回答編集履歴
8
継承忘れも修正
answer
CHANGED
@@ -7,7 +7,7 @@
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7
7
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pxはx一当たりの横幅
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8
8
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pyはy一当たりの縦幅
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9
9
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```java
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10
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-
public class GraphPanel{
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10
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+
public class GraphPanel extends JPanel{
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11
11
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final Graph gr;
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12
12
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GraphPanel(Graph gr){
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13
13
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this.gr=gr;
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7
いまさらdrawをdrowと書いてたのを修正
answer
CHANGED
@@ -16,7 +16,7 @@
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16
16
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@Override
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17
17
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public void paintComponent(Graphics g) {
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18
18
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Graphics2D g2D = (Graphics2D) g;
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19
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-
BufferedImage im=gr.
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19
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+
BufferedImage im=gr.draw();
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20
20
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g2D.drawImage(im, 0,0, this);
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21
21
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}
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22
22
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}
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@@ -79,7 +79,7 @@
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79
79
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originLineColor=c;
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80
80
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change=true;
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81
81
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}
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82
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-
public BufferedImage
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82
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+
public BufferedImage draw(){
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83
83
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84
84
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if(change){
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85
85
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Graphics2D g=(Graphics2D) image.getGraphics();
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6
抜けに関する修正
answer
CHANGED
@@ -7,6 +7,7 @@
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7
7
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pxはx一当たりの横幅
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8
8
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pyはy一当たりの縦幅
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9
9
|
```java
|
10
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+
public class GraphPanel{
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10
11
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final Graph gr;
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11
12
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GraphPanel(Graph gr){
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12
13
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this.gr=gr;
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5
大規模に変更
answer
CHANGED
@@ -7,66 +7,102 @@
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7
7
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pxはx一当たりの横幅
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8
8
|
pyはy一当たりの縦幅
|
9
9
|
```java
|
10
|
-
public class GraphPanel extends JPanel{
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11
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-
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10
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+
final Graph gr;
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12
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-
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11
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+
GraphPanel(Graph gr){
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13
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-
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12
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+
this.gr=gr;
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13
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+
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14
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-
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14
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+
}
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15
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+
@Override
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15
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-
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16
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+
public void paintComponent(Graphics g) {
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17
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+
Graphics2D g2D = (Graphics2D) g;
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18
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+
BufferedImage im=gr.drow();
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16
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-
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19
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+
g2D.drawImage(im, 0,0, this);
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17
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-
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20
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+
}
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18
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-
public removepoint(int x){
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19
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-
gr.removepoint(x);
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20
21
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}
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21
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-
@Override
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22
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-
public void paintComponent(Graphics g) {
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23
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-
Graphics2D g2D = (Graphics2D) g;
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24
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-
BufferedImage im=gr.drow(Color.RED);
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25
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-
g2D.drawImage(im, 0,0, this);
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26
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-
}
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27
22
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}
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28
23
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```
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29
24
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せっかく作っても使わなきゃ意味がないので変更
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30
25
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```java
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26
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+
public class Main {
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27
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+
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28
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+
public static void main(String[] args) throws IOException {
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29
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+
final int SIZE=500;
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31
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-
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30
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+
Graph g=new Graph(SIZE,SIZE,5,5,0,0);
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32
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-
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31
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+
g.setpoint(0,0);
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32
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+
g.setpoint(52,60);
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33
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+
g.setpoint(32,95);
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33
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-
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34
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+
g.setpoint(25, 40);
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35
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+
g.setLineColor(Color.RED);
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36
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+
g.setOriginLineColor(Color.GREEN);
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37
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+
JFrame f=new JFrame();
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38
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+
f.setSize(1200, 700);
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39
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+
f.setVisible(true);
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40
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+
GraphPanel p=new GraphPanel(g);//panelllにあたるPanel
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41
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+
f.add(p);
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42
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+
g.removepoint(32);
|
43
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+
}
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44
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+
|
45
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+
}
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34
46
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```
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35
47
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36
48
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こっちはとりあえずのグラフ生成クラス(いろいろひどいのでライブラリ使ったほうが良いかと)
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37
49
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```java
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38
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-
public class Graph{
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50
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+
public class Graph {
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51
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+
private boolean change;
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39
52
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private BufferedImage image;
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40
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-
private int w,h;
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41
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-
private
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53
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+
private Color lineColor,originLineColor;
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42
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-
private Integer
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54
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+
private Integer h,w,onex,oney,originpx,originpy;
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43
55
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Map<Integer,Integer> p=new TreeMap<>();
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44
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-
public Graph(
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56
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+
public Graph(int width,int height,int onex,int oney,int originpx,int originpy){
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45
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-
this.image=
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57
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+
this.image=new BufferedImage(width,height,BufferedImage.TYPE_INT_BGR);
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46
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-
w=image.getWidth();
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47
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-
h=image.getHeight();
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58
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+
this.h=image.getHeight();
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59
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+
this.w=image.getWidth();
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60
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+
this.originpx=originpx;
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61
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+
this.originpy=h-originpy;
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48
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-
this.
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62
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+
this.onex=onex;
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49
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-
this.
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63
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+
this.oney=oney;
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50
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-
g=(Graphics2D) image.getGraphics();
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51
64
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}
|
52
65
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public void setpoint(int x, int y){
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53
66
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p.put(x,y);
|
67
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+
change=true;
|
54
68
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}
|
55
69
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public void removepoint(int x){
|
56
70
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p.remove(x);
|
71
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+
change=true;
|
57
72
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}
|
73
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+
public void setLineColor(Color c){
|
74
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+
lineColor=c;
|
75
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+
change=true;
|
76
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+
}
|
77
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+
public void setOriginLineColor(Color c){
|
78
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+
originLineColor=c;
|
79
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+
change=true;
|
80
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+
}
|
58
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-
public BufferedImage drow(
|
81
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+
public BufferedImage drow(){
|
82
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+
|
83
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+
if(change){
|
84
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+
Graphics2D g=(Graphics2D) image.getGraphics();
|
85
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+
g.clearRect(0, 0, w, h);
|
59
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-
|
86
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+
int x1=0,y1=0;
|
60
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-
|
87
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+
boolean f=false;
|
88
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+
if(originLineColor!=null){
|
61
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-
|
89
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+
g.setColor(originLineColor);
|
62
|
-
for(Map.Entry<Integer,Integer> e : p.entrySet()) {
|
63
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-
if(f){
|
64
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-
g.drawLine(
|
90
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+
g.drawLine(0,originpy, w, originpy);
|
65
|
-
}else{
|
66
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-
|
91
|
+
g.drawLine(originpx, 0, originpx,h);
|
67
92
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}
|
93
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+
if(lineColor!=null){
|
94
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+
g.setColor(lineColor);
|
95
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+
for(Map.Entry<Integer,Integer> e : p.entrySet()) {
|
96
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+
if(f){
|
97
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+
g.drawLine(originpx+x1*onex, originpy-y1*oney, originpx+e.getKey()*onex,originpy-e.getValue()*oney);
|
98
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+
}else{
|
99
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+
f=true;
|
100
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+
}
|
68
|
-
|
101
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+
x1=e.getKey();
|
69
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-
|
102
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+
y1=e.getValue();
|
103
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+
}
|
104
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+
}
|
105
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+
change=false;
|
70
106
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}
|
71
107
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return image;
|
72
108
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}
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4
詳細にした
answer
CHANGED
@@ -28,7 +28,9 @@
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|
28
28
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```
|
29
29
|
せっかく作っても使わなきゃ意味がないので変更
|
30
30
|
```java
|
31
|
-
panelll = new GraphPanel(1000,1000,10,10);
|
31
|
+
panelll = new GraphPanel(1000,1000,10,10);
|
32
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+
panelll.setpoint(0,0);
|
33
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+
panelll.setpoint(15,40);
|
32
34
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```
|
33
35
|
|
34
36
|
こっちはとりあえずのグラフ生成クラス(いろいろひどいのでライブラリ使ったほうが良いかと)
|
3
いくつか間違えてました・・
answer
CHANGED
@@ -22,7 +22,7 @@
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22
22
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public void paintComponent(Graphics g) {
|
23
23
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Graphics2D g2D = (Graphics2D) g;
|
24
24
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BufferedImage im=gr.drow(Color.RED);
|
25
|
-
g2D.drawImage(im,
|
25
|
+
g2D.drawImage(im, 0,0, this);
|
26
26
|
}
|
27
27
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}
|
28
28
|
```
|
2
使い方を追記
answer
CHANGED
@@ -1,6 +1,7 @@
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|
1
1
|
回答です・・DBからの取得についてはまたべつの質問でどうぞ
|
2
2
|
要するに画像をパネルに描画するだけ
|
3
3
|
ちなみにxyの座標のペアを指定してグラフを生成します
|
4
|
+
指定はpanelll.setpoint(int,int)メソッドからどうぞ
|
4
5
|
widthは画像の横幅
|
5
6
|
heightは画像の縦幅
|
6
7
|
pxはx一当たりの横幅
|
1
コードが間違っているのを変更
answer
CHANGED
@@ -1,5 +1,10 @@
|
|
1
1
|
回答です・・DBからの取得についてはまたべつの質問でどうぞ
|
2
2
|
要するに画像をパネルに描画するだけ
|
3
|
+
ちなみにxyの座標のペアを指定してグラフを生成します
|
4
|
+
widthは画像の横幅
|
5
|
+
heightは画像の縦幅
|
6
|
+
pxはx一当たりの横幅
|
7
|
+
pyはy一当たりの縦幅
|
3
8
|
```java
|
4
9
|
public class GraphPanel extends JPanel{
|
5
10
|
private Graph gr;
|
@@ -9,6 +14,9 @@
|
|
9
14
|
public setpoint(int x,int y){
|
10
15
|
gr.setpoint(x,y);
|
11
16
|
}
|
17
|
+
public removepoint(int x){
|
18
|
+
gr.removepoint(x);
|
19
|
+
}
|
12
20
|
@Override
|
13
21
|
public void paintComponent(Graphics g) {
|
14
22
|
Graphics2D g2D = (Graphics2D) g;
|
@@ -19,7 +27,7 @@
|
|
19
27
|
```
|
20
28
|
せっかく作っても使わなきゃ意味がないので変更
|
21
29
|
```java
|
22
|
-
panelll = new GraphPanel();
|
30
|
+
panelll = new GraphPanel(1000,1000,10,10);
|
23
31
|
```
|
24
32
|
|
25
33
|
こっちはとりあえずのグラフ生成クラス(いろいろひどいのでライブラリ使ったほうが良いかと)
|