On 10/31/19 6:14 AM, Jonatan Liljedahl wrote: > On Wed, Oct 30, 2019 at 6:42 PM Holger Vogt <holger.v...@uni-due.de> wrote: >> >> The current eeschema-ngspice interface is very limited. > > Are there any plans or roadmap for improving it?
Not until V7. The V6 road map is already pretty ambitious. > >>> How would one plot, for example, the difference between two vectors? >>> I tried this in a text box: >>> >>> .save foo=(‘v(/input)-v(/output2)’) >>> .tran 10u 50m >>> >>> but "foo" does not show up in the list of vectors to display in the plot >>> window. >> >> Here you might have a look at >> https://forum.kicad.info/t/spice-plotting-difference-of-voltages/19545/2 > > Thanks! Also I found this way: I added a symbol and a dummy resistor, > setting the symbols Spice_Primitive and Value such that I get this in > the netlist: > > BV1 /diff GND V=V(/input,/output) > Rdummy1 NC_03 /diff 1g > > "V(/diff)" then shows up in the kicad plot menu. This also work for > other operations than diffing, for example > > BV2 /mul GND V=V(/input)*V(/output)/100 > > It would be nice if one could simply append stuff to the netlist in a > textblock, is this possible? > >>> Another thing, I found that one can use parameters for values, for >>> example {Rx} for a resistor value and then add a textbox with ".param >>> Rx=100k". Would it be possible to simultaneous get plots for a set of >>> different values of Rx? >>> >> >> Here you might try external ngspice. KiCad 5.1.x has a direct >> interface, where you generate a netlist from your circuit and then may >> call ngspice. This will offer the full ngspice capabilities and plotting >> via ngspice or gnuplot. I have described an example at >> http://ngspice.sourceforge.net/ngspice-eeschema.html#external . >> >> Unfortunately this interface has disappeared in KiCad 5.9.9 . I still >> will have to make a wish list bug report to get this back. > > Is this supposed to work on macOS as well? I downloaded the ngspice > package but the binary fails to run: > > $ ./ngspice > dyld: Library not loaded: /opt/X11/lib/libXaw.7.dylib > Referenced from: /Applications/ngspice/bin/./ngspice > Reason: image not found > Abort trap: 6 > > _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : kicad-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
