How to use Ruby API
-
Thanks guys. Will work on this later tonight after I get home. About the lowercase, if the def is inside a module, will it make a difference?
This runs ok on my system:
require 'sketchup.rb' module WMY_putdxf def WMY_putdxf.main model = Sketchup.active_model # make db of active model entities = model.active_entities selection = model.selection # make db of selections if model.selection.empty? entities = model.active_entities else entities = model.selection end # test if selection made entities.each do |e| # do loop through database and place entities in type array if e.is_a? Sketchup;;ComponentInstance #comp_file_name=e.definition.name name=e.definition.name#e.typename faces=e.definition.entities WMY_putdxf.get_faces(name,faces) end end end # .main method def WMY_putdxf.get_faces(name,faces)# procedure or method faces.each do |e| info = e.typename if e.is_a? Sketchup;;Face UI.messagebox(name+"; "+info) end #ednif end #end do end end # WMY_putdxf module #----------------menu------------------ if !file_loaded?(__FILE__) #_FILE_ permits renaming the file UI.menu("Plugins").add_item("Yet Another Test") { WMY_putdxf.main } end file_loaded(__FILE__)But with WMY_ as wmy_ this error message:
Error Loading File yet_another_script.rb
C:/PROGRA~1/Google/GO2494~1/Plugins/yet_another_script.rb:3: class/module name must be CONSTANTSorry for the uneven indenting, when I copy from notepad++ and paste, the indent spacing changes.
-
module names always must start with a capital letter. methods do not start with a cap. Classes start with a cap. That is the basic rule. Constants are variables that start with a capital letter, and should remain constant - like Pi.
Chris
-
@chris fullmer said:
module names always must start with a capital letter. methods do not start with a cap. Classes start with a cap. That is the basic rule. Constants are variables that start with a capital letter, and should remain constant - like Pi.
Chris
Normal convention is to type constants in all caps.
-
Sorry for the confusion
- I didn't realise there was an enclosing module / class. They need initial CAPITAL letter; whereas defs and variables need lowercase. Consonants ion caps e.g. ORIGIN... -
OK I am stuck again. Problem is with the last box of code below:
This is the main proc, methods below are at the bottom of the code in this section:
model = Sketchup.active_model entities = model.active_entities selection = model.selection if model.selection.empty? entities = model.active_entities else entities = model.selection end entities.each do |e| if e.is_a? Sketchup;;ComponentInstance the_name=e.definition.name stuff=e.definition.entities counter=0 faces=[] stuff.each do |e| if e.is_a? Sketchup;;Face counter=counter+1 faces.push e end ###if end ###loop points=[] add_face_vert_to_file(faces,points) make_comp_face_file(the_name,faces,counter,model,points) end ###if end ###loopMethod to make a collection of face.vertices
###make vertices file of faces in component def add_face_vert_to_file(faces,points) faces.each do |e| points.push e.vertices end ###end loop endMethod to make empty text file, then (where I fail) to take the face.vertices and copy them as string to the text file.
###create file ComponentName.txt def make_comp_face_file(the_name,faces,counter,model,points) the_line=the_name+" ",counter," faces" UI.messagebox(the_line) model_filename = File.basename(model.path) path=File.dirname(model.path)+"\\" out_name=the_name+".txt" out_path=path+out_name $mesh_file=File.new(out_path,"w") #HERE is problem code. How do I take the collection #of face.vertices and copy as strings to the text file. points.each do |e| $mesh_file.puts(e.x.to_s) $mesh_file.puts(e.y.to_s) $mesh_file.puts(e.z.to_s) end ###loop endAm writing with the Web Console, and having some problems. Saving seems to drop characters, and the indents are gone. Any ideas?
-
points.each do |e| $mesh_file.puts(e.x.to_s) $mesh_file.puts(e.y.to_s) $mesh_file.puts(e.z.to_s) end ###loopAdds x/y/z into file on separate lines...
to test if it's at least getting the points values use plain puts so it appears in the consolepoints.each do |e| puts(e.x.to_s) puts(e.y.to_s) puts(e.z.to_s) end ###loopTo write an xyz line use
points.each do |e| $mesh_file.puts(e.x.to_s+","+e.y.to_s+","+e.z.to_s) end ###loopDoes
$mesh_file=File.new(out_path,"w")actually make the file ?
You need to open the file for writing AND then close it after you are done writing to it.$mesh_file.closeperhaps it's still open and so a second [separate] attempt to write to it fails...
-
@thomthom said:
Normal convention is to type constants in all caps.
Oh yeah! I rarely intialize them. Thanks Thom,
Chris
-
TIG, Just got up, and finished reading at your post. Thanks I think I understand, and have a lot to work with.
$mesh_file=File.new(out_path,"w")
Made a 0 byte file that I can see in "My Computer". I assumed it was open, guess it wasn't:-). Looks like a lot of stuff to work on later today. Good advice about using "puts" to check output. I use the messagebox a lot but that is slow.
puts(e.x.to_s) prints Sketchup::Vertex:0xea24668 ?-(, Crossed this bridge once before, but don't recall how to get output as a number.
-
puts(e.x.to_s) should return a numerical "x" position if e is a Point3d object. if e is a vertex, it should return an error. If e is a vertex, you can do e.position.x and that will return the x position of the vertex.
That sounded confusing to me. A few more lines of your code and I could give a slightly more complete example.
Great job so far!
Chris
-
"oops: - I"
A little slow this morning, didn't get it until now. Thanks guys, lets see how far I can get with what I have before I, OOPS:-(, need help getting off the floor. Might not take too long.Tig, I can now open, write to, and close files:-)
Chris above here is where I stumbled on the code.
It occurred to me that a "method", a "function" in other languages (I missed this one), was in my day know as a "procedure", having evolved from a "[C}all". Before this I did a Basic "sub routine", itself born out of "jump xxxx:xxxx, where xxxx:xxxx began a set of instruction that ended in "return". Before "Buddha" it was all 1111's and 0000's
-
Help! How do I get a number that repersents the location of a face vertices? The following is setup for Web Console. When I output to UI.messagebox(e.vertices), I get:
#Sketchup::Vertex:0xfc83800#Sketchup::Vertex:0xfc837e8#Sketchup::Vertex:0xfc837d0
The main proc is at the bottom, and the methods are above it.
model = Sketchup.active_model entities = model.active_entities selection = model.selection ### Test is selection made if model.selection.empty? entities = model.active_entities else entities = model.selection end ###create file ComponentName.txt def make_comp_face_file(the_name,faces,counter,model) the_line=the_name+" ",counter," faces" UI.messagebox(the_line) model_filename = File.basename(model.path) path=File.dirname(model.path)+"\\" out_name=the_name+".txt" out_path=path+out_name end ###make vertices collection of faces in component def add_face_vertices_collect(faces,points) faces.each do |e| points.push e.outer_loop end ### loop end ###make 3dpoint from vertex HELP HERE!!!! I think def print_vertices_collect(points) points.each do |e| UI.messagebox(e.vertices) ###puts to test will be ###$points_file.puts(e.vertices)###put here when works end end ###Get su;;component collection entities.each do |e| if e.is_a? Sketchup;;ComponentInstance the_name=e.definition.name stuff=e.definition.entities faces=[] counter=0 ###Locate faces in each component and make faces collection stuff.each do |e| if e.is_a? Sketchup;;Face counter=counter+1 faces.push e end ###if end ###loop make_comp_face_file(the_name,faces,counter,model)####Have to points=[] add_face_vertices_collect(faces,points) ####nest these print_vertices_collect(points) ####later $points_file.close end ###if end ###loop -
The Vertex entity has a position.
point = vertex.positionThe position will be relative to parent container, and not relative the SketchUp axes.
-
### points>>>vertices vertices.each do |vertex| $points_file.puts(vertex.vertices.point.to_a) ### FILE of VERTICES POINTS AS AN ARRAY ONE PER LINE... end -
Hi guys, Thanks for your help. I stumbled on e.vertices.x.position after starting over. Now how do I read the SU Ruby API to make this easier to understand?-(
model = Sketchup.active_model entities = model.entities selection = model.selection if model.selection.empty? entities = model.active_entities else entities = model.selection end entities.each do |e| if e.is_a? Sketchup;;ComponentInstance ci_name=e.definition.name #UI.messagebox(ci_name) ci_collection=e.definition.entities #UI.messagebox(ci_collection) ci_collection.each do |e| ci_faces_collection=[] if e.is_a? Sketchup;;Face ci_faces_collection.push e ci_faces_collection.each do |e| faces_vertices_collection=[] if e.vertices faces_vertices_collection.push e puts(e.vertices.x.position) end end end end end end -
Edges, Loops, Curves, Faces, etc have
verticesand thoseverticeshave a positionvertices.position(i.e. a point)
points have x/y/z valuesvertices.position.x
DON'T muddle them up!
-
OK, so how do I get the coordinate values for each vertex on each face.vertices? I think I understand vertex.position, and face.vertices, but how do I get a collection of vertex for each vertices.
Can't be impossible, can it?
-
look at the Face.vertices here:
http://code.google.com/apis/sketchup/docs/ourdoc/face.html#vertices
it says what it returns - an array of vertx objects. So to get positions for all those vertices, you need to loop through that array. Something like this:
` vert_array = my_face.vertices
position_array = []
x_position_array = []vert_array.each do |v|
position_array << v.position
x_position_array << v.position.x
end` -
@honoluludesktop said:
OK, so how do I get the coordinate values for each vertex on each face.vertices? I think I understand vertex.position, and face.vertices, but how do I get a collection of vertex for each vertices.
Can't be impossible, can it?That is not logical
If you have runvertices=face.verticesyou already have a collection [i.e. an array] of the face's vertices !
If you then look at each of them you can get their positions as another array,
e.g.positions=[]; vertices.each{|v|positions<< v.position}
Now you can look at each 'position' in that array (i.e. it's a point) and get the x/y/z values etc
positions.each{|p|puts p.x;puts p.y;puts p.z}
You seem to making this more complicated than it needs to be... -
AGH!!!, Thats what happens when you don't really know what you are doing. I think I got it, again:-) puts(face_pts.position.to_a) almost at the bottom. Basically, I took a "vertices", got tne number of points by "vertices.length", then extracted each "vertex" by "This_number=vertices[0 to (length-1)]". The following runs in Web Console.
model = Sketchup.active_model entities = model.entities selection = model.selection if model.selection.empty? entities = model.active_entities else entities = model.selection end def open_comp_inst_file(comp_inst_name,model) comp_inst_file_name=File.basename(model.path) path=File.dirname(model.path)+"\\" out_name=comp_inst_name+".txt" out_path=path+out_name $dxf_ci_file=File.open(out_path,"w") end entities.each do |e| if e.is_a? Sketchup;;ComponentInstance puts("Component") comp_inst_name=e.definition.name comp_inst_collection=e.definition.entities #open text file for output #open_comp_inst_file(comp_inst_name,model) comp_inst_collection.each do |e| comp_inst_faces_collection=[] if e.is_a? Sketchup;;Face #make collection of faces comp_inst_faces_collection.push e vertices_collection=[] comp_inst_faces_collection.each do |e| if e.vertices #vertice collection vertices_collection.push e.vertices vertices_collection.each do |e| no_vert=e.length cnt_vert=no_vert puts("Vertices") no_vert.times do face_pts=(e[no_vert-cnt_vert]) cnt_vert=cnt_vert-1 puts("Vertex") puts(face_pts.position.to_a) end end end end #loop end #if end #loop #close text file #$dxf_ci_file.close end endHere is some sample output:
%(#408000)[Start Component
Starts Vertices
Start Vertex
69.6952995222671
5.52489094225734
0.0
Start Vertex
26.421563780178
0.0
0.0
Start Vertex
0.0
34.7137089981752
0.0
Start Vertex
16.8521719619112
74.9523089386077
0.0
.
.]
Looks OK? -
@honoluludesktop said:
AGH!!!, Thats what happens when you don't really know what you are doing.
Well, what are you doing? Try to make a precise statement of the purpose of the routine. In
English first, then Ruby.This prints a summary of faces and vertices in the Definitions.
model = Sketchup.active_model entities = model.entities selection = model.selection if model.selection.empty? entities = model.active_entities else entities = model.selection end instance_count = 0 entities.each do |e| if e.is_a? Sketchup;;ComponentInstance instance_count += 1 puts("Component; #{instance_count} #{e.definition.name}") face_count = 0 e.definition.entities.each do |e| if e.is_a? Sketchup;;Face face_count += 1 puts " face; #{face_count}" vertex_count = 0 e.vertices.each do |v| vertex_count += 1 puts " vertex #{vertex_count} id;#{v.object_id} pos;#{v.position}" end end end end endNote since some faces share vertices, and all vertices are listed, some vertives will be duplicated.
Component; 2 Component#2 face; 1 vertex 1 id;48589944 pos;(2.160711", 1.853015", 0") vertex 2 id;48589932 pos;(0", 1.853015", 0") vertex 3 id;48589920 pos;(0", 1.853015", 2.160338") vertex 4 id;48589908 pos;(2.160711", 1.853015", 2.160338") face; 2 vertex 1 id;48589944 pos;(2.160711", 1.853015", 0") vertex 2 id;48589692 pos;(2.160711", 0", 0") vertex 3 id;48589680 pos;(0", 0", 0") vertex 4 id;48589932 pos;(0", 1.853015", 0") face; 3 vertex 1 id;48589680 pos;(0", 0", 0") vertex 2 id;48589692 pos;(2.160711", 0", 0") vertex 3 id;48589464 pos;(2.160711", 0", 2.160338") vertex 4 id;48589452 pos;(0", 0", 2.160338") face; 4 vertex 1 id;48589932 pos;(0", 1.853015", 0") vertex 2 id;48589680 pos;(0", 0", 0") vertex 3 id;48589452 pos;(0", 0", 2.160338") vertex 4 id;48589920 pos;(0", 1.853015", 2.160338") face; 5 vertex 1 id;48589464 pos;(2.160711", 0", 2.160338") vertex 2 id;48589908 pos;(2.160711", 1.853015", 2.160338") vertex 3 id;48589920 pos;(0", 1.853015", 2.160338") vertex 4 id;48589452 pos;(0", 0", 2.160338") face; 6 vertex 1 id;48589692 pos;(2.160711", 0", 0") vertex 2 id;48589944 pos;(2.160711", 1.853015", 0") vertex 3 id;48589908 pos;(2.160711", 1.853015", 2.160338") vertex 4 id;48589464 pos;(2.160711", 0", 2.160338")
Advertisement