Find The Points Of A Part Of Image?
Jul 7, 2009It is possible to find the points of a part of image example, do I have a photography of a castle where there is a flag, manage to find where is the flag positioned to runtime?
View 4 RepliesIt is possible to find the points of a part of image example, do I have a photography of a castle where there is a flag, manage to find where is the flag positioned to runtime?
View 4 Repliesfind the angle between two points: Point(0,0) and Point2(26,79)
View 10 RepliesFind Gradient and Angle from 2 Data Co-ordinates.
Trying to find the gradient and then the angle.
The program will open a text file and the program will do its stuff.
The text file will be like: I have 2 co-ordinates (X, Y) just contain numbers.[code]...
i have a image with four squares evenly spaced out. I want a picturebox's image to be one of the squares at a time so it's like a animation except it's only one image.
View 7 RepliesI'm using Visual Basic 2006 and i'm a newbie so excuse me if my question is not complete. I basically have a picturebox, in which i am displaying an image from a webcam. Now the user clicks on two points on the image and i need to get the distance between the two points in terms of the number of pixels. I did think of and try the pythagorean theorem, but i'm confused as to what units the answer turns out in. Is it in terms of inches? or pixels? Do i need to set the Scale Mode propety to pixels to get it in pixels? And if so, is there a way to get the number of pixels per inch? Sorry for asking so many questions but i've been reading other forums and i'm confused!
View 12 RepliesOn forms size and such, is it in points or pixels? I'd assume pixels, however, it seems when i make a image that is in the same size, (i put the size as the dimensions for pixels), the image seems not the same size. I'm unsure of how big a "point" is, but i am aware of a pixel.
View 7 RepliesBelow is some code. Note the comment "SOULD BE -1" If I make it -1 I get the message that I'm trying to write into protected memory.
Not on all images but a few that I tested.It appears that inBitmap.Height points to non-image data.
1)Can you tell me what is wrong and how to fix it?
2)Or how to test so I don't crash.
[Code]...
I know the use of colormatrix. but this work on the whole image. is there any way to work with colormatrix only a part of image rather than whole image.
eg i want to give the brightness of only border area of image.
i am working with c#.
i am trying to locate the id of a field using the binding source, if i type the full id, it is locating it successfully no problem, but that is not what i want, i want to type 3 digits of the end of the id and be able to still locate that record. i triedusing wildcards with it "%" with no success any suggestions?
View 2 Repliesi need to extract a part of a given textfile, which is located between a start character pattern and a end character pattern, e.g.:
this is my textfile
[start]
and this i want to extract
[code]....
There a dictionary object that gets loaded with the following key values:
[Code]...
In most situations, life is good and all the individual key values are needed/unique. But in certain situations, the keys with letters behind them (ie...189a, 189b, 189c) all mean the same thing (ie...189). So I need a way to see if a key value exists (like the containskey method) for only the first part of the key and then return true.
Dim MainHwnd As IntPtr = FindWindow(Nothing, "NameOFtheSoftware - Trial Version (0 days)")
'MenuClick(MainHwnd, CType(2, IntPtr), CType(0, IntPtr))
I am using the name of the window to do the clickingaction, But the software is a trialversion and changes the days amount. So how to make it that it doesnt need to find the whole windowname, but just a part of it.For Example: NameOFtheSoftware
File create error, not sure why?
Private Sub createStream()
Dim i As Integer
Dim j As Integer
Dim s As String
[code]....
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 want to find the values from a number of dropdown and textbox controls inside a repeater control.
db.ConnectionString = SystemConnString
db.Open()
Dim selectedAdTitle As String = ""[code].....
AdTitle and AdFullName dont seem to be bringing across the values. There is no error so they have found the control ok. Below is the ASPX file code.
<asp:Repeater ID="myRepeater" runat="server">
<ItemTemplate>
<asp:DropDownList ID="AdTitle" runat="server">[code]......
I am having trouble uploading any file to the path in the error message below. Does anyone have any idea what the problem is. I did some research on this and most sites say that the permissions need Read/Write access for the asp.net user. I tried this and I still receiver the error. Here is the error:
For example Error saving file education_calendar.pdf System.IO.DirectoryNotFoundException: Could not find a part of the path "d:inetpubaophaUploads". at System.IO.__Error.Here is my code for the click event. I am not sure what is happening here:
Private Sub cmdUpload_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdUpload.Click
If IsPostBack Then
Dim MyFileColl As HttpFileCollection = Request.Files
Dim MyPostedMember As HttpPostedFile = MyFileColl.Get("File1")
[Code]...
I am having trouble uploading any file to the path in the error message below. Does anyone have any idea what the problem is. I did some research on this and most sites say that the permissions need Read/Write access for the asp.net user. I tried this and I still receiver the error.
Here is the error:
For example Error saving file education_calendar.pdf System.IO.DirectoryNotFoundException: Could not find a part of the path "d:\inetpub\aopha\Uploads\". at System.IO.__Error.
Here is my code for the click event. I am not sure what is happening here:
Private Sub cmdUpload_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdUpload.Click
If IsPostBack Then
Dim MyFileColl As HttpFileCollection = Request.Files
Dim MyPostedMember As HttpPostedFile = MyFileColl.Get("File1")
[Code] ......
I have to match string like "DAY1","DAY2","DAY3"....."DAY31" with regex in vb.net. I tried something like this - ^?DAY(0[1-9]|[12][0-9]|3[01])$ but it did not work.
The pattern should have succesfull match if the source string is either DAY1 or DAY2 or DAY3 to DAY31 like so.
i have the following code
Dim url1 As String
url1 = "www.google.com" & GWP_NodeList.Item(i).SelectSingleNode("icon").Attributes("data").InnerText
Dim webClient As New System.Net.WebClient
Dim bytes() As Byte = webClient.DownloadData(Url)
[code]....
I get this error:
Could not find a part of the path 'D:UsersGlenn RuysschaertDocumentsVisual Studio 2008ProjectsUITestUITestinx86Debugwww.google.comigimagesweathersunny.gif'.
How on earth did it all of a sudden add the startuppath to my url?
Does anyone know How can I for example make if user clicks one one half of the picture box it will msgbox left side and vice versa?
View 2 RepliesI have an image in a picturebox that changes, and the background of the image is ls always the same. is there a way I can change the background of the image? Here is the picture, or at least one of them.
The white background behind the character is what I need to remove. How can I replace certain colors of pixels with another color?
I have an xml file I parse to get a path to some other xml files that I then want to parse and read values from. I am fine to get the path from the first xml document and fine to parse the subsequent documents.Where I am struggling is implementing the path. It is being stored using system level variables like:
%appdata%my_appconfig
When I try open the file like this:
xmlConfig.Load(userConfigFile)
It tries to start in the application working directory - assume c:emp So the error message I get is:
Could not find a part of the path 'C:emp\%appdata%my_appconfighive.machine.xml'.
Is there a way I can use this pathing structure in my VB code or determine the actual fully qualified path programatically?
How I can compare a gif image I have with a certain part of the screen. For example lets say I have the gif for the Close window button (top right hand of the window incase your confused). I would want the program to check the top right hand of the screen in the exact coordinates and see if the pixels match. if so return a variable true.
View 7 RepliesI want to be able to:
1) save the screen as an image
2) use this image and search for a smaller image inside of it (pixel sequence)
Basically, I need the program to detect when an image comes onto the screen.NOT a pixel color at a certain coordinate, it is similar to this but instead of one pixel, it should detect multiple ones.is there any way I can put the image I want to detect in a picturebox, and it will go look at that image and keep checking to see if it exists on the screen?I have it working for pixel detection (only 1 pixel), but it isn't very reliable as there could be many other instances of this color on the screen.
I've got an unusual request. I have an image that will always have bounds that are of Base 2 (2, 4, 8, 16, 32, 64,...) in both dimensions. I need to know if there's a way that I can get a small 16 x 16 square (or smaller, still of base 2) portion of the image. I'm planning on overlaying a grid on this image that way the user can select a portion of it and then the program creates a dynamic image from the selected grid square to use. Is this possible to do? I did a quick search on the Image class and didn't see anything that stood out. Note: This is for framework 2.0, but not picky about jumping to 4.0 if necessary.
View 8 RepliesI have a form which shows a graph which was made in Microsoft Chart control 6.0...
I have placed a option in the menubar which will export the graph made to an image file...
Can some one tell how to export the graph part of the form as a image (any format will do)...
I was thinking of taking a screenshot and saving it but i cudnt get the controls in vb to take a screenshot of a specified area on the form.
Toolstrip1 has toolstripdropdownbutton1 and some dropdown items are added with this.Now, Iam looking to set the color or marigin part of image dispalyed in toolstripmenuitem.Anyone can show me the details?
View 6 RepliesI'm doing a school project with arrays and I want it so that I input a part number and it outputs a image, price, and name for the part. I need to accomplish this using the array. We've only ever done arrays where you input a part number and one thing comes back out, not multiple.
View 1 RepliesI need to take the image and clip a sliver in the middle and repeat it to make it like the second attachment. (so its 320px wide)i dont need to save the result... I need to cut it in half... then use drawimg to draw the left half, then the center "slice" then the left half.
View 4 RepliesI am developing a web sit using web parts in asp.net and c#. I have one problem, when i drag the web part from one web part zone to another, the image of the web part is still there at the web part zone, utill i drop it at the destination. i want to make that image of web part invisible at drag and drop time.
View 1 Replies