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我正在尝试合并两个程序。一个用于播放介绍视频的视频播放器，另一个用于显示雷达（我在网上找到了编码）。我要做的是，先播放视频，这是对雷达的介绍，然后显示雷达。雷达显示器与 Arduino Mega 2560 相连，并有自己的编码。这是两个代码。

import processing.video.*;

String PATH = "D:\\FullZord.mp4";
Movie mov;

void setup()
  {
   size(1920, 1080);
   frameRate(30);
   mov = new Movie(this, PATH);
   mov.play();
   mov.speed(1);
   mov.volume(10);
  }

void movieEvent(Movie m) 
  {
   m.read();
  }

void draw() 
  {
   image(mov, 0, 0, width, height);
  }

和

import processing.serial.*; // imports library for serial communication
import java.awt.event.KeyEvent; // imports library for reading the data from the serial port
import java.io.IOException;
Serial myPort; // defines Object Serial
// defubes variables
String angle="";
String distance="";
String data="";
String noObject;
float pixsDistance;
int iAngle, iDistance;
int index1=0;
int index2=0;
PFont orcFont;

void setup() 
  {

    size (1920, 1080);
    smooth();
    myPort = new Serial(this,"COM4", 9600); // starts the serial communication
    myPort.bufferUntil('.'); // reads the data from the serial port up to the character '.'. So actually it reads this: angle,distance.
    orcFont = loadFont("OCRAExtended-30.vlw");
  }

void draw() 
  {

   fill(98,245,31);
   textFont(orcFont);
   // simulating motion blur and slow fade of the moving line
   noStroke();
   fill(0,4); 
   rect(0, 0, width, 1010); 

   fill(98,245,31); // green color
   // calls the functions for drawing the radar
   drawRadar(); 
   drawLine();
   drawObject();
   drawText(); 
  }

void serialEvent (Serial myPort) 
  { // starts reading data from the Serial Port
// reads the data from the Serial Port up to the character '.' and puts it into the String variable "data".
   data = myPort.readStringUntil('.');
   data = data.substring(0,data.length()-1);

   index1 = data.indexOf(","); // find the character ',' and puts it into 
   the 
   variable "index1"
   angle= data.substring(0, index1); // read the data from position "0" to position of the variable index1 or thats the value of the angle the Arduino Board sent into the Serial Port
   distance= data.substring(index1+1, data.length()); // read the data from position "index1" to the end of the data pr thats the value of the distance

// converts the String variables into Integer
   iAngle = int(angle);
   iDistance = int(distance);   
  }

void drawRadar() 
  {
   pushMatrix();
   translate(960,1000); // moves the starting coordinats to new location
   noFill();
   strokeWeight(2);
   stroke(98,245,31);
// draws the arc lines
   arc(0,0,1800,1800,PI,TWO_PI);
   arc(0,0,1400,1400,PI,TWO_PI);
   arc(0,0,1000,1000,PI,TWO_PI);
   arc(0,0,600,600,PI,TWO_PI);
// draws the angle lines
   line(-960,0,960,0);
   line(0,0,-960*cos(radians(30)),-960*sin(radians(30)));
   line(0,0,-960*cos(radians(60)),-960*sin(radians(60)));
   line(0,0,-960*cos(radians(90)),-960*sin(radians(90)));
   line(0,0,-960*cos(radians(120)),-960*sin(radians(120)));
   line(0,0,-960*cos(radians(150)),-960*sin(radians(150)));
   line(-960*cos(radians(30)),0,960,0);
   popMatrix();  
  } 

void drawObject() 
  {
   pushMatrix();
   translate(960,1000); // moves the starting coordinats to new location
   strokeWeight(9);
   stroke(255,10,10); // red color
   pixsDistance = iDistance*22.5; // covers the distance from the sensor from cm to pixels
// limiting the range to 40 cms
   if(iDistance<40){
// draws the object according to the angle and the distance
   line(pixsDistance*cos(radians(iAngle)),-pixsDistance*sin(radians(iAngle)),950*cos(radians(iAngle)),-950*sin(radians(iAn
 gle)));
   }
    popMatrix(); 
   }
 void drawLine() 
   {
    pushMatrix();
    strokeWeight(9);
    stroke(30,250,60);
    translate(960,1000); // moves the starting coordinats to new location
    line(0,0,950*cos(radians(iAngle)),-950*sin(radians(iAngle))); // draws the line according to the angle
    popMatrix();
   }

 void drawText() 
   { // draws the texts on the screen

     pushMatrix();
     if(iDistance>40) 
       {
        noObject = "Out of Range";
       }
     else 
         {
          noObject = "In Range";
         }
     fill(0,0,0);
     noStroke();
     rect(0, 1010, width, 1080);
     fill(98,245,31);
     textSize(25);
     text("10cm",1180,990);
     text("20cm",1380,990);
     text("30cm",1580,990);
     text("40cm",1780,990);
     textSize(40);
     text("Object: " + noObject, 240, 1050);
     text("Angle: " + iAngle +" °", 1050, 1050);
     text("Distance: ", 1380, 1050);

     if(iDistance<40) 
       {
        text("        " + iDistance +" cm", 1400, 1050);
       }
     textSize(25);
     fill(98,245,60);
     translate(961+960*cos(radians(30)),982-960*sin(radians(30)));
     rotate(-radians(-60));
     text("30°",0,0);
     resetMatrix();
     translate(954+960*cos(radians(60)),984-960*sin(radians(60)));
     rotate(-radians(-30));
     text("60°",0,0);
     resetMatrix();
     translate(945+960*cos(radians(90)),990-960*sin(radians(90)));
     rotate(radians(0));
     text("90°",0,0);
     resetMatrix();
     translate(935+960*cos(radians(120)),1003-960*sin(radians(120)));
     rotate(radians(-30));
     text("120°",0,0);
     resetMatrix();
     translate(940+960*cos(radians(150)),1018-960*sin(radians(150)));
     rotate(radians(-60));
     text("150°",0,0);
     popMatrix();  
    }
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2 回答 2

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您将不得不阅读视频库的参考资料。您正在寻找一种方法来检测电影何时播放或何时停止。它可能类似于类isPlaying()中的函数Movie。

当你拥有它时，你可以在draw()函数中调用它来检测电影是否仍在播放。如果有，就画出来。如果没有，则显示雷达。

但从小一点开始。首先，当电影播放完毕后，你能在控制台上打印一些东西吗？以此为基础。

另外，我强烈建议您不要只使用从互联网上复制粘贴的代码。那只会让你头疼不已。相反，请尝试准确理解代码在做什么。否则将无法调试或进行更改。您需要真正理解代码才能使用它。

于 2017-06-03T18:51:02.677 回答
0

解决了！我只是使用了延时功能。这个。

if (millis() > 1000) {
  // do something
   }
于 2017-06-03T19:22:30.330 回答