I need a Function or section of code that finds the angle of a lineShape. Alternitively, a code to find the angle between two set coordinates would also work. I need to know the angle in order for my program to work properly. I'm using VB Express 2010.
View 2 RepliesWell I attempted collision detection and it was only ok. First of all only the out of bounds place would work because I just made the right side of the screen make you go left etc.My moving button also goes outside of the area for a brief second before it teleports back to the bounds + 3 or w/e.Never mind all of that I guess.Could someone give me some source code for the simplest way to do collisions from all angles (like a zelda game or something...) or just up/down or left/right (like in pong).
View 1 RepliesHow can i calculate the angles of a triangle, where i have the lengths in cm of all 3 sides?
heres an example where i already know the angles. i know its a sin, cos or tan formula, but nothing i've tried works.
I have got the code to draw the line at the angle. the issue is that I need 0 degrees to be the right hand side and not the top.[code]
View 37 RepliesI followed this tutorial [URL] in creating a pong game in VB NET, everything worked well as followed but believe there is still more development that needs to be done to it, for example if the ball is moving horizontally in a straight line, it will just re-bound of the paddles in the same angle everytime which means there is no point to the game. When the game starts moving the ball at a random angle and the ball re-bounds of either paddles, it will re-bound in the same angle it started with each time.
Pointed out what code this is:
Dim random As New Random() ' Random instance
Dim xVel As Single = Math.Cos(random.Next(6, 8)) * speed ' Move ball from randomized angle in X-axis
Dim yVel As Single = Math.Sin(random.Next(6, 8)) * speed ' Move ball from randomized angle in Y-axis
[code]....
If the ball hits the top of the paddle object, it should re-bound at a different angle How it should be is when the ball hits the paddle object, it should re-bound at a different angle, if it intersects at the top of the paddle, it should re-bound up or bottom of paddler should re-bound down.
Here's the code i'm using to rotate:
Dim m As New System.Drawing.Drawing2D.Matrix
Dim size = image.Size
m.RotateAt(degreeAngle, New PointF(CSng(size.Width / 2), CSng(size.Height / 2)))
Dim temp As New Bitmap(600, 600, Imaging.PixelFormat.Format32bppPArgb)
Dim g As Graphics = Graphics.FromImage(temp)
g.Transform = m
g.DrawImage(image, 0, 0)
(1) Disposals removed for brevity.
(2) I test the code with a 200 x 200 rectangle.
(3) Size 600,600 it just an arbitrary large value that I know will fit the right and bottom sides of the rotated image for testing purposes.
(4) I know, with this code, the top and left edges will be clipped because I'm not transforming the orgin after the rotate.
The problem only occurs at certain angles:
(1) At 90, the right hand edge disappears completely.
(2) At 180, the right and bottom edges are there, but very faded.
(3) At 270, the bottom edge disappears completely.
Is this a known bug?If I manually rotate the corners an draw the image by specifying an output rectangle, I don't get the same problem - though it is slightly slower than using RotateAt.
I'm working on a Pythagorean Theorem program that calculates the sides and angles of a right triangle. I have the side measurements and all that down, but I can't find the Visual Basic function that will allow me to calculate the angles from the side measurements. I've tried asin and sinh, but both give me the wrong measure.
View 2 RepliesIm making a little game. All it does is make a bunch of Random Letters. Move around the screen. Im drawing to the form with paint. But i wanted to make it. So you have to click the letter that my program ask's you to click. I know there is easy ways of doing this. Like just getting the x,y and the mouse x,y on the click event. But i was wondering. If i could accomplish this task. Just by Scanning about 10x10 pixels from where the mouse down event is triggerd. to see if a letter is there. And how i could make it see if it is an A or B etc. The font is white. And about this size. I was thinking about it counting all the white pixel's but that wouldn't work?
View 3 RepliesIs there a way to remove the LineShape shadow effect when selecting the lineShape? I tried
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
Dim g As Graphics = e.Graphics
g.SmoothingMode = SmoothingMode.AntiAlias
Dim oldmode As SmoothingMode = g.SmoothingMode
g.DrawLine(_Pen, X1, Y1, X2, Y2)
g.SmoothingMode = oldmode
End Sub
but finally, this have some back effects on invalidation: when moving (in a panel) the line leave traces - does not invalidate properly.
I dont even know if you can do this in vb.net but, how do you change the pictureboxes x2 y2 to tilt some degrees other than 90 degree angles?
View 2 RepliesI need a code that will create a new microsoft.visualbasic.powerpack LineShape on a picturebox like this
dim r as new rectangle = new rectangle(0,0,100,100)
In an application I am using this code for drawing a X/Y graphic line in a panel object (Sungraph):
Dim SunDrawCount As Integer
Dim SunArea As New ShapeContainer
SunArea.Parent = SunGraph
[code]......
I am facing an important problem with the LineShape control (installed with the Visual Basic Power Pack) . The problem is that in design time once I have "Sent to back" some controls (other controls, like text boxes), I can no longer select them! The controls get stuck on the form and I can't select them anymore! Even if I select those controls from the Properties window, I still can't do anything with them (like move them over the form etc). Right now I am using VS 2008. However maybe this problems doesn't appear on VS 2010?
View 19 RepliesI need a code that will create a new microsoft.visualbasic.powerpack LineShape on a picturebox like this
dim r as new rectangle = new rectangle(0,0,100,100)
In a windows forms class in Visual Basic 2008, there are several horizontal lines created with the lineshape control dragged from the toolbox. A very strange thing is happening with the horizontal lines. In the forms designer, all of the the lines (both horizontal and vertical) look fine, but when the program is executed (in debug mode), about 3 seconds after painting the screen nicely, I get echos of portions of the horizontal lines about 50px or so above my horizontal lines. You can look at the screenshot here: [URL]
View 17 RepliesI'm doing a maze using VB10. its about moving a PictureBox between LineShape lines using buttons to move it. the problem is, can I make the picture not to move through the LineShape? if so how? or should I use something else other than the LineShape and another question can i save the progress of the maze and come back to it later? if so does it require using a database to save the location of the PictureBox?
View 3 RepliesI am trying to update a Vs2008 project to vs2010. In one of my projects I have two controls. The controls are not being seen by the form when I open it up in design view. They are friend controls. (No code has changed since I opened it up in vs2010.) But it was running fine in vs2008.
View 4 RepliesHow do i find all the classes of the .net controls for example how do i see the class of the button control?
View 13 RepliesI'm having an issue finding an UpdatePanel inside of a Gridview inside of a Formview in Javascript. The Below Doesn't work.[code]....
View 2 RepliesI've been digging around but I can't seem to find anyway to adjust the volume controls (the windows general ones) using VB .NET.Basically, I want to make a program that's always on top that allows me to changemute the microphone and the other volume values on a specific device - not necessarily the one set as default.
I got this weird feeling that I'm missing something quite simple but I simply could not find anything. I saw some media players and such but nothing similar to what I was looking for.
I have this VB.Net form and I need to know the names of all the controls on it. I would suppose that Microsoft keeps a list of all the controls on any given form I just don't know how to access it.
View 4 RepliesI am editing an application that was developed using VB .NET. The form has a button, I see it in the code but it is not visible in the Form. Also, when I place a new button, it comes as Button2 meaning there is a Button1 - I am not sure how to find where it is and place it at the right place.
View 2 RepliesI have a group of controls dynamically added to a forms with a name like "OptionID_#" where the "#" is unique number.1st I need to check if these controls are checked/unchecked, but am having a difficult time even finding them to make that first check.I thought controls.find might work, but Controls.Find ("Option ID_" True) dues not seem to find my controls.2nd I need to get the "#" from each of those checked options.I think that Split(conControl.Name, "_") should work to get me two different parts one with the OptionID, and the other with the "#".Still stuck on the first part though of actuall locating the controls I need.
View 9 RepliesProtected Sub Calendar2_Selectionchanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles Calendar2.Selectionchanged
Dim myDate1 As String = ""
[Code].....
Have to find total days from two date controls after selecting dates in two controls it should print total days by calculating after immediate selection of second date control
This time I am stucked with a JSP page which is loaded in my webbrowser control. I have checked that it has been loaded. But I am unable to locate any of the controls of that page. Even in the count of any html controls it displays me 0. The page contains two frames and there is no "iFrames". Has Javascript got do anything with this?
View 2 RepliesI have a datagridview control with a number of comboboxes on it.I am generating a custom combobox with a DataGridView_EditingControlShowing event.How do you get the name of the combobox in DataGridView that fired the event?as all actions on the DataGridView trigger this Sub
View 2 RepliesI have a form with many buttons on it and I would like to loop through all the controls in a group control and find out which button is clicked.
I plan to use the click event of the button and I know it's easy to create a click event procedure for all of the buttons but would like to avoid that.
The group control is called GroupFilterButtons.
1. i added a datagrid at runtime on a form. i want to bind a datasource to the datagrid in a button's click event handler, but the datagrid doesn't seem to be visible anywhere else outside the form load event where it is declared. how can i find the datagrid control?
2. and another beginner question.. how to i declare a string that spans multipe lines? i tried with the + operator like in c#, but it doesn't work.
I am getting the following error when i try to publish my application with the checkbox for ClickOnce Security On. Could not find file 'Microsoft.Windows.Common-Controls, Version=6.0.0.0, Culture=*, PublicKeyToken=6595b64144ccf1df, ProcessorArchitecture=*, _ Type=win32'. [projectname ]
[Code]...
i have 2 windows machines with VB 2008 installed on both. I created a windows app on 1 machine and put the powerpacks dll file with the app folder anyway. For some reason, when i load the project up on my other machine, i just get a never ending list of errors related to PowerPacks. Why? I have exactly the same version installed and tried download the PowerPacks on Windows website. I just get over 102 errors saying Type 'Microsoft.VisualBasic.PowerPacks.LineShape' is not defined. Anyone care to enlighten me?
View 3 Replies