Beginning Ruby Tutorial

Chris Fullmer

That is not in the turorial, but it will be in a future one I hope. The idea there is implementing a tool class in your script. I can write up a quick start template, but I can't get too in depth right now. Hopefully alter in a tutorial though.

Chris

PS I think the tutorials are open to anyone to write at this point. If aynone out there wants to do a better on, or do one on a different topic, they are more than welcome to go for it! I think we might need a new tutorial template though for Ruby tutorials. The current one is very little text and very much image - not ideal for Ruby. Maybe I'll outline what I think a Ruby tutorials might need, and then see if Coen has time to implement it eventually.

pilou

Neat presentation!

MALAISE

Yeah! An Ruby introduction for Sketchup fans .

Thanks a lot Chris, for listening poor newbies !

MALAISE

plot-paris

thanks Chris. that's really great. hopefully I will have time soon to check it out. such a tutorial was dearly deeded for noobs like me to get started

mateo soletic

Great work Chris, that kind of tutorial was really needed.

@unknownuser said:

Small typo, second paragragh thats all

James,you are slacking.

sepo

Looks very good. This might tip me finally to start doing something about it.

MALAISE

Hi Chris

Is-it possible to resize the Web console "window"? We hardly read the contain ( too small font)

Thanks

MALAISE

dale

Thanks Chris
I have really always wanted to give it a try, or at least understand Rubys in greater depth.
Thanks for the effort.

Chris Fullmer

Thanks for the great comments, I hope it gets more people interested in beginning. I'm sure there are other roads to take to get into Ruby, but thats how I did it, so its the only way I can explain. Hopefully it will be logical enough for others to use too.

Malaise, sorry the font is small. If you click on most of the images, it shows a full size image. But if the full size image is too small also...hmm. I don't know. I bet I could also provide a link to the .rb script for download right up front, for people who can't read the images very well.

But if I provide the link to the text script, its not a free pass to just copy and paste

Chris

Chris Fullmer

@BTM (and anyone interested) I did go ahead and write up a quick tool script that creates a tool, which is how you get the onmousemove and all other tool methods to work. Check it out here:

http://www.sketchucation.com/forums/scf/viewtopic.php?f=180&t=18801

Al Hart

Chris,

Thanks for making a ruby tutorial.

Its always inspiring to look at someone else's code.

Here is a version which use a hash instead of arrays to count all entities types;


def count_entities
	model = Sketchup.active_model
	entities = model.entities
	count = {} # start a new hash
	entities.each do |e|
		stype = e.typename
		# start new count, or add 1 to existing count
		count[stype] = count[stype] ? count[stype] + 1 ; 1
	end#loop
	sorted_keys = count.keys.sort
	sorted_keys.each do |key|
		printf("Total %-12s; %5d\n", key, count[key])
	end#loop
	return nil
end#def

The weird line:

count[stype] = count[stype] ? count[stype] + 1 : 1

would be easier to read as


if (count[stype])
    count[stype] = count[stype] + 1
else
    count[stype] = 1
end#if

Keep up the good work