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  • How do I overlay text on an image who's size is to be set?

    - by Mike
    I am trying to make a bar chart using tables, which I have almost accomplished to my liking. The last step I want is text over my image which represents the bar. Here is the code I have thus far for building my little bar charts: $height = 50; //build length $width = 450; $multi = $brewAvg / 5; $width = $width * $multi; print " <tr > <td > $count. <a href=\"$breweryURL\"> $brewR</a> </td> <td > <img src=\"blueBar.png\" width=\"$width\" height=\"$height\"> </td> </tr> "; And this produces something like this: You can see in the code how I simply calculate the length of the bar based on a breweries rating. What I want to do next is have the rating number show on top of each breweries on the left hand side. How would I go about accomplishing this? Update: I tried a tutorial I read here: http://www.kavoir.com/2009/02/css-text-over-image.html and I changed my code to this: print "<div class=\"overlay\"> "; print " <tr valign=\"middle\" > <td > $count. <a href=\"$breweryURL\"> $brewR</a> </td> <td > <img src=\"blueBar.png\" width=\"$width\" height=\"$height\"> </td> </tr> "; print" <div class=\"text\"> <p> $brewAvg </p> </div> </div> "; And my css I added was this: <style> .overlay { position:relative; float:left; /* optional */ } .overlay .text { position:absolute; top:10px; /* in conjunction with left property, decides the text position */ left:10px; width:300px; /* optional, though better have one */ } </style> And it did put any of the value son top of my images. All the text is in a list above all the bars like this:

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  • Creating a series of vectors from a vector

    - by bluetongue
    I have a simple two vector dataframe (length=30) that looks something like this: > mDF Param1 w.IL.L 1 AuZgFw 0.5 2 AuZfFw 2 3 AuZgVw 74.3 4 AuZfVw 20.52 5 AuTgIL 80.9 6 AuTfIL 193.3 7 AuCgFL 0.2 8 ... I'd like to use each of the rows to form 30 single value numeric vectors with the name of the vector taken from mDF$Param1, so that: > AuZgFw [1] 0.5 etc I've tried melting and casting, but I suspect there may be an easier way?? Thanks in advance BT

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  • saving an image object in sql server database from action method

    - by user3532152
    [HttpPost] public void Test(HttpPostedFileBase file) { UsersContext db = new UsersContext(); byte[] image = new byte[file.ContentLength]; file.InputStream.Read(image, 0, image.Length); CrimeReport i = new CrimeReport { ImageId=1, ImageName="Anjli",ImageContent = image, Active=true }; db.CrimeReports.Add(i); db.SaveChanges(); } I am getting an exception on db.CrimeReports.Add(i);

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  • Get frames from the video saved in the photo directory iphone?

    - by Ballu
    HI All. how can i get the frames of any video that i am fetching from the photo directory iphone .I checked out various links but they only provide any thumbnails or any particular TIME's frame image but i need the frames of full length video .And the respective audio too then is that possible that from the freames i got and the audio file i can create another video but will change the sequence of the frames only the audio file will be the same in the video.Is that feasible .? Sample code or link will be more helpful !!! Thanks, Balraj,

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  • Cannot get document.getElementByID to work

    - by user1804234
    The following function doesn't work for some reason. Can someone see what the problem is? function checkMaxLen(txt, maxLen) { var actualLen = txt.value.length; var remain = maxLen - actualLen; document.getElementById('remainChar').Value = remain; } <input type="text" id="remainChar" runat="server" value="500"/> Whenever I try to run the function, I get this error: Microsoft JScript runtime error: Unable to set value of the property 'Value': object is null or undefined

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  • Is it a good practice to have trim in setter?

    - by zibi
    I'm doing a code review and I noticed such a code: @Entity @Table(name = "SOME_TABLE") public class SomeReportClass { @Column(name = "REPORT_NUMBER", length = 6, nullable = false) private String reportNumber; ..... public String getReportNumber() { return reportNumber; } public void setReportNumber(String reportNumber) { this.reportNumber = StringUtils.trimToNull(reportNumber); } } Every time I see trimming inside of a setter I feel that its not the clearest solution - what is the general practice with that issue?

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  • How to stop the windows XP timer?

    - by MLB
    Hi guys: I am trying to stop the windows XP timer, and actually I did it. The problem is that I want to do it using another way, not the one used before: running a visual basic script. I need to stop it using a knoppix, or a floppy disk... maybe any other way that I don't know it. Please, how to stop the timer without using a simple script? I am sorry about my English.

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  • Passing a bool condition to method which I can invoke when I need

    - by dotnetdev
    Hi, I need to pass in a predicate which I can invoke whenever I want (just like a delegate). I am trying to do something like this (I thought Predicate delegate would meet my needs): MyMethod(Predicate,string pred); Called like: MyMethod(s = s.Length 5); I want to write the condition inline BUT invoke it when I want, just like a delegate. How could I do this? Thanks

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  • Using jQuery :contains selector

    - by Alex
    Hello there, I have a div with id kGrowl and inside that div I have a select element with name = mover. I try to use this selector: $('#kGrowl:contains([name=mover])').length But it is currently returning 0. How is my selector wrong? Thanks.

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  • Load HTML NSString into a UIWebView

    - by ehenrik
    Im doing a project where I connect to a webpage using the NSURLConnection to be able to monitor the status codes that are returned (200 OK / 404 ERROR). I would like to send the user to the top url www.domain.com if I recieve 404 as status code and if i recieve as 200 status code I would like to load the page in to a webview. I have seen several implementations of this problem by creating a new request but I feel that it is unnecessary since you already received the html in the first request so i would just like to load that HTML in to the webView. So i try to use the [webView loadHTMLFromString: baseURL:] but it doesn't always work, I have noticed that when i print the NSString with html in the connectionDidFinnishLoading it sometimes is null and when I monitor these cases by printing the html in didReceiveData a random number of the last packets is NULL (differs between 2-10). It is always the same webpages that doesn't get loaded. If I load them to my webView using [webView loadRequest:myRequest] it always works. My implementation looks like this perhaps someone of you can see what Im doing wrong. I create my first request with a button click. -(IBAction)buttonClick:(id)sender { NSURL *url = [NSURL URLWithString:@"http://www.domain.com/page2/apa.html"]; NSURLRequest *theRequest = [NSURLRequest requestWithURL:url] NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; if( theConnection ) { webData = [[NSMutableData data] retain]; } else { } } Then I monitor the response code in the didReceiveResponse method by casting the request to a NSHTTPURLResponse to be able to access the status codes and then setting a Bool depending on the status code. -(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { NSHTTPURLResponse *ne = (NSHTTPURLResponse *)response; if ([ne statusCode] == 200){ ok = TRUE; } [webData setLength: 0]; } I then check the bools value in connectionDidFinnishLoading. If I log the html NSString I get the source of the webpage so i know that it isn't an empty string. -(void)connectionDidFinishLoading:(NSURLConnection *)connection { NSString *html = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding]; NSURL *url = [NSURL URLWithString:@"http://www.domain.com/"]; if (ok){ [webView loadHTMLString:html baseURL:url]; ok = FALSE; } else{ //Create a new request to www.domain.com } } webData is an instance variable and I load it in didReceiveData like this. -(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [webData appendData:data]; }

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  • Is it possible to unpage all memory in Windows?

    - by Hack59
    I have plenty of RAM, however, after starting and finishing a large number of processes, it seems that most of the applications' virtual memory has been paged to disk, and switching to any of the older processes requires a very long time to load the memory back into RAM. Is there a way, either via Windows API or via kernel call, to get Windows to unpage all (or as much as possible) memory? Maybe by stepping through the list of running processes and get the memory manager to unpage each process's memory?

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  • Indexing on only part of a field in MongoDB

    - by Rob Hoare
    Is there a way to create an index on only part of a field in MongoDB, for example on the first 10 characters? I couldn't find it documented (or asked about on here). The MySQL equivalent would be CREATE INDEX part_of_name ON customer (name(10));. Reason: I have a collection with a single field that varies in length from a few characters up to over 1000 characters, average 50 characters. As there are a hundred million or so documents it's going to be hard to fit the full index in memory (testing with 8% of the data the index is already 400MB, according to stats). Indexing just the first part of the field would reduce the index size by about 75%. In most cases the search term is quite short, it's not a full-text search. A work-around would be to add a second field of 10 (lowercased) characters for each item, index that, then add logic to filter the results if the search term is over ten characters (and that extra field is probably needed anyway for case-insensitive searches, unless anybody has a better way). Seems like an ugly way to do it though. [added later] I tried adding the second field, containing the first 12 characters from the main field, lowercased. It wasn't a big success. Previously, the average object size was 50 bytes, but I forgot that includes the _id and other overheads, so my main field length (there was only one) averaged nearer to 30 bytes than 50. Then, the second field index contains the _id and other overheads. Net result (for my 8% sample) is the index on the main field is 415MB and on the 12 byte field is 330MB - only a 20% saving in space, not worthwhile. I could duplicate the entire field (to work around the case insensitive search problem) but realistically it looks like I should reconsider whether MongoDB is the right tool for the job (or just buy more memory and use twice as much disk space). [added even later] This is a typical document, with the source field, and the short lowercased field: { "_id" : ObjectId("505d0e89f56588f20f000041"), "q" : "Continental Airlines", "f" : "continental " } Indexes: db.test.ensureIndex({q:1}); db.test.ensureIndex({f:1}); The 'f" index, working on a shorter field, is 80% of the size of the "q" index. I didn't mean to imply I included the _id in the index, just that it needs to use that somewhere to show where the index will point to, so it's an overhead that probably helps explain why a shorter key makes so little difference. Access to the index will be essentially random, no part of it is more likely to be accessed than any other. Total index size for the full file will likely be 5GB, so it's not extreme for that one index. Adding some other fields for other search cases, and their associated indexes, and copies of data for lower case, does start to add up, which I why I started looking into a more concise index.

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  • Passing data to notification page

    - by FRKT
    I'm not sure what the best way of populating a notification page is. I've been using sessions to populate it with information, but this falls short if the user is blocking cookies. I've considered passing it in HTTP GET variables, but I'm unsure whether it's a good alternative since its length is limited by some browsers. Which method do you prefer?

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  • unique substrings using suffix tree

    - by user1708762
    For a given string S of length n- Optimal algorithm for finding all unique substrings of S can't be less than O(n^2). So, the best algorithm will give us the complexity of O(n^2). As per what I have read, this can be implemented by creating suffix tree for S. The suffix tree for S can be created in O(n) time. Now, my question is- How can we use the suffix tree for S to get all the unique substrings of S in O(n^2)?

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  • How to validate if all check boxes are ticked in jQuery?

    - by Jude
    I am a beginner in jQuery and I was wondering how to validate the form before submission specifically for check boxes. I am creating a simple check list form where my user would tick a check box if he finished that step. What I am planning to do is that, the script would prevent the form submission if there is an "unticked" checkbox and highlight it with a color. Here's my code : <!doctype html> <html> <head> <meta charset="utf-8"> <title>checkbox</title> <style> .error { background-color:#F00; } .valid { background-color:#0F0; } </style> <script type="application/javascript" src="http://code.jquery.com/jquery-1.8.2.min.js"> </script> <script type="application/javascript"> function validateAll() { $(".tick").change(function(){ if ($('.tick:checked').length == $('.tick').length) { $('#container').removeClass(); $('#container').addClass('error'); } else { $('#container').removeClass(); $('#container').addClass('valid'); } }); } </script> </head> <body> <div id="container"><input class="tick" id="option1" type="checkbox"></div> <div id="container"><input class="tick" id="option1" type="checkbox"></div> <input id="button" type="button" onClick="validateAll();" value="check"> </body> </html> So what I am trying to do here is when the user clicks the button, the script will highlight all the unchecked check box with red and highlight all checked with green. However, my script is not functioning. What is wrong with my script? Any suggestions on a more efficient way to do this?

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