Find 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]...
find the angle between two points: Point(0,0) and Point2(26,79)
View 10 Repliesi 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 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 RepliesWhy my math keeps getting rounded to 0 decimal points by default?When I do this I get return value of 1
Private Sub Button4_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
Dim numb1 As Integer
numb1 = 100 / 78
MsgBox(numb1)
End Sub
How to get that value up to two decimal points (like 0.00)?
It 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 have a grid containing rows flagged with different priorities. I want to color the high priority rows red, low ones blue, etc. I'd like to set the shade based on a mathmatically calculated gradient rather than arbitrarily assigning colors to specific priorities. How can I extract a single color from a single point along gradient?
View 1 Repliesis 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'm using mscharts, but my question might not need to be chart related to be answered.My chart contains 5 XY data points that will be shown in a spline (line graph). The X values are from text boxes 1-5, my Y values are from textboxes 6-10. I'm adding them to my chart by code.
[Code]...
My issue is I have to enter the data in order to make my line proper. Is there a way to first arrange the points, then add them to the chart. Otherwise if I add a lesser point in the middle, it "z's" the line.
I've created an attribute, similar to the ToolboxBitmapAttribute, that allows you to associate an Icon or Image to a class.
To associate an image, the resource file base name, a type (to find the assembly), and the name of the resource are passed to the attribute constructor. I then use the ResourceManager to get access to the resource:
Dim rm = New ResourceManager(ResourceFileBaseName, passedType.Assembly)
Dim obj = rm.GetObject(resourceName)
This is fine except that I want the option to pass just the resource name in the constructor, and omit the resource file base name. Then I would pick up the resource from the default resource file. When I say default resource file, I mean the one when you start Visual Studio, open the property pages and click the Resources tab.
The problem is, when developing in VB.Net, the base name is 'RootNamespace.Resources', and when developing in C#, the base name is 'Rootnamespace.Properties.Resources'.
Where can I programatically find the name of the default resource file?
Update
What I can do is get a list of all resource names:
t.Module.Assembly.GetManifestResourceNames
I can then look for a name that ends with Resources.resources and use that to build the resource file base name.
How would I find the default internet browser like IE, Or Firefox on any computer?
View 2 RepliesBelow is some code. Note the comment "SOULD BE -1" If I make it -1 I get the message that I'm trying to write into protected memory.
Not on all images but a few that I tested.It appears that inBitmap.Height points to non-image data.
1)Can you tell me what is wrong and how to fix it?
2)Or how to test so I don't crash.
[Code]...
I used a StreamReader and StreamWriter with UTF-8 encoding to find and replace chars in files. Some of the chars were replaced with the Unicode default char of � OR �. I found that for this I should have used encoding 1252 so I'm set for future changes but how do I fix the files that have been cluttered with the default char? Is there a way to do this with StreamReader?
View 4 RepliesHow can I get the path of the default media player? (The one used when clicking "Play all" in a music-specific folder in explorer, on Windows Vista or Windows 7)
View 1 RepliesHow to find the default audio playback device
View 5 RepliesHow can I find the default email application for any given computer?
Once I have done that:
How can I start a process with the email application and specify an email address in the "To" field and a comment in the "Subject" field?
I am writing a quick program to display the network information of a computer without having to run ipconfig or enter the TCP/IP settings on the network adapaters.I have managed to pull the computer name, local IP address and the external IP address, but I now need to get the default gateway, the subnet mask and the DNS resolvers.I have tried using the registry, but the key differs from computer to computer, so that method has been ruled out.
View 8 RepliesI have an array of type Double() (1 x n) that I am trying to quickly plot on a graph I've already set up. The only thing I want/need to do is take my array and store it as data points (y-axis values) in the series I already have. What's the best way to do this? Also, will the data points that are plotted change as my array changes, and if not, how would I replot those new points and get rid of the old points?
View 1 RepliesI have an ASP Chart (v4) which displays the data I need perfectly. I want it to show labels at the top of the data points and I am having some difficulty with it. Here is my code that works for both series but does not display the labels:
[Code]...
how do you find the default temporary folder in windows xp, vista and windows 7?
View 1 RepliesI'm using Visual Studio 2008 writing a Windows Forms project and I'd like to know a way to step around 'default instances' of forms. I don't like default instances, they constantly get in my way, and working in a team it's causing some really annoying confusion about the object identity of which form is actual in focus at this moment. This means I need to go threw the entire project (big) and remove ALL references to any 'default instance' of a form. But this is difficult to do as there's no errors or anything, it basically requires me to search for every text of "MyFormType." and then checking if it's accessing a default instance and fix it like that.
It'd be nice if I could just turn it off or something so I could
1) easily find all erroneous lines of code
2) avoid the accidental use of it in the future by anyone on the team
Well I have a list of things I want to search based on multiple points of data...for example Resolution, 3D capable, touchscreen capable....etc....What is the best way for display someone can think of & filtering results by capability, I have none of it typed out, etc...like list of objects & capabilities, etc... alreat...so it can be made any way that is thought to be good(with speed as well) for many different listings...say 1,000 of them & it filters pretty much instantly....reading capabilities & such & the list itself is easy but how can I make a filter(unchecking something brings back things, checking something takes away only since well your adding capabilities to filter selection....I have pictures that can go with items too as well as a name & more information could be given directly with the method or clicking on the picture/item.
View 13 RepliesI need to load and parse a text file and extract data between points on any given line. I can load the file, but it's the parsing that's giving me headaches. e.g. "Phoned Jim and arranged for John to attend site" First I need to search for "Phoned" because the line always starts with that, and then I need to extract "Jim and arranged for John"
[Code]....
how can i get the points which make a polygon from a region which was derived from the polygon's points?
View 1 RepliesOnce again my math fails me, as I can't remember how to do this.
If I have two Lines, line1 and line2, and they both have the same X1 and Y1 properties, but different X2 and Y2 properties, how can I get the angle that is created between these lines.[code]...
I am writing a program that needs the user to input three numbers (i.e. sides of a triangle) and based upon those numbers tell the user if the numbers they enter represent a right triangle or not. how to go about this mathematically and care to offer any suggestions on the syntax of the calculations.
View 19 Repliesif i use
Dim Gr As Graphics = SomePanel.CreateGraphics()
Gr.Drawline(StartingPoint, EndingPoint)
I want to be able to have a line drawn from point a to b, but be able to rate it 90 degress based on user input so if the user inputs 70 I want it to rotate 30 degree's to simulate a 70 deg relationship to a horizontal line that it touches if that makes any sense. a is starting point b is the user inputs 70 and it draws it at 70 in relationship to the horizontal lineheres the image that i forgot to post above Attached image(s)
how would i paint an image onto a form according to the mouse position? i have a sprite and i want the front of the sprite to always face the mouse cursor.
View 1 Repliesi am having a problem with either my algorithm for restricting an angle between lines. I have a diagram of my problem at the following linK: [URL] In the above diagram, i know the positions of the Points marked on the diagram. The Black lines represent where the lines are currently, i want to move the lines so that they are at right angles to one-an-other (i.e: they are perpendicular) if they are moved to not be so. This is represented by the gray lines.
View 1 Replies