Solved

# Color Graphics Problem

Posted on 2002-03-29
175 Views
Hi, say I've got an applet that displays values in an array in the form of a bar graph. Each value corresponding to a bar. How can I color one particular bar with a different color from the rest such that the one that is the largest has a different color to the other bars.

the code that displays the graphs in the array is below.
thanks...

public void displayBars (int [] data, Graphics g){
try{

g.setColor(Color.red);
setBackground(Color.white);

int largest;
int yStart = 20;
int yHeight = 200;
int xStart = 20;
int width = 30;
int gap = 10;
int  x = xStart;

for (int count =0; count <data.length; count++){
g.fillRect(x, yStart + yHeight- data[count], width,data[count]);
g.drawString(Integer.toString(data[count]),10+x,240);
x = x + width + gap;
}//for
}//try
catch(NullPointerException e){
}//catch
}//displayBars
0
Question by:q_bic
• 3
• 2

LVL 9

Accepted Solution

Venci75 earned 100 total points
ID: 6905006
You can use something like this:

public void displayBars (int [] data, Graphics g){
try{
// Here you can define the possible colors and thir sequence
Color[] colors = {Color.red, Color.yellow, Color.blue, Color.green};
setBackground(Color.white);

int largest;
int yStart = 20;
int yHeight = 200;
int xStart = 20;
int width = 30;
int gap = 10;
int  x = xStart;

for (int count =0; count <data.length; count++){
g.setColor(colors[count%colors.length]);
g.fillRect(x, yStart + yHeight- data[count], width,data[count]);
g.drawString(Integer.toString(data[count]),10+x,240);
x = x + width + gap;
}//for
}//try
catch(NullPointerException e){
}//catch
}//displayBars
0

LVL 1

Expert Comment

ID: 6956634
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Moderator @ Experts Exchange
0

LVL 9

Expert Comment

ID: 6959267
<recommendation>
Venci75
</recommendation>

i believe my comment was what q_bic was looking for. I normally don't recommend myself but in this case
i believe that my post was a valid solution
0

LVL 1

Expert Comment

ID: 6965653
Thank you, Venci75.

g_bic logged in AFTER this was posted, but has not yet responded.

Please do update and finalize this question, g_bic.  If more is needed, please let us know.

Moondancer - EE Moderator
0

LVL 9

Expert Comment

ID: 7923899
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:

Venci75
EE Cleanup Volunteer
0

Expert Comment

ID: 7978506
Finalized as proposed

modulo

Community Support Moderator
Experts Exchange
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