JAVA APPLET PIE GRAPH (SOURCE CODE)

เช่นกัน นี่คือ source code กราฟวงกลม
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ทุกทานสามารถ copy ไปแก้ไขเพื่อใช้งานได้ตามใจครับ



---------------------------- SOURCE JAVA ---------------------------
import java.awt.*;
import java.applet.*;
import java.util.*;
import java.lang.*;
import java.text.*;

public class GraphPie extends Applet {
private Double Width ;
private Double Height ;
private static final double CONVERT_DEGREES_TO_RADIANS = Math.PI / 180 ;

private double cos(int x) {
Integer a = new Integer(x);
double y = a.doubleValue();
double z = Math.cos(y * CONVERT_DEGREES_TO_RADIANS );
return z;
}

private double sin(int x) {
Integer a = new Integer(x);
double y = a.doubleValue();
double z = Math.sin(y * CONVERT_DEGREES_TO_RADIANS );
return z;
}

public void paint(Graphics g) {
Color background,colorFont,color;
String licence = getParameter("COPYRIGHT") ;
int grap = Integer.parseInt(getParameter("GRAP")); // ตัวแปรนี้ใช้กำหนดระยะขอบโดยประมาณ X px.

Width = new Double(getParameter("WIDTH")) ; // ความกว้างซึ่งเป็นตัวเดียวกับที่ Applete CODE ใน HTML
Height = new Double(getParameter("HEIGHT")); // เช่นเดียวกับความกว้าง แต่เป็นความสูง

int x = grap;
int y = grap;
int w;
if ( Width.intValue() >= Height.intValue() ) {
w = Height.intValue() - ( grap * 2 ) ;
} else {
w = Width.intValue() - ( grap * 2 ) ;
}
int h = w;
int x_c = x + ( w/2);
int y_c = x_c;
Double r = new Double(w / 2);

background = converColor(getParameter("BACKGROUND"));
setBackground(background);
colorFont = converColor(getParameter("FONT-COLOR"));

int fontSize = Integer.parseInt(getParameter("FONT-SIZE"));
Font font = new Font(getParameter("FONT-NAME"),Font.PLAIN,fontSize);
background = converColor(getParameter("BACKGROUND"));
g.setFont(font);

int num_x = Integer.parseInt(getParameter("NUM-X")); // จำนวน ข้อมูลใน 1 ชุด

StringTokenizer DATA,COLOR;
String DATA1 = getParameter("DATA");
String COLOR1 = getParameter("COLOR");
DATA= new StringTokenizer(DATA1,"|");
COLOR= new StringTokenizer(COLOR1,"|");
Double sum = new Double(0);
Double [] val ;
val = new Double[100] ;
for (int i = 0 ; i <= num_x - 1 ; i++) {
String yy = DATA.nextToken();
val[i] = new Double(yy);
sum = new Double( sum.doubleValue() + val[i].doubleValue() );
}

Double idx = new Double(0);
Double pre = new Double(0);
int t;
Double diff = new Double(0);
NumberFormat form;
Locale[] locales = NumberFormat.getAvailableLocales();
form = NumberFormat.getInstance(locales[0]);
for (int i = 0 ; i <= num_x -1 ; i++) {
String zz = COLOR.nextToken();
color = converColor(zz);
g.setColor(color);
Double v = new Double(val[i].doubleValue());
//Double v1 = new Double(val[i].doubleValue());
v = new Double( v.doubleValue() * 360 / sum.doubleValue()) ;
diff = new Double( idx.intValue() - pre.intValue() );
g.fillArc(x,y,w,h,pre.intValue(),v.intValue()+diff.intValue());
t = ( pre.intValue() + (v.intValue()/2));
Double mm = cal_x(r,t,x_c);
Double nn = cal_y(r,t,y_c);
g.drawString( form.format(v.doubleValue() * 100 / 360 )+"%", mm.intValue(),nn.intValue());
pre = new Double( idx.intValue() + v.intValue() );
idx = new Double( idx.doubleValue() + v.doubleValue());
}
if ( pre.doubleValue() < 360 ) {
diff = new Double( 360 - pre.doubleValue() );
g.fillArc(x,y,w,h,pre.intValue(),diff.intValue());
}
}

private Double cal_x(Double r,int x,int center) {
Double mm;
int x_grap;
x_grap = 40;
if ( x >= 270 && x < 360 ) {
x = x - 270;
mm = new Double( r.doubleValue() * sin(x) ) ;
mm = new Double(center + mm.intValue());
mm = new Double(mm.intValue() + (x_grap/4));
} else if ( x >= 180 && x < 270 ) {
x = x - 180;
mm = new Double( r.doubleValue() * cos(x) ) ;
mm = new Double(center - mm.intValue());
mm = new Double(mm.intValue() - x_grap);
} else if ( x >= 90 && x < 180 ) {
x = x - 90 ;
mm = new Double( r.doubleValue() * sin(x) ) ;
mm = new Double(center - mm.intValue());
mm = new Double(mm.intValue() - x_grap);
} else {
mm = new Double( r.doubleValue() * cos(x) ) ;
mm = new Double(center + mm.intValue());
mm = new Double(mm.intValue() + (x_grap/4));
}
return mm;
}

private Double cal_y(Double r,int x,int center) {
Double nn;
int x_grap;
x_grap = 10;
if ( x >= 270 && x < 360 ) {
x = 270 - x;
nn = new Double( r.doubleValue() * cos(x) ) ;
nn = new Double(center + nn.intValue());
nn = new Double( nn.intValue() + x_grap);
} else if ( x >= 180 && x < 270 ) {
x = x - 180;
nn = new Double( r.doubleValue() * sin(x) ) ;
nn = new Double(center + nn.intValue());
nn = new Double(nn.intValue() + x_grap);
} else if ( x >= 90 && x < 180 ) {
x = x - 90 ;
nn = new Double( r.doubleValue() * cos(x) ) ;
nn = new Double(center - nn.intValue());
nn = new Double(nn.intValue() - x_grap);
} else {
nn = new Double( r.doubleValue() * sin(x) ) ;
nn = new Double(center - nn.intValue());
nn = new Double(nn.intValue() - x_grap);
}
return nn;
}

private Color converColor(String strIn) {
Color ret;
ret = new Color(0,0,255);
// chk reserve word
strIn = strIn.toLowerCase();
if ( strIn.equals("blue") ) {
ret = new Color(0,0,255);
} else if ( strIn.equals("red") ) {
ret = new Color(255,0,0);
} else if ( strIn.equals("green") ) {
ret = new Color(0,255,0);
} else if ( strIn.equals("tomato") ) {
int num1 = hex2oct("FF"); int num2 = hex2oct("63"); int num3 = hex2oct("47");
ret = new Color(num1,num2,num3);
} else if ( strIn.equals("yellow") ) {
int num1 = hex2oct("FF"); int num2 = hex2oct("FF"); int num3 = hex2oct("00");
ret = new Color(num1,num2,num3);
} else if ( strIn.equals("navy") ) {
int num1 = hex2oct("00"); int num2 = hex2oct("00"); int num3 = hex2oct("80");
ret = new Color(num1,num2,num3);
} else if ( strIn.equals("black") ) {
int num1 = hex2oct("00"); int num2 = hex2oct("00"); int num3 = hex2oct("00");
ret = new Color(num1,num2,num3);
} else if ( strIn.equals("white") ) {
int num1 = hex2oct("ff"); int num2 = hex2oct("ff"); int num3 = hex2oct("ff");
ret = new Color(num1,num2,num3);
} else {
// chk format #aabbcc
String tmp = strIn.substring(0,1);
if ( tmp.equals("#" ) && strIn.length() == 7 ) {
tmp = strIn.substring(1,3);
int num1 = hex2oct(tmp);
tmp = strIn.substring(3,5);
int num2 = hex2oct(tmp);
tmp = strIn.substring(5,7);
int num3 = hex2oct(tmp);
ret = new Color(num1,num2,num3);
} else {
// ถ้า error return blue color
ret = new Color(0,0,255);
}
}
return ret;
}

private int hex2oct(String strIn) {
int ret = 0;
int d,j;
int sum = 0;
for ( int i = 0 ; i < strIn.length() ; i++ ) {
String tmp = strIn.substring(i,i+1) ;
tmp = tmp.toUpperCase();
if ( tmp.equals("A") ) {
d = 10;
} else if ( tmp.equals("B") ) {
d = 11;
} else if ( tmp.equals("C") ) {
d = 12;
} else if ( tmp.equals("D") ) {
d = 13;
} else if ( tmp.equals("E") ) {
d = 14;
} else if ( tmp.equals("F") ) {
d = 15;
} else {
if ( tmp.compareTo("0") >= 0 && tmp.compareTo("9") <= 0 ) {
d = Integer.parseInt(tmp);
} else {
d = 0;
}
}
j = ( strIn.length() - i - 1) ;
Double x = new Double(Math.pow(16,j));
sum = sum + ( d * x.intValue()) ;
ret = sum;
}
return ret;
}
}
-------------------- END PROGRAM JAVA -------------------------
------------------ SOURCE HTML ----------------------------------
<HTML>
<BODY>

<APPLET code="GraphPie.class" WIDTH="200" HEIGHT="200">

<PARAM NAME="SHOWVALUE" VALUE="1"/>
<PARAM NAME="GRAP" VALUE="20"/>

<PARAM NAME="BACKGROUND" VALUE="#DCF0FF" />

<PARAM NAME="NUM-X" VALUE="3" />
<PARAM NAME="DATA" VALUE="30|50|20" />
<PARAM NAME="COLOR" VALUE="BLUE|GREEN|RED" />

<PARAM NAME="FONT-NAME" VALUE="MS Sans Serif" />
<PARAM NAME="FONT-SIZE" VALUE="12" />
<PARAM NAME="FONT-COLOR" VALUE="BLUE" />
<PARAM NAME="COPYRIGHT" VALUE="www.pcd.co.th" />

</APPLET></TD>

</BODY>
</HTML>

Create Date : 02 เมษายน 2554		2 comments
Last Update : 2 เมษายน 2554 9:50:37 น.
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