If I select edit/draw/arc, it usually draws a circle! Or a lopsided arc. Is there a trick for drawing controllable arcs? -- John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation
LT Spice arcs
Started by ●June 19, 2014
Reply by ●June 19, 20142014-06-19
Le 19/06/2014 17:51, John Larkin a �crit :> > > If I select edit/draw/arc, it usually draws a circle! Or a lopsided arc. Is > there a trick for drawing controllable arcs? > > > >Just do Edit-Draw-Arc LTSpice designs a plain circle (or an ovoide) on the screen and then click inside this fresh circle to implement a an arc. That's how it works on my GNU/Debian station, may be different behaviour on MS-Win machines. Habib.
Reply by ●June 19, 20142014-06-19
Habib Bouaziz-Viallet wrote:> Le 19/06/2014 17:51, John Larkin a �crit : >> >> >> If I select edit/draw/arc, it usually draws a circle! Or a lopsided >> arc. Is >> there a trick for drawing controllable arcs? >> >> >> >> > Just do Edit-Draw-Arc > > LTSpice designs a plain circle (or an ovoide) on the screen > > and then click inside this fresh circle to implement a an arc. > > That's how it works on my GNU/Debian station, may be different > behaviour on MS-Win machines. >Yep, that's how it also works in windows. John, when it starts doing the circle click on it aagin while the cursor is on the circle, then you can do the two end points. The radius has to be set before when you place the elipse (which vanishes after the 2nd click). But arcs are not a desired thing in electronics ... -- Regards, Joerg http://www.analogconsultants.com/
Reply by ●June 19, 20142014-06-19
On Thu, 19 Jun 2014 13:04:59 -0700, Joerg <invalid@invalid.invalid> wrote:>Habib Bouaziz-Viallet wrote: >> Le 19/06/2014 17:51, John Larkin a �crit : >>> >>> >>> If I select edit/draw/arc, it usually draws a circle! Or a lopsided >>> arc. Is >>> there a trick for drawing controllable arcs? >>> >>> >>> >>> >> Just do Edit-Draw-Arc >> >> LTSpice designs a plain circle (or an ovoide) on the screen >> >> and then click inside this fresh circle to implement a an arc. >> >> That's how it works on my GNU/Debian station, may be different >> behaviour on MS-Win machines. >> > >Yep, that's how it also works in windows. John, when it starts doing the >circle click on it aagin while the cursor is on the circle, then you can >do the two end points. The radius has to be set before when you place >the elipse (which vanishes after the 2nd click). > >But arcs are not a desired thing in electronics ...I wanted to draw some nice gaussian looking pulses on my schematic here and there. I finally got it to work by clicking a lot, but I don't think I really get it. I suppose I should have just used a zillion line segments. The HELP says, basically ARC : use the ARC tool to draw an arc. -- John Larkin Highland Technology, Inc jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
Reply by ●June 20, 20142014-06-20
John Larkin wrote:> On Thu, 19 Jun 2014 13:04:59 -0700, Joerg <invalid@invalid.invalid> > wrote: > >> Habib Bouaziz-Viallet wrote: >>> Le 19/06/2014 17:51, John Larkin a �crit : >>>> >>>> If I select edit/draw/arc, it usually draws a circle! Or a lopsided >>>> arc. Is >>>> there a trick for drawing controllable arcs? >>>> >>>> >>>> >>>> >>> Just do Edit-Draw-Arc >>> >>> LTSpice designs a plain circle (or an ovoide) on the screen >>> >>> and then click inside this fresh circle to implement a an arc. >>> >>> That's how it works on my GNU/Debian station, may be different >>> behaviour on MS-Win machines. >>> >> Yep, that's how it also works in windows. John, when it starts doing the >> circle click on it aagin while the cursor is on the circle, then you can >> do the two end points. The radius has to be set before when you place >> the elipse (which vanishes after the 2nd click). >> >> But arcs are not a desired thing in electronics ... > > I wanted to draw some nice gaussian looking pulses on my schematic > here and there. I finally got it to work by clicking a lot, but I > don't think I really get it. I suppose I should have just used a > zillion line segments. >For educational purposes it would be nice to be able to import graphics snippets into LTSpice. But I believe that's where the limits are and LTSpice can probably not do that (yet).> The HELP says, basically > > ARC : use the ARC tool to draw an arc. >:-) -- Regards, Joerg http://www.analogconsultants.com/
Reply by ●June 20, 20142014-06-20
On Fri, 20 Jun 2014 07:29:09 -0700, Joerg <invalid@invalid.invalid> wrote: [snip]>> > >For educational purposes it would be nice to be able to import graphics >snippets into LTSpice. But I believe that's where the limits are and >LTSpice can probably not do that (yet). >[snip] PSpice can do that: Draw, Insert Picture, bmp/dib/wmf/emf I use it mostly to make custom title blocks using my customers' company logos. They like that ;-) ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
Reply by ●June 20, 20142014-06-20
On Fri, 20 Jun 2014 07:29:09 -0700, Joerg <invalid@invalid.invalid> wrote:>John Larkin wrote: >> On Thu, 19 Jun 2014 13:04:59 -0700, Joerg <invalid@invalid.invalid> >> wrote: >> >>> Habib Bouaziz-Viallet wrote: >>>> Le 19/06/2014 17:51, John Larkin a �crit : >>>>> >>>>> If I select edit/draw/arc, it usually draws a circle! Or a lopsided >>>>> arc. Is >>>>> there a trick for drawing controllable arcs? >>>>> >>>>> >>>>> >>>>> >>>> Just do Edit-Draw-Arc >>>> >>>> LTSpice designs a plain circle (or an ovoide) on the screen >>>> >>>> and then click inside this fresh circle to implement a an arc. >>>> >>>> That's how it works on my GNU/Debian station, may be different >>>> behaviour on MS-Win machines. >>>> >>> Yep, that's how it also works in windows. John, when it starts doing the >>> circle click on it aagin while the cursor is on the circle, then you can >>> do the two end points. The radius has to be set before when you place >>> the elipse (which vanishes after the 2nd click). >>> >>> But arcs are not a desired thing in electronics ... >> >> I wanted to draw some nice gaussian looking pulses on my schematic >> here and there. I finally got it to work by clicking a lot, but I >> don't think I really get it. I suppose I should have just used a >> zillion line segments. >> > >For educational purposes it would be nice to be able to import graphics >snippets into LTSpice. But I believe that's where the limits are and >LTSpice can probably not do that (yet). > > >> The HELP says, basically >> >> ARC : use the ARC tool to draw an arc. >> > >:-)PADS can put OLE objects onto a schematic. We had one schematic that included six (tasteful) pictures of the layout guy's girlfriend. We have no idea how that happened. -- John Larkin Highland Technology, Inc jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
Reply by ●June 20, 20142014-06-20
John Larkin wrote:> On Fri, 20 Jun 2014 07:29:09 -0700, Joerg <invalid@invalid.invalid> > wrote: > >> John Larkin wrote: >>> On Thu, 19 Jun 2014 13:04:59 -0700, Joerg <invalid@invalid.invalid> >>> wrote: >>> >>>> Habib Bouaziz-Viallet wrote: >>>>> Le 19/06/2014 17:51, John Larkin a �crit : >>>>>> If I select edit/draw/arc, it usually draws a circle! Or a lopsided >>>>>> arc. Is >>>>>> there a trick for drawing controllable arcs? >>>>>> >>>>>> >>>>>> >>>>>> >>>>> Just do Edit-Draw-Arc >>>>> >>>>> LTSpice designs a plain circle (or an ovoide) on the screen >>>>> >>>>> and then click inside this fresh circle to implement a an arc. >>>>> >>>>> That's how it works on my GNU/Debian station, may be different >>>>> behaviour on MS-Win machines. >>>>> >>>> Yep, that's how it also works in windows. John, when it starts doing the >>>> circle click on it aagin while the cursor is on the circle, then you can >>>> do the two end points. The radius has to be set before when you place >>>> the elipse (which vanishes after the 2nd click). >>>> >>>> But arcs are not a desired thing in electronics ... >>> I wanted to draw some nice gaussian looking pulses on my schematic >>> here and there. I finally got it to work by clicking a lot, but I >>> don't think I really get it. I suppose I should have just used a >>> zillion line segments. >>> >> For educational purposes it would be nice to be able to import graphics >> snippets into LTSpice. But I believe that's where the limits are and >> LTSpice can probably not do that (yet). >> >> >>> The HELP says, basically >>> >>> ARC : use the ARC tool to draw an arc. >>> >> :-) > > PADS can put OLE objects onto a schematic.Eagle can import graphics as well. It is so powerful in graphing and assembly that people have used it do design birthday banners and wedding cakes.> ... We had one schematic that > included six (tasteful) pictures of the layout guy's girlfriend. We > have no idea how that happened. >And then all the boys stood around the Gerber viewer all drooling :-) -- Regards, Joerg http://www.analogconsultants.com/
Reply by ●June 20, 20142014-06-20
On Fri, 20 Jun 2014 13:06:38 -0700, John Larkin <jlarkin@highlandtechnology.com> wrote:>On Fri, 20 Jun 2014 07:29:09 -0700, Joerg <invalid@invalid.invalid> >wrote: > >>John Larkin wrote: >>> On Thu, 19 Jun 2014 13:04:59 -0700, Joerg <invalid@invalid.invalid> >>> wrote: >>> >>>> Habib Bouaziz-Viallet wrote: >>>>> Le 19/06/2014 17:51, John Larkin a �crit : >>>>>> >>>>>> If I select edit/draw/arc, it usually draws a circle! Or a lopsided >>>>>> arc. Is >>>>>> there a trick for drawing controllable arcs? >>>>>> >>>>>> >>>>>> >>>>>> >>>>> Just do Edit-Draw-Arc >>>>> >>>>> LTSpice designs a plain circle (or an ovoide) on the screen >>>>> >>>>> and then click inside this fresh circle to implement a an arc. >>>>> >>>>> That's how it works on my GNU/Debian station, may be different >>>>> behaviour on MS-Win machines. >>>>> >>>> Yep, that's how it also works in windows. John, when it starts doing the >>>> circle click on it aagin while the cursor is on the circle, then you can >>>> do the two end points. The radius has to be set before when you place >>>> the elipse (which vanishes after the 2nd click). >>>> >>>> But arcs are not a desired thing in electronics ... >>> >>> I wanted to draw some nice gaussian looking pulses on my schematic >>> here and there. I finally got it to work by clicking a lot, but I >>> don't think I really get it. I suppose I should have just used a >>> zillion line segments. >>> >> >>For educational purposes it would be nice to be able to import graphics >>snippets into LTSpice. But I believe that's where the limits are and >>LTSpice can probably not do that (yet). >> >> >>> The HELP says, basically >>> >>> ARC : use the ARC tool to draw an arc. >>> >> >>:-) > >PADS can put OLE objects onto a schematic. We had one schematic that >included six (tasteful) pictures of the layout guy's girlfriend. We >have no idea how that happened.So can OrCad Capture but they increase the size of the files and slow Crapture to a crawl. I tried documenting filter response curves with simulator outputs but they slowed everything down too much so started drawing stick figures instead.
Reply by ●June 20, 20142014-06-20
In article <co17q9lhfcu0g0l148ahgbq39lrsulfnpo@4ax.com>, jlarkin@highlandtechnology.com says...> >circle click on it aagin while the cursor is on the circle, then you can > >do the two end points. The radius has to be set before when you place > >the elipse (which vanishes after the 2nd click). > > > >But arcs are not a desired thing in electronics ... > > I wanted to draw some nice gaussian looking pulses on my schematic > here and there. I finally got it to work by clicking a lot, but I > don't think I really get it. I suppose I should have just used a > zillion line segments. > > The HELP says, basically > > ARC : use the ARC tool to draw an arc. > >A Polyline function would be nice ) Jamie
