This is my problem...I have created graphicspaths (gp) in Visual Basic...but every gp has a name. So I want to print every name next to the gp. I use GetBounds to get the nearest rectangle around the gp. But like for a circle the name will be quite far away from the gp. Now I want to draw a line from the name to the outline of the gp...can somebody help me with this little part of script?
View 11 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.
[URL]
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 written a simple program which receive data from serial port i.e (temperature) and display on a line graph. but i require accumlate the graph data upto 10 minutes on screen. after that it again accumlate next 10 minutes data.[code]....
View 1 RepliesIs there anyway to find out if a graphicspath contains a point like you can with the rectangle object etc?
View 4 Replies(VB 2008) ok im making space invaders for a midterm project, that is i made space invaders and then lost my thumb drive, WITHOUT BACKING UP ANY OF MY PROJECTS. point is its due tomorrow and im having trouble with one of my methods. i have a collection that stores all the missles the enemy shoots, then i have a collection that stores each picture box that makes up the barriers. my method is supposed to search thro both collections and check to see if they intersect. if they are both visible they become invisible creating an illusion that they dissappear. i hav organized the rest of my code to ignore the missles and barriers if they are invisible but this part isnt working for some reason.
[Code]...
is it possible to detect overlapping Graphicspath? I have e.g 200 different Graphicspaths created, and I want to filter out which one overlap...
View 10 RepliesI'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].....
I've written a short function for array intersection and wanted to know why one function is faster than the other.
1)Dim list2() As String 'Assume it has values'Dim list2length As Integer = list2.length
[Code]...
Someone once told me VB.net had some built-in function to check if two rectangles intersected. But I cannot find it.
View 1 RepliesI have made considerable progress on a game I am making, but one of the fundamentals of it relies on collision detection. At the moment, I am using Rectangle.IntersectsWith() to check "collision" between two PictureBoxes, but I don't want everything all square (graphics, etc). So I set about adjusting regions and have ended up with a circular button (from the MSDN example). What I'd like to know is this: Is there any way I can check intersection between any two OBJECTS, not just rectangles? As in, if the rectangle intersects with or is inside the circle in any way then how do I check it programmatically?
View 3 Replieschanging the text alignment property. If I change it from left, center to right, you can see all three remain painted. It's as though nothing is being cleared before the next draw.(A screen shot of this is also attached)My best guess is it's the ControlStyles.Opaque(only thing I've changed between when it worked, and when I started to notice it wasn't)... But unfortunately I need this particular style for the transparency effect I'm looking for.
[code]....
Im currently in the mid of making a drawing project , and part of it is free drawing using Graphicspath object
now drawing is ok,moving or dragging the drawn path is done using System.Drawing.Drawing2D.Matrix but the problem is using System.Drawing.Drawing2D.Matrix object to scale the graphicspath object results into scaling and moving the drawn graphicspath on the same time ..
any resizing method code is listed below
Public Overrides Sub ResizeShape()
Dim Sqrt As RectangleF = GetBounds()
Dim Dx As Integer = MoveResizeEnd.X - MoveResizeBegin.X
[Code]....
I have a list of user names (we'll call 'original list') one object is returning. I have a list of user names (we'll call 'filtration list') another object is returning. I am testing a method that returns all of the items from the original list not in the filtration list. Ideally what I want is something like:
Assert.That(returnedList, Has.No.Members.In(filtrationList))
So far the only thing I can do is iterate over the filtrationList and do
Assert.That(returnedList, Has.None.EqualTo(filteredUser))
I need to calculate a couple of lengths and an angle, so basic trig. Embarrassingly I can't remember enough of my school trig to sort this out in my head.
Here's the problem pictorially, I need to calculate the two variables in red text (with light blue background) where Radius can anything between 1 and "r.Height /2" and r.Width can be anything between >0 and Radius.
The only other thing I can tell you is ther total width of the dark blue rectangle and the % of that width that r.Width represents - I didn't include it in the picture since it didn't seem relevant.
Ultimately I am trying to create a rectangle to use with GraphicsPath.AddArc.
Question: I need to draw pictures as below in C#/VB.NET Draw ishihara-transformations (circles in circle without intersection)?
Note that my problem is NOT drawing circles in C#.
My problems is drawing them without much whitespace and without intersection.
My thought would be using "Orbits" and then draw the circles with center on the "orbit" lines. (with some orbit lines for bigger and some only for smaller circles)
what i need to do is open a txt file, read line by line, decode each line into an array and display. Now all works ok apart from one line.
sTextLine = objReader.ReadLine() <-- Value of string cannot be converted.
full code here
-------------
Dim objReader As New System.IO.StreamReader(sOpenFile.Text)
Dim sTextLine As New ArrayList()
Dim sText As String = ""
Dim i As Integer = 0
[code]....
how to read text from a listbox line by line and put current line in a label?
View 3 RepliesHow would i go about reading a file Line by Line that within that line The values are delimited by " Example of the data:
"bob" "cat" "1243"
"steve" dog" "6789"
I've started this with this code but not sure how to go about the next stage:
Using MyReader As New _
Microsoft.VisualBasic.FileIO.TextFieldParser(My.Application.Info.DirectoryPath & "Records28112011.jd")
MyReader.TextFieldType = FileIO.FieldType.Delimited
[code]....
I am trying to read in a TextBox line by line and take the first 7 characters of each line and output everything in another TextBox.This is what I have so far.
Dim line, lines() As String
lines = TextBox1.Text.Split(Environment.NewLine)
Dim i As Integer = 0
[code].....
i need the app to preview the line in textbox in timeintervalof 1 s (can be change)nd when it will reach to the end it close the text file and andreread it after let say 1 m ..
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim myStream As Stream = Nothing
[code].....
a user copies multiple lines of text (say, from an email) into the clipboard. Based on my observations, when one tries to paste the text into a single-line textbox, only the first line is actually pasted in. (I am aware that the "obvious" solution would be to set the Multiline property to True, but there are reasons I am looking to avoid this and to put multi-line data into a single line.)
In the TextChanged event handler, I wrote code that parses the clipboard data to successfully convert it to a single-line, comma-delimited format.
Private Sub txtMassTrackingNo_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) _
Handles txtMassTrackingNo.TextChanged
[Code].....
Is there a way to show the line number of the line of code that caused an exception within a Try...Catch block?
View 5 RepliesI'm trying to read a file line by line into an array but It skips the item at index:3 I have it msgboxing just to make sure and it wont even touch it.
Dim Btn As Button = DirectCast(sender, Button)
Dim path As String = Application.StartupPath & "Libraries" & Btn.Text.Replace(" ", "_") & ".ipt"
Dim i As Integer = 0
Dim lines As String() = IO.File.ReadAllLines(path)
[code]....
How do i read through a textfile line by line checking for and removing duplicate values?
View 1 RepliesI'm having trouble with reading a .txt file line by line, converting it into a string, then putting it into a listbox. When I execute I get an error saying "IndexOutOfRangeException was unhandled" Here is my
[Code]...
i would like to store contents from a text file line by line to arrays before copying them to another text file. what i have is currently like this:
[Code]...
Currently I'm only able to store the whole content into one variable, would like to store the content line by line in arrays.
Is there an easy way to consume xml to access any of the nodes directly without reading line by line?Here is a sample set of the xml working with. It contains two records of data. I am trying to find a way to load it so if I wanted to get say PostalCode and say Site SID value quickly.
HTML
<?xml version="1.0" encoding="utf-8"?><MainSite><MainSites Found="201" Returned="20" Status="0"><Site SID="123456"><Relevance>0.985</Relevance><Title>JDoe</Title><DateModified Date="2010-01-29T01:05:00">1/29/2010</DateModified><DateCreated Date="2010-01-29T01:05:00">1/29/2010</DateCreated><PersonalData><Confidential>0</Confidential><Name><First>John</First><Middle>
[code]....
i have three textbox in my program
How do i update my textbox3 Data like this
textbox3 line1 = textbox1 line1 + textbox2 line1
textbox3 line2 = textbox1 line2 + textbox2 line2
textbox3 line3 = textbox1 line3 + textbox2 line3
textbox3 line4 = textbox1 line4 + textbox2 line4
textbox3 line5 = textbox1 line5 + textbox2 line5
I am using WebBrowser1.DocumentText to get a websites source code, and then parse a string. I am trying to view the source line by line, and doing it as follows:
[Code]...
However what is displayed is each character from the source code, rather than the line. I am making the client log into a website, and the needed value from the source code is then parsed, so I need to use the WebBrowser type to get the source code.
I have a picture in my picturebox. In that picture, I need to draw a straight line between two points and calculate the length of that line (probably in pixels). Is there any suggestion how to do it?
View 2 Replies