i'm building an image library and one of the things i want to do is compare the most common color in a given image to a set of established colors in rgb format the way i'll probably do this is create 3 arrays for the average r,g and b of each given image, and then compare them to my established values for r,g and b that i want to match to so if my first image has the average values of 255, 125 and 5 for r,g and b..what would be the best way to do a nearest match against my pre-established colors? (about 32 in total)
I have a program that will round any numbers I give it regardless of the data type I set (I've tried double and decimal) before it saves into the DB. I'm using MS access for the DB and I've set the data types in access to Numeric Double, Numeric Decimal, and Currency and all with decimal places set to 4 -- all to no avail.
What I do know: 1) The textboxes on the form accept the number value as I enter it and after I hit save the value displayed is the same as the number that I entered. However, once I query the database again for that entry the value has been rounded up/down to the nearest integer (whole number). For example: I enter 1000.50 and hit save. I search for that same entry and the value is saved as 1000. If I enter 1000.51 and hit save then search for the entry it shows the value saved as 1001.
2) I can store the desired value directly into the DB by manually entering it. When I search for that entry from within the program it displays the correct amount. HOWEVER, if I try to change the amount and then hit save I get a concurrency violation.
I think that it may be a setting somewhere in the program that doesn't allow for decimal places but I've search everywhere and I cant find anything.
Am trying to match characters or combination of the characters i specify in any order they appears
vb Regex.IsMatch(teststring "[nuls]")
what i want matched is either any single character, or combination of any of them in any oder. this means that it should not match any character not specified in the pattern.
I have written a program to return the colour of a pixel from an image. The problem I have is I need to return the colour name. Of course not all colours returned will be one of the pre-defined colours (knowncolours), so my question is, is there a way to find the nearest knowncolour which matches the colour of the pixel?
I have looked at GetNearestColour but am confused by its function. It just seems to return the same colour as the parameter passed into it.
For example, how would I get the # "220" from the number "229". Or the number "300" from "309"? The only way I've found to do this is using string stuff, but I'm afraid of the overhead for strings?
getting a formula round off to the next highest .25.example:
2.35->2.50 2.26->2.50 2.24->2.25 2.51->2.75
I can't use the Round function because if I have 2.26 then it will round off to 2.25 which is unacceptable.I have been using the Ceiling function but it rounds it off to the nearest highest integer. Which can add an almost extra kg,lb to my formulas.
I use Mschart to produce charts. What I am trying to get is the nearest data point by where I click on the chart. The problem is that I can't find any connection between the HitTest values and the data point x/y values.Say, I clicked on the following point:
Dim result As HitTestResult = Chart.HitTest(e.X, e.Y)I have now values of X and Y where I clicked. How to associate it with the data point values?
What I want to achieve is to double-click on the chart which would find the nearest data point (x,y as integer) and knowing these values I would be able to recalculate other values based upon where the user needs it and double-clicks.
i got a function that search for database data, is it possible that i make it search the nearest words or keywords? which mean if d name is TEST, n i key in TE then it will show those name wit TEST TESS TSST? [Code]
[code]How can I validate that if 387 mod 2 <> 0 then it should display the nearest double. In this example, it should display 386 which is nearest to 387 and can be fully divide by 2.
I'm trying to round a double to the nearest 5th or 10th number. So far my code looks like this basically:
'Mathamatical equation For Cost to Mow dbCost = (txtArea.Text / dubMetres) + intExclusions * 3 + (intIrregular / 2) Dim dbRounded As Double 'Trying to round to nearest 5 or 10
I have read about Round() and MidpointRounding.ToEven but I still could not figure how to use it to achieve what I want. I have numbers (usually from 5 digit decimal) such 125.36 , 125.10, 125.99. I want to make the 2 decimal point rounded to the nearest 20. Means, the 2 decimal point should be either .00 or .20 or 0.40 or .60 or 0.80 only. 125.36 should be 125.40 : 125.10 should be 125.00, 125.99 should be 126.00 125.54 should be 125.60 and so on Is there math function to make or I should parse the number as text and test the last 2 digit?
Is there any prebuilt items to roundup a number to set fraction size or do I need to build a routine to do this? If I have to build this any thoughts on the way to go about it? I was thinking I need to strip the decimal places and then compare them to a dataset of numbers a make a choice?
I'm doing an assignment for class which is basically a simple program that takes 12 monthly temperatures and averages them. But I also need to round the average to the nearest tenth. I am not particularly good at programming or math and don't know how I would fit this into my code. I am Including My program thus far. I put in bold and italic where the calculation takes place.
Private Sub btnEmterTemperature_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEmterTemperature.Click 'FOR BUTTON CLICK EVENT "ENTER TEMPERATURE"
I'm creating a maths program and when it comes to division it's giving me .34216 as answeres which isn't what I want.I was thinking declaring the textbox the answer appears in as a single.It's not working out though and it's still using decimal points.I was told by my teacher to declare it as an integer so I tried that too, it's not working out also. I figured based on the code, I would be declaring array3() as the single or integer since that's the textbox the answer will be output into. [code]
The window is 600x600, because the game uses a 'grid' of thirty. Each food block is 30x30, and so is each block that makes up the snake. Here is my food making sub:
I'm trying to find a way to force my calculations to round up currency values to the nearest whole pence/cent.By default, rounding will round to the nearest pence/cent, whether this is up or down.I need it to always round up regardless.[code]My client's back office system rounds in this manner which is rather peculiar to say the least, however the prices on his website need to match and to to this they need to be rounded up.The built in ASP.NET Math.Round function only offers the regular rounding(and banker's rounding) and not an option to force rounding up or down.
ive got some simple problem i cant understand how to solve.
str(1) is an array and integer(or double, tried both) a(1) is an array and integer (or double, tried both) a(1) = a(1) + 1 Label1.Text = str(1) + a
the big part is where i get: operator '+' is not defined for types 'integer' and '1-dimensional array of integer'.why do i get that message and what does it mean? how do i make the code do what i want?
I'm trying to create a linked list of an array of integers. Why is the following implicit conversion required?
When I run the code that contains that conversion, I get the following error.
As a real-time data acquisition user control data (a packet of an array of bytes) arrives every second, is converted into an integer array and inserted into a linked list.
The most recently arrived data is painted as coordinates on a grid at the right of a PictureBox using Graphics.DrawLine (pen,X1,Y1,X2,Y2).
The oldest data (arriving 120 seconds ago) will be drawn at the leftmost portion of the Picturebox.
Why a linked list rather than a list? To display 120 views of time sequence data, the draw routine the most recently inserted node to a node that points to Nothing. How do I limit the length of the linked list to 120 nodes and always ensure that the last node points to Nothing?
Do While Not item Is Nothing item = item.NextItem Loop
I am a newbie in VB and I got a piece of code which can display the current running program. I need to use that in VB2005 and I got the below error message. Can anyone help how to fix it?[code]
I'm trying to convert a VB6 project to .NET, but I get problems with some callback functions, and the following message comes up: "AddressOf' expression cannot be converted to 'integer' because integer is not a delegate type" I've seen several solutions to similar problems like this, but I am not able to understand this issue with delegates.
After the conversion, the code look like this:
Declare Function vsmsgwSetDataPackageCB Lib "vsmsgwW.dll" (ByVal PACKAGE As Integer, ByRef arg As Integer) As Integer Dim arginitP As Integer
[Code]...
Which gives the error: Method 'Public Function PackageCB(HisNodeID As Integer, ByRef data() As Byte, ByVal length As Integer, ByRef arg As Integer) As Integer' does not have the same signature as delegate 'Delegate Function DelegatePackageCallback(hwnd As Integer, lparam As Integer) As Integer
I have a LINQ2Entity problem, I want to get the value, string, from a database, so I select FProducts.Serial_number, and to end the query, I do .ToDictionary. The problem is, it tells me that it doesn't have sufficient parameters, to convert ToDictionary. So I need something like select FProducts.Serial_number, Nothing). ToDictionary. Also FProducts.Serial_number, 0).ToDictionary doesn't work.
Sub GetStatistics(ByVal ProductNumbers As List(Of String), ByRef Passed As Integer, ByRef FailedProducts As List(Of String)) Passed = 0 FailedProducts = Nothing
this is for a BINGO game final project that I already turned in but this just bugged me that I could not get the sorting figured out. I am trying to get this to sort the random numbers in to columns under the correct letters but I keep getting the error Operator '>=' is not defined for types '1-dimensional array of Integer' and 'Integer' under the line:
