9 8 7 6
5 4 3 2 1 0
I am triangulating this surface. I want to select just the red vertices. As you can note, I just need the inner vertices of this surface. I could do it mannually, but if I want to change the mesh density later, I will have to pick all of them manually again later.
Can someone help me?
Tks
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(18, 11, 0, 17), also put in the assembly component.
How can I know which value of the reaction forces correspond to which support?
In the manual is stated that when the reaction force component is used, than the values are displayed in ascending sequence of the corresponding nodes.So if I input the support nodes like thispoint with index 18point with index 11point with index 0point with index 17are the reaction forces displayed like this (per loadcase)?0 - reaction forces in point with index 01 - reaction forces in point with index 112 - reaction forces in point with index 183 - reaction forces in point with index 17
Thanks!
BestLara…
he default for Rhino, degree=5 gives you smoother curves, but each control point matters less, degree=11 is the highest degree Rhino allows. Apart from 2, degrees tend to be odd rather than even, though Rhino supports both.
In addition to the degree and the control points, Nurbs curves have knots. A single knot is just a number, and the list of all knots is called the knot-vector of a curve. The number of knots depends on both the degree and the control-point count, and the spacing of the knots affects the shape of the curve a little bit. If there are <degree> knots with the same value, then the curve is somewhat discontinuous at that location which could manifest itself as a kink or as a clamped end-point. However it is not possible by just looking at the shape of a curve to say where stacked knots might be, but you can use the Rhino _List command to inspect all details of a Nurbs curve.…
imilar topic with a Windows 10 user, which successfully fixed this issue.If you are tiny little patient, I think we can try the same steps in your Windows 7 case.For start, try these three steps:1) Close Rhino. Restart your PC. 2) Once the PC boots up, double click on the "regMapWinGIS.cmd" file in "MapWinGIS" installation folder.3) When it closes the Command Prompt window it opened, try running Rhino, Grasshopper and drop the "Gismo Gismo" component on the canvas (Grasshopper working area).If this does not help (you get the same COM class factory CLSID error message coming out from the "Gismo Gismo" component), then try the following steps, one by one:
1) Close Grasshopper and Rhino2) Run the Revo Uninstaller Pro and uninstall your MapWinGIS application along with removing all the leftovers from the registry. You can download 30 days trial version of it from here. Here is a youtube example of a bit older Revo Uninstaller. But the important part is that is shows how registry leftovers are removed.3) Restart your PC, and once it boots again, make sure that you are logged in as an Adminstrator!4) In your Start menu's search box type: "UAC", which will find your User Account Control Settings. Click on it, and a new window will open. Set the bar on the left to "Never notify".5) Turn off your Antivirus, which ever it is.6) Download the 64 bit version of v4.9.4.2 MapWinGIS.7) Right click on downloaded MapWinGIS-only-v4.9.4.2-x64.exe file, and choose "Properties". If there is "Unblock" button click on it, and then click on "OK". If there is no "Unblock" button, just click on "OK".8) Left double click on MapWinGIS-only-v4.9.4.2-x64.exe file and install it to "C:\dev\MapWinGIS" folder. Choose "Full installation" during installation process!9) In your Start menu's search box type: "CMD". Once the "Command prompt" appears do not left click on it! Instead right click on it, and choose "Run as Administrator".10) A command prompt window will open. Type the following command:
"your_regsvr32_folder_path\regsvr32.exe" /u /s c:\dev\mapwingis\mapwingis.ocx
If command does not result in an error message, then type this one afterwards:
"your_regsvr32_folder_path\regsvr32.exe" /s c:\dev\mapwingis\mapwingis.ocx
11) If no error appeared again, then open your Rhino and Grasshopper and check what "Gismo Gismo" component prints from its "readMe!" output.If errors appeared, please post their screenshots. Thank you in advance.
Please accept my apologies for the large number of steps. Some of them are quite simple actually (click on this, download that...).…
Added by djordje to Gismo at 12:58pm on November 28, 2017
ay be other issues with your geometry, but this is usually the issue people run into.)
Rays will lose energy much more slowly when a room is very reflective, but such conditions only really exist with polished painted concrete. I don't know how many such rooms you've ever been in. I can count them on one hand - and I've been to acoustic reverberation chambers on 3 continents.
Pachyderm works with a ray decimation algorithm. This means that a ray will be traced out to the cutoff time, unless it has lost enough energy that its further contribution to the impulse response is negligible. At this time, the ray is discontinued. So, the more absorption in the room, the less time it will take to run the simulation. So, more realistic absorption coefficients will allow a model to run in a more reasonable amount of time.
Gypsum board/Plasterboard will typically be between 8 and 11 percent at mid and high frequencies, and higher at low frequencies, for example. Concrete, unless polished and painted, is still a little porous, so you can probably make it 3 to 5 percent.
Regarding sources and receivers, adding more receivers adds almost nothing to calculation time (until the every end, when it extrapolates a pressure response, anyway). This is because the receivers are entered into a spatial partition system, which allows it to be done in an optimized way. Adding multiple sources will effectively multiply the calculation time by the number of sources, because the simulation needs to be repeated for each source individually.
Hopefully this helps you figure out how to run simulations with reasonable run times.
Arthur…
0 to x14 and high from y0 to y24 , on the plane you set.
(The "Rectangle" component wants a plane in "P", and because you connected the center point of the previous rectangle, it automatically convert that point to a new XY(world) plane with origin on that point)
You have to work like this then:
X= -5.5 to +5.5 (on the new centered plane)
Y= -12 to +12 (on the new centered plane)
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ore limited way to achieve similar results.Specifically I am looking for a way to apply a transformation (not necessarily geometric, but a general one) to a data stream a pre-defined number of times, and collect all the partial results. For example, take a point, apply the transformation "rotate by 30 degrees around the origin" 11 times to get 12 points on a circle (of course this specific problem can be solved in other ways, it is just an illustration of what I mean). This would allow creating fractal-like structures.An unrelated question: is there a built-in constant for π (pi), or is it necessary to type the value explicitly every time when setting it as a number somewhere?…