50 Random Circles With Different Colors?

Feb 9, 2011

I am working on a program to generate 50 circles starting with the smallest in the center of the form. The circles do not over lap and the appear to grow outward. Each circle has to be a random color. I have the code that generates what I need but all the circles are the same color. I was thinking about either using an array to hold each circle and color as to not assign the same color to all of them but not sure about putting a graphic in an array. I also think maybe a nested loop of some sort but was unable to figure one out.

Private Sub mainForm_click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Click
Dim penColor As New Pen(Color.FromArgb(Rnd() * 255, Rnd() * 255, Rnd() * 255, Rnd() * 255), 2)

[Code]......

This works to do what I need to get done, I just need each circle to have a random color as it is drawn.

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Apr 21, 2009

On click, I'd like this piece of code to create new polygon, shown in multiples with different coordinates and colors, sizes and orientation. Color and polygon in multiples works. My issue is I'd like to add more code that will allow each of the multiple polygon created scaled randomly and rotated. How to keep the polygons inside the canvas?

So far looks like this when user clicks start: [URL]

Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles startButton.Click
Dim endCount As Integer = random.Next(1, 10)
Dim plotPoint As New Point
For count = 1 To endCount
[Code] .....

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I have written a code to generate random colors and the code is working perfectly fine.I have a requirement in which I should not generate Red or Shades of Red in Random Color function. suggestion on how to not generate Red and its shades

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Sub DrawHitCircles(ByRef accuracy As Short)
Dim GO As Single
Dim check As Short
Dim guns As Short

[code]....

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1. I need 4 circles inside of a form.

2. I need it so when the user selects the circle, they can drag and drop it in an order.

3. User clicks OK to finish their chosen order.

I haven't designed anything before that needed to check the borders of the form etc.

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I've got a fun little question for you all. I am designing a program that allows you to click on a picture to input data in certain areas. What I want to do it pretty allow someone to take a look at a picture. Click the add point tool, then select an area on the picture where it places a circle. I then want them to be able to go back to the circle and modify data if necessary

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I am trying to randomly generate circles at the top of the screen, but it doesn't seem to be working. I want it to generate five balls, but it only generates one, and it's in the same place each time. [Code]

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Can I make the circles move outside of the form? Let's say, the whole screen?

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I am struggling with coding up a bit of logic.

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eg
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Zone 2
Zone 3

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Item1, Zone1
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Item3, Zone3
Item4, Zone2
Item5, Zone1

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This is a problem like the puzzle - "find minimum number of coins to completely cover a piece of paper".

The difference is:

in my case RADIUS of the coins is variable (but all coins should have same radius).

Real scenario:

1. I need to draw circular shapes on a rectangular image.

2. Number of circles (N) is CONSTANT/ User input

3. Size of image (S) is CONSTANT/ User input

4. The program should find the MINIMUM RADIUS (R) that is needed to draw N number of circles on an image of size S, so that, the image is completely hidden behind the circles.

This is NOT a puzzle/assignment that I'm trying to solve.This is part of a larger project that I'm working on.

I don't need any drawing code. I just need the code/algo to find the radius.

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Note that my problem is NOT drawing circles in C#.

My problems is drawing them without much whitespace and without intersection.

My thought would be using "Orbits" and then draw the circles with center on the "orbit" lines. (with some orbit lines for bigger and some only for smaller circles)

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Private Sub GenerateTrees()
NumberOfTrees = Int(Rnd() * 10) + 15
For i = 0 To NumberOfTrees - 1
bmap.MakeTransparent(Color.Fuchsia)

[code].....

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Private Sub showcolor_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles showcolor.Click
Dim selectsq As String

[code].....

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I am trying to check two colors against each other with this Test but it does not appear to work. Can anyone suggest what I am doing wrong. :-

Do While (ptColor = Panel1.BackColor)
lft.X += 1
secPt = PointToScreen(lft)
ptColor = GetColor()
cnt += 1
Loop

When I look at the ARGB values at a breakpoint ,then numerical values of the three component colors are the same but the loop does not get executed. ?

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I got hold of this code to give RGB components of a pixel in a

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[code]....

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[Code]...

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[Code]...

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