Assigning Textures

s_k_e_t_c_h_y

Hi,
I'm trying to assign textures (the standard ones), but I'm having a bit of trouble as it just shows up as black faces and was hoping for some direction...

In the initialization stage of my class I create a new material as follows;

			@face_material = Sketchup.active_model.materials.add "face_material"

I receive my path from my web dialog with this bit of code

			dialog.add_action_callback("face_material") do |dlg, msg|
				filename = msg
				if File.exists?(filename)
					@face_material.texture = filename
					puts @face_material.texture
				end
			end

Here is the output of the 'puts' statement so I can tell I'm getting the path ok.

@unknownuser said:

C:\Program Files (x86)\SketchUp\SketchUp 2013\Materials\Translucent\Translucent_Glass_Tinted.skm

If I check the face material texture I get nil back so I'm guessing this means that the assignment failed. Is there something about needing say no spaces in the name or needing to double backslash \ the path?

I create the face and assign the front and back sides with the material

							face = @geodesic.entities.add_face @primitive_points[p_num - order], @primitive_points[p_num - order - 1], @primitive_points[p_num]	
							face.material = @face_material
							face.back_material = @face_material

This face turns out to be black instead of what I picked. I've read a few articles on the subject, but can't find my mistake.

Sincerely, Sketchy...

Dan Rathbun

(1) Slashes

Ruby uses forward slashes. Backslashes are used as escape sequences.
Example "\t" is a TAB character, "\n" is a newline.

Either escape (double backslash, or replace with forward slash.)
filepath = msg.gsub('\','/')

(2) Scope

A block delimited with do ... end may has a different scope then a block delimited with { ... }. Generally the curly braced block can see outer variables in more cases than the do ... end block can. So try curlies.

s_k_e_t_c_h_y

Thanks a lot for the feedback Dan

s_k_e_t_c_h_y

Hmmm,
I included your advice and it still does not work. I also tried hardcoding a path (without spaces in case that was it) and it wasn't. The .nil check below is failing

			dialog.add_action_callback("face_material") { |dlg, msg|
				filepath = msg
				if File.exists?(filepath)
					puts filepath
					filepath = msg.gsub('\\','/')
					puts filepath
					@face_material.texture = "C;/a.skm"
					if (@face_material.texture.nil?)
						puts "No worky..."
					end
					puts @face_material.texture
				end
			}

Any ideas as to why I can't assign a path...?

Reference posts....
http://sketchucation.com/forums/viewtopic.php?f=180&t=3100
http://www.thomthom.net/thoughts/2012/03/the-secrets-of-sketchups-materials/

Update:
https://groups.google.com/forum/#!msg/sketchupruby/0St9qMVnro4/TtcTfhOsbHoJ
Apparently you can't add .skm's directly...
http://sketchucation.com/forums/viewtopic.php?f=180&t=32643

Now to find SKMTools... http://sketchucation.com/forums/viewtopic.php?f=180&t=33079

Ok, SKMTools installed....now windows permissions issues in the plug-in directory that SKM needs for temporary writing..... fun night

Most frustrating... Sketchy

jolran

maybe because Dan suggested you do a gsub BEFORE if File.exists?

Note: You can also edit in place gsub!(etc..)

s_k_e_t_c_h_y

Thanks Jolran,
You're right that was a short coming in logic, but it was making it into the 'if' anyway. The issue is you can only use .texture to load images, not skm's. TIG wrote a module to extract a .skm and return the texture within so I'm currently integrating that library.