矩陣圖形表示 - java

Question

我有這個矩陣7x16與規範化的雙重在它，我想作出它的圖形表示。

0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00  
0.01 0.02 0.04 0.07 0.07 0.06 0.03 0.02 0.03 0.06 0.07 0.05 0.02 0.02 0.01 0.01  
0.01 0.06 0.09 0.16 0.23 0.17 0.09 0.07 0.33 0.41 0.43 0.13 0.05 0.02 0.04 0.01  
0.01 0.05 0.14 0.15 0.21 0.26 0.11 0.11 0.43 1.00 0.44 0.16 0.05 0.02 0.05 0.01  
0.01 0.05 0.08 0.15 0.16 0.13 0.09 0.08 0.35 0.33 0.32 0.10 0.04 0.00 0.04 0.00  
0.01 0.03 0.05 0.11 0.18 0.17 0.17 0.17 0.17 0.17 0.17 0.11 0.05 0.01 0.03 0.00  
0.01 0.01 0.03 0.06 0.06 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

類似的東西

但我不知道怎麼做的想法。如果有人可以幫忙。 Tahnks提前:)

Answer 1

我建議你閱讀如何去渲染，尤其是與JFrames和JPanels（我會假設是最簡單的方法去做你想做什麼）。我掀起了一些代碼，給你一個非常類似於你正在尋找的輸出，但灰度級。 http://prntscr.com/f9pdef是5個示例輸出。最上面的是您提供的原始數據，最下面的4是原始數據但是模糊不清，每個都使用不同的乘數來提高亮度。一旦你瞭解瞭如何使用JFrames和JPanels，修改我寫的內容以獲得你想要的內容將是微不足道的。我寫的示例代碼如下：

import javax.swing.*; 
import java.awt.*; 
import java.awt.geom.Rectangle2D; 

/** 
* Created by ----- on 5/19/2017. 
*/ 
public class Window extends JFrame{ 
    private final double[][] gradientOriginal = new double[][]{ 
      {0.00, 0.00, 0.00, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.00, 0.00, 0.00, 0.00}, 
      {0.01, 0.02, 0.04, 0.07, 0.07, 0.06, 0.03, 0.02, 0.03, 0.06, 0.07, 0.05, 0.02, 0.02, 0.01, 0.01}, 
      {0.01, 0.06, 0.09, 0.16 , 0.23 , 0.17 , 0.09 , 0.07 , 0.33 , 0.41 , 0.43 , 0.13 , 0.05 , 0.02 , 0.04 , 0.01}, 
      {0.01 , 0.05 , 0.14 , 0.15 , 0.21 , 0.26 , 0.11 , 0.11 , 0.43 , 1.00 , 0.44 , 0.16 , 0.05 , 0.02 , 0.05 , 0.01}, 
      {0.01 , 0.05 , 0.08 , 0.15 , 0.16 , 0.13 , 0.09 , 0.08 , 0.35 , 0.33 , 0.32 , 0.10 , 0.04 , 0.00 , 0.04 , 0.00}, 
      {0.01 ,0.03 , 0.05 , 0.11 ,0.18 , 0.17 , 0.17 , 0.17 , 0.17 , 0.17 , 0.17 , 0.11 , 0.05 , 0.01 ,0.03 , 0.00}, 
      {0.01 , 0.01 , 0.03 , 0.06 , 0.06 , 0.04 , 0.00 , 0.00 , 0.00 , 0.00 , 0.00 , 0.00 , 0.00 , 0.00 , 0.00 , 0.00}, 
    }; 

    private final int width = gradientOriginal[0].length; //width of our array 
    private final int height = gradientOriginal.length; //height of our array 
    private final int multiplier = 3; //multiplier to make the output a little brighter 
    private final double[][] gradient = new double[height][width]; //our averaged vector 
    private final int size = 32; //the size of one of our squares 
    private JPanel panel; 

    public Window(){ 
     init(); 
    } 

    private void init(){ 
     for(int y = 0; y < height; y++){ //loop through every position in the old array, average the surrounding squares, and put it in the new array 
      for(int x = 0; x < width; x++){ 
       int surrounding = 0; 
       double total = 0; 
       for(int yy = -1; yy <= 1; yy++){ 
        for(int xx = -1; xx <= 1; xx++){ 
         if(y + yy >= 0 && y + yy < height && x + xx >= 0 && x + xx < width){ 
          surrounding++; 
          total += gradientOriginal[y + yy][x + xx]; 
         } 
        } 
       } 
       gradient[y][x] += total/surrounding; 
       System.out.println(surrounding); 
      } 
     } 

     panel = new JPanel(){ 
      @Override 
      protected void paintComponent(Graphics g){ //this gets called when we call repaint() later 
       super.paintComponent(g); 
       Graphics2D g2d = (Graphics2D)g; 
       for(int y = 0; y < height; y++){ 
        for(int x = 0; x < width; x++){ 
         Rectangle2D rect = new Rectangle2D.Double(x * size, y * size, size, size); //create a rectangle to render 
         int shade = Math.min((int)(gradient[y][x] * 255 * multiplier), 255); //set the color of the rectangle 
         g2d.setColor(new Color(shade, shade, shade)); //also set color of rectangle 
         g2d.fill(rect); //fill in the rectangle 
        } 
       } 
      } 
     }; 
     panel.setPreferredSize(new Dimension(width * size, height * size)); //some initialization associated with the JPanel and JFrame 
     add(panel); 
     setResizable(false); 
     pack(); 
     setTitle("Gradient"); 
     setLocationRelativeTo(null); 

    } 

    public static void main(String[] args){ 
     Window myWindow = new Window(); //create a window and set it to be visible 
     myWindow.setVisible(true); 
    } 
} 

我會建議使用的框架和Swing中的Java教程 - https://docs.oracle.com/javase/tutorial/uiswing/components/frame.html，用的Javadoc的圖形和Graphics2D的結合。如果您還有其他問題，請隨時給我發消息。