im trying to create a code that will allow a point to circumference a center point.The coding i have below does this to a point but then the circle start going crazy and repeats itself.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Timer1.Start()
End Sub
[code]....
i'm developing a simple 2d animation program. my task is to get the center point of a rotation, for example: at the frame 0 there is a rectangle at x,y coordinates and with 0° of rotation at the frame 10 there is the same rectangle, translated and rotated what is the center point around which the rotation occurred? This is not really a question about programming, i know, rather than a problem of geometry.
View 1 RepliesI looked at several questions/answers posted already such as this one on a planar polygon but could not find one that explains results in 3D such as the one shown in this paper and this one on "point cloud skeletonization through Laplacian-Based Contraction" where this quadratic equation comes back in both.
View 1 RepliesWhen I call this Messagebox, is it possible to center the Messagebox on the parent form rather than centering it on the center of the screen?
View 2 RepliesI hve been working with points a lot recently, and I have been wondering if there is a way to set a point without setting point.x and point.y separately. For example for (3, 5): Point1 = (3, 5) But that isn't right
View 4 Repliesi found this video today and its a simple vb game but made me wonder how they kept the charater centered during movement.url...Anyone have a simple snippet to demostrate how they made a larger resulution then vewable and kept the picturebox centered and only moved the viewable area?
View 2 RepliesI have a Diagonal line drawn on a picture box on my forum and i need to know if the user has clicked the line I have the Start point and End Point of the Line and the mouse x,y location So i basically need to find out if the x,y of the mouse is on the line.
View 2 RepliesI'm trying to extract a piece of text from within the string, defining both a starting point and an ending point. For instance, say I want to search for the text found between "That is a " and " car" in the string "That is a red car", so it would return "red".I know you can use .SelectionStart and SelectionLength, but the length of the word can change, so the selection length can vary. What I want is to establish a specific starting point and a specific ending point from which to extract the text from the string.
View 5 RepliesI want to know if its possible to loop in a variable and grab info from point a to point b
This is what I have stored in my Variable
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[Code].....
i have a picturebox which displays a map i have 2 modes add point and delete point when the user clicks the picture it creates a point on the picture where the user has clicked that works perfectly its when i try and delete the point when it doesent work :/ i have all the points loading from an xml file this is the code i have:
[Code]...
basicly i want it to when the user clicks the point it fines the x any y in the xml delete the node then delete all the points on the map then reload them all according to the xml
I'm trying to calculate the direction between two points on a two-dimensional grid. Actually I want to determine if that vector is within a range of two values. Suppose the grid's origin is 0,0 at the upper left corner, and 0 degrees represents north. I have a point A on that grid. I want to know if a line from point A to point B on the grid is within a range of directions between 111.8 degrees (a little south of east) and 158.2 (a little east of south). Those are approximations; the 111.8 is 90 degrees plus the arctangent of 2/5, and 158.2 is 180 minus that value. I worked out a series of calculations worthy of a medieval astronomer, but I suspect there is a simpler way. I'm going to have to do this for a variety of other vectors, and I'd like to generalize
View 4 RepliesI know how I can construct an icon setting point by point, but that isn't what I want. I want to use a bitmap file or a jpeg -is easy to convert an jpeg to an bitmap- and built an icon that looks like this picture.
View 2 RepliesI want to make a drawing application which needs a few drawing functions I cant handle myself as im not very mathematicly inclined The first on the list of functions is to create an arc from a start point, end point and radius. The method signature is as followes.
Function CreateArc(byval StartPoint as PointF, EndPoint as PointF, Raduis as single) As PointF()
'Code to create an array of points...
[Code]....
I have a DataGridView that will occasionally have a RowError icon displayed in the RowHeader (shown below)I have code that displays a small form when the users mouse moves over the row header or clicks the row header.I would like to draw aline from the top-left of the form to the middle-right of the row header.I basically want to point from the form to the error icon.
View 1 RepliesI need to move an ellipse from a known point on the screen to another known point on the screen.
I've tried using For.....Loops with less than desired results.
I can't remember everything I've tried, a lot of trial and error has been layed to waste. Lol
I've ended up with this code after putting together what I've tried, what I've learned elsewhere, and a couple of posts I've read on here.
All I want to do is move the ellipse from one point to the other along a straight line that forms the angle between the two points (X1,Y1) and (X2,Y2), make it grow from 2 pixels at it's start, to about 80 pixels by the time it reaches half way, then shrink from 80 pixels back down to 2 pixels by the time it reaches the point (X2,Y2).
Easier said than done.
Here's what I have at the present.....
Dim W As Integer
Dim H As Integer
Dim Num As Integer
[Code].....
....This seems like such a simple task, yet it's been a week since I came up with the idea, and I've had little success.
come out with the codes for moving the mouse pointer from point (200, 100) to point (300, 400), repeatedly. Using VB 2008.
View 8 RepliesI looked around the forum can't find something really simple.I want to scrape everything between the
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to
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copy it and use it right after it's website and I navigate using webbrowser1.
i want to work on a shooting game,and i already have a code for the rotation of the image but i have a few problemFirst problem(for the tank /ship): i want the image to AUTOMATICALLY rotate facing the mouse cursor,i know how to rotate but but i dont know how to convert the location of the mouse to an angle that the image will face,,
View 1 Repliesassuming i have an isoceles triangle, where i know the height + base width, how
can i calculate the width of that triangle at 1/3 of the distance from the point + 2/3 of the distance from the point?
i thought it'd be simply 1/3 base width + 2/3 base width, but my drawing is +/- a few pixels when i resize it?
How do yo convert a 3d point into a 2d point that can be displayed on the screen? This is the basic code that I need:
Dim ScreenXCoord as integer
Dim ScreenYCoord as integer
Private Sub ConvertPoint(PointXCoord as integer, PointYCoord as integer,
[Code[,,,,,
I have a form with 6 buttons, when form get maximize the buttons is not in the center anymore, how can I do the buttons get in the center always?
View 5 RepliesI need to figure out how to get the center of a panel box to x = 0 and y = 0 with the max x and y values are 100 and the min x and y values = -100.
View 3 RepliesI,m working in project that had MDI, I need to center the child
View 3 Repliesim trying to center some pictures 5 above and 5 below in the center of a form "Form1". Right now i can make them look centered in a smaller area, but when i maximize the screen the pictures are in the upper left. I tried changing some options with no luck and have been browsing some WWW posts but im not coming up with any understanbable.
View 4 RepliesWorking in visual basic 2008
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
MyBase.OnPaint(e)
For Each kb As KeyboardButton In _buttons
e.Graphics.FillRectangle(Brushes.White, kb.Bounds)
e.Graphics.DrawRectangle(Pens.DarkSlateBlue, kb.Bounds)
e.Graphics.DrawString(kb.KeyString, Font, Brushes.Blue, kb.Bounds)
Next
End Sub
How would I go about centering the drawing string. In this case the string is the letter "a".
I have a WPF UserControl. I have inside a Label (autosized). How I do for center the label in the middle of the UserControl?
View 1 Repliescenter a label with a form. I have tried with the following code but was unsuccessful.
Me.Width = 135
Me.Height = 38
Dim w As Integer = Me.Width / 2
Dim h As Integer = Me.Height / 2
[code]....
how to center an external app on the screen, an example would be Adobe Reader, using either Process.Start or Shell. I've 'attempted' both but haven't found anything to control the position. I've also found some code using Api32 functions, FindWindow, MoveWindow, etc, but have not been successful at those either.
View 3 RepliesI have my Webbrowser navigate to an image.I'd like for the image to be centered inside the Webbrowser. Is this possible?
View 4 RepliesHow would I center an application on or near the mouse location?I've made an application that opened after right clicking its associated extension, I want this to load close to the mouse (Similar to the explorer right click menu does)
View 2 Replies
