Find The Angle Between Two Points: Point(0,0) And Point2(26,79)
Aug 21, 2009find the angle between two points: Point(0,0) and Point2(26,79)
View 10 Repliesfind the angle between two points: Point(0,0) and Point2(26,79)
View 10 RepliesFind Gradient and Angle from 2 Data Co-ordinates.
Trying to find the gradient and then the angle.
The program will open a text file and the program will do its stuff.
The text file will be like: I have 2 co-ordinates (X, Y) just contain numbers.[code]...
I 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
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....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.
The below photo shows that point 4 is connected to point 1 while point 5 is not connected to point 1 according to the flow direction. How can I programme this?
The below code shows the connections between nodes where the row of the matrix represents "FromPoint" and the column represent the "ToPoint".Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase .Load
[Code]...
I was wondering if there's a way to add points to something defined like this
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i want to create a windows form where i can add names, Employee ids and the projekt they are working on. Clicking a button should add the data to a database. Later id need to retrieve this data.First i was thinking that setting up a sql database and finding functions to access it would be fairly easy however.. Theres obviously more than one way of doing this and im having trouble finding the right angle...
View 13 RepliesMake a grid with points that dots may be placed at just by clicking that point
View 4 RepliesI just need to know how to find the length of one side of a triangle and one angle aswell. I will always know the other two sides in length and one angle. I have enclosed a diagram.
I need to know length of C and the angle as shown.
how to make 45 angle shoot or 45 angle movement of bullet in vb.net
View 1 RepliesIt is possible to find the points of a part of image example, do I have a photography of a castle where there is a flag, manage to find where is the flag positioned to runtime?
View 4 RepliesI started making a game in VB.NET, but I am stuck on the pathfinder. There are round objects. I want to know how to find a path get one object from one point to another (or at least as close as possible) without any collisions.
View 2 RepliesOk, so I have a webbrowser that loads a flash page, and there is some text there, which I want to compare to another image.
I have checked for server communication and there is none when you press the button.
So I want to know if it's possible to (A) Find an image on the web browser (B) Find RGBs of (x,y)s on the screen and compare them to their values?
I have written an application that calls 'My.Computer.FileSystem.SpecialDirectories.Currentm UserApplicationData'. My application is working fine, but one user has reported an issue that has me stumped. When this property is accessed, the following exception is thrown:
"Unable to find an entry point named 'VerLanguageName' in DLL 'version.dll'". The stack trace says that the exception came from Microsoft.Win32.UnsafeNativeMethods.VerLanguageNam e(Int32 langID, StringBuilder lpBuffer, Int32 nSize)
I don't think the problem is with my code. I suspect that there is something wrong with a system-level component on her computer, particularly with the DLL that is mentioned. Is this DLL part of a specific windows component that could be reinstalled/repaired?
I get this error
Unable to find an entry point named 'UpdateResource' in DLL 'kernel32.dll'.
I have scanned a map which was in UTM WGS 84 projection system. The scanned map is now in jpg format and loaded into picturebox. If I select a point, how could I know that point's latitude and longitude? How could I integrate a projection system over the image displayed in picturebox?
View 1 RepliesI am suing VB 2008 express edition.
I am trying to solve this problem since many days. The problem seems to be rather mathematical, but I faced difficulties dealing with Grids and how to store them using visual basic.
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In my problem, I have a world of 200 x 200 units divided into 4 x 4 grids (Each of 50 units).
There is a line crosses some areas has the coordinates of Point A (Starting Point) of (XA = 12.43, BA = 159.48) and Point B coordinates (Ending Point) of (XB = 112.95, YB = 20.95).
The question is, how can find the length of (A to C1), (C1 to C2), (C2 to C3), (C3 to C4), (C4 to C5) and finally (C5 to B)?
In addition, how can I indicate the square in which the line is inside?
note that the method should work for all conditions (-ve and +ve line slopes) and for different A and coordinates.
I have a dll that I'm using in my application. But it gives me error when I try to compile my application because it says
"Unable to find an entry point named 'DoSomething' in DLL 'HelperDLL'.dll'.[code]...
is there a way to offset the points in a polygon without having to change each one individually the points are in an array
View 2 RepliesI get this during debug Unable to find an entry point named 'CloseHandleA' in DLL 'kernel32'.I get no compiling errors, I just get this Debug error :/
View 6 Repliesi don't know why I got the error.
Code:
EntryPointNotFoundException was unhandled by user code
Code:
Private Declare Function SetForegroundwindow Lib "User32" (ByVal hwnd As IntPtr) As IntPtr
Private Declare Function GetForegroundwindow Lib "User32.dll" () As IntPtr
Private Declare Function SetActiveWindow Lib "user32" Alias "SetActiveWindow" (ByVal hwnd As Long) As Long
[code]....
I seem to have a problem with my DLL Function call test. I don't usally use orums...but...this is racking my brains and I need to know fast! I have searched and searched google, but I have no answer, (I do, but don't understand very well).I have created an application called epsControl.exe in Windowssystem32 folder. I have also created a file called epsDevDrv.dll or EPS Device Driver. It doesn't really act as a device driver, I just gave it a fancy name, (that's why I'm called the VB Weirdo.........) anyway to the point:My dll does a simple function, to answer a mathematical problem (simple), and return it to the exe file which puts it in a msgbox.
Imports System.Runtime.InteropServices
Public Class Device1
Public Function LoadDrivers(ByVal s As Integer) As Integer
[code].....
When I run this code from WMI code Creator it works as it should it opens a console window and displays the information but in an application at this line
For Each queryObj As ManagementObject in searcher.Get() I get the error Unable to find an entry point named 'GetCurrentApartmentType' in DLL 'wminet_utils.dll[code]...
I 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 Replieslocation of character in mixing laguage (e.g. farsi & english) sentence are different in memory and display , you can check it with point() all Instructions as LEFT ,RIGHT ,MID not work correctly when using it on the mix language sentence also GetPositionFromCharIndex(I) also not get position of the char user see on display...i need to have exact location point() of display character (from left or right side of text box)
View 1 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 RepliesAs an experiment, I created a separate library to hold a function, and then tried to call it from within an application.Normally, would I would expect to see in the code for the function declaration, something like this:Public Function MyFunction Alias "MyFunction" (ByVal X As Long) Export As LongVB uses the regular convention:
View 10 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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how can i get the points which make a polygon from a region which was derived from the polygon's points?
View 1 Repliesi 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