I'm not guru in DBA, so I'll try explain what I want in terms I imagine it.
I have Oracle DB with network devices. each device has ports which has parent device/port
I want some tool which will automaticaly create visual map of this device relations.
Will create "Network Map" based on this relations.
It's would be better if this tool will have some output ready for web publishing, or web based tool from the begging. Also if it will automatically update "picture" as soon as I add new relation/object
From far it looks something like Gource http://youtu.be/E5xPMW5fg48
But not exactly what i need
Hope to get some suggestion.
Thanks in advance!
UPD: found another tool: Gephi
You could try graphviz. It was created specifically for visualising large graphs of network nodes.
It's not out of the box; you'll have to write some code that:
Reads data on the devices & their relationships
Creates the graphviz input file
generates the diagram by calling the graphviz binary.
There are many ways to do that. One of the easiest is to use python with the pydot library.
Note that graphviz generates static images (jpeg / tiff etc.) so you'd have to regenerate on demand.
There are more interactive toolkits available, e.g. protovis / infovis. Both are javascript based and render directly in the browser.
hth.
Related
I would like to know if this scenario would be possible in any programming language combined with any database technology.
I would like to automatically save received pdf files that are attached in emails into a database. Is this possible? Is there any library or framework available to do so?
Yes, I would recommend using Google Apps Script for this. The approach you should follow is to use the GmailApp class (Documentation here) to get the messages you need, you can use methods like getInboxThreads() (Documentation), to retrieve the messages.
After you've found the message and retrieved the attachment (which you can do withgetAttachments() (Documentation)), you can use the JDBC Service to connect with external databases. The specifics here depend a lot on what database you want to connect with, but the documentation will lead you in the right direction.
The title says it all. I need to create a form that the user fills in and on submit, I want the data to go to a database and a PDF to a directory on the server.
I don't think AngularJS can do all of these things, can it? I'm very new to programming -- trying to crossover from HTML/CSS/JS to more in-depth projects.
Can anyone please suggest the best course for this? What language for the form, writing to the DB and generating a PDF? I can do the rest of the research and build it out once I have some direction.
How would you go about achieving this?
Thanks!
Ugh. I forgot to mention that PHP is not an option. Is there another way?
All you need is to apply the paradigm Client / Server.
With angular.js you can build the client software for handling the form but this is not necessary...
With a single script php you can generate the page with the form and handling the incoming data.
You can use a standard relational database like mysql for storing it and, about the pdf, take a look here
I just want to know about the best way to store simple data in wfp application. I'm using SQL CE, but sometimes I need to store simple data (for instance one string). I don't want to use for it db, and I think it's the right decision.
Could you please give me a guidance on how should I do that in best way or any useful resource?
Is there any particular features data settings storage for pattern MVVM?
Thank You.
Use Settings for exactly this scenario. It's simple, allows per user and system wide scenarios and is build into Visual Studio nicely.
Double clicking on Settings.settings in the Properties folder of your project (in Solution Explorer) brings up the editor and you can access these in code with something simple like Properties.Settings.Default.StringPropertyX.
http://msdn.microsoft.com/en-us/library/aa730869(v=vs.80).aspx
if you're going to be upgrading in the future, I suggest that you create a small abstraction layer that you can upgrade to using any DB or other source, when you need to.
Until you do the upgrade, I would suggest a simple XML file using XDocument and XElement (and the rest of that api).
The reason why I am suggesting this is because you can use Linq on them easily and this enables you to change the provider in the future without any problems.
here is the MSDN on XDocument http://msdn.microsoft.com/en-us/library/system.xml.linq.xdocument.aspx .
I hope this proves to be helpful to you ;-)
Cheers,
Max
p.s. lemme know if this is what you needed or not!
If you publish the application through ClickOnce then you can use IsolatedStorage. It is pretty easy to use, just a few lines of code. You can learn how to use it on WPF isolated storage.
If you don't publish it through ClickOnce then I would suggest you keep it simple and use static class.
you can use file system.. try to create xml file or csv file in the wpf app directory...
you can read and write to same file.. so that you can save what ever you want to that file and read from the same file..
I want to create a a application in actionscipt 3.0 that allows the user to listen to music and read descriptions of the music. For this to happen i suppose there should be a database where the textbits and music is located and then flash fetch the info when the correct buttons are pushed. The database will contain up to 100 tracks and textbits.
The application will function on a stand that won't have a connection to the internet.
What is the easiest way to do this in actionscript 3.0?
If any of you are familiar with UML and thinks this might help in understanding the problem, then here is use-case and flow-chart:
alt text http://img135.imageshack.us/img135/1498/flowchart2.jpg
alt text http://img27.imageshack.us/img27/1000/usercase.jpg
Thanks in advance.
The easiest way to do what you're asking is probably to store the files in a directory on the machine the application is going to be running on, and then design an XML structure for storing your data. The XML is easily loaded in to Flash at runtime and is easily edittable.
Your other option would be running a database server on the machine, creating web services that run locally and push/pull the data from the database, and then call those services from your Flash application.
The first option is most definitely the easiest and should be able to provide exactly what you need. The second would be more geared towards a distributed Flash application where you needed a central data repository for the clients.
If you're building an AIR application, you can use the integrated SQLITE database. But, i agree with Justin, the easiest way is to use a XML file.
You can probably consider using "Local Shared Objects" which is a kind of cookie, with bigger capacity (100Kb by default, but you can change it). Compared to other solutions already proposed, it has then advantage of not requiring any web server.
I'm communicating with a logic analyzer (HP 1660A) over RS232. I issue a command which tells the analyzer to print screen its display and send it over to the controller (my pc) through serial communication. I'm saving the result (which is usually abut 25kB) to my computer and I would like to view it as a TIFF or other format. The problem is that the response from the analyzer comes in PCL format, therefore suitable to be sent to a printer and printed directly, but not to be opened as an image. I have tried a few PCL to image converters to do the job, I found one which does it properly, however I've used the trial version and I am reluctant to purchase it. I've given you the background of my labour. I would appreciate any kind of help, a reference to the commands in pcl 1 and what should I do in order to extract the data and format it properly from the PCL file. I have no experience with PCL and image processing whatsoever, so please, give me a hand here. Thank you.
P.S. I've obtained the PCL file from the analyzer, both in C# and matlab... I have one slight problem in C# with the serial port control, some images have some uninterpreted characters in the image, when using the above converters. I say all these because I need an algorithm or some indications, no matter the programming language, so please feel free to post.
PCL is complex to read. There are only a handful of tools out there that do a good job of this. We have lots of PCL expertise and still often look to other to supply conversion to PDF and other formats. If the PCL is quite simple, that is, just text, a few fonts, and a graphic or two, a couple of RegEx commands could deal with the extraction of the text and then you could mock up a new document using whatever tools you wish.
Looking at these files in stackoverflow might be tough. If you can get them on an ftp and post a link I can take a quick look and post my findings/thoughts here. The other option is to look to an outside tool. There are a few we've had success with. Our needs are broad so I've settled on one that works the best with many different PCL streams (some PCL coding is better than others). As you are dealing with a known quantity of PCL you may have a few options. Here are a few we've used and had some success with (in order of usefulness to us)
PCLWorks by PageTech (they have a GUI viewer and complete SDK)
VeryPDF PCL Converter (command line tool)
SwiftView
There are others, and even an opensource variant of Ghostscript that handles PCL (we've never had much luck as the PCL we use often contains very custom fonts, symbol sets, and tons of macros which seem to choke it.
GhostPCL
EDIT: Most recently we've been working with LincPDF (http://www.lincolnco.com/). This is also an excellent product with has one big benefit, deployment is simple. Some of the other tools have complex software installations. This solution is very easy for us to deploy as a feature in an application. It's also faster then any tools we've tested to date (at least with the PCL that we generate from our apps which is quite complex as they include specialized fonts and macros).
According to the spec sheet for the HP 1660 (pdf) series can send the TIFF,PCX and postscript.
Wouldn't it be easier to use TIFF?
The project was put on hold for a while, but I would like to offer a complete and usable solution.
#Adrian
You can save the image to a floppy disk, I've done that, saved it as TIFF and everything worked fine. Unfortunately, it sends only PCL through RS232. The idea to save the print screen over serial communication was to avoid using too much the floppy disk, which the device uses in order to boot.
#Douglas
Thank you for your elaborate answer. I'll take a look at the indicated tools, however, my desire is to offer a complete front-end solution, which yields directly the graphic. I've put some files from my tests here in order to see the complexity of the PCL constructions. Do you have any knowledge of a possible API that I could integrate into my application, which can parse the file and interpret the PCL?
Regards,
Cosmin
We capture the serial input via a serial spooler that watches COM1:. It's called SSpool.exe. It redirects the PCL as input to PCLXForm. PCLXForm converts it into any raster format (TIFF, JPG, PDF, BMP, etc.) However, we can also extract the text during the conversion and we can extract individual raster objects from the PCL for re-arrangement in the downstream application. Our pricing model is positioned for licensee's that need to convert up to 50,000 pages of invoices into indexed PDF's per month. However, this type of application normally requires a custom license in order to get our pricing down to the level required. In order to do so, we often have to restrict our product to convert unlimited files, but only up to the 20th page within any one PCL print file. That provides enough page volume and gives us the ability to reduce the pricing per unit. To demo, you would need the PCLTool SDK.