Solved

can i pass a float to drawLine() function

Posted on 2000-05-11
7
265 Views
Last Modified: 2012-05-04
can i pass a float to drawLine() function
0
Comment
Question by:kumarnvs
7 Comments
 

Author Comment

by:kumarnvs
ID: 2799614
nothing
0
 
LVL 4

Expert Comment

by:jerch
ID: 2799891
no, you can type cast the float value to int value.

g.drawLine((int) x1, (int) y1, (int) x2, (int) y2);

cheers...
Jerson

0
 

Author Comment

by:kumarnvs
ID: 2799942
i have usedthis method only but i need to be precise
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 4

Expert Comment

by:jerch
ID: 2800161
Why not multiply the values by 10 to the nth power.  For example if you have 1.23, multiply it by 100 to make it 123 then in this case, the decimal places are also considered.

Jerson
0
 
LVL 3

Expert Comment

by:falter
ID: 2800504
You have to decide which precision you need and then use jerch comments to draw the line.

There is no way to draw a fraction of a point, you can only draw a point or not.

And lines are many points.

You have to adjust your coordinate system to this.

Lets say x and y are running from 0.00 to 1.00
than you have to map (0.00,0.00) to 0,0
and 1.00/1.00 to 100/100 ... to be able to draw all possible lines in this range with 2 digit precision.

In extension to jerch's comment, to be more precise round and scale (multiplying by something usefull) your values.

P.S. Give jerch the points he give the answer

0
 
LVL 1

Accepted Solution

by:
cssathya earned 50 total points
ID: 2800973
If you are happy with using JDK1.2.2, it comes with Graphics2D, which allows you to draw graphics using floating point numbers. all you have to is three things.

1. convert the Graphics object to Graphics2D object, like
public void paint(Graphics g){
  Graphics2D g2 = (Graphics2D) g;
}

2. Create a new Line2D object and draw it using the g2.

g2.draw(new Line2D.Double(x1, y1, x2, y2));

You can alternatively use Line2D.Float also for floating point numbers.
0
 

Author Comment

by:kumarnvs
ID: 2809486
Thanks for the answers.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
topping2 challenge 13 80
HashMap Vs TreeMap 12 55
How can I do a Massively massive community reviewing-and-grading site? 7 69
backtracking recursion  code 19 53
Java had always been an easily readable and understandable language.  Some relatively recent changes in the language seem to be changing this pretty fast, and anyone that had not seen any Java code for the last 5 years will possibly have issues unde…
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
Viewers learn how to read error messages and identify possible mistakes that could cause hours of frustration. Coding is as much about debugging your code as it is about writing it. Define Error Message: Line Numbers: Type of Error: Break Down…
This tutorial covers a step-by-step guide to install VisualVM launcher in eclipse.

929 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

9 Experts available now in Live!

Get 1:1 Help Now