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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May 28, 2009
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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Mar 22, 2010
However my m8 will support me with any problems about the server, but he doesn't know how to fix this one in the client.The Sub have to create random sized circles, which are showed when u just hit some **** in space.It works fine in VB6, but in .NET i got a lot of ISSUES:
Sub DrawHitCircles(ByRef accuracy As Short)
Dim GO As Single
Dim check As Short
Dim guns As Short
[code]....
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Aug 5, 2009
The purpose of this (maybe there is a better method I don't know) is to so the user can say what order they want pieces of code to be compiled in. Sort of like a flow-chart. I want it somewhat animated, so, example being 3D circles the user drags and drops in the order they want things.
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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Jul 5, 2010
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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Mar 1, 2009
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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Jul 14, 2009
Right now I'm trying to make collide a lot of circles drawn during runtime. I have no problem making 1 circle collide with the form's bounds nor with another circle, however, if I draw like 25 circles in runtime, how can I make each one "move" and set the "collision properties"?
Can I make the circles move outside of the form? Let's say, the whole screen?
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Nov 14, 2010
I am struggling with coding up a bit of logic.
I have a map which I have created zones which are basically rectangles which have the coordinates sorted
eg
Zone 1
Zone 2
Zone 3
I then want to create circles within the rectangles. So for example
Item1, Zone1
Item2, Zone1
Item3, Zone3
Item4, Zone2
Item5, Zone1
So i would like Item 1, 2 and 5 to show up as three circles and when the mouse cursor floats over them to show it. The item list is dynamic and so I am not sure how to get about with this?
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Jan 13, 2011
Im drawing a chart based on values from a database as an image in a picturebox. I can then add lines and circles etc in the picturebox, so as to highlight areas in the chart.
The next step I would like to do is to have temporary lines and circles, so when I move the mouse, the circle grows or shrinks and only when I release the mousebutton the circle is assigned to the chart picturebox.
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Jun 13, 2012
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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Apr 28, 2011
Question: I need to draw pictures as below in C#/VB.NET Draw ishihara-transformations (circles in circle without intersection)?
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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Apr 20, 2012
I would like to draw a rectangle on a form, for example to mimic a steel beam that is 6 metres long.Within this rectangle, there may be 4 "openings" or circles that mimic a diameter of 600mm, so i need to draw 4 circles within the rectangle, to indicate a beam that has 4 openings. Other issues I need to cater for is that one of the circles may not be in the centre, it may be slightly raised.The user can change the length of the beam and the size of the openings so i'd like to refresh my drawing to keep in line with this.
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May 26, 2011
I've read numerous posts and threads about random number generation, but I havent' run across this.If I generate a bunch of random numbers, the results are radically different if I create a new Random generator for each number than if I use on Random generator for all the numbers. The results are much more consistent and evenly distributed if I use the same Random generator.I would have thought the opposite,because creating a new Random generator each time should reduce the number of random repetitions, if a different time slice is used to create the random number.[code]......
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Apr 4, 2010
The class Random is out right defective. It always produces the same random numbers in the same sequence. Things I have tried so far is every kind of seed you can think of as well as Randomize. The result is that I always get the same random numbers in exactly the same sequence.
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Nov 26, 2011
I am practicing using the drawing commands, and have gotten a grass background and black happy face that moves around the background.It's a 10x10 grid of 50 pixels.I want (at the moment, when i press enter) it to generate a random number of trees (15 ~ 25) at random locations on the background. The program doesn't freak out about anything, and the variables seem to be right (using stop commands) but it's not drawing anything. Here is the code for the "GenerateTrees" command I have for when I press enter.
Private Sub GenerateTrees()
NumberOfTrees = Int(Rnd() * 10) + 15
For i = 0 To NumberOfTrees - 1
bmap.MakeTransparent(Color.Fuchsia)
[code].....
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Oct 10, 2011
I would like to use integers generated by Random.org in a small desktop widow app. Im using visual basic. All My search terms bring up unrelated (to My issue) information. Currently I am using the local random statement/command.
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May 29, 2011
I am trying to make a texas hold em game and it is of the utmost importance that my code generate a random number. But using a random number function that I always end up with a lot of the same numbers over and over again. Any ideas on how to make it "TRULY" random? [code]
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Apr 19, 2012
I've made an image viewer which opens a random image from a specified folder, but the random number is not that random at all... I've already used Randomize(), but without result.
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Nov 24, 2009
I don't take programming lessons at school or anything, and I'm starting to (try to) teach myself about random things.Currently I'm making an app that has 3 functions:
-Random Integer (1 to 100)
-Random Answer (Yes or No, similar to a coin flip)
-Random Dice Roll (1 to 6)
How would I go about doing this?At the moment all I know about random numbers etc. is that I will need to do something along the lines of Dim dice As New Random or something like that, but, like I mentioned, I have no idea.I am well aware of the DIC rules that you won't write the code for me/do my "homework(?)" for me, and that's not what I'm asking.
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Nov 26, 2011
VS2010 (SP1) / .NET 4 on Windows XP. The question is simple, the answer; not so much. When generating a salt, should the LENGTH of the salt be random, fixed or a random number within a (min/max) range? I am using RNGCryptoServiceProvider to generate the salt, just unsure of the length of the salt.
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Aug 21, 2009
I have another form which shows the colors from the sql server table when i click a button called show . I have arranged 15 buttons as you show me previously When i click a button called show color , the colos in the sql server tables will be shown This is my aim. for example the itm in the combobox is TATA SUMO the colors are totally 7 in the table of database , how all the colors will shown
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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Sep 13, 2010
i just want to know about programming in vb.net. it is based on traffic light first i have 3 text boxes. now when i hit the tab key it is supposed to change in green, yellow and then red. i got the change of color but i do not know how to assign the tab key in it.
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Mar 5, 2012
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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Nov 26, 2009
I got hold of this code to give RGB components of a pixel in a
PictureBox(picPic): Code:Dim pnt As Point = New Point(txtXpos.Text, txtYpos.Text) Dim RGBstring As String = ((TryCast(picPic.Image, Bitmap)).GetPixel(pnt.X,
[code]....
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Oct 2, 2009
Am I just limited to the VB pen colors, e.g color.orange, color.black etc or can I define my own rgb colors? If so, how do I do that?
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Apr 27, 2009
I'm creating a little program to help my students to understand colour-mixing in Hex for their Web Design course. What I've got so far, is as follows: The user is presented with 3 sliders (one each for R, G and B) and a button. The 3 sliders each go from 0 to 15 - and when the user hits the "Show me!" button, Select Case jobbies translate the 0 to 15 values as seen here:
[Code]...
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Feb 28, 2010
this is what i need to do: In the right-hand label, invert the colors of the image. Hint: the inverting white should give black and inverting black should give white. Inverting red (255,0,0) gives cyan (0,255,255). visual basic express 2008 this is what i have, what do i need to make changes to in order to accomplish this?
[Code]...
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May 12, 2010
I have a code like this Dim p as new pen(color.blue)
and i need the pen to have two colors so its like ty dye. It is a drawing program so the pen needs to have two colors.
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Jan 28, 2011
Is there a way to change the border color for buttons created using vb.net?
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