How to distinguish face size

jolran

Not sure about your rounding method ? round_to ?

Float=>round can take a parameter in Ruby 1.9, not in Ruby 1.8.~

Could be totally wrong here, but it look fishy to me. If I'm wrong (which we soon will see) I've at least learnt something new today..

TIG

Notwithstanding some of the methods you are using to format strings - suggest you look up sprintf etc...

An .xls file is 'binary' and it is specially encoded for Excel to read, as is the newer .xlsx file type.
You on he other hand are writing plain text strings to a file.
It will never work in Excel by writing a file like that.

You have two choices...

Change the file suffix to '.csv', this is a Comma-Separated-Variable format that will open in Excel - it will not have any formating.
You will need to assemble a string including commas separators that you then 'puts' to the file; otherwise you'll have a single column of entries...
You can link a csv file into an xls file dynamically so as you change the csv's contents you can update the xls's display; that way you can format the xls and just use the data from the csv export...

OR if you are on PC you could learn how to access Excel using WIN32OLE.so - I have done it in the past - reading and writing xls files direct BUT it is much more convoluted... You can edit formats, cells and cells contents formulas etc... look up this crib http://davidsulc.com/blog/2011/03/27/using-ruby-and-win32ole-to-manipulate-excel/ there are several others if you Google...

pingpink

Thank you kindly jolran and TIG.

@jolran , I always use round_to and it can run on SU 7,8.
Do I have to change to be ' float ' ?
I'm not expert in ruby.

@TIG , I will study about the export which you suggested to me.

I don't know how to do automatic part-numbers meanwhile changing each colored faces separately , then report sizes , pieces ,and area.

I'm trying to figure it out.

thomthom

@pingpink said:

@jolran , I always use round_to and it can run on SU 7,8.

Then you have a plugin that modifies the base Float class. (which is a big no-no)

If you try it with a plain vanilla installation of SketchUp you get an error:

1.23456.round_to(2) Error: #<NoMethodError: (eval):894: undefined methodround_to' for 1.23456:Float>
(eval):894`

jolran

@unknownuser said:

@jolran , I always use round_to and it can run on SU 7,8.
Do I have to change to be ' float ' ?

Listen to these two guys first and foremost. they know what they are talking about..

In any case look up methods compatible with Ruby 1.8.6~7 . I think SU 7,8 use just about same Ruby versions..

"The Pragmatic Programmer's Guide" should be relative to 1.8 I think, if you have missed that one by a chance. The "round" method is described there as well.

Just bought a Ruby book and half of it was for Ruby 1.9 and up

TIG

For example
sprintf("%.2f", 1.23456) 1.23
This is a String - which will be good for a text-file/report... but
sprintf("%.2f", 1.23456).to_f 1.23
Is a Float again if desired...

ktkoh

I have been looking at rounding calculated dimensions in my woodworking joint program and this is what I came up with. I only accept inches and millimeters as sketchup units and then round the calculations to the precision set for the active model. It is not very compact code but seems to work.

mod = Sketchup.active_model # Open model
ent = mod.entities # All entities in model
sel = mod.selection # Current selection
@num = 1.0
#UI.messagebox("Test Number = " + @num.to_s)

prompts = ["Test Number = "]
defaults = [@num.to_s]
results = inputbox prompts, defaults, "Test Round Function"
if !results then;Sketchup.send_action "selectSelectionTool;";return;end
        
@num = results[0].to_l

#Test Units
@opt_LEN_No = Sketchup.active_model.options["UnitsOptions"]["LengthUnit"]
@opt_Format_No = Sketchup.active_model.options["UnitsOptions"]["LengthFormat"]
@opt_Precision_No = Sketchup.active_model.options["UnitsOptions"]["LengthPrecision"]
      
@opt_Precision_No = @opt_Precision_No.to_s
UI.messagebox("Precision = " + @opt_Precision_No)

case @opt_Precision_No
    when "0"
        if @opt_Format_No == 0 then @round = 1.0 end 
        if @opt_LEN_No == 2 then @round = 0.0393701 end 
        if @opt_Format_No == 3 then @round = 1.0 end 
    when "1"
        if @opt_Format_No == 0 then @round = 0.1 end
        if @opt_LEN_No == 2 then @round = 0.00393701 end
        if @opt_Format_No == 3 then @round = 0.5 end 
    when "2"
        if @opt_Format_No == 0 then @round = 0.01 end
        if @opt_LEN_No == 2 then @round = 0.000393701 end
        if @opt_Format_No == 3 then @round = 0.25 end 
    when "3"
        if @opt_Format_No == 0 then @round = 0.001 end 
        if @opt_LEN_No == 2 then @round = 0.0000393701 end
        if @opt_Format_No == 3 then @round = 0.125 end 
     when "4"
        if @opt_Format_No == 0 then @round = 0.0001 end
        if @opt_LEN_No == 2 then @round = 0.00000393701 end
        if @opt_Format_No == 3 then @round = 0.0625 end 
     when "5"
        if @opt_Format_No == 0 then @round = 0.00001 end
        if @opt_LEN_No == 2 then @round = 0.000000393701 end
        if @opt_Format_No == 3 then @round = 0.03125 end 
    when "6"
         if @opt_Format_No == 0 then @round = 0.000001 end 
         if @opt_LEN_No == 2 then @round = 0.0000000393701 end
         if @opt_Format_No == 3 then @round = 0.015625 end           
end #case
UI.messagebox("Round To = " + @round.to_s)
@num_R = ((@num + (@round/2.0))/@round).to_i*@round
UI.messagebox(@num.to_s + " Round to  " + @round.to_l.to_s + " = " + @num_R.to_l.to_s)
Sketchup.active_model.entities.add_line [@num_R,0,0],[@num_R,@num_R,0]

Keith

TIG

@pingpig

I think you miss the point a bit.
Float.round_to()
does not exist as a standard method for the version of Ruby that ships with SketchUp.
Therefore is you are not making it yourself by adding to the standard methods - which is generally advised against, and alternative ways are recommended - then you must have another script loading that creates that method. Thus if you don't have that script loading, or another user of your script doesn't have it the ' round_to' method will break and the script will fail with errors...
The example you posted extends/modifies the Float base class in a number of ways [unwisely] - some methods are not needed - e.g. Float.abs - because these come built-in to Ruby ! Sketchup also adds its own additional functions to convert to and from radians, and numeric ways of dealing with lengths etc... Please read the API documents... AND some general Ruby help publications... Dan Rathbun has provided several good threads and links at SCF that will help you...

My example of the ' sprintf()' uses a simple built-in Ruby method that is used for formating floats in several ways - typically into strings at a fixed d.p., although you can convert that back into a 'rounded' float if desired using .to_f...

Dan Rathbun

The post of that modification of Fixnum should be removed! (It is very poorly done.. overrides base methods, some of which return float instead of integer.)

pingpink

Thank you very much !

Actually , I refer "round_to" in a class Fixnum below my main codes. I don't see any error.

It's my new knowledge about sprintf("%.2f", 1.23456)

[ruby]class Fixnum
  def abs
    rx = self
	if rx < 0
	  rx = -rx
	end 
    return rx
  end
  
  def to_meter
    ufactor = 1.m
	rx = (self) / ufactor
	return rx
  end
  
  def round_to(x)
    (self * 10**x).round.to_f / 10**x
  end

  def ceil_to(x)
    (self * 10**x).ceil.to_f / 10**x
  end

  def floor_to(x)
    (self * 10**x).floor.to_f / 10**x
  end
  def rad_to_deg
    (self / Math;;PI) * 180.0 
  end
  
  def deg_to_rad
    (self * Math;;PI) / 180.0 
  end
  
  def comma_format
    s = self.to_s
    if s.include? ?.
        pre, post = s.split '.'
        "#{pre.reverse.gsub( /\d{3}(?=\d)/, '\&,' ).reverse}.#{post}"
    else
        s.reverse.gsub( /\d{3}(?=\d)/, '\&,' ).reverse
    end
  end  
end

[/ruby][/code]