Ben Silverman Male Brooklyn, NY United States: Like

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DIVA for Rhino

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PAE-Lab

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[uto] tools Plug-ins

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Ben Silverman's Discussions

Galapagos: Simulated Annealing to seed Genetic Algorithm

Tags: algorithm, genetic, annealing, simulated, galapagos

Started Apr 23, 2012

Simulated Annealing

David,I have been playing with the Galapagos Simulated Annealing solver for a bit now and I am ready to start messing with the default settings. I found your …Continue

Tags: annealing, simulated, galapagos

Started Feb 20, 2012

Trimmed BrepFaces VB
1 Reply

Started this discussion. Last reply by David Rutten Dec 15, 2011.

Transparent (png) icons in custom grasshopper component
7 Replies

Hello,I am attempting to create a transparent icon for a custom grasshopper component built in SharpDevelop. We have succesfully added icons as a resource to the project and return the icon as a…Continue

Tags: icon, component, custom

Started this discussion. Last reply by Ben Silverman Dec 14, 2011.

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Ben Silverman posted a discussion

Galapagos: Simulated Annealing to seed Genetic Algorithm

David,I am interested in experimenting with using several solutions from Galapagos' Simulated Annealing (SA) solver as members of the initial population in a Evolutionary Solver (GA) optimization. For instance, I'd like to run 10 rounds of the SA to generate 10 solutions that would be 10 of the initial 50 members (the other 40 would be randomly generated by Galapagos) for a GA.I would like to try to use "Start From Selected Genome" but it is grayed out in my Galapagos. How do I access this…See More

Apr 23, 2012

0 Comments

Ben Silverman posted a discussion

Simulated Annealing

David,I have been playing with the Galapagos Simulated Annealing solver for a bit now and I am ready to start messing with the default settings. I found your discussion post on inbreeding and settings for the Genetric Algorithm very helpful.Could you please provide a brief description of the settings and their domains for Simulated Annealing or atleast verify…See More

Feb 20, 2012

0 Comments

Ben Silverman commented on Jeff Niemasz's group DIVA for Rhino

"Hello, For the daylight simulation component, I was wondering if there is anyway to change the simulation settings in grasshopper rather than doing it in Rhino. I'd like to run a simulation for radiation nodes for the summer months and then for…"

Feb 8, 2012

Ben Silverman joined Jeff Niemasz's group

DIVA for Rhino

DIVA-for-Rhino is a plugin which runs thermal, daylight, solar radiation, and glare simulations. Our goal is to bring validated environmental simulations directly to the conceptual design environments of Rhino and Grasshopper.See More

Feb 8, 2012

59 Comments

Ben Silverman replied to dorvieto's discussion Gerilla: Grasshopper to Energy Plus in the group PAE-Lab

"Alan and others, We have had trouble with the download link on this grasshopper page. If you'd like to install our plug-in, please send me an email at BHSilverman@gmail.com and I will share a dropbox folder with you, from which you can…"

Feb 6, 2012

Ben Silverman replied to dorvieto's discussion Gerilla: Grasshopper to Energy Plus in the group PAE-Lab

"Strange, it worked for me. I can email it to you if you want to share your email address."

Jan 13, 2012

Ben Silverman replied to dorvieto's discussion Gerilla: Grasshopper to Energy Plus in the group PAE-Lab

"You should be able to download the primer by right clicking the file and selecting "Save link as..." Let me know if this works for you. Ben"

Jan 12, 2012

Ben Silverman replied to dorvieto's discussion Gerilla: Grasshopper to Energy Plus in the group PAE-Lab

"The Gerilla Tower Demo video is a quick demo to show how you can quickly move from modeling one thermal zone, to a tower of stacked thermal zones, to a 2 or 3 dimensional stack of thermal zones. http://youtu.be/frvWhBtCBOQ ;"

Jan 12, 2012

David Rutten replied to Ben Silverman's discussion Trimmed BrepFaces VB

""We have finally discovered its because BrepFaces return untrimmed surfaces" this is not true, a BrepFace derives from Surface*, but it does carry trimming information as long as you keep it as a BrepFace. If you call DuplicateFace on a…"

Dec 15, 2011

Ben Silverman posted a discussion

Trimmed BrepFaces VB

Hello,Having a VB issue in a custom component. We are sorting the BrepFaces of a closed Brep and outputting the BrepFaces that we then cast as Breps into three different categories: roofs (normal vectors point up), floors (normal vectors pointing down) and walls (everything else). It currently works when dealing with a box , however when we have non-rectangular faces the Breps are no longer trimmed to the appropriate shape.We have finally discovered its because BrepFaces return untrimmed…See More

Dec 14, 2011

1 Comment

Ben Silverman replied to Ben Silverman's discussion Transparent (png) icons in custom grasshopper component

"Cool! Thanks for the explanation David."

Dec 14, 2011

David Rutten replied to Ben Silverman's discussion Transparent (png) icons in custom grasshopper component

"Images that do not have transparency store 3 values per pixel*; Red, Green & Blue. Images with transparency carry an extra channel, the Alpha channel**, which stores the opacity/transparency of each and every pixel. We call these types of images…"

Dec 12, 2011

Ben Silverman replied to Ben Silverman's discussion Transparent (png) icons in custom grasshopper component

"They were created in illustrator and saved as .png's. Another part of the problem may be that i dont know what an alpha channel is or how to operate on it. Is the alpha channel the transparency layer/aspect of the image? What should it be set…"

Dec 12, 2011

David Rutten replied to Ben Silverman's discussion Transparent (png) icons in custom grasshopper component

"Ok, so I finally got it to work (why doesn't the Execute Custom Tool just fold out to provide a list of all custom tools?) and I had no problem with the alpha channel. Are you creating these icon png files with Photoshop or Illustrator per…"

Dec 12, 2011

Ben Silverman replied to Ben Silverman's discussion Transparent (png) icons in custom grasshopper component

"David, I wrote a blog post on the steps to adding a resource file for my a course at the Product Architecture Engineering Lab. You can find the post on the course blog…"

Dec 11, 2011

David Rutten replied to Ben Silverman's discussion Transparent (png) icons in custom grasshopper component

"Well, I just installed SharpDevelop but I must be stupid. I can't access the bitmaps stored in a resx file. The "execute custom tool" doesn't seem to do anything and trying to construct a ResourceManager fails every…"

Dec 11, 2011