run a grashopper file from the rhino command line

How can I run a specific grashopper file from the rhino command line? Is it possible to run it from another external program (.exe) programmed in .net (that´s what I´m trying)? (Rhino it´s easy, but GH?)
My program automatically opens a rhino file and I´ll also need to open a certain grasshopper file.

Thanks in advance!!!

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Permalink Reply by David Rutten on June 5, 2010 at 8:52am

This isn't possible at present. Grasshopper cannot be scripted from the command line. I'll put this on the list of things to add. I'll also add RhinoScriptability.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

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Permalink Reply by NaN on June 5, 2010 at 9:03am

Thank you very much. It will be really really handy in order to have a total connection with GH

best regards!

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Permalink Reply by David Rutten on June 7, 2010 at 2:51am

I added very simple command scripting to the next release. It allows you to show/hide/toggle the Grasshopper window, to enable/disable/toggle the Grasshopper solver and to open/close a Grasshopper file. Just use the hyphen in front of the Grasshopper command to access these options.

Somehow I suspect this will not be adequate, but I'd rather put the complicated controls into a RhinoScript library than a command-line interface.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

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Permalink Reply by Luis Fraguada on June 7, 2010 at 7:20am

Interesting advances!

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Permalink Reply by David Rutten on June 7, 2010 at 1:24pm

I also just added a rudimentary RhinoScript interface. So now you can do stuff like:



Option Explicit



Call Main()

Sub Main()

     Dim GH

     Set GH = Rhino.GetPlugInObject("Grasshopper")



    Call GH.DisableBanner()

     Call GH.ShowEditor()



     Call Rhino.Print("Loaded:" & GH.IsEditorLoaded())

     Call Rhino.Print("Visible:" & GH.IsEditorVisible())

     Call Rhino.Print("Enabled:" & GH.IsSolverEnabled())



     Call GH.OpenDocument("C:\testfile.ghx")

     Call GH.SaveDocumentAs("C:\backup [" & Hour(Now()) & Minute(Now()) & "].ghx")

End Sub

There is a lot I can expose like this, so it might be interesting to see where it goes.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

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Permalink Reply by Joshua Newman on October 26, 2010 at 6:43am

This is good, would it be possible to load a file and bake it's result using this?

J.

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Permalink Reply by panhao on June 7, 2010 at 5:48am

It is very easy .You could try FileSystemWatcher class.
//___________________________________________________

void watcher_FileCreated(object sender, FileSystemEventArgs e)
{
file += 1;
RedefineSolution();
}
FileSystemWatcher watcher;
public int file = 0;
bool sign = true;

public void RedefineSolution(){
owner.ExpireSolution(true);
}
public Script_Instance(){
watcher = new FileSystemWatcher();
if(sign == true){
watcher.Filter = "*C.txt";
watcher.Changed += new FileSystemEventHandler(watcher_FileCreated);
watcher.Path = "F:";
watcher.EnableRaisingEvents = true;
sign = false;}
}