I get the following code, after running, we can see that the time is changing with the timeline, but how should this change of time be used?For example, how do I take the hour h of a changing time in a module, which is still changing outside the module, and the formula h=h-8 is also changing along the timeline
class MyShadowInfoObserver < Sketchup::ShadowInfoObserver
def onShadowInfoChanged(shadow_info, type)
# puts "onShadowInfoChanged: #{type}"
Sketchup.active_model.active_view.invalidate
end
end
class ShadowTool
def initialize()
# Attach the observer.
Sketchup.active_model.select_tool(self)
end
def activate
# puts 'activate'
@observer =MyShadowInfoObserver.new
Sketchup.active_model.shadow_info.add_observer(@observer)
Sketchup.active_model.active_view.invalidate
end
def deactivate(view)
# puts 'deactivate'
Sketchup.active_model.shadow_info.remove_observer(@observer)
view.invalidate
end
def draw(view)
model = Sketchup.active_model
shadowinfo = model.shadow_info
@text = shadowinfo["ShadowTime"].to_s
view.draw_text([30, 30], @text, {size: 18, color: [80, 80, 80]})
end
end # tool
end
SW::ShadowTool.new
nil
Iām not sure I understand what you want to achieve? Perhaps you can try to explain in other wordsā¦
First of all, the first line of the above snippet is missing:
module SW
Here is the corrected and expanded version of the code snippet.
It writes the hours and minutes to the Ruby Console and the values calculated from these values too.
module SW
class MyShadowInfoObserver < Sketchup::ShadowInfoObserver
def onShadowInfoChanged(shadow_info, type)
# puts "onShadowInfoChanged: #{type}"
Sketchup.active_model.active_view.invalidate
end
end
class ShadowTool
def initialize()
@model = Sketchup.active_model
@shadowinfo = @model.shadow_info
@model.select_tool(self)
end
def activate
# puts 'activate'
# Attach the observer.
@observer = MyShadowInfoObserver.new
@model.shadow_info.add_observer(@observer)
@model.active_view.invalidate
end
def deactivate(view)
# puts 'deactivate'
# Remove the observer.
@model.shadow_info.remove_observer(@observer)
view.invalidate
end
def draw(view)
@text = @shadowinfo["ShadowTime"].to_s
view.draw_text([30, 30], @text, {size: 18, color: [80, 80, 80]})
handle_shadowinfo_hour_min
end
def handle_shadowinfo_hour_min
@shadowinfo_hour = @shadowinfo["ShadowTime"].hour
puts "shadowinfo_hour: #{@shadowinfo_hour}"
@calculated_hour = @shadowinfo_hour - 8
puts "calculated_hour: #{@calculated_hour}"
@shadowinfo_min = @shadowinfo["ShadowTime"].min
puts "shadowinfo_min: #{@shadowinfo_min}"
@calculated_min = @shadowinfo_min - 3
puts "calculated_min: #{@calculated_min}"
# etc. you can do somthing with the instace variables
end
end # tool
end
SW::ShadowTool.new
(This is a software engineering principle that is valid for any programming API, not only SketchUp)
An API method like Sketchup.active_model means āof all the models, give me a reference to the one which is currently activeā.
This sentence implies that when you call this method several times, there is no guarantee that every time the same is still the active model. The fact that you āseeā that SketchUp has only one model (on Windows) is no proof that there cannot be more models, in fact the way that the API is designed, SketchUp developers could add support for multiple models at any time, and then suddenly such code breaks.
For this reason, whenever you want to use the āsame objectā, get an object reference once and save it in a variable (here @model). This principle can be applied to many other types of objects, like selected entities (a user can change selection and then the selected entities are not the same anymore), materials etc.
In other words: āDonāt repeat yourselfā
When two lines of code use a chain of same method calls:
This is the code for plane rotation, and I would like to use the @Calculated_hour variable above to control plane rotation. How the two codes fit together (how to call the @Calculated_hour variable outside of the module).
ent = mod.entities # All entities in model
sel = mod.selection # Current selection
def_list = mod.definitions
path = Sketchup.find_support_file "16.skp","Components"
comp_def = def_list.load path
time0 = Time.utc(2020,1,1,9,0,0)
time1 = Time.utc(2020,1,1,@calculated_hour,0,0)
t=time1.hour-time0.hour
ent.each do |entity|
if entity.typename == "ComponentInstance"
entity.erase!
end
end
inst1 = ent.add_instance comp_def,[0,0,0]
tr = Geom::Transformation.rotation [0,0,0],[1,0,0],5*t.degrees
ent.transform_entities tr,inst1
UI.messagebox("#{5*t}"+"åŗ¦")
Thank you. My purpose is to control the rotation of the plane on the time axis. Your solution has done itćBut maybe my computer is so bad that I canāt close the program every time itās finished. The whole program is stuck
I have changed to a better computer to run the code, but there is still a phenomenon that the code cannot be closed after running. Is there such a phenomenon on your computer?
Hello, I changed a few computers and the same thing happened again. I just clicked Close button directly. What code did you use to end the program? As for the optimization problem you mentioned, so far I have only thought of this one way, and I will finish it with your help. Do you have any new ideas about time axis control plane rotation?
As most of the tool, you have select an other tool to closeā¦ in this case hit the space bar or click - for example - on a Rectangle tool icon.
And yes, if I want to close SU during this code snippet is running, this will hang SU. I donāt know why.
I didnāt look deeper. I assumed you will have more time to do itā¦
You mean you will use a code written by sWilliams, asking someone to make improvement then asking someone to to help to optimize. Neat!
This sentence cannot be interpreted for me.
I have no idea what does it mean at all.
I apologize for my lazy behavior and thank you for your help. I donāt want all the key work to be done by others. I have thought for a long time before asking you, but I have no clue. I donāt have any information about Ruby in Sketahup, I can go to the forum to ask for help when I have difficulty problem .Iāll continue to work hard, try to solve the problem by myself, thank you again for your patience solutions, thank each to help patient with my friends, thank you!(Translation software always ambiguities my words)
I found that when the time axis stops, the program is also running. It will keep taking the time of the slider, but because of the existence of these lines of code, there is no output result.
I also found that clicking the middle mouse button before closing the program can interrupt the program.
Compared to your final code, the code that initially only displays the time on the screen does not run when the timeline is stopped. I tried to combine the original code with the rotation function code, but I failed.
As an expert on Ruby language in Sketchup, how did you learn it in the first place? Can you give me some experience? Thank youļ¼
The #suspend method is called by SketchUp when the tool temporarily becomes inactive because another tool has been activated. This typically happens when a viewing tool is activated, such as when orbit is active due to the middle mouse button.
This method is automatically called within your Tool. You can write your code āinsideā this method to be able to react as you desiredā¦
Even you can design what will happen if the orbit tool āhandling back the executionā to your tool with the #resume method.
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Iām very far from that. Iām just an amateur curious person trying to observe the mysteries of Ruby in his limited spare time. Iām probably more advanced in learning than you are, but thatās it. Programming is not my profession.
Unfortunately for me, there are no background studies. I donāt understand or know a lot of things. Iām just trying to understand, for example, from what others are asking and answering here on the forum.
I started dealing with Ruby about 10 years ago. First, I studied the Ruby API documentation in depth: https://ruby.sketchup.com/index.html
I mean, you have to read each method back and forth several times in detail. Then again.
Honestly, this website should always be open when you write a program.
In addition, since the SU Ruby API only contains SU special procedures, you need to know the general Ruby. The current Ruby version in SU2021 is https://ruby-doc.org/core-2.7.1/index.html (If I remember right in SU2018 the Ruby version is 2.2.4 and in SU2019 is 2.5.1)
