cture, Rhino treats them as a single flat list. For example a surface can have 10 rows and 6 columns of control-points, resulting in a list of 60 points.
But 10 times 6 isn't the only way to get to 60. If you want to make a surface out of a list of 60 points, you'll also have to tell Rhino how those 60 points should be interpreted in terms of a grid. It could be 2*30, 3*20, 4*15, 5*12, 6*10, and all of the aforementioned products the other way around.
Sometimes there's only one way for a number of points to fit into a rectangular grid. For example if you provide 49 points, then 7*7 is the only way to make it work, but these cases are rare so we always demand you give us all the information required to actually make a rectangular grid of control-points from a linear collection.
As for "Why is it, sometimes we need to attach additional value into it?", this is usually because when you divide a domain or a curve into N segments, you end up with N+1 points. For example take the domain {0 to 5}, and divide it into 5 equal subdomains. You end up with {0 to 1}, {1 to 2}, {2 to 3}, {3 to 4} and {4 to 5}. However there are six numbers that mark the transitions between these domains 0, 1, 2, 3, 4 and 5. This is why you often have to add 1 to the UCount, because the number that controls the UCount often results in N+1 actual points.…
Added by David Rutten at 8:30am on December 25, 2014
ouldn't the surface component only accept the number 8? it accepts 5 and 7. the grid is 7 points in the x direction and 5 points in the y direction. so shouldn't the u count be either 6 or 8?
it works with the u count at 5. i just don't understand why.
thank you so much for your patience with my questions.
…
Added by pwdarden to gHowl at 6:18pm on September 21, 2013
Branch Address in the form {0;1;2;3;4;5;6;7;8;9;.......;N}
Try Grafting the input (I) Create Path by right clicking on it and selecting graft from the context menu…
in the desired order.
0 = 0
1 = 1
2 = 6
3 = 7
4 = 8
5 = 9
6 = 12
7 = 13
8 = 2
9 = 3
10 = 4
11 = 5
12 = 10
13 = 11
Where the first number is the index and the second number is the actual sorting key. Then you sort these keys while sorting your curves in parallel using the A input of the Sort component.
--
David Rutten
david@mcneel.com
Poprad, Slovakia…
NONE, in SIZING:PARAMETERS". I'm not sure of where to start in troubleshooting this. I've attached the file.
Thank you,
See the errors and warnings below:
{0;0;0}
0. Current document units is in Meters
1. Conversion to Meters will be applied = 1.000
2. [1 of 8] Writing simulation parameters...
3. [2 of 8] Writing context surfaces...
4. [2 of 8] Writing context surfaces...
5. [3 of 8] Writing geometry...
6. [4 of 8] Writing Electric Load Center - Generator specifications ...
7. [5 of 8] Writing materials and constructions...
8. [6 of 8] Writing schedules...
9. [7 of 8] Writing loads and ideal air system...
10. [8 of 8] Writing outputs...
11. ...
... idf file is successfully written to : R:\Green\SuRG\Building_Performance_Analysis\2016_analysis_studies\Energy_Analysis_Comparison\Honeybee_+_Ladybug\tutorial01\EnergyPlus\tutorial01.idf
12.
13. Analysis is running!...
14. ...
...
Done! Read below for errors and warnings:
15.
16. Program Version,EnergyPlus, Version 8.5.0-c87e61b44b, YMD=2016.10.31 11:39,IDD_Version 8.5.0
17.
18. ************* IDF Context for following error/warning message:
19.
20. ************* Note -- lines truncated at 300 characters, if necessary...
21.
22. ************* 24 Sizing:Parameters,
23.
24. ************* Only last 1 lines before error line shown.....
25.
26. ************* 25 None, !- Heating Sizing Factor
27.
28. ** Severe ** IP: IDF line~25 Invalid Number in Numeric Field#1 (Heating Sizing Factor), value=NONE, in SIZING:PARAMETERS
29.
30. ** Warning ** IP: Note -- Some missing fields have been filled with defaults. See the audit output file for details.
31.
32. ** ~~~ ** Possible Invalid Numerics or other problems
33.
34. ** Fatal ** IP: Errors occurred on processing IDF file. Preceding condition(s) cause termination.
35.
36. ...Summary of Errors that led to program termination:
37.
38. ..... Reference severe error count=1
39.
40. ..... Last severe error=IP: IDF line~
, value=NONE, in SIZING:PARAMETERS
41.
42. ************* Warning: Node connection errors not checked - most system input has not been read (see previous warning).
43.
44. ************* Fatal error -- final processing. Program exited before simulations began. See previous error messages.
45.
46. ************* EnergyPlus Warmup Error Summary. During Warmup: 0 Warning; 0 Severe Errors.
47.
48. ************* EnergyPlus Sizing Error Summary. During Sizing: 0 Warning; 0 Severe Errors.
49.
50. ************* EnergyPlus Terminated--Fatal Error Detected. 1 Warning; 1 Severe Errors; Elapsed Time=00hr 00min 9.34sec
51.…