Java处理延时绘图不工作

Question

我正在使用 Java 和 Processing 制作延时可视化。这段代码来自 Eclipse，我用它来帮助自己，因为 Processing 缺少自动完成功能。问题在于 void PozeniPrezentacijo() 方法。我遇到的问题是，当我执行 risi()(risi 表示绘制)然后执行 TimeUnit.SECONDS.sleep(1) 十次时，它会卡住 10 秒，并且只显示最后一个 的输出code>draw() (risi()).我也尝试过 Thread.sleep() 但同样的事情发生了。它可能很难调试，因为您必须将处理库导入 Eclipse。 Link .

我的完整代码:

import g4p_controls.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import de.bezier.data.sql.*;
import java.awt.Font;
import java.util.concurrent.TimeUnit;
import processing.core.*;




public class MyProcessingSketch extends PApplet {





        // Create all the GUI controls. 
        // autogenerated do not edit
    /* =========================================================
     * ====                   WARNING                        ===
     * =========================================================
     * The code in this tab has been generated from the GUI form
     * designer and care should be taken when editing this file.
     * Only add/edit code inside the event handlers i.e. only
     * use lines between the matching comment tags. e.g.

     void myBtnEvents(GButton button) { //_CODE_:button1:12356:
         // It is safe to enter your event code here  
     } //_CODE_:button1:12356:

     * Do not rename this tab!
     * =========================================================
     */

        public void handleSliderEvents(GSlider slider, GEvent event) {
          println("integer value:" + slider1.getValueI() + " float value:" + slider1.getValueF());

          if(slider1.getValueI() == 1810){NastaviRadije(slovar1);
          risi();}

          else if(slider1.getValueI() == 1820){NastaviRadije(slovar2);
          risi();}

          else if(slider1.getValueI() == 1830){NastaviRadije(slovar3);
          risi();}

          else if(slider1.getValueI() == 1840){NastaviRadije(slovar4);
          risi();}

          else if(slider1.getValueI() == 1850){NastaviRadije(slovar5);
          risi();}

          else if(slider1.getValueI() == 1860){NastaviRadije(slovar6);
          risi();}

          else if(slider1.getValueI() == 1870){NastaviRadije(slovar7);
          risi();}

          else if(slider1.getValueI() == 1880){NastaviRadije(slovar8);
          risi();}

          else if(slider1.getValueI() == 1890){NastaviRadije(slovar9);
          risi();}

          else if(slider1.getValueI() == 1900){NastaviRadije(slovar2);
          risi();}

        }



    public void button1_click1(GButton source, GEvent event) { //_CODE_:button1:393804:
      NastaviBarve();
      risi();
    } //_CODE_:button1:393804:

    public void button2_click1(GButton source, GEvent event) throws Exception { //_CODE_:button1:393804:
      PozeniPrezentacijo();

    }



    // Create all the GUI controls. 
    // autogenerated do not edit
    public void createGUI(){
      G4P.messagesEnabled(false);
      G4P.setGlobalColorScheme(GCScheme.BLUE_SCHEME);
      G4P.setCursor(ARROW);
      if(frame != null)
        frame.setTitle("Sketch Window");
      sketchPad1 = new GSketchPad(this, 18, 13, 762, 459);
      sketchPad1.setOpaque(true);
      label1 = new GLabel(this, 220, 270, 240, 50);
      label1.setText("Drzava1");
      label1.setOpaque(false);
      label2 = new GLabel(this, 620, 300, 240, 50);
      label2.setText("Drzava2");
      label2.setOpaque(false);
      label3 = new GLabel(this, 790, 110, 240, 50);
      label3.setText("Drzava3");
      label3.setOpaque(false);
      label4 = new GLabel(this, 860, 300, 240, 50);
      label4.setText("Drzava4");
      label4.setOpaque(false);
      label5 = new GLabel(this, 1030, 200, 240, 50);
      label5.setText("Drzava5");
      label5.setOpaque(false);
      label6 = new GLabel(this, 220, 580, 240, 50);
      label6.setText("Drzava6");
      label6.setOpaque(false);
      label7 = new GLabel(this, 470, 550, 240, 50);
      label7.setText("Drzava7");
      label7.setOpaque(false);
      label8 = new GLabel(this, 590, 500, 240, 50);
      label8.setText("Drzava8");
      label8.setOpaque(false);
      label9 = new GLabel(this, 710, 550, 240, 50);
      label9.setText("Drzava9");
      label9.setOpaque(false);
      label10 = new GLabel(this, 830, 500, 240, 50);
      label10.setText("Drzava10");
      label10.setOpaque(false);
      //label11 = new GLabel(this, 430, 20, 300, 30);
      //label11.setText("Vizualizacija prikazuje število avtoric iz posamezne države po desetletjih");
      //label11.setOpaque(false);
      slider1 = new GSlider(this, 123, 620, 983, 61, (float) 10.0);
      slider1.setShowValue(true);
      slider1.setShowLimits(true);
      slider1.setLimits(1810, 1810, 1900);
      slider1.setNbrTicks(10);
      slider1.setStickToTicks(true);
      slider1.setShowTicks(true);
      slider1.setNumberFormat(G4P.DECIMAL, 2);
      slider1.setOpaque(false);
      slider1.addEventHandler(this, "handleSliderEvents");
      button1 = new GButton(this, 1150, 600, 80, 30);
      button1.setText("Spremeni barve");
      button1.addEventHandler(this, "button1_click1");
      button2 = new GButton(this, 1150, 650, 120, 30);
      button2.setText("Poženi predstavitev");
      button2.addEventHandler(this, "button2_click1");

    }

    // Variable declarations 
    // autogenerated do not edit
    GSketchPad sketchPad1; 
    GLabel label1; 
    GLabel label2; 
    GLabel label3; 
    GLabel label4; 
    GLabel label5; 
    GLabel label6; 
    GLabel label7; 
    GLabel label8; 
    GLabel label9; 
    GLabel label10; 
    GLabel label11; 
    GLabel label12; 
    GSlider slider1; 
    GButton button1; 
    GButton button2; 



    MySQL msql;
    HashMap<String, Integer> slovar1 = new HashMap<String, Integer>();
    HashMap<String, Integer> slovar2 = new HashMap<String, Integer>();
    HashMap<String, Integer> slovar3 = new HashMap<String, Integer>();
    HashMap<String, Integer> slovar4 = new HashMap<String, Integer>();
    HashMap<String, Integer> slovar5 = new HashMap<String, Integer>();
    HashMap<String, Integer> slovar6 = new HashMap<String, Integer>();
    HashMap<String, Integer> slovar7 = new HashMap<String, Integer>();
    HashMap<String, Integer> slovar8 = new HashMap<String, Integer>();
    HashMap<String, Integer> slovar9 = new HashMap<String, Integer>();
    HashMap<String, Integer> slovar10 = new HashMap<String, Integer>();


    Integer radij1, radij2, radij3, radij4, radij5, radij6, radij7, radij8, radij9, radij10;
    String drzava1, drzava2,drzava3, drzava4, drzava5, drzava6, drzava7, drzava8, drzava9, drzava10;
    PFont f;

    //color c1,c2,c3,c4,c5,c6,c7,c8,c9,c10;
    //colorMode(RGB,255);
    int c1 = color(255,0,0);
        int c2 = color(255,128,0);
        int c3 = color(255,255,0);
        int c4 = color(128,255,0);
        int c5 = color(0,255,0);
        int c6 = color(0,255,128);
        int c7 = color(0,255,255);
        int c8 = color(0,128,255);
        int c9 = color(0,0,255);
        int c10 = color(127,0,255);

    public void setup() {
        size(1280, 720);
        f = createFont("Arial",16,true);


        createGUI();

        String user = "studentgo";
        String pass = "yP6YZcbSacFcCpuq";

            String database = "studentgo";
            // imena polj v bazi: ime, naslov, leto_izdaje, drzava_izdaje, receptor, spol, tip, leto_recepcije, drzava_recepcije
            msql = new MySQL( this, "delphi.fri.uni-lj.si:3306", database, user, pass );




            if (msql.connect()) {//Drzave za obdobje 1800 do 1900;

                msql.query("SELECT drzava_izdaje, count(drzava_izdaje) s FROM avtorice where leto_izdaje>1800 AND leto_izdaje<1810 group by drzava_izdaje");
                while (msql.next()) {

                    String stevilo = msql.getString("s");
                    int pravoSt = Integer.parseInt(stevilo);
                    String beseda = msql.getString("drzava_izdaje");
                    if (beseda.contains("unknown / not relevant")) {
                        continue;
                    } else {
                            slovar1.put(beseda, pravoSt);

                    }
                    //print(beseda +"," + pravoSt +"\n");

                  }

                  msql.query("SELECT drzava_izdaje, count(drzava_izdaje) s FROM avtorice where leto_izdaje>1810 AND leto_izdaje<1820 group by drzava_izdaje");
                while (msql.next()) {

                    String stevilo = msql.getString("s");
                    int pravoSt = Integer.parseInt(stevilo);
                    String beseda = msql.getString("drzava_izdaje");
                    if (beseda.contains("unknown / not relevant")) {
                        continue;
                    } else {

                            slovar2.put(beseda, pravoSt);
                    }
                    //print(beseda +"," + pravoSt +"\n");

                  }

                  msql.query("SELECT drzava_izdaje, count(drzava_izdaje) s FROM avtorice where leto_izdaje>1820 AND leto_izdaje<1830 group by drzava_izdaje");
                while (msql.next()) {

                    String stevilo = msql.getString("s");
                    int pravoSt = Integer.parseInt(stevilo);
                    String beseda = msql.getString("drzava_izdaje");
                    if (beseda.contains("unknown / not relevant")) {
                        continue;
                    } else {

                            slovar3.put(beseda, pravoSt);

                    }
                    //print(beseda +"," + pravoSt +"\n");

                  }

                  msql.query("SELECT drzava_izdaje, count(drzava_izdaje) s FROM avtorice where leto_izdaje>1830 AND leto_izdaje<1840 group by drzava_izdaje");
                while (msql.next()) {

                    String stevilo = msql.getString("s");
                    int pravoSt = Integer.parseInt(stevilo);
                    String beseda = msql.getString("drzava_izdaje");
                    if (beseda.contains("unknown / not relevant")) {
                        continue;
                    } else {

                            slovar4.put(beseda, pravoSt);

                    }
                    //print(beseda +"," + pravoSt +"\n");

                  }

                  msql.query("SELECT drzava_izdaje, count(drzava_izdaje) s FROM avtorice where leto_izdaje>1840 AND leto_izdaje<1850 group by drzava_izdaje");
                while (msql.next()) {

                    String stevilo = msql.getString("s");
                    int pravoSt = Integer.parseInt(stevilo);
                    String beseda = msql.getString("drzava_izdaje");
                    if (beseda.contains("unknown / not relevant")) {
                        continue;
                    } else {

                            slovar5.put(beseda, pravoSt);

                    }
                    //print(beseda +"," + pravoSt +"\n");

                  }

                  msql.query("SELECT drzava_izdaje, count(drzava_izdaje) s FROM avtorice where leto_izdaje>1850 AND leto_izdaje<1860 group by drzava_izdaje");
                while (msql.next()) {

                    String stevilo = msql.getString("s");
                    int pravoSt = Integer.parseInt(stevilo);
                    String beseda = msql.getString("drzava_izdaje");
                    if (beseda.contains("unknown / not relevant")) {
                        continue;
                    } else {

                            slovar6.put(beseda, pravoSt);

                    }
                    //print(beseda +"," + pravoSt +"\n");

                  }

                  msql.query("SELECT drzava_izdaje, count(drzava_izdaje) s FROM avtorice where leto_izdaje>1860 AND leto_izdaje<1870 group by drzava_izdaje");
                while (msql.next()) {

                    String stevilo = msql.getString("s");
                    int pravoSt = Integer.parseInt(stevilo);
                    String beseda = msql.getString("drzava_izdaje");
                    if (beseda.contains("unknown / not relevant")) {
                        continue;
                    } else {

                            slovar7.put(beseda, pravoSt);

                    }
                    //print(beseda +"," + pravoSt +"\n");

                  }

                  msql.query("SELECT drzava_izdaje, count(drzava_izdaje) s FROM avtorice where leto_izdaje>1870 AND leto_izdaje<1880 group by drzava_izdaje");
                while (msql.next()) {

                    String stevilo = msql.getString("s");
                    int pravoSt = Integer.parseInt(stevilo);
                    String beseda = msql.getString("drzava_izdaje");
                    if (beseda.contains("unknown / not relevant")) {
                        continue;
                    } else {

                            slovar8.put(beseda, pravoSt);

                    }
                    //print(beseda +"," + pravoSt +"\n");

                  }

                  msql.query("SELECT drzava_izdaje, count(drzava_izdaje) s FROM avtorice where leto_izdaje>1880 AND leto_izdaje<1890 group by drzava_izdaje");
                while (msql.next()) {

                    String stevilo = msql.getString("s");
                    int pravoSt = Integer.parseInt(stevilo);
                    String beseda = msql.getString("drzava_izdaje");
                    if (beseda.contains("unknown / not relevant")) {
                        continue;
                    } else {

                            slovar9.put(beseda, pravoSt);

                    }
                    //print(beseda +"," + pravoSt +"\n");

                  }

                msql.query("SELECT drzava_izdaje, count(drzava_izdaje) s FROM avtorice where leto_izdaje>1890 AND leto_izdaje<1900 group by drzava_izdaje");
                while (msql.next()) {

                    String stevilo = msql.getString("s");
                    int pravoSt = Integer.parseInt(stevilo);
                    String beseda = msql.getString("drzava_izdaje");
                    if (beseda.contains("unknown / not relevant")) {
                        continue;
                    } else {

                            slovar10.put(beseda, pravoSt);

                    }
                    //print(beseda +"," + pravoSt +"\n");

                  }



              }
            else {
                // connection failed !
            }
      NastaviRadije(slovar1);
      risi();

    }//konec setup



    public void draw() {
      //background(255, 255, 255);

    }

    void NastaviBarve(){
        c1 = color(random(255), random(255), random(255));
        c2 = color(random(255), random(255), random(255));
        c3 = color(random(255), random(255), random(255));
        c4 = color(random(255), random(255), random(255));
        c5 = color(random(255), random(255), random(255));
        c6 = color(random(255), random(255), random(255));
        c7 = color(random(255), random(255), random(255));
        c8 = color(random(255), random(255), random(255));
        c9 = color(random(255), random(255), random(255));
        c10 = color(random(255), random(255), random(255));

    }

    void NastaviRadije(HashMap slovar){
      ArrayList<Integer> stevila = new ArrayList<Integer>(slovar.values());
      Collections.sort(stevila);
      Collections.reverse(stevila);
      radij1 = stevila.get(0);
      radij2 = stevila.get(1);
      radij3 = stevila.get(2);
      radij4 = stevila.get(3);
      radij5 = stevila.get(4);
      radij6 = stevila.get(5);
      radij7 = stevila.get(6);
      radij8 = stevila.get(7);
      radij9 = stevila.get(8);
      radij10 = stevila.get(9);
      NastaviDrzave(slovar);

      }

    void NastaviDrzave(HashMap slovar){
      ArrayList<String> drzave = new ArrayList<String>(slovar.keySet());

      for( String drzava : drzave){
        Integer radij = (Integer) slovar.get(drzava);
        if(radij == radij1) {drzava1 = drzava;}
        else if(radij == radij2) {drzava2 = drzava;}
        else if(radij == radij3) {drzava3 = drzava;}
        else if(radij == radij4) {drzava4 = drzava;}
        else if(radij == radij5) {drzava5 = drzava;}
        else if(radij == radij6) {drzava6 = drzava;}
        else if(radij == radij7) {drzava7 = drzava;}
        else if(radij == radij8) {drzava8 = drzava;}
        else if(radij == radij9) {drzava9 = drzava;}
        else if(radij == radij10) {drzava10 = drzava;}
        else continue;
      }
    }



    void risi(){

        background(255, 255, 255);
        fill(254,0,0);
        textFont(f,30);        
        textAlign(LEFT); 
        text("Vizualizacija prikazuje število avtoric iz posamezne države po desetletjih",200,30);
        fill(0,0,0);
        textFont(f,20);        
        textAlign(LEFT); 
        text("Premakni drsnik za začetek.",950,80);
        textFont(f,20);        
        textAlign(LEFT); 
        text("Pritisni gumb za spremembo barv.",950,100);
        ellipseMode(CENTER);
        fill(c1);
        ellipse(220,270,radij1,radij1);
        label1.setText(drzava1+" ("+radij1.toString()+")");
        label1.setFont(new Font("Monospaced", Font.PLAIN, 20));
        label1.setTextBold();
        fill(c2);
        ellipse(620,300,radij2,radij2);
        label2.setText(drzava2+" ("+radij2.toString()+")");
        label2.setFont(new Font("Monospaced", Font.PLAIN, 20));
        label2.setTextBold();
        fill(c3);
        ellipse(790,110,radij3,radij3);
        label3.setText(drzava3+" ("+radij3.toString()+")");
        label3.setFont(new Font("Monospaced", Font.PLAIN, 20));
        label3.setTextBold();
        fill(c4);
        ellipse(860,300,radij4,radij4);
        label4.setText(drzava4+" ("+radij4.toString()+")");
        label4.setFont(new Font("Monospaced", Font.PLAIN, 20));
        label4.setTextBold();
        fill(c5);
        ellipse(1030,200,radij5,radij5);
        label5.setText(drzava5+" ("+radij5.toString()+")");
        label5.setFont(new Font("Monospaced", Font.PLAIN, 20));
        label5.setTextBold();
        fill(c6);
        ellipse(220,580,radij6,radij6);
        label6.setText(drzava6+" ("+radij6.toString()+")");
        label6.setFont(new Font("Monospaced", Font.PLAIN, 20));
        label6.setTextBold();
        fill(c7);
        ellipse(470,550,radij7,radij7);
        label7.setText(drzava7+" ("+radij7.toString()+")");
        label7.setFont(new Font("Monospaced", Font.PLAIN, 20));
        label7.setTextBold();
        fill(c8);
        ellipse(590,500,radij8,radij8);
        label8.setText(drzava8+" ("+radij8.toString()+")");
        label8.setFont(new Font("Monospaced", Font.PLAIN, 20));
        label8.setTextBold();
        fill(c9);
        ellipse(710,550,radij9,radij9);
        label9.setText(drzava9+" ("+radij9.toString()+")");
        label9.setFont(new Font("Monospaced", Font.PLAIN, 20));
        label9.setTextBold();
        fill(c10);
        ellipse(830,500,radij10,radij10);
        label10.setText(drzava10+" ("+radij10.toString()+")");
        label10.setFont(new Font("Monospaced", Font.PLAIN, 20));
        label10.setTextBold();

    }

    void PozeniPrezentacijo() throws Exception{
        slider1.setValue(1810);
        risi();
          TimeUnit.SECONDS.sleep(1);
        slider1.setValue(1820);
        risi();
  TimeUnit.SECONDS.sleep(1);
        slider1.setValue(1830);
        risi();
  TimeUnit.SECONDS.sleep(1);
        slider1.setValue(1840);
        risi();
  TimeUnit.SECONDS.sleep(1);
        slider1.setValue(1850);
        risi();
  TimeUnit.SECONDS.sleep(1);
        slider1.setValue(1860);
        risi();
  TimeUnit.SECONDS.sleep(1);
        slider1.setValue(1870);
        risi();
  TimeUnit.SECONDS.sleep(1);
        slider1.setValue(1880);
        risi();
  TimeUnit.SECONDS.sleep(1);
        slider1.setValue(1890);
        risi();
  TimeUnit.SECONDS.sleep(1);
        slider1.setValue(1900);
        risi();
  TimeUnit.SECONDS.sleep(1);

      }

}

Answer 1

好吧，如果你要使用 Processing 及其库，你必须遵守它的规则。具体来说，G4P 的 UI 取决于 void draw() ，这意味着你不能调用 noLoop 并随意刷新屏幕......而且似乎 Processing 的 redraw() 实际上并没有直接调用 draw() ，而只是设置了一个标志，表明窗口需要重新绘制。这里的一般想法是您必须围绕 Processing 的 draw() 循环进行设计...所以我建议这样:

不是实际调用捕获方法而是触发一系列事件，这些事件将在每个 draw() 中根据顺序显示不同的信息。因此:

触发事件:

public void button2_click1(GButton source, GEvent event) throws Exception { //_CODE_:button1:393804:
  val = 1810;
}

绘制方法:

public void draw() {
  PozeniPrezentacijo();
}

和实际方法:

int val = 1901;
void PozeniPrezentacijo() {
  if (val < 1901 && frameCount%30 == 0) {
    slider1.setValue(val);
    risi();
    val+=10;
  }
}

frameCount%30 = 0 允许你每 30 帧只运行一次