[Plugin] Hatchfaces (v1.8 beta) UPDATED 15-Dec-2012

[sergey2402]

Angle of Hatching

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[jolran]

That is true Sergey!

Should be an relativley easy fix. For TIG that is For me, everything takes time..

[jolran]

Hmm. GRRRRoin
The problem from yesterday is worse than I thought. Linehatch direction gets switched in different axis.
That is probably what TIG was reffering to. In my over-enthusiastic mood I did not notice that.

So my only conclusion is that an selected edge MUST be included in the calculation of hatch.angle.

[jolran]

Trying something. Comments are VERY welcomed. Have selected the face and 1 edge.

Can retrieve the edge like this.

@h_edge=ss if ss.class==Sketchup;;Edge

And if using the edges points to make a vector, I've tried @h_edge.line. Did not work. This does not work either.

pt=@h_edge.start
p1=@h_edge.end
ve=pt.vector_to(p1)

Main goal is to make a condition: If an edge+face is selected run this code. If only face is selected run the axis code.
Of course only 1 edge can be selected.
Bad idea?

[TIG]

The problem with the idea is that currently it processes all of the faces in a selection, if you have one edge selected it won't necessarily lie on the plane every face processed ?

My way uses the x-axis [usually] to determine the start vector [projected onto the face's plane] from which you angle off the hatching edges...

[jolran]

Ahh, you mean multiple face selection? Yes I see, that will not work of course.
I don't see it as a big limitation that only 1 face could be processed at each time?
Or faces on the same plane, wich is probably the most common case?

Edges get drawn a bit irregular atm.

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[jolran]

If selecting face and edge I can only get an array, not the edge as an individual edge selection?
Even if doing a ==Sketchup::Edge thingy..
Must I use a selection observer for this?
Would be fun if I could even try this method out, but stuck on basic things..

[TIG]

No complications like observers needed.
To pick one face and one edge from the selection use
ss=model.selection face=nil edge=nil faces=[] edges=[] ss.each{|e| if e.class==Sketchup::Face faces << e end if e.class==Sketchup::Edge edges << e end } face=faces[0]if faces edge=edges[0]if edges
This takes the first face and first edge it comes across in the selection and ignores all others [if there are any].
You then need a trap if there's no face selected
if not face UI.messagebox("Select a Face you dolt!") return nil end
and
` if not edge

choose 'edge' by other means or error message again

endYou now process 'face' just the once and not 'each face in faces'... If you want to be thorough report the user has picked more than one face or edge if faces[1]
UI.messagebox("Select ONE Face - only the 1st selected Face was processed - Twit!")
return nil
end
if edges[1]
UI.messagebox("Select either NO or ONE Edge - only the 1st selected Edge was used - Fool!")
return nil
end`
etc etc...

[jolran]

Ahhh Excellent! That certainly make more sence then the shi£$y stuff I was working on.

I will try this tomorrow, avec plaisire.

Thank you TIG.

[jolran]

I think I will alter the "Tourette Syndrome style" prompts in the inputbox you recommended.

[TIG]

They were intended as a 'joke'

[jolran]

No worries!

[jolran]

Well, it seams to be working a little better now. No promises though..

TIG's selection code works like a charm.
Just had to change pt and pt1 to pt=@edge.start.position, p1=@edge.end.position. And use ve=pt.vector_to(p1) as usual.
So now the hatching gets aligned to the selected edge..

Maybe it would be a good idea to have the plugin run as usual(axis mode) if NO edge is selected? Some if statements when edge is NOT selected or so..

That way one still would have the possibility to alter several faces should one wish so.
Anyway if no objections I might do the update on this?

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[jolran]

eekk, don't know what I'm talking about It does multiple faces as long 1 edge is selected and the face is
connected to that edge.

[sergey2402]

Could you upload version 1.5 to test it?

[jolran]

Yep. This evening.

I was planning on adding the crosshathcing as well. But it's not working yet.
Anyway I will upload ver 1.5 anyway, with or without crosshatching.

[jolran]

1.5 beta uploaded!

You might as well play with it. An Edge and a Face must be selected. The hatches will be created clockwise according to the edge. Hopefully

I will continue with the crosshatching...

[jolran]

Ooops!! The "Hatchfaces" menu item in Draw menu isent finished yet. Will fix that later...
Should not affect usage with icons..

[jolran]

Ok. ver 1.6 beta added.

http://forums.sketchucation.com/viewtopic.php?f=323&t=38637&p=341461#p341461

Crosshatching should be working. It creates the hatches in 2 groups inside a parentgroup, should you wish crosshatching.

Had to rewrite parts into methods. TIG's been "directing" me more and finding problems than "giving" me code in this version. So I had to suffer and learn a little bit more Besides the script is getting longer so it takes more time to debug from his part...

That said! Beware that this script could surely be optimized, and I'll gladely take tips about how to.
I do feel it's a bit ugly script with all the methodcalling at the end.
Just remember that the temp face(face_clone) method must be separate. So it can be used if there are possibilities to
do other types of hatchpattern, and implement them on the face_clone.

Thanks to TIG, again for tutoring

[TIG]

Great it's getting there...
The dialog's values aren't getting remembered.
Make variables like angle/spacing/cross_alt into @ types so they get remembered for next time... Otherwise you need to fill in the dialog each time.
Use this too
angle2=@cross_angle angle2=-@angle if not angle2
This way the dialogs value is then the same as last time OR -@angle
similar for spacing etc
Also the menu item can reuse the cmd0 command rather that make another!
Then it uses the same name as the Toolbar command...