Difference between revisions of "First steps"

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=This page no longer exists, please visit the [https://www.yade-dem.org/ new documentation]=
Yade can be started from either a terminal window or just by clicking on the icon. Currently it is more useful to run it from a terminal because:
 
* you can <tt>cd</tt> into a directory of your choice (quite often it's yade's <tt>bin/</tt> directory), so that default <tt>../data</tt> directory exists. Next version should allow to configure paths
 
* you can see all messages going to <tt>stderr</tt> or <tt>stdout</tt>
 
 
==File Generator==
 
 
When yade starts, click "'''Preprocessor->File Generator'''". Filegenerators are used to generate an input file for yade to simulate something. You can try using some of the existing ones before you try [[Extending yade|writing a new filegenerator]]. You will see a following dialog box:
 
 
{| style="margin:0;padding:0.2em;width:100%;"
 
|valign="top"|
 
{| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse;" width="100%"
 
! width="20%" | ''key/button''
 
! width="80%" | ''result''
 
|-
 
| ''Output file name''
 
| By default it is <tt>../data/scene.xml</tt>. If you didn't downloaded yade examples this directory might not exist, you can create it, or use another one.
 
|-
 
| ''Output library name''
 
| save format of the file. The BINFormatManager (binary format) is faster to load and save!
 
|-
 
| ''Generator name''
 
| is the name of the class used to generate this file. You can pick anything from the list, and see what it generates. If you happen to write a new generator plugin, and a path to this plugin was added in preferences, then it will automatically appear in this drop down list.
 
|-
 
| ''Open automatically''
 
| If set, the generated file will be automatically opened. In fact you can generate the <tt>.xml</tt> file using some other tools completely not related to yade. And afterwards open them in yade.
 
|-
 
| ''... Parameters''
 
| parameters of the plugin used to generate a file. Each plugin has its own different parameters, so explaining them here is too much.
 
|-
 
| ''Save''
 
| save the configuration of this FileGenerator, to restore it later
 
|-
 
| ''Load''
 
| load the configuration of this FileGenerator
 
|-
 
| ''Generate''
 
| a generated output file will be saved.
 
|-
 
| ''Stop''
 
| If generation takes long time, and you want to stop it, use this button.
 
|}
 
 
| valign="top" style="width:305px" |
 
[[Image:filegenerator.png|300px]]
 
|}
 
 
{{clr}}
 
 
==Examples==
 
 
Some of the filegenerators mentioned above need an input file which can be found in [[Installation#Release|yade-examples]]. Currently we have:
 
 
* 2 examples for FEM
 
* 1 example for SDEC Impact test
 
 
Other filegenerators work without need for any input file. They generate examples just by parameters given to them. In the future yade-examples will contain more.
 
 
Put those examples in mentioned above ''<tt>somewhere</tt>''<tt>/data/</tt> directory, so that filegenerators will find them.
 
 
To have a glance on what FileGenerators are available, and what they do, please visit the [[screenshots and videos]] section.
 
 
==First simulation==
 
 
Once you have succesfully generated an input file for the simulation (called <tt>../scene.xml</tt> by default), you can load and run it. Click "'''File->New Simulation'''", and you will see a '''Simulation Controller''' window. Inside it click Load and choose scene.xml. You should see something like this:
 
 
[[Image:yade_firsttime.png|600px]]
 
 
You can manipulate the qglviewer graphical window by dragging and scrolling with the mouse. To run the simulation click the button [[Image:yade_play.png]] (''play''). Eventually you will see something like this:
 
 
[[Image:yade_boxwall.jpg|600px]]
 
 
 
From now on you can start exploring yade yourself, and have a look at '''[[usage details]]''' for more info.
 
 
[[Category:User guide]]
 

Latest revision as of 15:28, 20 May 2021

This page no longer exists, please visit the new documentation