Color',col.mn, 'LineWidth',2);
arrowhead (xarrowml,yarrowml,0.02,atan2(yarrowml,xarrowml),col.mn);

K = -2*pi/60; D = pi/2;
now_second = round(now_second);
xarrows = RarrH*cos(K*now_second+D);
yarrows = RarrH*sin(K*now_second+D);
xarrowsl = RarrS*cos(K*now_second+D);
yarrowsl = RarrS*sin(K*now_second+D);
plot([0,xarrowsl],[0,yarrowsl],'Color',col.sc,'LineWidth',1);
arrowhead (xarrowsl,yarrowsl,0.02,atan2(yarrows,xarrows)-pi,col.sc);

text(0.7,1,...
    [pad_with(floor(now_hour),2,'0'), ':', pad_with(floor(now_minute),2,'0'), ':', pad_with(now_second,2,'0')],...
    'FontSize',8,'FontWeight','n','BackgroundColor','w');

% Dial center
plot(xo, yo, 'ko','MarkerSize',10,'MarkerFaceColor','k');
plot(xo, yo, 'ko','MarkerSize',8,'MarkerFaceColor',0.5*[0 1 1]);

end

function [XX,YY] = circle(varargin)
%x and y are the coordinates of the center of the circle
%r is the radius of the circle
%0.01 is the angle step, bigger values will draw the circle faster but
%you might notice imperfections (not very smooth)

col = 'k';
x = varargin{1};
y = varargin{2};
r = varargin{3};
if length(varargin) > 3
    col = varargin{4};
end

ang=0:0.01:2*pi; 
xp=r*cos(ang);
yp=r*sin(ang);
XX = x+xp; YY = y+yp;
plot(XX,YY,'Color',col);
end

function octagon (xo, yo, R, col)

t = (1/16:1/8:1)'*2*pi;
x = R*cos(t);
y = R*sin(t);
fill(xo+x, yo+y,col,'EdgeColor','none')
end

% 20151001 :: [email protected]
% Use :: str = pad_with (num, L, pad)
% function creates a string of L length
% padded with leading 'pad' symbol
% e.g., num=23,    L=4, pad='.' --> '..23';
% e.g., num='23W', L=4, pad=' ' --> ' 23W';
% 
function str = pad_with (num, L, pad)

if ~ischar(num)
    num = num2str(num);
end
strL = length(num);
if L<strL, L = strL; end;
for n=1:L-strL, str(n) = pad; end;
c = 0;
for n=L-strL+1:L
    c = c+1; str(n) = num(c);
end
end

function [x, y] = arrowhead (xo, yo, height, alpha, col)

x(1) = xo + height*sin(alpha);
y(1) = yo - height*cos(alpha);

x(2) = xo - height*sin(alpha);
y(2) = yo + height*cos(alpha);

x(3) = xo + 2*height*cos(alpha);
y(3) = yo + 2*height*sin(alpha);

fill(x, y,col,'EdgeColor','none')
end

Python (dengan matplotlib)

Berikut adalah jam yang sangat mendasar yang berjalan di desktop. Ubah intervalbaris ke-2 ke terakhir ke 1untuk gerakan terus-menerus, bukan satu centang per detik.

import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as animation
import datetime

plt.rcParams['toolbar'] = 'None' 
fig = plt.figure(figsize=(4,4),facecolor='w')
ax = plt.subplot(111, polar=True)
plt.axes().get_yaxis().set_visible(False)

#12 labels, clockwise
marks = np.linspace(360./12,360,12, endpoint=True)
ax.set_thetagrids(marks,map(lambda m: int(m/30),marks),frac=.85,size='x-large')
ax.set_theta_direction(-1)
ax.set_theta_offset(np.pi/2)
ax.grid(None)

#hands
wids  = [.2,.03,.01]
lens  = [.75,.9,1]
clrs = plt.cm.winter(np.linspace(0, 1, 3))
factor = [12,60,60,1]

#convert time to radians
def timedata():
    x =  str(datetime.datetime.now().time())
    fig.canvas.set_window_title(x[:8])
    data = map(lambda n: float(n), x.split(':'))+[0]
    for i in range(3):
        data[i]=2*np.pi*(data[i]/factor[i]+data[i+1]/factor[i+1]/factor[i])
        data[i]-=(wids[i]/2)
    return data[:3]

#create hands
bars = ax.bar(timedata(), lens, width=wids, bottom=0.0, color=clrs, linewidth=0)
map(lambda b: b.set_alpha(0.5), bars)

#tick
def animate(i):
    map(lambda bt: bt[0].set_x(bt[1]), zip(bars,timedata()))
    return bars

ani = animation.FuncAnimation(fig, animate, np.arange(1, 200), interval=1000)
plt.show()