Chris's Page

David Rutten replied to Chris's discussion Units and Precision?

"Numbers are not always related to distances, whereas the Rhino tolerance settings are. You could have two points that are further apart than a tolerance of 0.01 units, however when you project them onto a curve the difference between their…"

Feb 4

Hannes Löschke replied to Chris's discussion Units and Precision?

"I see you point but let me play devil's advocate here. GH isn't MATLAB, it's a tool to manipulate Rhino geometry. All Rhino geometry is bound to the document tolerance. No numeric value should be expected to have more precision than…"

Feb 4

David Rutten replied to Chris's discussion Units and Precision?

"The problem isn't speed, it's predictability. I can set an arbitrary tolerance for floating point comparisons but there will always be people with even less accurate numbers or people who have more accurate numbers and require that…"

Feb 4

Justin Diles replied to Chris's discussion Units and Precision?

"David: Please take a look at the attached file if you have the chance. The edge lengths of the Reoriented Mesh have been rounded or are distorted from the original. I know that it is very slight, but I am trying to match shared edges in a…"

Feb 3

Hannes Löschke replied to Chris's discussion Units and Precision?

"Ok, but what about the math components? I mean, most cases people actually need the equality component for numbers they don't want to compare numbers to the last significant digit. It just happens to work sometimes and if not, people end up…"

Feb 3

David Rutten replied to Chris's discussion Units and Precision?

"Similarity sort of does this, but with a relative tolerance rather than an absolute one. -- David Rutten david@mcneel.com Poprad, Slovakia"

Feb 3

Hannes Löschke replied to Chris's discussion Units and Precision?

"Any floating point operation is limited to the precision of double floating numbers (a bit more than 15 significant figures). So any math operation will produce inaccuracies. In order to compare two floating point values, you should calculate the…"

Feb 3

Justin Diles replied to Chris's discussion Units and Precision?

"Thanks David. I think I've got it. Unfortunately, this does not solve my real problem since the Orient (Change Basis Transformation) component seems to subtly change the length of objects. No matter how accurately I view the…"

Feb 3

David Rutten replied to Chris's discussion Units and Precision?

"Yes, formatting has never changed as it works in the same way as standard .NET formatting. Formatting rules are somewhat obscure but they are consistent and quite flexible. Basically your formatting string may contain any number of curly bracket…"

Feb 3

Justin Diles replied to Chris's discussion Units and Precision?

"Hi Giulio: I am following your formatting exactly, but get an error. Does the Evaluate component still work the same way in the latest version of Grasshopper? Thanks! Justin"

Feb 3

Aleksandar Dimitrov replied to Chris's discussion round off numbers?

"thanks also from my side :)"

Jan 3

Danny Boyes replied to Chris's discussion round off numbers?

"There is a Round component in the Maths Tab > Utility Panel which has three outputs N = normal, 4.3 --> 4 & 4.6 --> 5 F = Floor, 4.3 --> 4 & 4.6 --> 4 C = Ceiling, 4.3 --> 5 & 4.6 --> 5"

Aug 17, 2012

Tim Crawshaw replied to Chris's discussion round off numbers?

"Dave How do you get grasshopper to ROUNDUP or ROUNDDOWN.... this works in other software such as Revit but I can't seem to find the correct code (or maybe it doesn't exist) thanks t"

Aug 17, 2012

Danny Boyes replied to Chris's discussion round off numbers?

"What version are you using?"

Jul 18, 2011

Danny Boyes replied to Chris's discussion round off numbers?

"I thought this might make a useful GH_User component so here is. It includes Floor and Ceiling functionality like the existing Rounding component."

May 26, 2011