I made a content pipeline extension (using this tutorial) in XNA 4.0 game.
I altered some aspects, so it serves my need better, but the basic idea still applies. Now I want to go a step further and enable my game to be changed during run time. The file I am loading trough my content pipeline extension is very simple, it only contains decimal numbers, so I want to enable the user to change that file at will and reload it while the game is running (without recompiling as I had to do so far). This file is a very simplified version of level editor, meaning that it contains rows like:
1 1,5 1,78 -3,6
Here, the first number determines the object that will be drawn to the scene, and the other 3 numbers are coordinates where that object will be placed.
So, how can I change the file that contains these numbers so that the game loads it and redraws the scene accordingly?
Thanks
Considering you've created a custom content pipeline extension I presume you know how to load in data using streamreader? Where you could just empty your level data and load new data in by reading through the text file line by line?
The reason I mention this is because as far as I am aware it's not possible to load in data through the content pipeline during runtime especially because the xna redistribute does not contain the content pipeline.
Another option could be to change to using xml for the level file and use XElement which I quite recently found and this is my current method.
Here is a commented example of using StreamReader to load in simple level data from a .txt file. http://pastebin.com/fFXnziKv
In XNA 4, if you are using StorageContainer, you can do something like:
(...)
StorageContainer storageContainer = //get your container
Stream stream = storageContainer.OpenFile("Level.txt", FileMode.OpenOrCreate);
StreamReader sr = new StreamReader(stream);
while (!sr.EndOfStream)
{
String line = sr.ReadLine();
//use line to do something meaningful
}
stream.Close();
storageContainer.Dispose();
(...)
From personal experience, if you go for raw TextReader, the only problem is to get the path of your Content folder, which can be relatively easy to retrieve (in Windows only!)
Related
I know there are similar articles like PDF file conversion in JMeter but they do not answer the actual problem which is "when converting a PDF to a variable/object/property then back to PDF the document whilst the correct number of pages is 'whit on white'= blank.
is there a way to :
Create a runtime variable/object/property from an existing PDF file that can be used in a subsequent action.
Here other actions happen in the Test Plan but they do not
Convert the variable/object/property back to a pdf so that when viewed it does not contain just blanks.
Notes: I do not just wish to just copy a to pdf to pdf.
I have also tried creating a UDV form the pdf using the following posted on here without success too.
${__groovy(vars.putObject("hoping_its_a_pdf"), new File("my_original.pdf"))}
Reading other posts here I have also noticed strange character strings like "%âãÏÓ" when using both putObect and props.put when viewing them post creation but as the article said, most probably page break characters or similar so I have ignored those for now as I assumed it is the conversion and not the reason for the blank content.
Can someone please assist as this is now 4 weeks in and I still have white pdf's.
We cannot state what's wrong with the code which you're copying and pasting from some random sources.
There is not problem with storing the PDF file in JMeter Variables or properties and creating the file back from them.
Demo:
There are 2 problems the only piece of "code" you're sharing:
Your way of using vars.putObject() function is wrong, it takes 2 parameters: variable name and the object value. See Top 8 JMeter Java Classes You Should Be Using with Groovy article for more information on this and other JMeter API shorthands
Apart from this the function itself is syntactically incorrect, you need to escape any comma in the function with a backslash
So if you change your:
${__groovy(vars.putObject("hoping_its_a_pdf"), new File("my_original.pdf"))}
to
${__groovy(vars.putObject('hoping_its_a_pdf'\, new File('my_original.pdf')),)}
at least this bit will start working as you expect.
I trained w2v on rather big (> 200 million sentences) corpus, and got, in addition to file w2v_model.model, files: w2v_model.model.trainables.syn1neg.npy and w2v.model_model.wv.vectors.npy. Model file was successfully loaded and read all npy files without any exceptions. The obtained model performed OK.
Now I retrained the model on much bigger corpus (> 1 billion sentences). The same 3 files were automatically saved, as expected.
When I try to load my new retrained model:
w2v_model = Word2Vec.load(path_filename)
I get:
FileNotFoundError: [Errno 2] No such file or directory: '/Users/...../w2v_US.model.trainables.vectors_lockf.npy'
But no .npy file with such extension was saved by gensim at the end of the training
(I save all output files in the same library, as required).
What should I do to obtain such file as a part of output .npy files (may be some option in gensim w2v when training)? May be there are other ways to overcome this issue?
If a .save() is creating any files with the word trainables in it, you're using a older version fo Gensim. Any new training should definitely prefer using a current version. As of now (January 2022), that's gensim-4.1.2, released 2021-09.
If an attempt at a .load() generated that particular error, then there should've been that file, alongside the others you mention, created when the .save() had been done. (In fact, the only way that the main file you named with path_filename should be able to know that other filename is if that other file was written successfully, allowing the main file to complete writing.)
Are you sure that file wasn't written, but then somehow left behind, perhaps getting deleted or not moving alongside the other few files to some new filesystem path?
In general, I would suggest:
using latest Gensim for any new training
always enable Python logging at the INFO level, & watch the logging/console output of training/saving processes closely to see confirmation of expected activity/steps
keep all files from a .save() that begin with the same main filename (in your examples above, w2v_US.model) together - & keep in mind that for larger models it may be a larger roster of files than for a small test model
You will probably have to re-train the model, but you might be able to re-generate a compatible lockf file via steps like the following:
save aside all files of any potential use
from the exact same configuration as your original .save() – including the same outdated Gensim version, exact same model parameters, & exact same training corpus – repeat all the model-building steps you did before up through the .build_vocab() step. (That is: no extra need to .train().) This will create an untrained dummy model that should exactly match the vocabulary 'shape' of your broken model.
use .save() to save that dummy model again - watching the logs/output for errors. There should be, alongside the other files, a file with a name like dummy.model.trainables.vectors_lockf.npy. If so, you might be able to copy that away, rename it to tbe the file expected by the original model whose load failed, then leave it alongside that original model - and the .load() might then succeed, or fail in a different way.
(If there were other problems/corruption at the time of the original model creation, this might not work. In particular, I wonder if when you talk about retraining the model, you didn't start with a fresh Word2Vec instance, but somehow expanded the older one, which might've added other problems/complications. In that case, a full retraining, ideally in the latest Gensim, would be necessary, and also a better basis for going forward.)
Based on the Code How-To-Convert-PDF-to-Image-Using-Ghostscript-API
I trying to figure out how to get a image foreach page without creating the files
To get an image foreach Page i setted OutputToMultipleFile = true.
Then i went step for step through his code but i wasn't able to find the part where the files get created.
So i want to know what i need to change in this code?
or anything else which helps to achieve this
EDIT
here my current parameters:
args[0] =
args[1] =-dNOPAUSE
args[2] =-dBATCH
args[3] =-dSAFER
args[4] =-sDEVICE=pnggray
args[5] =-r130
args[6] =-sOutputFile="C:\Scannen1.PDF%d.png"
args[7] ="C:\Scannen1.PDF"
You need to use a device which doesn't write to file, all the image format devices write their output to file. You could use the display device which will return you a bitmap in memory as a template and write your own device, or you can modify one of the existing devices.
Modifying an existing device is a task for a developer and while not excessively difficult is not trivial either.
In any event, you aren't going to get what you want by fiddling with command line switches. Like Sinatr I'm puzzled by what you can usefully do with Ghostscript which doesn't involve writing to file.
Oh, one other possibility is to load the nulldevice, which is done in PostScript and is simply a bit bucket.
I am porting an iphone game to windows phone 7. iphone works fairly similarly to Winmo7 in that you add all the files you want to be able to read to the project. we didn't want this extra step in our asset creation pipeline, so we just made it so all files were put into our own basic file archive, then just added that one archive file to the project. we then have an asset build process that exports all our assets, then creates this archive from them.
in winmo7 it caught me by surprise that you couldn't just do the same thing. as far as I know, the only way you can load data is though the content pipeline. we solved this fairly easily though by simply making a contentImporter that would just convert all the files to byte[] and export them as byte arrays, then you can simply load them an just directly access all the bytes that are in the file. unfortunately, unlike c++ where you would just cast memory to structures (because the file would already be stored in the structure's format) c# seems to require a more manual approach, where you use things such as BitConverter to load all the data into structures and classes from the byte array.
the thing is, we want to use our already existing asset export processes for things like textures and meshes, were we already have stuff setup for figuring out the exact pixel format that should be used for each texture ect. so in those cases we don't want to use the default Texture and Mesh content Importers. we tried making our on Texture ContentImporter, by simply making it return a Texture2D, but in order to create a Texture2D, you need a graphics device.
the second problem was the process of having to add every asset to the project. we decided that we didn't want to just load our dataArchive like we do for the iphone, because we DO want to use the default ContentImporters for Some of the data (like sound). but we solved this problem by making it so you just add one text file, with the root data dir in it, to the project, then made a ContentImporter that iterates through that directory structure and calls 'context.BuildAsset' on all the files there.
so summing up, we have one asset and ContentImporter that automatically handles the importing of all the assets in the data directory, thus solving the problem of having to add them manually to the project. some of these assets will be directed through the default ContentImporters (like sound and music, and xmls) while others will just be imported as byte[] and loaded manually, because we already have the asset in the format we want. in the case of those assets, it would be good if we could do the 'byte[] -> loaded manually' inside custom ContentImporters - offline- but for the first one we tried - Textures - it required a Graphics device to create the native Textue2D structure, and we couldn't find one in the ContentImporter framework.
so any thoughts? pointers? or is this the bestest way to do everything? I suppose another option would be to just convert all assets to a format the default Texture and Mesh processors can take in, and parameters to go with each of them (so we have a hand crafted 565 texture, convert it back to an 888 tga, then send it through the default texture pipeline with a parameter saying "convert this to 565")
TitleContainer
its this new class they added in 4.0, and is a little less explicit than the File stuff
just go TitleContainer.OpenStream(path)
It's straight forward to open a text file and read the contents in a WP7 project. Here is one way.
Uri linesUri = new Uri("lines.txt", UriKind.Relative);
StreamResourceInfo stream = App.GetResourceStream(linesUri);
StreamReader streamReader = new StreamReader(stream.Stream);
var contents = streamReader.ReadToEnd();
streamReader.Close();
I initially dragged the lines.txt file into my project from explorer - no other handling was necessary for this code to work.
Include the references you need...
using System.IO;
using System.Windows.Resources;
Rephrase the question and I would be more than happy to help you. Specifically, give examples of the issues you are trying to solve. I have done a lot work with the content pipeline in XNA and could share with you some tips.
I will update my answer once you give more details.
I have tool that creates variables for a simulation. The current workflow involves hand copying those variables into the simulation input file. The input file is a standard flat file, i.e. not binary or XML. I would like to automate the addition of the variables to the flat input file.
The variables copy over existing variables in the file, e.g.
New Variables:
Length 10
Height 20
Depth 30
Old Variables:
...
Weight 100
Age 20
Length 10
Height 20
Depth 30
...
Would like to have the old variables copy over the new variable. They are 200 lines into the flat input file.
Thanks for any insights.
P.S. This is on Windows.
If you're stuck using flat, then you're stuck using the old fashioned way of updating them: read from original, write to temp file, either write the original row or change the data and then write that. To add data, write it to the temp file at the appropriate point; to delete data, simply don't copy it from the original file.
Finally, close both files and rename the temp file to the original file name.
Alternatively, it might be time to think about a little database.
For something like this I'd be looking at a simple template engine. You'd have a base template with predefined marker tokens instead of variable values and then just pass the values required to your engine along with the template and it will spit out the resultant file, all present and correct. There are a number of Open Source template engines available in Java that would meet your needs, I imagine such things are also available in your language of choice. You could even roll your own without too much difficulty.
Note that under Unix, one would probably look at using mmap() because you can then use functions such as memmove() to move the data around and add new data or truncate() the result if the file is then smaller (you may also want to use truncate() to grow the file).
Under MS-Windows, you have the MapViewOfFileEx() function to do the same thing. The API is different, though,
and I'm not exactly sure what happens or how to grow/shrink the file (MSDN also includes a truncate()-like function and maybe that works).
Of course, it's important to use memcpy() or memmove() properly to not overwrite the wrong data or go outside the buffer.