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Nathaniel Musial posted a discussion

Nathaniel Musial posted a discussion

Cannot Debug C# Grasshopper Assembly Component In Visual Studio

I've been working on my second component in Grasshopper and have a couple of questions regarding debugging. I am running Rhino Version 5 SR12 64-bit 5.12.50810.13095, Grasshopper 9.0076, Visual Studio 2012 Ultimate. I can open my component in Grasshopper, which has the null reference error 1. Solution exception:Object reference not set to an instance of an object,fine. Now I want to debug in Visual Studio, but my modules say no .pdb file only for any .gha,.dll's, and .rhp's found in C:\Users\Nathaniel\AppData\Roaming\McNeel\Rhinoceros\5.0\Plug-ins\Grasshopper (b45a29b1-4343-4035-989e-044e8580d9cf)\\. The Debug only loads pdb. for symbols in servers and Grasshopper\Libraries, with one exception for Grasshopper.dll which is the only grasshopper component with a .pdb file in the \Mcneel\Rhinoceros...Where are the .pdb files for all the other components Starling_0.2.gha, C_sawapan_media_x64.dll, Vector.gha, GH_IO.dll...? I'll run off the checklist of what I've tried:GrasshopperDeveloperSettings turn off COFmade sure Debug Platform Target is 64, as well as Configuration Manageradd reference in Tools>Options>Symbols add reference (pdb.) to file for where the component files are found.clicked on load symbols, but that doesn't help or save any .pdb's in my symbolcache.added same location in ProjectProperies>ReferencePathadded same location in RhinoDeveloperSettings Add FolderDo I not even need these symbols to debug? Is there a way to add .pdb's manually to my symbolcache? Why does my breakpoint say The debugger could not locate the source file 'C:\dev\grasshopper\1.0\root\src\GH_Component.vb'? I think I read that Grasshopper was written in .vb..Why does my callstack say Grasshopper.dll!Grasshopper.Kernel.GH_Component.New(String name, String nickname, String description, String category, String subCategory)? Why the ! after the .dll?I am thankful for any input-NateSee More

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Comment by Marvin Hunkin on July 29, 2015 at 8:49pm

hi. so did try to look for a the intro videos, the interface, or will the user manual do this. an also what about being accessible with screen readers? also, trried the videos, need videos or info how to use the interface, how to do state, case, use, class and sequence diagrams. any ideas. thanks.

Comment by Marvin Hunkin on July 29, 2015 at 5:55pm

e hi. a blind it student, I am marvin from Adelaide, Australia. I use a screen reader jaws for windows from using windows 8.1 64 bit enterprise, using visual studio community  2013, jaws 16. from now, looking at the tutorials. now I need to do an assignment and doing certificate iv programming from I need to create, state, use, case, class and sequence diagrams. form a couple of projects, I created.  a c# and sql server project. now, are there any accessibility specialists, or blind or low vision users. any tips, tricks, if I do the ryno tutorials, will it speak out all the objects, if I put text labels. been looking for accessible uml tools to work with a screen reader. any tips, tricks, hints, would be very appreciative. if this is not the correct forum for this question, then I apologize. first time on this site. thanks. marvin.

Comment by Cassie Thibodeau on June 11, 2015 at 4:39pm

Looking for experienced Rhino modelers who are interested in an freelance project with NVIDIA.  contact me for details.  cthibodeau(at)nvidia(dot)com

Comment by Remy (RMDeveloppements) on May 6, 2015 at 2:26am

Bonjour à tous et à toutes,


Il est important de noter qu’il y a un cruel manque de documentation sur grasshopper en Français.


Il y a un support de cours que j’avais écrit pour la version 0.8 mais grasshopper est maintenant doté de plein de fonctionnalités non présentées dans ce support.


C’est pourquoi j’inaugure aujourd’hui le premier Wikia collaboratif sur grasshopper nommé Grasshopper 3D.

Vous le trouverez sur cette page :


Qu’en pensez-vous ?


PS : Wikia est un site communautaire auquel n'importe qui peut contribuer.

Découvrez, partagez et ajoutez ce que vous savez !





Comment by Mike Fleck on September 2, 2014 at 10:48pm

I am interested in using Python to try and get 2d Gcode for my lathe bypass my CAM software, but while looking into it I am wondering if Grasshopper could do the same job with the added benefit of real time  code changes when 2d geometry is adjusted. Wondering anyone is doing something like this and how its working.

Comment by wout zweers on June 29, 2014 at 6:59am

hi everybody

here is a downloadable box constructor. it makes a box with square joints, you can set dimensions, thickness, amount of joints and cutting tool diameter. i wrote it a while ago and it's tested and works fine for my laser cutter (cardboard, wood, acrylics). 

even though it works well, it may not be the most elegant coding so any comments are welcom to learn from

btw. is there any repository for sharing grasshopper definitions?

enjoy, wout zweers

Comment by Filippo Donat on October 11, 2013 at 2:12am

Hi there, is anyone aware of an option in Rhino to test whether two 3D objects (with irregular shape) are similar given some similarity criteria provided as inputs? Any clue’s appreciated. Thanks

Comment by zhuoming on October 10, 2013 at 1:48am

Martin Siegrist :

Think you very much , I succeed !

Comment by Martin Siegrist on October 9, 2013 at 11:29pm

I used a Split component (Sets, Text) to split the lines into 4 values. Then explode and plug into a Construct Point component (Vector, Point)

Comment by zhuoming on October 9, 2013 at 7:43pm


I want to get the result as drawing,how to do ?


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