Dimension/Parameter labeling for part diagrams
When making parametric scripts, sometimes its hard to describe what each
parameter does without a visual aid. So I thought it would be nice if
there was some modules to help label parameters.
The idea is to be able to create technical part diagrams such as this:
http://us.misumi-ec.com/item/10300258330/img/drw_01.gif
The various part dimensions are given variable names, then those names
could correspond to the variables in the script itself.
Alternatively to showing variable names, you could make display the actual
dimensions in unit values:
http://www.ucl.ac.uk/earth-sciences/people/personalpages/bowles/images/Tech_Drawing.jpg
http://img1.wikia.nocookie.net/__cb20110503165248/lego/images/5/5a/Technical_drawing_minifigure.png
(all linked pics are more or less randomly pulled from google image search)
I'm not aware of any other libraries designed to do this so, I developed my
own module. Attached is an example that mostly does what I have in mind.
I still need to create something for labeling angles, and probably another
for labeling radii.
the module signature right now is:
module dimension(txt, l, size=1, offset1=0, offset2=0, dir=[1,0,0],
angle=0, color1="red")
-txt is the label string
-l is the length of dimension being labeled
-size is the size of the label text; the line width and arrows etc are also
derived from this
-offset1 determines where the text is put along the dimension, 0 is
centered, and positive or negative values go on either side outside the
dimension bounds
-offset2 is how far the "vertical" lines extend, perpendicular to the
dimension itself
-dir is a vector in the direction along the dimension
-angle is how the label is rotated about the dir vector
In the script I have attempted to demonstrate the various configurations
for using it.
Let me know if you find this useful, if the parameters make sense, or other
suggestions for improvements.
Thanks,
Hans
Von: "Hans L" thehans@gmail.com
I'm not aware of any other libraries designed to do this so, I developed
my own module. Attached is an example that mostly does what I have in
mind. I still need to create something for labeling angles, and probably
another for labeling radii.
There is http://www.cannymachines.com/entries/9/openscad_dimensioned_drawings
but I never used it myself so far.
ciao,
Torsten.
There is also a OpenSCAD Measurement tool from wifibum
http://www.thingiverse.com/wifibum on Thingiverse:
http://www.thingiverse.com/thing:280469
2015-12-15 13:49 GMT+01:00 Torsten Paul Torsten.Paul@gmx.de:
Von: "Hans L" thehans@gmail.com
I'm not aware of any other libraries designed to do this so, I developed
my own module. Attached is an example that mostly does what I have in
mind. I still need to create something for labeling angles, and probably
another for labeling radii.
There is
http://www.cannymachines.com/entries/9/openscad_dimensioned_drawings
but I never used it myself so far.
ciao,
Torsten.
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@ thehans: Pretty cool, especially the "following cam" one.
I've tried both libs mentioned by Torstan and Peter. The one by Don Smiley
http://www.cannymachines.com/entries/9/openscad_dimensioned_drawings is,
in my mind, the godfather of dimension drawing in OpenSCAD. It can do a lot
of different drawings, produces clean and well spaced (relatively speaking)
output (the font is ugly, though). It is a bit hard to use (for me). But in
my opinion, for anyone wants to develop a dimension lib, this is the one
worth studying.
wifibum's version
http://www.cannymachines.com/entries/9/openscad_dimensioned_drawings has
much more limited use comparing to Smiley's. Also the displayed font doesn't
look comfortable.
Both versions are out-dated 'cos they use 3rd-party text writing lib but not
the current text() built-in.
I also have developed a dimension feature as part of my lib, used in a
thread http://forum.openscad.org/OpenSCAD-and-Woodworking-td13966.html
earlier:
http://forum.openscad.org/file/n13966/201509_CornerShelf_Dim.png
The most significant difference of my approach is that -- instead of writing
a string around the origin ( [0,0,0] ) then moving it to destination -- it
measures the distance between two given points and display it. The function
call is like:
Dim( [P,Q,R], options )
where P,Q are the distance to be measured and R determines the plane to draw
on.
Certainly, this approach makes sense only if P,Q are readily available,
which is not the case in most OpenSCAD applications unless you are working
on polyhedron objects.
$ Runsun Pan, PhD
$ libs:
doctest ,
faces ( git ),
offline doc ( git ),
runscad.py( 1 , 2 , git );
$ tips:
hash( 1 , 2 ),
sweep ,
var( 1 , 2 ),
lerp ,
animGif ,
precision( 1 , 2 )
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Wow I guess I should have asked on the lists instead of on IRC before
making it. Didn't know its been done so many times.
On Tue, Dec 15, 2015 at 11:59 AM, runsun runsun@gmail.com wrote:
@ thehans: Pretty cool, especially the "following cam" one.
I've tried both libs mentioned by Torstan and Peter. The one by Don Smiley
http://www.cannymachines.com/entries/9/openscad_dimensioned_drawings
is,
in my mind, the godfather of dimension drawing in OpenSCAD. It can do a lot
of different drawings, produces clean and well spaced (relatively speaking)
output (the font is ugly, though). It is a bit hard to use (for me). But
in
my opinion, for anyone wants to develop a dimension lib, this is the one
worth studying.
wifibum's version
http://www.cannymachines.com/entries/9/openscad_dimensioned_drawings
has
much more limited use comparing to Smiley's. Also the displayed font
doesn't
look comfortable.
Both versions are out-dated 'cos they use 3rd-party text writing lib but
not
the current text() built-in.
I also have developed a dimension feature as part of my lib, used in a
thread http://forum.openscad.org/OpenSCAD-and-Woodworking-td13966.html
earlier:
http://forum.openscad.org/file/n13966/201509_CornerShelf_Dim.png
The most significant difference of my approach is that -- instead of
writing
a string around the origin ( [0,0,0] ) then moving it to destination -- it
measures the distance between two given points and display it. The function
call is like:
Dim( [P,Q,R], options )
where P,Q are the distance to be measured and R determines the plane to
draw
on.
Certainly, this approach makes sense only if P,Q are readily available,
which is not the case in most OpenSCAD applications unless you are working
on polyhedron objects.
$ Runsun Pan, PhD
$ libs:
doctest ,
faces ( git ),
offline doc ( git ),
runscad.py( 1 , 2 , git );
$ tips:
hash( 1 , 2 ),
sweep ,
var( 1 , 2 ),
lerp ,
animGif ,
precision( 1 , 2 )
--
View this message in context:
http://forum.openscad.org/Dimension-Parameter-labeling-for-part-diagrams-tp15172p15178.html
Sent from the OpenSCAD mailing list archive at Nabble.com.
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canny machines zip file program can be converted to new text by editing
dimlines.scad:
-
removing this line:
use <TextGenerator.scad> -
add this module:
module drawtext(string) {
text(string);
}
Then the two included samples run.
--
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I look at this list wistfully once in awhile, but have been sidelined
for more than a year on another project. But today I see my website.
I had just gotten a question from someone else about the same thing and
made some changes.
Here is an updated version of my dimlines.scad file. It uses the text()
function with OpenSCAD now so the text is more attractive. Note that
there is an additional feature that enables the possibility to insert
text within dimension lines to perhaps document a variable name, should
the need arise.
I'll at some point stick up on cannymachines.com, but here it is in the
meantime.
Don
On 12/15/2015 06:49 PM, Neon22 wrote:
canny machines zip file program can be converted to new text by editing
dimlines.scad:
-
removing this line:
use <TextGenerator.scad> -
add this module:
module drawtext(string) {
text(string);
}
Then the two included samples run.
--
View this message in context: http://forum.openscad.org/Dimension-Parameter-labeling-for-part-diagrams-tp15172p15184.html
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Am Tue, 15 Dec 2015 19:03:47 -0800
schrieb ds ds@sidorof.com:
Here is an updated version of my dimlines.scad file.
Many thanks for sharing, ds.
One little remark: Line 161 should be changed from
color(GREY)
to
color("GREY")
..
Mit freundlichen Grüßen
Kind Regards
Peter Ragosch