you may know, PCS (from now I will call polar coordinate system with PCS, and cartesian one with CCS) describes point position with 2 values (like x and y in CCS) which are r and theta(r,theta). r is for distance from PCS center, theta is angular dimension which is in 0 to 360 or 0 to 2*pi domain.
To hark back to David's guide line - here it is replaced with guide circle.
Why to sort points like this ? As usual, one image tells more...
Here is logic behind all this stuff :
Find an average point of all given points*
Search for furthest point from an average point*
Create a circle with center at average point and radius = distance from average point to furthest point*
*Steps 1-3 can be replaced with custom hand-made circle, I decided to automate it that way.
For each point find closest point on circle - this will be used for finding theta value
For each point find distance to average point - this is r value
To overcome problem with same theta (t) values (like same x values in CCS), instead of multiplying by 1000, we will use a new create set component. This component creates set of integers, each one representing one unique input value. So if points A, B, C, D, E are (r,theta) :
A (1, 30)
B (2, 30)
C (3, 30)
D (1, 45)
E (1, 60)
Then create set will output list of integers = 0,0,0,1,2 (same theta for A, B, C other theta for D and E). Now its getting really easy - remap r values to domain 0 to 0.5 (or any less then 1), and add integers from create set component to remapped r values.
7. So what we have now is list of floating point numbers : A=0, B=0.25, C=0.5, D=1, E=2
Profit of remapping is that r values will never affect integers representing theta values - and all the information is stored in one floating point number ! By sorting these values we will obtain proper order of points - to complete this, we need to sort points parallel with values.
What's really cool about polar sorting - there could be any amount of points, but polyline connecting all of them will never self-intersect. Probably there is some relation with 2d convex hull.…
2: https://vimeo.com/107502226
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Hi all,
1. Chris, Chien Si and I will present Ladybug and Honeybee at IBSA-USA NYC this Thursday (August 21st). The presentation will include some of the latest developments that we are working on. If you are interested to know more about some of the new developments and see some of the workflows and you are around New York then just stop by. If can't attend in person you can still watch the presentation online. Check the links below. (Make sure to register by Wednesday if you are attending in person.)
2. We would like to show some of the works that you have done with Honeybee and Ladybug during the presentation so if there is anything that you think is interesting and can be presented publicly send it to us at thisisladybug@gmail.com or just post it here. Make sure to let us know who do you want us to credit the image.
3. That's it for now. I copy the information about the presentation below and hope to see some of you there. Thanks for your help and support.
Cheers,
Mostapha
IBPSA-USA New York Regional Chapter presents:
Parametric Modeling Tools | Ladybug and Honeybee
Location: Thornton Tomasetti, 44 East 27th street (between Madison and Park)
Date & Time: Thursday, August 21, 2014 - 6:00-7:30 PM.
6:00-6:30 PM Networking
6:30-7:30 PM Ladybug and Honeybee
Mostapha Sadeghipour Roudsari, Thornton Tomasetti
Chris Mackey, MIT
Chien Si Harriman, Terabuild
7:30-7:45 PM Q & A
Click here to register**: https://attendee.gotowebinar.com/register/6507378565592582402
**Please register at least a day in advance if you wish to attend in person
Descriptions
Ladybug + Honeybee
Ladybug and Honeybee are open source environmental plugins for Grasshopper that help architects and engineers create an environmentally-conscious architectural design.
Ladybug imports standard EnergyPlus Weather files (.EPW) into Grasshopper and provides a variety of 3D interactive graphics to support the decision-making process during the initial stages of design. The plugin also provides further support for designers as they test their initial design options with radiation, sunlight-hour, and shading analyses. Integration with Grasshopper allows for an almost instantaneous feedback and, since the plugin runs within the design environment, the information and analyses are interactive.
Honeybee connects Grasshopper3D to EnergyPlus, Radiance, Daysim and OpenStudio for building energy and daylighting simulation. The Honeybee project intends to make many of the features of these simulation tools available in a parametric way. Just as users have made changes to geometry for years in Grasshopper, now users can parameterize system types, zoning schemes, schedules of operation, daylight sensor placement and controls - all of the “hardcore” simulation parameters that have never been exposed to parametric modeling tools.
https://www.facebook.com/LadyBugforGrasshopper http://www.grasshopper3d.com/group/ladybug
…
teraction for its Correlations cycle, AA Athens Visiting School scales up its design intentions in order to investigate links among discrete individual architectural systems in its 2013 version, Recharged.
Recharged with interconnectivity on different levels, the theme of investigation will revolve around the design of semi-independent design prototypes acting together to form elaborate unified results. The driving force in Cipher City: Recharged is the synergistic effect behind complex form-making systems where interactive design patterns arise out of a multiplicity of relatively simple rules.
In collaboration with the National Technical University of Athens, Cipher City: Recharged will explore participatory design and active engagement modeling and will continue building novel prototypes upon horizontal planes.
As in 2012, the design agendas of AA Athens and AA Istanbul Visiting Schools will directly create feedback on one another, allowing participation in either one or both Programmes.
Discounts
The AA offers several discount options for participants wishing to apply as a group or participants wishing to apply for both AA Istanbul and AA Athens Visiting Schools:
1. Standard application
The AA Visiting School requires a fee of £695 per participant, which includes a £60 Visiting Membership. If you are already a member, the total fee will be reduced automatically by £60 by the online payment system. Fees are non refundable.
2. Group registration
For group applications, there will be a range of discounts depending on the number of people in the group. The discounted fee will be applied to each individual in the group.
Type A. 3-6 people group: £60 (AA Membership fee) + 635*0.75 = £536.25 (25 %) Type B. 6-15 people group: £60 + 635*0.70 = £504.5 (30%) Type C. more than 15 people group: £60 + 635*0.65 = £472.75 (35%)
3. Participants attending both AA Istanbul and AA Athens | 40% discount
For people wishing to attend both AA Istanbul 2013 and AA Athens 2013, a discount of 40% will be made for each participant. (The participant will pay the £60 membership fee only once.)
£60 (AA Membership fee) + (635*0.60)*2 = £822
For more information in discounts, please visit:
http://ai.aaschool.ac.uk/athens/portfolio/discounts-2013/
Applications
The deadline for applications is 11 March 2013. A portfolio or CV is not required, only the online application form and payment. The online application can be reached from:
http://www.aaschool.ac.uk/STUDY/VISITING/athens…
Added by elif erdine at 12:33pm on December 13, 2012
Albahari) > my favorite
The reference: C# Language specs ECMA-334
The candidates:
C# Fundamentals (Nakov/Kolev & Co)
C# Head First (Stellman/Greene)
C# Language (Jones)
Step 2: read the cookies (computer OFF)
Step 3: re-read the cookies (computer OFF)
...
Step 121: open computer
Step 122: get the 30 steps to heaven (i.e. hell)
Step 123: shut down computer > change planet
May The Force (the Dark Option) be with you.
…
2. See this? It's a abstract (for the moment) layout of some WIP thing: Imagine a region where "evenly" random points are placed (and then a random zNoise is added) - then a ball-pivot/delauney triangulation is applied ... then ... :
2. I use my method to create "even" points (I suspect that David's is way better/faster/cooler ... but anyway): after a random point is found (inside the region) an additional check is performed: think of the point as a "candidate" that must "pass" a 2nd constrain: if the min distance from all the already found (random) points is smaller than a user defined one > reject and try again (the "try-again" thing [call it: min distance "loops"] is also user controllable). Thus that C# captured attempts to place 122 points but due to (a) the min distance constrain AND (b) the low (about 8 in this case) amount of "try-again" loops it finishes with "only" 59 (not a big deal for this case). The interesting part is that the attempts required are 1573 (~30 times the random points returned). Of course there's a lot of factors affecting this 1573 (variable) thing ... but don't stick to that.
3. So if David uses a "similar" culling method (add some " " more, he he) ... for 80K points ... well we are talking about a BIG number of attempts.
I can provide you with a "no-even" random points C# that (I assume/guess/hope) can speed things a bit (after all: who's gonna notice an "even" random distribution of 80K points within a micro cube?).
best, Peter
…
3d.com/group/anemone). changing a gene will start the loop which iterates for 5 times. The loop will output a mesh at each iteration, however the one we want to optimize is the fifth result. So we have a gate that opens when the iteration reaches 5 and passes both the mesh and the objectives to Octopus.
When running Octopus, we are facing the following:
- Neither the labels of the axes nor the results are appearing in the Octopus solution space, although we have the axes names shown in the axes list.
- Though sometimes octopus is running, it is generating solutions more than the set population ( population of 5 individuals and 3 generation is generating more than 30 individuals and all in generation 1 ).
- Even when reseting Octopus doesn't reset. Octopus adds new individuals/phenotypes to the generation instead of starting fresh
- When it crashes the following is shown in the octopus error log (reduction of environmental selection did not yield the correct archive sizeError), ( I have seen the post by Stan regarding the same error message in the log).
I have attached a diagram showing the overall logic and a screen shots ( which I hope they are clear).
…
The PC actually stops working because after a few seconds the simulation starts the fan inside the PC all of a sudden stops and for the next 5-10 mins I cannot do anything, even alt+ctrl+canc. After I wait for that time i get the followig error:
the ReadMe says:
{0;0;0}0. Grid-based Radiance simulation1. The component is checking ad, as, ar and aa values. This is just to make sure that the results are accurate enough.2. -ar is set to 300.3. Good to go!4. Current working directory is set to: C:\Users\Luigi\Desktop\Prova__\Prova_1\gridBasedSimulation\5. Found a trans material... Resetting st parameter from 0.85 to 0.011276004966. WMIC PROCESS get Commandline7. WMIC PROCESS get Commandline8. WMIC PROCESS get Commandline9. WMIC PROCESS get Commandline10. WMIC PROCESS get Commandline11. WMIC PROCESS get Commandline12. WMIC PROCESS get Commandline13. WMIC PROCESS get Commandline14. WMIC PROCESS get Commandline15. WMIC PROCESS get Commandline16. WMIC PROCESS get Commandline17. WMIC PROCESS get Commandline18. WMIC PROCESS get Commandline19. WMIC PROCESS get Commandline20. WMIC PROCESS get Commandline21. WMIC PROCESS get Commandline22. WMIC PROCESS get Commandline23. WMIC PROCESS get Commandline24. WMIC PROCESS get Commandline25. WMIC PROCESS get Commandline26. WMIC PROCESS get Commandline27. WMIC PROCESS get Commandline28. WMIC PROCESS get Commandline29. WMIC PROCESS get Commandline30. WMIC PROCESS get Commandline31. WMIC PROCESS get Commandline32. WMIC PROCESS get Commandline33. WMIC PROCESS get Commandline34. WMIC PROCESS get Commandline35. WMIC PROCESS get Commandline36. WMIC PROCESS get Commandline37. WMIC PROCESS get Commandline38. WMIC PROCESS get Commandline39. WMIC PROCESS get Commandline40. WMIC PROCESS get Commandline41. WMIC PROCESS get Commandline42. WMIC PROCESS get Commandline43. WMIC PROCESS get Commandline44. WMIC PROCESS get Commandline45. WMIC PROCESS get Commandline46. WMIC PROCESS get Commandline47. WMIC PROCESS get Commandline48. WMIC PROCESS get Commandline49. WMIC PROCESS get Commandline50. WMIC PROCESS get Commandline51. WMIC PROCESS get Commandline52. WMIC PROCESS get Commandline53. WMIC PROCESS get Commandline54. WMIC PROCESS get Commandline55. WMIC PROCESS get Commandline56. WMIC PROCESS get Commandline57. WMIC PROCESS get Commandline58. WMIC PROCESS get Commandline59. WMIC PROCESS get Commandline60. WMIC PROCESS get Commandline61. WMIC PROCESS get Commandline62. WMIC PROCESS get Commandline63. WMIC PROCESS get Commandline64. WMIC PROCESS get Commandline65. WMIC PROCESS get Commandline66. WMIC PROCESS get Commandline67. WMIC PROCESS get Commandline68. WMIC PROCESS get Commandline69. WMIC PROCESS get Commandline70. WMIC PROCESS get Commandline71. WMIC PROCESS get Commandline72. WMIC PROCESS get Commandline73. WMIC PROCESS get Commandline74. WMIC PROCESS get Commandline75. WMIC PROCESS get Commandline76. WMIC PROCESS get Commandline77. WMIC PROCESS get Commandline78. WMIC PROCESS get Commandline79. WMIC PROCESS get Commandline80. WMIC PROCESS get Commandline81. WMIC PROCESS get Commandline82. WMIC PROCESS get Commandline83. WMIC PROCESS get Commandline84. WMIC PROCESS get Commandline85. WMIC PROCESS get Commandline86. WMIC PROCESS get Commandline87. WMIC PROCESS get Commandline88. WMIC PROCESS get Commandline89. WMIC PROCESS get Commandline90. WMIC PROCESS get Commandline91. WMIC PROCESS get Commandline92. WMIC PROCESS get Commandline93. WMIC PROCESS get Commandline94. WMIC PROCESS get Commandline95. WMIC PROCESS get Commandline96. WMIC PROCESS get Commandline97. WMIC PROCESS get Commandline98. WMIC PROCESS get Commandline99. WMIC PROCESS get Commandline100. WMIC PROCESS get Commandline101. WMIC PROCESS get Commandline102. WMIC PROCESS get Commandline103. WMIC PROCESS get Commandline104. WMIC PROCESS get Commandline105. WMIC PROCESS get Commandline106. WMIC PROCESS get Commandline107. WMIC PROCESS get Commandline108. WMIC PROCESS get Commandline109. WMIC PROCESS get Commandline110. WMIC PROCESS get Commandline111. WMIC PROCESS get Commandline112. WMIC PROCESS get Commandline113. WMIC PROCESS get Commandline114. WMIC PROCESS get Commandline115. WMIC PROCESS get Commandline116. WMIC PROCESS get Commandline117. WMIC PROCESS get Commandline118. WMIC PROCESS get Commandline119. WMIC PROCESS get Commandline120. WMIC PROCESS get Commandline121. WMIC PROCESS get Commandline122. WMIC PROCESS get Commandline123. WMIC PROCESS get Commandline124. WMIC PROCESS get Commandline125. WMIC PROCESS get Commandline126. WMIC PROCESS get Commandline127. WMIC PROCESS get Commandline128. WMIC PROCESS get Commandline129. WMIC PROCESS get Commandline130. WMIC PROCESS get Commandline131. WMIC PROCESS get Commandline132. WMIC PROCESS get Commandline133. WMIC PROCESS get Commandline134. WMIC PROCESS get Commandline135. WMIC PROCESS get Commandline136. WMIC PROCESS get Commandline137. WMIC PROCESS get Commandline138. WMIC PROCESS get Commandline139. WMIC PROCESS get Commandline140. WMIC PROCESS get Commandline141. WMIC PROCESS get Commandline142. WMIC PROCESS get Commandline143. WMIC PROCESS get Commandline144. WMIC PROCESS get Commandline145. WMIC PROCESS get Commandline146. WMIC PROCESS get Commandline147. WMIC PROCESS get Commandline148. WMIC PROCESS get Commandline149. WMIC PROCESS get Commandline150. WMIC PROCESS get Commandline151. WMIC PROCESS get Commandline152. WMIC PROCESS get Commandline153. WMIC PROCESS get Commandline154. WMIC PROCESS get Commandline155. WMIC PROCESS get Commandline156. WMIC PROCESS get Commandline157. WMIC PROCESS get Commandline158. WMIC PROCESS get Commandline159. WMIC PROCESS get Commandline160. WMIC PROCESS get Commandline161. WMIC PROCESS get Commandline162. WMIC PROCESS get Commandline163. WMIC PROCESS get Commandline164. WMIC PROCESS get Commandline165. WMIC PROCESS get Commandline166. WMIC PROCESS get Commandline167. WMIC PROCESS get Commandline168. WMIC PROCESS get Commandline169. WMIC PROCESS get Commandline170. WMIC PROCESS get Commandline171. WMIC PROCESS get Commandline172. WMIC PROCESS get Commandline173. WMIC PROCESS get Commandline174. WMIC PROCESS get Commandline175. WMIC PROCESS get Commandline176. WMIC PROCESS get Commandline177. WMIC PROCESS get Commandline178. WMIC PROCESS get Commandline179. WMIC PROCESS get Commandline180. WMIC PROCESS get Commandline181. WMIC PROCESS get Commandline182. WMIC PROCESS get Commandline183. WMIC PROCESS get Commandline184. WMIC PROCESS get Commandline185. WMIC PROCESS get Commandline186. WMIC PROCESS get Commandline187. WMIC PROCESS get Commandline188. WMIC PROCESS get Commandline189. WMIC PROCESS get Commandline190. WMIC PROCESS get Commandline191. WMIC PROCESS get Commandline192. WMIC PROCESS get Commandline193. WMIC PROCESS get Commandline194. WMIC PROCESS get Commandline195. WMIC PROCESS get Commandline196. WMIC PROCESS get Commandline197. WMIC PROCESS get Commandline198. Runtime error (IndexOutOfRangeException): index out of range: 0199. Traceback: line 320, in script
The thing is that if I raise the -aa parameter from 0.05 to 0.1 all works fine..
Is this only related to my PC then?? What should I do to solve this issue?
Thanks again for your help
Luigi…
I am not knowledgeable about google maps nor google maps api, but from what I read the two components will definitely show a bit different results due to different topography sources.If it is judging by this 2010 article, your Terrain Generator component offers much higher precisions for USA. Precision goes up to a couple of meters, which is amazing!!On the global scale it offers either SRTM 1 or 3 arc-second data or 30 arc-second GLOBE data. Again this is from the mentioned article, I couldn't find this information by searching the Google Maps website.Terrain Generator 2 component always uses SRTM 1 arc-second data from opentopography.org, and it is limited to 60 degrees north and does not have data for Antarctica. It does not come with satellite image either which is another very convenient feature that you have!I couldn't find information about the allowed radius provided by the Google maps api free account. I limited the "radius_" input to 100 000 meters, even though opentopography.org provides more than that (I successfully downloaded 300 000, but Rhino 5 was not able to create a topography on my PC from such a large amount of data).Even though I couldn't compare the results from two components, by looking at your upper example_LB_terrain_generator.gh definition: set the "I" input of "Surface from points" component to True. In this way the surface will be interpolated through points, which is what we want.
Again thank you for the permission, and I look forward seeing those high precision topography that Google maps offers!!…
have some spare time please fill in my 3D Printing Open Survey - If you could make almost anything, what would it be ? Updated results are publicly available after completing questionnaire (Please press "Wyślij" - Send button and "Wyniki ankiety" - Results button at the end). This survey will be used to evaluate demand for 3d printing services globally. It consist of 30 questions about: - open-source 3d printers - future of additive manufacturing - 3d printing services - ecology in 3d printing - copyright issues and 3d printing Three example questions: 2. Which of the following 3d printing applications is the most interesting? * - Things personalization - Printing food - Attempts to print structures resembles in functioning living tissues or blood vessels - Creating impossible or difficult to create by using conventional technology things - Printing rooms or buildings on earth/moon - Printing chemical compounds (for example drugs) - Using in renewable energy sources - Printing parts and/or mechanical vehicles 3 . Have you ever heard about cheap DIY 3D Printers (for example RepRap, PrintrBot, MakiBox A6) ? * DIY - Do It Yourself - Yes - No 4 . When 3D Printers will become one of the typical household appliances ? * - After 5 years - After 10 years - After 15 years - After 20 years or later - Never - I don't know Feel free to ask questions!…
r-tools/
the hack is found here: http://fancywires.com/?p=499
it doesn't function the same as it used to, and i wonder if somethings have changed in the functions underlying the VB script or maybe some other updates to GH that are relevant.
furthurmore, i ask if anyone has made advancements on labeling techniques for cnc/laser cutting?
is there anything more built into GH to do this task?
Permalink Reply by Giulio Piacentino on Thursday
Yesterday I was asked a modified version of the script. Now it supports planes, so it should be easier to use.
- Giulio
Permalink Reply by gotjosh on Thursday
Delete
cool! I also recently adapted the old version to use an input plane instead of a point... i'll have to look at your script to see if we made the same solution.
thanks for your reply... is there anyway that your script could take care of the hack that fancywires has made afterwards? it would be great to have each letter returned cleaned and joined, so there were exactly the same number of curves in the output as characters in the input...
i am basically clueless with VB and .net scripting so far, but i can code in AS3 and php, so a small push in the right direction might get me far...
How can one return one single curve in a letter like "O"? Do you mean using single-stroke fonts? Or maybe returning a brep (polysurface) as output?
- Giulio
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