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Getting started
To use wtherion, just open any modern browser and go to this link. Only desktop platforms are supported.
If you want to edit an existing TH2 drawing, you can import it to wtherion in the main menu. Click the File menu > Import > TH2.
If you have any XVI files associated in the TH2 file, you will be prompted to open them. The offsets stored in the file will be used, but they are not accurate. You will most likely have to correct the positions of the XVI graphics after import.
Images associated in the TH2 file are ignored. If you have any images you want to use, reimport them as described below.
Raster images are supported in wtherion in GIF, JPEG and PNG formats. You can import them with File > Import > Image. Be aware that unlike XTherion, these files will not update if their sources change. These are stored inside the project files, and will always stay the same after importing, even if the original files are changed, moved or deleted.
See the General usage page for an overview of the editor.
Use the tools from the toolbar on the top left corner of the screen to create objects or make changes to objects in your project.
For more information, look at the Tools reference.
If you have multiple scraps in your project, only the currently selected scrap is editable. You can select scraps and hide the ones not in use in the Scraps panel which you can see in the bottom of the sidebar.
The recommended way to persist your projects is to save them as wtherion project files. If you always export and import TH2 files instead, some information may be lost in the process and you will also have to open your XVI or image files every time.
This app can store all your project files in the browser so you don't have to worry about managing your wtherion files. If your clear your browser cache, these files may be deleted. Saves are not accessible across different browsers or machines.
If you save the project with File > Save, you can name the save which will be created. This will create a save in your browser. You can later come back and use File > Open, which lists all saves present in this browser. You can also delete saves here.
Tip
If you are using a Chromium browser (Google Chrome, Microsoft Edge), you can use file system saves, which will allow you to save your project files to your computer. Set the Save handler in the Configuration > Functionality tab to File system to enable this feature. Once you do, File > Save and File > Open will use the file system instead of the browser storage.
If you would like to transfer your projects, open any save and use File > Other exports > Download save which will give you a JSON file. Import this in wtherion with File > Import > JSON.
If you are done with the changes you want to make in whterion, or you wish to preview your project, use File > Export to create a TH2 file.
If you are using a Chromium browser (Google Chrome, Microsoft Edge), exports will automatically use the file system. This means you do not have to set the export location each time you export your project. To set a new location, use File > Export as.
You will have to set the location each time you export your project. If you set your browser settings to prompt for each downloaded file and ask for the save location, you will be able to select and replace your existing TH2 file in your Therion folder.