We run the offline viewer using the http-server command, how can we make it load more files other than the bubbles and to be able to send strings back to it to save as files on the file system?
Do we have to write a modified http-server for that? if so can we have some direction on how?
The Viewer is read-only, nothing is saved or changed on the model after the translation.
It's possible to get the current state, like zoom, perspective or position via Autodesk.Viewing.Viewer3D methods: getState() and restoreState(), but the state is not actually saved by default, you'll need to implement a JavaScript that communicate with your backend to POST and GET this information. This sample extends this state.
Another sample extend this to save changes on model back to server that comunicate to the original file. Again, everything is custom implemented.
In any case you'll need a back-end that store the changes and a JavaScript that read and restore it.
Related
I am building a simple editor-type application in react-redux, and I want to mimic the operation of downloading and uploading json files for saving and loading data - entirely client side. The server side does not need the data. Local storage may be too small, and it would be nice to provide the user the data in a portable file they could upload on a new machine. Is this even possible, and if so how?
Using a blob file.
You can set the content of a new file which is temp and local, then trigger a click event to download the file.
duplicate answer here and here
Similar to the uploading feature in fuelphp (link provided below), is there a tutorial for downloading files in fuelphp. There is not much information out there for fuelphp (other than the docs). Would I require a separate config page called download.php similar to upload.php?
All I really need is a page with either a download link or button to export csv to a user's local machine
Link to Upload feature
https://www.tutorialspoint.com/fuelphp/fuelphp_file_uploading.htm
Thanks in advance
Have you looked at the File class? This has a method of download which you pass the path of the file to. The 2nd param allows you to specify the name of the file that's downloaded.
File::download('path/to/file.txt, 'new-file-name.txt');
If you want to restrict downloads per user, you'll need to add logic around that.
https://fuelphp.com/docs/classes/file/usage.html#/method_download
Example
Create a new controller, as you've pointed out, download.php, and use the following as a starting point.
You'll need to pass something through to the get_index in order to determine which file the client will download. I'd suggest some sort of look up, using an unique identifier, instead of a file path, otherwise this would easily be exploited.
class Controller_Download extends Controller
{
public function get_index()
{
// #todo add logic surrounding file download
File::download('path/to/file.txt, 'new-file-name.txt');
}
}
I'm developing an Electron app that is running an instance React VR. The app enables a user to add and save content to a react-vr project by reading and writing the state from/to a JSON file. During development, this JSON file has been stored in the root directory. However, if a user is to download and use the app on their computer, the JSON file needs to be moved outside the app package contents folder.
I have tried using app.getpath('userdata') which returns /Users/'username'/Library/Application Support/'app_name', and I can move the JSON state file there successfully upon running the app. However, I don't know how to have react-vr access this file, especially since there is no access to the computer's file system. However, all I really need is the user's system username to include in the 'userdata' file path.
What's the best way to go about retrieving the username from within react-vr? Would there be a better way to persist user data instead of a using a JSON file to keep track of the state? Would it be worth considering using AsyncStorage in conjunction with a database? Many thanks.
:image => StorageRoom::Image.new_with_filename(path)
I have to get the path of the image. So far i have specified the path manually and it worked and now i have put in heroku but it shows Load Error - No such file present.
How can i get the path value of the local system using browse button.
Your problem may not be related to path names, but to the fact that Heroku has a read-only file system. If you try to write files onto disk in a Heroku app, it simply doesn't work -- the file will not be saved.
The exception is the "temp" directory. You can save files there, but they are not guaranteed to persist for longer than the duration of a single request.
Is the file you are trying to open actually saved in your Git repo? If so, it will be on the disk in your Heroku app, and you should be able to open it.
To see what the filesystem layout looks like on your Heroku instance, you can create a controller method like:
render :inline => Dir['**/*'].inspect
File.expand_path
Reference : http://saaridev.blogspot.com/2006/11/ruby-finding-absolute-path-of-running.html
You don't need the full path. As far as file path in the client machine is concerned for file uploads, the path is irrelevant as it poses security risks for the user.
Most modern browsers don't send the file path for file uploads. You could get the path using Javascript or Flash but still I don't see the logic behind doing this.
When a user clicks on the submit button the browser should at least send you the file name with the file data together with a bunch of other information like the mime type. Your web server would either write the file to disk or process it in memory assuming you have near infinite memory resources. Look at the RFC 1867 for file uploads for more on this.
I am facing problem in HTML 5. I need to statically load data into web page from local saved files. Up to now, I have been only able to load data via < input type="file" id="fileinput" / > but I want to load data from static location, which never changes. How to do that? And is there any way how to determine, whether some local file was changed from previous version?
Thanks
no, this isn't possible if by 'local', you mean a file at /home/waypoint/somefile.txt. You can make a 'link' with the filesystem api (if you selected it in an input field, for instance), which is valid to do computations with it (to read it, write to it, display it in img,etc). But it is deleted/unvalid, as soon as the window closes. If you could just magically "read" any local file via javascript which resides on the file system, who would stop google to read out your /etc/passwd file?
if your local computer is also your server and therefor your server-side code has access to the local file /home/waypoint/somefile.txt, your app can get it via ajax. Checking if the file exists, would be done the same way.