I'm working on a program that will generate and graph random parabolas with integer vertices. I've got a 360n x360 pictureBox set up and used a for-next loop to draw in a grid consisting of 15 x 15 squares. when I plot the generated parabola I get some unwanted lines/curves. I think this is due to the fact that the (0, 0) point of the picturebox is in the upper left corner and the (0, 0) of my grid is in the center of the picturebox. Is there a way to "move" or "set" the pen position to the first point I wish to plot for my parabola without leaving a mark or trail? Or is there something else I can do? I've tried drawing an invisible line before my g.DrawCurve(plotPen point) but when the DrawCurve is executed I still get an extra line.
Private Sub cmdParabola_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdParabola.Click Dim x, xPlot, y, yPlot As Single
I have written a simple script to get a bunch of lines from a text file (they will be filenames eventually) which are split by new lines and puts each one into an array..
Dim ary() As String Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click If My.Computer.FileSystem.FileExists("C:MenuFiles.txt") Then
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The only thing I can do for now is either use the substring function to remove the first character from all array values after 0 but I don't like that because it's messy and what if the split "works" as I want it to one one of the lines and knocks of the first character when I don't want it to.
I have a text file containing lines of data (File 1). I need to delete all the lines in another text file (File 2), which are found in file 1.So I could read file 2 line by line. And then once the line has been read, read file 1 line by line to search for a match. But that's going to be painfully slow.Or I could read file 2 into memory. And then read file 1 line by line and REPLACE the lines in file 2 with nothing, therefore deleting them. File 2 could be 100 mb, so I'm not sure about reading it all into memory.
i have two bezier curves placed at a distance apart in space.curve 1 has control points A0, A1,A2, A3. A0 and A3 lie on curve and are its end points Curve 2 has control points C0,C1, C2, C3 . C0 and C3 lie on curve.and are its end points
i want to join the two curves A and C with an intermediate bezier curve B. the intermediate Curve B has control points A3 and C0 which lie on the curve and are its end points. the intermediate control points B1 and B2 are unknown to me. also the joining should be smooth enough. please help as to how to proceed. have read alot about beziers but dont know how to do this.
I have a cubic bezier curve where the first and last points are given (namely P0(0,0) and P3(1,1)).The other two points are defined like this: cubic-bezier(0.25, 0.1, 0.25, 1.0) (X1, Y1, X2, Y2, also those values must not be smaller or larger than 0 or 1, respectively)Now what would I have to do to get the Y coordinate for a given X, assuming there's only one? (I know that under certain circumstances there can be multiple values, but let's just put them aside. I'm not doing rocket science over here, I just want to be able to get Y multiple times per second to do transitions)I managed to dig up this: y coordinate for a given x cubic bezier, but I don't understand what xTarget stands for., also this is no homework whatsoever, I'm just a bit pissed at the fact that there's no comprehensible stuff about cubic bezier curves on the internet.
I did not really want to create as what i am showing in the second picture. What i actually wanted is to draw a curved (maybe a porsche, ferarri , or a lamboghini). Can i know how to draw curves along the edges ?
i have two bezier curves placed at a distance apart in space.curve 1 has control points A0, A1,A2, A3. A0 and A3 lie on curve and are its end pointsCurve 2 has control points C0,C1, C2, C3 . C0 and C3 lie on curve.and are its end pointsi want to join the two curves A and C with an intermediate bezier curve B. the intermediate Curve B has control points A3 and C0 which lie on the curve and are its end points.
I have followed a tutorial from Zedgraph's wiki but I still seem to be having issues. When I run the code below, only the 3 curves on the Y Axis plot. I know the datasource is correct from which the 4 curves on the second Y axis are being created, because I have checked the table after creation. For some reason, however, the curves do not show up and the Y2 Axis does not change its scale to reflect any new curves. Does anyone see what I'm missing here?
I have an SQL database, and 50 text files, and Visual Basic 2010 Premimum,I need to find a specific line of text in the text files and then take the next 37 lines of text and save them in my database. I need advice as to point me in the right direction
I have code to show I tried to do it on my own, to boot!
Private Sub OpenPetProfileToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenPetProfileToolStripMenuItem.Click Dim AllText As String = "", LineOfText As String = ""
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This save command works perfectly except for the lstshowresults, which I'm having issues getting to appear in the print line bit, but that's for another time.
I just finished my first project. Just wanna ask, with this code:.....
Code: Private Sub PrintDocument1_PrintPage(ByVal sender As System.Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintiTicket.PrintPage e.Graphics.DrawString("COUNTER 17.Your number is " & iTicket, TextBox1.Font, Brushes.Blue, 50, 50) End Sub
I was able to print the text that I want, but is it possible that it be printed in three lines? i mean on the first line, the text "Counter 17", and in the second line with a smaller font size, "Your number is" and on the third line with a bigger font size the "& iticket portion"?
I want to write the richtextbox1.text to a richtextbox but I want to put it in 3 lines, how do I code it without leaving a long empty space before it moves to the next line?Like a paragraph instead of 1 long line I am working with VB 2010 express edition
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As
I am looking to add individual lines of user inputed text into a rich text box. I've been working with .text and .appendtext however I can't assign individual lines of text.[code]...
The general purpose of my application simply reads a line of text for example:
1. I have a printer issue 2. I have a software issue
I have a rule set as follows:
'Define the class 'Printer' with 14 values as a string... Dim Printer(13) As String 'The string 'Printer' gets assigned a value, this is repeated another 13 times... Printer(0) = "Printing"
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The code simply uses a number of keywords to detect if the issue is a 'printer', 'software', 'telephone',. or 'password' problem.I want to apply this rule set to 10 issues within the same rich text box, with the results sent to a text file. The exporting to a text file I can do, however the main issue is, i cannot read the lines individually.
Below is what I've been using. While it does work, my program locks up when trying to count a rather large file, say 10,000 or more lines. Smaller files run in no time. Is there a better or should I say faster way to count the lines in a text file?
how I can add a tree node with 2 lines of text, OR how to add a non-collapsable childnode to an existing child node. Basically my treeview consist of a list of groups, and inside each group is the contacts that belong to that group. Im trying to append a line of text to the existing contact when their status changes to busy, or not available.
example
// Current Contact List // + MyFriends Timmy Frank Bob
What happens when I try to add the child node to the existing child node is it gives me the + sign so it can be collasped! I want the child node to be visible at all times. So it looks like this
I have the following code that displays the last line of my text file: VB Private Sub btnCurrent_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCurrent.Click Dim path As String = "C:Documents and SettingsTwiLiteDesktopWindows Programming - Laura Malave/MadEaters SolutionMadEatersSurvey.txt" Dim readText() As String = File.ReadAllLines(path) Dim s As String For Each s In readText lblResults.Text = s Next End Sub How I can display the last 12 lines of code instead of just the last line.
the question says it all, doesn't it? I was just wondering if it was possible to get only the displayed lines of text in a textbox. (Such as line indexes 1-15, to give an example.)
I am hoping that someone can help me with a problem I've got at the moment using Compact Framework.Net 2 SP 2.At the moment I have a UI with a series of text boxes and each textbox displays the contents of a database field. These are shown one beneath another with a scroll bar on the right hand side of the form. Each textbox has a set width which might.I would like to adjust the height each text box based on the number of lines it is holding, the font size and the font in order to avoid using scroll bars on each textbox.[code]
I want to arrange this lines according to the number in [Txxxx] from small to big then write all the line which not contain[Txxx] at the below of sorted lines. How to do this? is that possible?
Is there a way to see how many lines are in a text file? This also includes blank lines. I have seen a lot of code in this forum before related to my question, but they stop if there is a blank line. I want it to be so that if there are like 10 blank lines
I'm creating a button on my project that when clicked it will enter the information in the comment "" area and store it into the clipboard to be pasted.
My issue is whenever I try to put the multiple lines in the comment field I get a syntax issue.[code]....