how to set up this kind of model - Grasshopper2024-03-28T12:04:31Zhttps://www.grasshopper3d.com/forum/topics/how-to-set-up-this-kind-of-model?groupUrl=ladybug&commentId=2985220%3AComment%3A1095087&x=1&feed=yes&xn_auth=nowow.. that was great convers…tag:www.grasshopper3d.com,2014-06-29:2985220:Comment:10950872014-06-29T08:31:13.888Zmohammadhttps://www.grasshopper3d.com/profile/mohammad447
<p>wow.. that was great conversation<br/>I learn it a lot,<br/>just about ab value most of the time i use 5..<br/>Dear Mostapha, thank you</p>
<p>wow.. that was great conversation<br/>I learn it a lot,<br/>just about ab value most of the time i use 5..<br/>Dear Mostapha, thank you</p> Hi Petar,
You can introduce t…tag:www.grasshopper3d.com,2014-03-20:2985220:Comment:10291242014-03-20T02:51:17.452ZMostapha Sadeghipour Roudsarihttps://www.grasshopper3d.com/profile/MostaphaSadeghipour
<p>Hi Petar,</p>
<p>You can introduce the sky for gridBased and imageBased analysis using the _skyFile input:</p>
<p style="text-align: center;"><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768878082?profile=original" target="_self"><img class="align-center" src="http://storage.ning.com/topology/rest/1.0/file/get/2768878082?profile=RESIZE_1024x1024" width="500"></img></a></p>
<p>For other analysis types the skies are special and that's why they have their own recipe.</p>
<p></p>
<p>Daylight Factor and Vertical Sky Component are using cloudy (overcast) sky as default. You can use uniform sky as an…</p>
<p>Hi Petar,</p>
<p>You can introduce the sky for gridBased and imageBased analysis using the _skyFile input:</p>
<p style="text-align: center;"><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768878082?profile=original" target="_self"><img width="500" src="http://storage.ning.com/topology/rest/1.0/file/get/2768878082?profile=RESIZE_1024x1024" width="500" class="align-center"/></a></p>
<p>For other analysis types the skies are special and that's why they have their own recipe.</p>
<p></p>
<p>Daylight Factor and Vertical Sky Component are using cloudy (overcast) sky as default. You can use uniform sky as an alternative if you want by setting the input to True.</p>
<p></p>
<p>For the annual analysis, Daysim takes care of generating the sky. You don't need to generate the sky for each hour as this is exactly what Daysim does.</p>
<p></p>
<p>If you want to watch the sky for every hour of the year you can use Ladybug genCumulativeSky, selectSkyMtx and skyDome similar to what I showed in this video (minute 1:15): (<a href="https://www.youtube.com/watch?v=s3stJVyaRmg" target="_blank">https://www.youtube.com/watch?v=s3stJVyaRmg</a>). There is an example file for ladybug that called real time radiation analysis that may also help.</p>
<p></p>
<p>Hope it helps,</p>
<p></p>
<p>Let me know if you have any other questions.</p>
<p></p>
<p>Mostapha</p>
<p></p> Dear Mostapha, thank you for…tag:www.grasshopper3d.com,2014-03-19:2985220:Comment:10287272014-03-19T10:29:51.727ZPetar Pejichttps://www.grasshopper3d.com/profile/PetarPejic
<p>Dear Mostapha, thank you for your kind explanation. </p>
<p>I am a little bit confused now, and I would like to ask some more things:</p>
<p>Which sky is used by default for daylight analysis, and how can I influence this? I understand I can create multiple conditions of the sky (with or without the sun), but where I introduce it into, for example, annual daylight simulation? Also, as I understand, I can create sky for specific day and time of day, while annual simulation is running for the…</p>
<p>Dear Mostapha, thank you for your kind explanation. </p>
<p>I am a little bit confused now, and I would like to ask some more things:</p>
<p>Which sky is used by default for daylight analysis, and how can I influence this? I understand I can create multiple conditions of the sky (with or without the sun), but where I introduce it into, for example, annual daylight simulation? Also, as I understand, I can create sky for specific day and time of day, while annual simulation is running for the whole year, and after it's done I can extract specific condition for specific time and day as well. Should I create a series of 365 skies, each with 24 variation for this kind of simulation?</p> It is a value between 0 and 1…tag:www.grasshopper3d.com,2014-03-19:2985220:Comment:10285322014-03-19T01:34:44.038ZMostapha Sadeghipour Roudsarihttps://www.grasshopper3d.com/profile/MostaphaSadeghipour
<p>It is a value between 0 and 1 that indicates the percentage of the light which will be diffusely reflected from the surface. I think I suggested two resources if you hover your mouse on the component or check the help.</p>
<p>It is a value between 0 and 1 that indicates the percentage of the light which will be diffusely reflected from the surface. I think I suggested two resources if you hover your mouse on the component or check the help.</p> Very very good questions Peta…tag:www.grasshopper3d.com,2014-03-19:2985220:Comment:10282972014-03-19T01:32:43.297ZMostapha Sadeghipour Roudsarihttps://www.grasshopper3d.com/profile/MostaphaSadeghipour
<p>Very very good questions Petar. Good to see that Honeybee has users like you.</p>
<p>1. It is up to you as a designer to make the decision about using skylight vs direct sunlight or mix of them. It is about the space that you are designing and your design intent. Just think about an atrium vs a museum. And now think of the atrium in two different climate zones. As a [lighting] designer you make the decision on how do you want the space to be, how the climate is and then try to take advantage…</p>
<p>Very very good questions Petar. Good to see that Honeybee has users like you.</p>
<p>1. It is up to you as a designer to make the decision about using skylight vs direct sunlight or mix of them. It is about the space that you are designing and your design intent. Just think about an atrium vs a museum. And now think of the atrium in two different climate zones. As a [lighting] designer you make the decision on how do you want the space to be, how the climate is and then try to take advantage of skylight and/or direct sunlight to achieve your design goals.</p>
<p></p>
<p>2. Yes. There is a watchTheSky component next to sky types which let you visualize the sky. There is also an example file that you can check.</p>
<p></p>
<p style="text-align: center;"><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768876270?profile=original" target="_self"><img width="721" src="http://storage.ning.com/topology/rest/1.0/file/get/2768876270?profile=RESIZE_1024x1024" width="721" class="align-center"/></a></p>
<p>3. This one again depends on your model. For your model I would suggest a minimum number of 4 for your final analysis. -ab is only one of the parameters. Check this <a href="http://www.radiance-online.org/community/workshops/2011-berkeley-ca/presentations/day1/JM_AmbientCalculation.pdf">slides</a> by <a href="http://www.radiance-online.org/community/workshops/2011-berkeley-ca/photos/img0006.jpg">John Mardaljevic</a> if you want to have a better understanding of radiance parameters and their effect on the results.</p>
<p>I also added the link to "Tutorial on the Use of Daysim Simulations for Sustainable Design" by Christoph Reinhart to <a href="http://www.grasshopper3d.com/group/ladybug/page/ladybug-teaching-resources" target="_blank">teaching materials</a>. I encourage you to at least read chapters 1 and 2 of the tutorial. Check pages 25 and 27 have two examples about selecting the parameters.</p>
<p>Great questions. Keep them coming.</p>
<p>Mostapha</p> Very very good questions Peta…tag:www.grasshopper3d.com,2014-03-19:2985220:Comment:10285312014-03-19T01:32:24.261ZMostapha Sadeghipour Roudsarihttps://www.grasshopper3d.com/profile/MostaphaSadeghipour
<p>Very very good questions Petar. Good to see that Honeybee has users like you.</p>
<p>1. It is up to you as a designer to make the decision about using skylight vs direct sunlight or mix of them. It is about the space that you are designing and your design intent. Just think about an atrium vs a museum. And now think of the atrium in two different climate zones. As a [lighting] designer you make the decision on how do you want the space to be, how the climate is and then try to take advantage…</p>
<p>Very very good questions Petar. Good to see that Honeybee has users like you.</p>
<p>1. It is up to you as a designer to make the decision about using skylight vs direct sunlight or mix of them. It is about the space that you are designing and your design intent. Just think about an atrium vs a museum. And now think of the atrium in two different climate zones. As a [lighting] designer you make the decision on how do you want the space to be, how the climate is and then try to take advantage of skylight and/or direct sunlight to achieve your design goals.</p>
<p></p>
<p>2. Yes. There is a watchTheSky component next to sky types which let you visualize the sky. There is also an example file that you can check.</p>
<p></p>
<p style="text-align: center;"><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768876270?profile=original" target="_self"><img width="721" src="http://storage.ning.com/topology/rest/1.0/file/get/2768876270?profile=RESIZE_1024x1024" width="721" class="align-center"/></a></p>
<p>3. This one again depends on your model. For your model I would suggest a minimum number of 4 for your final analysis. -ab is only one of the parameters. Check this <a href="http://www.radiance-online.org/community/workshops/2011-berkeley-ca/presentations/day1/JM_AmbientCalculation.pdf">slides</a> by <a href="http://www.radiance-online.org/community/workshops/2011-berkeley-ca/photos/img0006.jpg">John Mardaljevic</a> if you want to have a better understanding of radiance parameters and their effect on the results.</p>
<p>I also added the link to "Tutorial on the Use of Daysim Simulations for Sustainable Design" by Christoph Reinhart to <a href="http://www.grasshopper3d.com/group/ladybug/page/ladybug-teaching-resources" target="_blank">teaching materials</a>. I encourage you to at least read chapters 1 and 2 of the tutorial. Check pages 25 and 27 have two examples about selecting the parameters.</p>
<p>Great questions. Keep them coming.</p>
<p>Mostapha</p> Also, what the is the value o…tag:www.grasshopper3d.com,2014-03-18:2985220:Comment:10283482014-03-18T19:49:26.868ZPetar Pejichttps://www.grasshopper3d.com/profile/PetarPejic
<p>Also, what the is the value of relfctance value of opaque material. is it multiplied by 100 and translated into percentage? </p>
<p>Also, what the is the value of relfctance value of opaque material. is it multiplied by 100 and translated into percentage? </p> Mostapha, let me ask you few…tag:www.grasshopper3d.com,2014-03-18:2985220:Comment:10282292014-03-18T15:32:20.472ZPetar Pejichttps://www.grasshopper3d.com/profile/PetarPejic
<p>Mostapha, let me ask you few practical questions:</p>
<p>For daylight analysis, it is important to use the skylight and not direct sunlight?</p>
<p>Is is possible to visualize the sky which is used for analysis?</p>
<p>How many light bounces are used (or should be used) for daylight analysis? (Since I have seen you can change rad analysis parameters)</p>
<p>I hope this questions are not too banal.</p>
<p>Regards,</p>
<p>Petar</p>
<p>Mostapha, let me ask you few practical questions:</p>
<p>For daylight analysis, it is important to use the skylight and not direct sunlight?</p>
<p>Is is possible to visualize the sky which is used for analysis?</p>
<p>How many light bounces are used (or should be used) for daylight analysis? (Since I have seen you can change rad analysis parameters)</p>
<p>I hope this questions are not too banal.</p>
<p>Regards,</p>
<p>Petar</p> Dear Mostapha,
Thank you for…tag:www.grasshopper3d.com,2014-03-17:2985220:Comment:10274202014-03-17T14:35:10.411ZPetar Pejichttps://www.grasshopper3d.com/profile/PetarPejic
<p>Dear Mostapha,</p>
<p>Thank you for the example file, I hope it will be useful. Anyway, no need to rush, I was just asking roughly time, feel free to do it when it suits you the most. You have already provided so much to the community.</p>
<p>Regards,</p>
<p>Petar</p>
<p>Dear Mostapha,</p>
<p>Thank you for the example file, I hope it will be useful. Anyway, no need to rush, I was just asking roughly time, feel free to do it when it suits you the most. You have already provided so much to the community.</p>
<p>Regards,</p>
<p>Petar</p> Hi Petar, Check the attached…tag:www.grasshopper3d.com,2014-03-16:2985220:Comment:10267272014-03-16T04:52:01.898ZMostapha Sadeghipour Roudsarihttps://www.grasshopper3d.com/profile/MostaphaSadeghipour
<p>Hi Petar, Check the attached file. It is so late right now to capture a video. I will try to do it tomorrow. The file should be good enough to get you started. -Mostapha</p>
<p style="text-align: center;"><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768878486?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/2768878486?profile=original" width="589" class="align-center"/></a></p>
<p>Hi Petar, Check the attached file. It is so late right now to capture a video. I will try to do it tomorrow. The file should be good enough to get you started. -Mostapha</p>
<p style="text-align: center;"><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768878486?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/2768878486?profile=original" width="589" class="align-center"/></a></p>