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Bouncing Balls: Creating a new ball when two balls collide 4 Weeks Ago by jprog1000 … array list), and then called the move and the fill oval methods, the program froze. Can you tell me why? What… Re: Bouncing Balls: Creating a new ball when two balls collide 4 Weeks Ago by toneewa Some minor syntax fixes. Some things to consider are the collision and distance of drawing the next ball. A ball inside a ball's radius will cause numerous collisions. Even the starting ball locations can be already causing collisions. I added a collision counter display. Increased the maximum balls to make to 50. The timer delay can also impact … Re: Bouncing Balls: Creating a new ball when two balls collide 4 Weeks Ago by jprog1000 Thank you so much for your reply and additions! It is certainly working as I wanted. I will read through the code you have added and ask you any questions I might have. I hope you don't mind. Regards Re: Bouncing Balls: Creating a new ball when two balls collide 4 Weeks Ago by Dani I’ll mark this question solved :) Re: Bouncing Balls: Creating a new ball when two balls collide 4 Weeks Ago by Dani … oh, sorry, missed the bit about you still needing clarifications. Feel feee to ask :) I’ll now unmark this topic as solved. /facepalm Re: Bouncing Balls: Creating a new ball when two balls collide 4 Weeks Ago by toneewa I cleaned up the code some more. Removed some things that were not being used. I ran into a couple problems which caused the freeze you mentioned. It was memory heap space and array allocating. E.g., if x or y becomes negative, and also infinite recursion. I added a x/y coordinate display for a ball, and tinkered with the placement of the … Re: Bouncing Balls: Creating a new ball when two balls collide 3 Weeks Ago by jprog1000 Hello, Thank you again so much! All your additions are clear, but it seems like whenever two balls collide, more than one ball is added to the arraylist and painted. Any way to have just one ball added to the panel for every collision? Have some kind of a toggle flag in paintcomponent? Regards Re: Bouncing Balls: Creating a new ball when two balls collide 3 Weeks Ago by toneewa Yes, this is true. Overlapping ball spawns can do that causing a chain reaction. Something like that could be done. How you handle the spawning of the new ball is what I played with a bit before. You will see better collision detection changing to: g.fillOval(ball.getX(), ball.getY(), 1 * ball.getRadius(), 1 * ball.getRadius()); Re: Bouncing Balls: Creating a new ball when two balls collide 2 Weeks Ago by jprog1000 Got it. Thank you so much! Re: Bouncing Balls: Creating a new ball when two balls collide 2 Weeks Ago by vortex_1 In my opinion, implementing a feature in a bouncing balls simulation where a new ball is created when two balls collide can add an interesting and dynamic element to the simulation. This feature can introduce a sense of complexity and unpredictability, making the simulation more engaging and challenging for users. It could also provide an … Re: Bouncing Balls: Creating a new ball when two balls collide 2 Weeks Ago by jprog1000 Great reply, vortex! Agree with all your points. Re: Bouncing Balls: Creating a new ball when two balls collide 2 Weeks Ago by aishamushtaq Hi, Its helpful for me. I got my answer. Oval shape does not display 12 Years Ago by skiabox …*/ public class Oval extends javax.swing.JFrame { /** * Creates new form Oval */ public Oval() { initComponents();… { public void run() { new Oval().setVisible(true); } }); } // … Re: drawing oval in a jpanel 15 Years Ago by VernonDozier …reworked my code. it works mostly except for putting an oval at launch by default, which im not sure cant be… extends JPanel? [QUOTE=Lensva;846928] also all but the last oval disapear on resize. is there any way around that without… (g); [/code] the same behavior should occur (only the last oval is visible). I think that is the root cause of… creating shape like circle or oval(i wanted to design my own circle shape) 15 Years Ago by karhong Hi, I'm trying to draw circle and oval by myself without using ".addEllipse" Can I draw it by pointer? which mean i point 4 point and then make it to become the shape of circle and oval. I tried to find solution in the net, but i dont seems to get any solution. Any Idea? creating a moving Oval 15 Years Ago by Luckymeera hi everyone i would be thankful if anyone could post a simple example where you continuously create a new oval after a random period of time( e.g A new moving oval is created after every 10 -15 seconds), and is destroyed when it reaches a particular X or Y coordinate. Looking forward for a reply.. Re: drawing oval in a jpanel 15 Years Ago by Lensva …my code. it works mostly except for putting an oval at launch by default, which im not sure …achieve the same functionality? also all but the last oval disapear on resize. is there any way around … void paintComponent(Graphics g) { if(mouseEvent!=null) //draws an oval at launch without this g.fillOval(mouseX, mouseY, 10, 10… creating an oval when clicking on a canvas by means of a mouse 16 Years Ago by nish88 Hi!! Actually,i am doing a simulation and i want a dot (small oval) to pop up when i click(by mouse) on the canvas. can anyone please help me or if possible give me the piece of codes to perform this. thanks in advance... drawing oval in a jpanel 15 Years Ago by Lensva its supposed to draw an oval on MouseClicked: [code="java"] import java.awt.event.*; … Pictuerbox as oval 14 Years Ago by tqmd1 Dear Experts How to display picturebox as oval shape. Please help Re: Oval shape does not display 12 Years Ago by NormR1 Is the JPanel added after the GUI is made visible? Try calling setVisible after adding the JPanel. Re: Oval shape does not display 12 Years Ago by NormR1 There could be a conflict between the layout managers you are using. Try getting rid f the one used by the IDE and creating the layout yourself. I can not test the code bBecause the code uses packages not in the Java SE Re: Oval shape does not display 12 Years Ago by skiabox I add the JPanel in the constructor (it is the second line). Re: Oval shape does not display 12 Years Ago by NormR1 What layout manager is being used? Does it accept a call to add() without any constraints/parameters? For example: add(component, BorderLayout,CENTER); Oval drawn is jagged instead of smooth 15 Years Ago by VernonDozier OK, this is a follow-up to this thread, which I have marked solved. [url]http://www.daniweb.com/forums/thread152797.html[/url] I changed things from GIF to PNG and that seems to solve the saving issue, but there is a new issue. I'm trying to create a semi-transparent circle as an image, which can be saved. The saving and retrieving seems to… Re: Oval drawn is jagged instead of smooth 15 Years Ago by Ezzaral I would just guess it stems from the fact you created a fixed size buffer image and rendered the red circle on it without anti-aliasing. You then draw that image in paintComponent. The image itself will be unchanged and I don't think turning on anti-aliasing in paintComponent will affect that image. Re: Oval drawn is jagged instead of smooth 15 Years Ago by VernonDozier [QUOTE=Ezzaral;719098]I would just guess it stems from the fact you created a fixed size buffer image and rendered the red circle on it without anti-aliasing. You then draw that image in paintComponent. The image itself will be unchanged and I don't think turning on anti-aliasing in paintComponent will affect that image.[/QUOTE] Yes, I think … Re: creating shape like circle or oval(i wanted to design my own circle shape) 15 Years Ago by selvaganapathy Do you want to implement the Circle, or Line Drawing Algorithm instead of using Graphics.DrawLine(), DrawEllipse () Method? Or You want to make application like paint ? rubberband elastic Drawing? Re: creating shape like circle or oval(i wanted to design my own circle shape) 15 Years Ago by karhong Actually, I created other shape such as trapezium, parallelogram, by using the addlines. I created them by having a middle point of the shape start from (x,y) - (100,100) but when i straight use the build in function to draw ellipse, i can't find any ways to set the mid point of the ellipse start from (100,100) I do that is because when … Re: creating shape like circle or oval(i wanted to design my own circle shape) 15 Years Ago by selvaganapathy Hi, You can perform the Transformation on your Points(By just adding or subtracting (100, 100) to each points). GDI+ uses (0,0) is the Mid point. But it provides Matrix class to Transform the Coordinate System. Example to Transform the Coordinate System [CODE=CSharp] private void Form1_Paint(object sender, PaintEventArgs e) { Graphics g …