I have been learning and developing a software using VB for my company. I seem to have some issues with Chart function. [Code] Those 2 points will plot 2 datas (xval, finvall) & (xval, finvall2). Here is the thing. When I do the plotting, the starting points are always at (0, 0). That points come from the data point collector editor in the series properties. The question is: How do I plot data using the first value that I have? I don't want to start at (0, 0) but instead using (xval, finvall) & (xval, finvall2). I can't change the data point at run time. Many thanks!
I'm just trying to create a graph where the user can input data into textboxes and then plot the data. I am attempting to use Zedgraph, but open to other suggestions. The program below creates a plot, but it won't update when the textboxes are updated.
Imports ZedGraph Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
I'm only getting started with VB.Net, using VB Express 2008. Using the System.Data.SQLite wrapper, I need to read data off an SQLite database file, and chart data using basic bars, pies, lines, etc. Nothing fancy. Which component would you recommend, either open-source or affordable?
my application receive data from serial port and store it in ConcurrentQuequeFor not lost any data from serial port I need to plot it in a separate theadin SummaryForm Load = set all parameter of ZedGraphPulsante Start = Open serial Port and start Thead
I'm currently trying to use ZedGraph to plot a graph based on some data I have extracted from a machine, with reference to a user entered "Frequency" range. I has to be a line graph, with Frequency on the X-axis, and extracted data on the Y-axis. There are 4 channels for the machine, but all data values extracted are close to each other, so multiple Y-axes are not needed. I'm also trying to do it within a class, and the graph should only be drawn when I click "Button3", otherwise there would be no data anyway and button2 extracts the data.
Below are my class (the graph code is at the bottom) and form1, which button3 should call the class, but I'm stuck for both the button interfacing and the class writing. I have also attached the output I get so you can have a look at what I need. Open it in Excel to see the format. The whole program is also attached as a text file if you prefer it that way.
I'm looking for advice to make my code efficient in terms of execution speed and memory usage. Basically, how to lay out my objects. The program displays parts of several data series in bar- or line- charts, as well as calculated series based on these data series. The key user input will be to change what part of data series to look at, and that input should trigger instant chart update, with minimal lag.
I am new to vb and I am required to plot a graph in vb. I need to get data from a text file to plot a polar graph of Wind Direction vs Wind Speed. But opening the file from a text file is in a string format, and when i tried to convert to a double, it gives the error:
Im doing a project with .Net 4.0, Visual Studio 2010 and Visual Basic .Net.I needed to add a Chart (the new one included by default in .Net 4.0) that represents temperatures evolving with time, so I added the drawing points in the elapsed event of the timer every second.The graph is doing somewhat ok, but I need another functionality, and this is, every time I stop the timer, save the graph in an excel (.XLS or .XLSX) file. As by default the chart provides with a collection of the type "System.Windows.Forms.DataVisualization.Charting.DataPointCollection", I would like to know if there is a way to create an xml and put the info of those collections in the excel file.I have looked around but I didn't find any similar example, last thing im thinking about is to use an iterative way to manually write in the excel file, but maybe its too much time consuming as the iteration will be of several thousands seconds.
2.0 Framework.Our software does some measurement and then sends the output to our charting program. Right now it is taking 20-30 seconds for the results to print after our chart has sent the data to the printer since the printer is in sleep mode. What we are wanting to do is send a command to wake the printer at the end of our test, before it sends the results to the charting program, so the printer is (hopefully) done "waking up" by the time the chart program auto prints.
I have been looking around and haven't been able to find anything regarding this. The printer we are mainly using is a Brother HL 5250DN. I have contacted Brother but I have yet to hear anything back from them.
The charting control has disappeared from my toolbox in VS2010. I know it was there when I upgraded to 2010 a few weeks ago. Both chart items are checked in the Choose Toolbox Items dialog but it doesn't show up in the toolbox. I'm pretty sure it was under the Data category. I tried resetting the toolbox but that didnt bring it back.
I have data that are numbers both on x and y and have charted them using mschart 4.0
I need to add a trend line/linear regression to a bunch of points I have. The data on x and y are both numbers (no dates anywhere), for instance (33.4,45.1) would be a point.
In the samples I downloaded from the first link I found a linear regression sample in the code files forecasting.aspx(.cs), and I found this ms documentation
I have added a linear regression line to the chart with the following line (once all other data it setup etc)
The problem with both of these is that they assume dates are used. I went ahead and implemented it anyway, but my regression line starts at around the x value of 20, and will go to an x value of the max x value of one of the points (almost 70) if I give the parameter Period a value of 700. But since it doesn't start at x value 0 I don't trust it is correct.
Possible Duplicate: How to find web hosting that meets my requirements?
I was going to use the asp.net charting with Visual Studios 2008 but GoDaddy hosting does not support the charting cause they won't install the component.So what are my options for charting/graphs for data? Looking for free if possible.
I'm importing some data from MySQL into a VB.NET application with .NET charts. At the moment, the chart is plotting points by date, which means that when you zoom in, each major tick mark simply displays the date.It would be better to change these dates to times (hours) when one zooms in.Presumably there's a parameter to do this, but I can't find it.
I have a chartarea, which take too long to print the data when the count is over 100,000 points. is there a better way to show my data in a graph that is faster?
If I have an X-Y plot on a graphics and I also create a verticle line on the same graphics. I want to move the line cross the X-Y plot without disturbing this X-Y plot.
points on picture box by several mouse down operation, perform either linear regression for best fit straight line for these points or best fit circular curve fitting for these points.User can use radio button to select either straight line or circular curve fitting. Plot the best fit graphic accordingly and save these graphic to a data file (result.txt).
I'm trying to plot a graph in VB.Net, using MS Chart Control. I'm receiving streaming data, distance vs X data (Sine wave) and Z data (Cosine wave) every 1 msec. maximum data points varies from 2000 to 5000. I would like to plot this streaming data on a graph, distance on x-axis and two series X data and Z data on Y axix.
I'd like to be able to graphically represent a position in a 3D graph and be able to rotate the grid to match a certain perspective. I've looked for tutorials online, but they all mention how to import or create common file types. I don't want or need to do this. I just need to know where to begin. I have the DirectX SDK, but I'm not sure where to start with it and need some direction.
i am a newbie to visual basic 2005. i have a excel file contain x value and y value of points.i wan to plot a graph using these few points.after that display the graph in the vb.How can i do that??
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 finally made the switch VB.net and I am using VS2010 .NET 4.0 with WinForms. I want to generate a real time 2D plot with autoscaling and update the graphics/picturebox/form/<insert control here> from another thread so when I click a menu the device doesn't halt. The graphics are intensive in that a function is continually reading from hardware and drawing the data. I have been able to do this in VB6 (minus the multithreading) with GDI API and it ran great. Now in VB.NET GDI+ is used which is extremely slow. So my questions are as follows:
1) Should I go back to GDI commands or will this be outdated soon.
2) Should I use Direct2D, if so do I need to switch to WPF and are there any WinForm examples
3) Best approach to multithread this, if I double buffer can I have the GUI thread periodically read the buffer and display it. How can I tell the drawing thread to post an update and the UI thread displays it when it has the chance, similar to using InvalidateRect()
ive been struggling on this portion of my code for almost 3 days with no luck. i have a database containing a list of transactions (in this case, the product name, quantity and date of sale). I want to plot a graph for each product showing the amount sold each month for the past 12 months. The functions to calculate these values are working fine. but my problem is this:
