I am looking for a way to be able to export a beizer-curve (a curve like in the example below)from my app to a DXF-file.What I need is a way to calculate the control-points and parameters that DXF-format requires (format as in link below)
View 11 RepliesI am drawing an arc within a square or a polygon with the maximum possible radius inside.When the arc is drawn within the boundary of the square or polygon,the arc length will intersect at few points on the square or polygon.How to find the coordinates of the intersecting points of arc at the periphery of the square/ polygon?
View 2 RepliesI'm working in .net 2005. I have a collection of points and I'm creating a polyline with them; however, I need to curve fit them so that they appear to be some what straighter.
If you look at my picture, you can see the blue dots represent the points and the red line is a represenation of how I'd like the final results to be. (Basically, I need to line to appear straighter and less jaggedy looking than it is now).
I didn't know if I should try to see if there's some plug-in for doing this or if vb.net has anything I could use to do this myself.
The picture is a graphicspath drawing a curve through the specified green dots... the red points are the Bezier points that are auto generated by the graphics path.
Basically I want to pass in an array of points (in this case the green dots in the pic) and get an array back of the Bezier (red points) - I want to calculate the location of these points MANUALLY - and not use the graphicspath object to work it out.
It doesn't have to be exactly the same just similar.
How do I curve the edge of a User Control?
View 1 RepliesI have data in data table like below.
I am trying to make graph like below using asp.net chart control (made graph in excel with some test data)
points are X and Y values. lines are linear, exponential, logarithmic and power values.
So how can I make this chart in asp.net (vb.net or c#)?
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 am using datatable.comput to calculate the avg of a data column. The data column's datatype = integer, so it returns a integer avg value as well. Can i make it to return double value?
View 3 Replieshow can i get the points which make a polygon from a region which was derived from the polygon's points?
View 1 RepliesI've spent all day and most of yesterday trying to find how to: 1. Detect if my printer is busy, because my code tells the printer to print more pages than it can cope with, so I need to delay the command for 'Print the next page' until the printer has finished printing the previous one.
2. Shift the output to my printer so that it gets printed in it's entirety on the paper, in stead of seemingly being anchored to some nebulous point on the A4 page. It starts printing at X = 29mm from the left edge, and Y is 28mm from the top, and stops at X = 22mm from the right edge and Y stops at 22mm from the bottom edge, leaving (aprox) 50mm of X and 50mm of Y unprinted.
3. Get useful information on Bounds, which I'm fairly certain is what I need to control where my printing should start and finish.I've hunted through this forum, MSDN, 'Help' (a misnomer if ever there was one) the VB Library and searched through one or two other forums, which either baffle me with reams of pretty much irrelevant code or suggest code to try which either just don't work or which don't declare all the variables and usually don't suggest what type of variable I need, it's all very frustrating.
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I want to know are you have trend view control.Each second I receive temperature value, I want display the temperature curve (trend graphics).
Are there have existing control to use? If not, how can I achieve this.
i can receive datas form serialport, but i want to draw a curve realtime use these data. so
View 6 RepliesI need print a curve of real time on the printerx 820G printer.I must use API LineTo to print the curve.
View 2 RepliesI have a large set of latitude and longitude coordinates from a GPS which, when plotted, creates a 'jerky' line over time. I would like to 'smooth' this line into another set of coordinates which I can then plot to make the track more 'smooth'.
I may need to add more intermediate coordinates to do this. I just wondered if there are any code snippets out there or even MS Excel functions
We learned How to assemble an input/output control board that would connect to your serial port. We were able to use out statements (back in the old gwbasic) to send output signals to the parallel port to turn on/off different outputs. The board had connections where you could connect lights, relays, etc, and had connections where you could attach switches and sensors.
I have been looking for something simple that I can manipulate in my programs. I already have an ActiveHome X10 interface which includes an activex for receiving and sending x10 signals (home automation, turning lights on/off, etc.). I want something that I can straight out connect relays to, and sensors as well. I don't want something that connects to the serial port since that is already being used up, the parallel port would work fine, or even better usb.
Is it possible to control the output font that is pasted from the clipboard?
The text copied into the clipboard is from a string variable and does not have any font information tied to it.
how do i control the volume level that the speakers output?
View 4 RepliesI'm a really new programmer, teaching myself VB .net
Basically I need user input text from fields in a panel assembled and some parts formatted ( basically italic) and displayed in text box. Really the same as MS Word dose for citation references, then it displays the input correctly.[code]...
I am trying to get the output of a CMD command attached to a RichTextBox control. For this sample, I am using the PING command. It works but unfortunately not the way I want it to. Instead of 'appearing' in my RichTextBox line by line, it waits until the entire process is completed and then it attachs it to my RTB.
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I'm in the process of switching my application from MSSQL to MYSQL. When I was using MSSQL, I retrieved the last auto increment value via
Private Sub dsImpoundInformation_Inserted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs) Handles dsImpoundInformation.Inserted
_impoundId = e.Command.Parameters("impoundId").Value
End Sub
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ultimately, I'm just trying to get the last auto increment value but there are other sections of my code in other applications that I plan on switching to MYSQL that depend on output parameters. I have't yet explored using stored procedures but at this time I would like to get this to work in a similar fashion to how I had it with MSSQL.
trying to write a simple app that queries an access DB based on date .. the SQL looks like this and works fine with a date hard wired into the select:
SELECT Terminal_ID, SUM(Transaction_Quantity) AS Total
FROM tblTransaction
WHERE (TransactionType_ID = 3) AND (Transaction_DateTime > #1/1/2009#)
GROUP BY Terminal_ID
On the main form I have a monthcalendar control named 'FromDate' and a DataGridView control that shows the SQL results.
How do I get the user's selected date incorporated into the SQL statement that returns the results in the datagrid?
Something like:
WHERE (TransactionType_ID = 3) AND (Transaction_DateTime > Fromdate)
...but obviously there's much more to it.
I am trying to write a function in VB.NET that takes a value and returns it's y-position on a Bell Curve.
View 4 RepliesWrite a program to analyze a list of grades to determine the number of A's, B's, C's, etc. after applying a curve percentage selected by the user. When the form loads it should contain all the grades and available curves in the list boxes on the left. The user selects a curve and clicks the "Apply Curve" button. The program should display the curved grades (based upon the selected curve) and the grade distribution in the list boxes on the right?
View 1 RepliesHow hard would it be to graph a curve of a function in a VB form.
Attached is a graph from excel which is exactly what I need to do.
I have the function of some fluid properties and I'd like to choose a min and max temp then have the function graphed, with temp as the x and the fluid property as the y which would auto scale to fit the curve.
Actually now the program i have to return the properties at one temp is just a GUI front end to call a fortran program to return the properties so actually if I just use that it'd be graphing points and not directly from the function. I can always make it completely VB based if graphing from a function is easier than points. It'd be a slight pain to rewrite all the code for the functions though.
I am trying to write code in vb.net to find a equation when data points are given. For example (1,5),(2,6) etc. I need to find a equation(not necessarily always linear) from the given points. How do I calculate a trendline for a graph? How to get equation.
View 1 RepliesHow to make a color curve adjasment for editing colors of an image?I found a C# project on Mr.SkyDrive but the problem is the coloring adjasment, because the coloring adjasment wasn't as other programs adjasment it wasn't correct if you view the image closely you will see some red, pink, and green pixels: (the curve like this must make the image negative)
View 20 RepliesI have several points where I draw a curved line from point to point using:e.Graphics.DrawCurve(p, theArrayOfPoints)Was wondering is it poss to draw text starting from the 1st point that followed the curve? This way the text bends.
View 14 Replieshow to make a polynom curve in VB.net?I need to take let's say 10 values and make it to a 2 order curve and extract the coeffiecients (A B C).
View 1 RepliesI am executing this validation summary program in Visual web developer 2008 express edition, found the validation summary property is not visible in output.
<div><asp:ValidationSummary ID="sum1" runat ="server" ShowMessageBox="false" HeaderText="You details cannot be processed due to following errors:" DisplayMode="BulletList" ShowSummary ="true" Font-Names ="arial" Font-Size ="12"></asp:ValidationSummary>
<asp:CompareValidator ID="cmp1" runat ="server" ControlToValidate ="txtname" Display="Dynamic" Operator="DataTypeCheck"
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I have a visual basic .NET application that starts up a command prompt window using the following method:[code]The bat file then goes on to start up an application, which has a lot of output to the command prompt.I was wondering if there was any way to pipe the output of the bat file to a visual basic control. I am trying not to modify the bat file, if I can help it.
View 9 Replies