Graphic Repaint / Refresh - Draws A Circle Using A Timer - Circle Gets Displays It Flickers
Jun 8, 2011
I have developed a program which continuously draws a circle using a timer. Now every time the circle gets displays it flickers and which is because i have used me.refresh. Is there any other way to avoid this flickering.
Here is my code
Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As EventArgs) Handles Timer1.Tick
Me.sweepAngle += 1
If Me.sweepAngle = 360 Then
[CODE]....
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Mar 17, 2009
I need to write some code which draws a predefined circular path (say 48pix diameter) and use a timer to delay it to show it being drawn. I need to use GDI+ to do this. My guess is on the Timer.Tick, I would set some Point value for the next point on the path, and then call Invalidate to raise the Paint event.
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Apr 7, 2010
In my application for checking Irish Lottery numbers I have a form which displays a list of previous draws. The form contains a listview which is populated from a setting in my.settings as follows: [code] I would like to replace "Wednesday" with "Wed" before adding the item to the listview. I have tried using strings.replace to acheive this in various parts of the above code but each time the code runs the listview still displays the full day.
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Nov 3, 2011
Private Sub PictureBox1_Paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
e.Graphics.DrawEllipse(Pens.AliceBlue, New Rectangle(New Point(0, 0), New Size(PictureBox1.Width, PictureBox1.Height)))
End Sub
I am trying to draw a circle in VB.Net, .Net version 4.Nothing shows up in the paintbox.
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Jun 14, 2009
I have an assignment and I have to calculate the area of a circle. I have my textboxes and buttons but I don't know how to write the codes and I have followed the directions and the example in my book which is microsoft visualbasic 2008 step by step.
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Nov 6, 2011
When I change the color of the circle it creates a new circle. How do I get it to change the color of the existing drawn circle?
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Nov 5, 2011
I have created a program that Draw a circle and then you can move it around a picturebox. I have made code so that it changes colour but instead of changing the colour of the circle already been drawn it creates a new circle which when you overlap the original circle with the new circle it cuts part of it.So what I wanted it to do when I change the colour of the circle it changes the colour of the circle already been drawn instead of creating a new circle.
[Code]...
Also I can't use the X and Y coordinate input to move the circle to the entered coordinates.
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Jan 27, 2012
I drew a filled circle using: pixFractal.CreateGraphics.FillEllipse(RedBrush, MyPoint.X, MyPoint.Y, 16, 16)
I expected the circle to be centered on MyPoint. Instead, it seemed to be drawn as though centered in a square whose upper left corner was at MyPoint.
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Jun 9, 2011
I am making a whiteboard program. So far I managed to generate the ability to draw lines and other small things. The problem is that I want to make a circle that follows the cursor to display what a dot there would look like. I am aware of the creategraphics property of picture boxes, but when I do that the circle stays there and a new one is generated where the mouse is now (an expected result). My question is, is there a way to draw and delete circles as the mouse moves. Also, is there a more efficient way of doing this. I did try using the OvalShape found in the power pack, but I cannot figure out how to display that over the picture box, when I right click the oval nothing happens.
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May 9, 2010
Okay, so I am making a whiteboard program. So far I managed to generate the ability to draw lines and other small things. The problem is that I want to make a circle that follows the cursor to display what a dot there would look like. I am aware of the creategraphics property of picture boxes, but when I do that the circle stays there and a new one is generated where the mouse is now (an expected result). My question is, is there a way to draw and delete circles as the mouse moves.
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Oct 10, 2009
Using Visual Basic 9 I want to draw a circle and gradientFill the circle using FillGradientStyle = Centraland a FillStyle = SolidWith the same results as can be achieved in The Power Packs 3.0 OvalShape.
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Apr 18, 2009
I searched this forum for the answer before posting this and from what i have noticed there is no "simple" way ofcourse "simple" definition varies from one person to another
my definition of simple is something like this Line(x1,y1,x2,y2,color) or something like that.[code]...
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Jul 26, 2010
How can I program a quarter portion of a circle, with points A and B ??
How can I code the red line on the image?
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Mar 12, 2011
User launches the application, enters width of circle, then enters width and height of rectangle and presses the button. Then app draws the circle with rectangle inside of it (if it fits). App should output the coordinates x1;y1 , x1;y2 , x2;y1 , x2;y2 (corners of rectangle) somewhere on form and would be great if it could post those coordinates on x and y axes (optional).
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Feb 24, 2011
how to draw the circle at the below position, i have marked where i should get the angle. And i m also sending my piece of code.
Plz tell how to draw the circle at 180 degree on x-axis, For green circle. And later i should draw at the same place semi circle, dnt know how to draw them... i.e on green circle at zero n 180 degrees.
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Jun 21, 2010
I am having some trouble drawing a circle that is constant when the program runs. right now I am able to create one of my clock hands (that is going counterclockwise), but I can't figure out how to draw the circle of the clock, any suggestions? [Code]
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Dec 29, 2011
I'm trying to draw a partial circle with GraphicsPath, starting at the top of the document, going counter-clockwise 270 degrees, so that it will look like a clock at 3 o'clock. The following is a simple, partial translation of my function.
Dim DestImage As New Bitmap(Source.Width, Source.Height)
Dim g As Graphics = Graphics.FromImage(DestImage)
Dim gp As New GraphicsPath()
[Code].....
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Nov 3, 2009
can i have codes of drawing a circle using visual basic 2005
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Jul 13, 2010
i need a code the will draw a circle on a picturebox that will have the border color blue and the inside color black. i also need the same thing but for a square.
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Jul 7, 2011
I would like to be able to move mouse in a circle, given the height and width...
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Feb 8, 2011
I am trying to do a do while loop to make a circle draw itself resized by 1 each time 50 times. I just dont know how to define the numbers that make up the circle size properties. here is my simple code
Me.CreateGraphics.DrawEllipse(pencolor, 135, 125, 5, 5)
I would like to just make a simple do while loop to adjust the 5,5 by +1. I am really new to programming and any help will be excelent. If I knew the property name of the 2 numbers I need to change I could declare them as a letter H & W and just do while
H,W is < 56
H+1
W+1
if this makes any sense?
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Mar 9, 2011
I have a picture and I have defined a circle on it(as a rectangle) . This will not always be on the same place and i need a way to get all the points that is in the circle. If it it will always be a near perfect circle.
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Oct 21, 2010
To me it seems that Update, Refresh and Repaint all do the same job but there are no doubt rules about when to use which. I would be grateful for any enlightenment.
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Mar 5, 2011
I have to make a game "connect four". I'm having some trouble with the 2-dimensional Array that needs to be created in order to play the game. Firstly there is a function which makes rectangle shaped pictureboxes into circleshaped boxes. Secondly there is a method which is supposed to create a 2-dimensional array with circle's but i can't get it to work. When I run it it only gives me 1 circle at the location which i have given it. I don't know how to get it to repeat. Here's the code.
[Code]...
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Jan 8, 2010
i just want the RadioButtonList without the radio button on it, i will code the rbl so that selected items have a different background color and make it look more professional, the radio buttons themselves i want to be able to get rid of in terms of apperance... if you know of any way to do it,
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I'm a beginner in visual basic and i am working on a maze that that your are supposed to move a ball or circle using he arrow keys [code]...
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This code is to draw a circle in the form with one button in vb.net. Dim g as system.drawing.graphics
g=me.creategraphics
dim p as new system.drawing.pent(system.drawing.color.Blueviolet)
g.drawellipse(p,150,100,30,60)
end sub
this is not working it is showing the error in the declaration of p any one can help me out to rectify this error
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Feb 4, 2011
Is there a way to draw a circle by specifying the center of the circle rather than the upper left corner?
This is what I'm using to draw the circle[code]...
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Feb 2, 2011
How to draw lines inside the circle. I mean a circle with n-number of lines within in it.
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I want someone to help me on using graphics on vb.net form.I am planing to make a clock so first i want to draw 12 points in a circular fashion.
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