Projected intersection of two lines
GWH
two lines to there intersection point by simply defining a fillet radius of
zero. Is there any other way to do this in SW other than extending one line
to a temp line, extending the second to the first then trimming the first
back.... oh yah.. and then go delete the third.
Linsay Armstrong
You can extend the first line to th second using either extend ot trim tool
by grabbing it and dragging it to the other line it will extend to the
virtual intersection with out need of temp lines...then drag other line as
normal....so its 2 drags and no trimming required
Linsay
"GWH" <ghie...@sunwave.net> wrote in message news:dSDh6.44$qm6.660@read1...
Kevin Hill
Kevin
"Linsay Armstrong" <lin...@intercad.co.nz> wrote in message
news:98193048...@shelley.paradise.net.nz...
T Bennett
length chamfer to connect lines like this. Obviously AutoCAD did a few
things right. If you haven't used AutoCAD, please don't tell me that this
is a stupid method, or something ignorant like that. Not that you
neccessarily liked it if you did use AutoCAD (or the other systems that
employ this same method).
"Kevin Hill" <SkPeAv...@infinitypartners.com> wrote in message
news:IfGh6.5770$y03.3...@news.flash.net...
Kevin Hill
I'm just now taking time to respond.
See my integrated responses below:
----- Original Message -----
From: "T Bennett" <todd_b...@polyconcepts.com>
Newsgroups: comp.cad.solidworks
Sent: Tuesday, February 13, 2001 11:29 AM
Subject: Re: Projected intersection of two lines
> Still, it really was nice to be able to use a zero radius fillet or zero
> length chamfer to connect lines like this.
>Obviously AutoCAD did a few things right.
That's your opinion and your sticking to it. I'll try to change
you mind and to
The commands to get it to work, and I'll use the supplied
keyboard shortcuts so we don't have to have a degree
in spelling to make it work, are:
F;R;0;<click><click> Where ";" is a <return> or <spacebar>
Next time is F;<click> <click>
I count 12 clicks and/or keypunches. SW for two sets of
"merged points" is 'only' 10 clicks. For the Extend method:
it's <Extend Tool><click-drag><click>, Whew, that's a lot
of hard work. In my spare time, I'll continue to work on my
lazy man's addin, "SnoozeWorks" that will allow you to think
your designs into reality while watching TV or sleeping.
> If you haven't used AutoCAD, please don't tell me that this
> is a stupid method, or something ignorant like that. Not that you
> neccessarily liked it if you did use AutoCAD (or the other systems that
> employ this same method).
>
I've used way too much Autocad (since r2.9). I don't think
it's a stupid method. I just don't think it makes much physical
sense to have a fillet that doesn't have a radius. IT'S NOT
A FILLET!!!!!!!!!!!!!
Try putting a note on your drawings that says:
"All sharp edges to be rounded with a fillet with zero radius,
or if you prefer, use a zero-length chamfer."
and see how many strange looks you get in the shop.
Now that I've been using SW
for about 5 years, I dread the daily task of working in Autocad.
Even if it's just to measure a distance.
So, to summarize, I've seen far too many people who won't let go
of their legacy system (most of the time, it's Autocad) and really try to
learn the techniques that SW has implemented. If you attempt new
things, you might just find some that you like better.
Jim Sculley
>
> TB,
> I'm just now taking time to respond.
> See my integrated responses below:
>
> it's <Extend Tool><click-drag><click>,
This is dependent on your settings. If you have 'single command per
click' enabled, there is an extra <Extend Tool> step:
<Extend Tool><click-drag><Extend Tool><click>
Either way it's significantly fewer steps.
>
> I've used way too much Autocad (since r2.9). I don't think
> it's a stupid method. I just don't think it makes much physical
> sense to have a fillet that doesn't have a radius. IT'S NOT
> A FILLET!!!!!!!!!!!!!
I agree. I also wonder if the Autodesk programmers were smart enough to
optimize the radius out of the model database. For instance, does a
square with truly trimmed corners contain 4 entities, while a square
with zero radius corners contain 8 entities?
Radii can also cause lots of problems when working in 3-D wireframe.
Cadkey suffered from a particularly nasty problem where radii could
become infinitesimally 'detached' from their associated edges when you
rotated the entities as a group out of the plane in which they were
created. If you attempted to use the geometry as a sweep path, it would
fail.
<snip>
>
> So, to summarize, I've seen far too many people who won't let go
> of their legacy system (most of the time, it's Autocad) and really try to
> learn the techniques that SW has implemented. If you attempt new
> things, you might just find some that you like better.
>
The only group I've seen that is more stubborn than CAD users is
programmers. The arguments about which text editor is best are frequent
and rabid.
Jim S.
T Bennett
"Jim Sculley" <nic...@abraxis.com> wrote in message
news:3A8D2DBE...@abraxis.com...
> I agree. I also wonder if the Autodesk programmers were smart enough to
> optimize the radius out of the model database. For instance, does a
> square with truly trimmed corners contain 4 entities, while a square
> with zero radius corners contain 8 entities?
No.
> The only group I've seen that is more stubborn than CAD users is
> programmers. The arguments about which text editor is best are frequent
> and rabid.
> Jim S.
Agreed, but does that mean by doing things similar to other programs,
SolidWorks couldn't possibly make things better? I think if SolidWorks used
the 0 radius fillet, it would make things better than they are currently,
and light years ahead of AutoCAD.
Shane Parker
> > it's a stupid method. I just don't think it makes much physical
> > sense to have a fillet that doesn't have a radius. IT'S NOT
> > A FILLET!!!!!!!!!!!!!
>
> I agree. I also wonder if the Autodesk programmers were smart enough to
> optimize the radius out of the model database. For instance, does a
> square with truly trimmed corners contain 4 entities, while a square
> with zero radius corners contain 8 entities?
I was curious about this, so I made two squares, one I used the trim tool,
and the other I used the zero radius fillet method. I then exported to DXF;
resulting in the forrlowing (abridged) output:
SECTION
ENTITIES
LINE
AcDbEntity
AcDbLine
LINE
AcDbEntity
AcDbLine
LINE
AcDbEntity
AcDbLine
LINE
AcDbEntity
AcDbLine
LINE
AcDbEntity
AcDbLine
LINE
AcDbEntity
AcDbLine
LINE
AcDbEntity
AcDbLine
LINE
AcDbEntity
AcDbLine
ENDSEC
SECTION
Whitch I take to mean yes, the code is optimised, and only 4 line entities
were created for each method of constructing the square.
--
Shane Parker
Design Engineer
CLIFF GREEN DESIGN
12 Stiles Ave
Burswood
Western Australia
6100
nomad
But I think you may have missed the point. I also was an autocad user who
migrated to solidworks and does not wish to return.
However, I must admit, the one feature I miss most is the Zero fillet. It
was never intended to actually be a fillet of zero radius, it is designed to
enable users to join potentially intersecting lines and trim to each other
in a couple of clicks.
"Kevin Hill" <SkPeAv...@infinitypartners.com> wrote in message
news:OV%i6.2369$Sx5.1...@news.flash.net...
Edward T Eaton
just use the trim/extend function to do this? The trim icon on your sketch
toolbar will extend lines as well as trim them.
Just curious...
Ed
"nomad" <ago...@one.net.au> wrote in message
news:3ab4a...@news01.one.net.au...
Tony O'Hara
Tony O'Hara
matt
Trim tool has three functions:
1) Trim. when a sketch entity crosses another sketch entity, click on
the part of the sketch entity you want to get rid of.
2) Extend. click and drag the line you want to extend to the line you
want to extend it to. This will obviously not work with arcs that would
not intersect after extending or parallel lines.
3) Delete. click on a line that does not cross anything, and it will
be deleted ( if a line intersects something at its end point, the whole
line is deleted, if it crosses it, only the part you selected is
trimmed)
This works way better than the equivalent function in Acad, and you
don't have to deal with the oxymoron "zero radius fillet", a
mathematical impossibility.
Matt.
Tony O'Hara wrote:
> EdwardThe feature we are discussing is very handy if you have two non
> intersecting lines, that have a projected intersect that you want to
> join together with zero radius. At the moment, I either drag one pass
> the projected intersect and then extend the other and trim the first.,
> or if there are other lines around I extend both then trim. This is OK
> for one or two, but if you have many it is a bit tedious.Based on your
> suggestion, I have just tried to use 'Trim' to extend two lines in a
> sketch as per this extract from the 'Trim' help topic:-Trim "Deletes a
> sketch segment, and also can be used to extend a sketch segment. Use
> Trim to: Extend a sketch segment until it is coincident with another
> entity."It also says:- "The entire sketch segment is deleted if it
> does not intersect with any another sketch segment." Unfortunately my
> efforts have been in vain, as Trim does what the second extract says,
> it deletes the line. Of course I could be missing something, if so I
> would dearly love to find out as it would be a very useful
> technique.Please advise as I believe there will be many others that
> will benefit from this feature. Regards
> Tony O'Hara Edward T Eaton wrote in message ...Just out of curiosity
Lee Wondra
"Tony O'Hara" <ton...@cfcl.com.au> wrote in message news:5_9t6.5393$zW2.2...@ozemail.com.au...
nomad
I understand and use all three examples you have listed.
But 2), being the nearest Solidworks solution, still does not seem easier
than clicking on the two lines and they extend to their apparent
intersection. Remembering that the lines if projected, do not cross, they
only have an appearent intersection.
This is only a wish thing that would be a benifit to all users. When
Autodesk introduced it it took a while to get into using, but before I
changed to Solidworks I found I was using this feature daily.
Regards
Tony O'Hara
ago...@one.net.au <mailto:ago...@one.net.au>
Melbourne, Australia.
"matt" <mlom...@frontiernet.net> wrote in message
news:3AB57163...@frontiernet.net...
Tony O'Hara
Tony O'Hara
Lee Wondra wrote in message ...
Jason Swackhamer
"Lee Wondra" <ch...@bigfoot.com> wrote in message news:Vjet6.5051$7e6.1...@homer.alpha.net...