![\"logo\"](\"/images/vector_logo_300x100.png\"){kind=logo}
- Convert LTSpice file to svg format
\n- Convert problem file to latex
\nEmail contact: david.johns@icewire.ca
\nIf you find this app useful, consider buying us a hot chocolate (We are not a coffee drinkers)...
\n \nYou can use LTSpice with its built in symbols but it is suggested you add an svg library to improve the schematic drawing experience.\n
\nWindows(64 bit): ltspice2svgWin64_210302.zip
\n MacOS (64 bit): ltspice2svgMacOS64_210302.zip
\n Linux (64 bit): ltspice2svgLinux64_210302.zip
Windows: C:\\Program Files\\\n
\n MacOS/Linux: /usr/local/bin\n
ltspice2svg --help
\n\nRun the following 2 commands on ex01.asc file:
\n ltspice2svg -export=ex01.svg ex01.asc
\n inkscape -D --export-filename=ex01.pdf --export-latex ex01.svg \n
Include the resulting .pdf_tex file using \\input into your latex document
\n\n\n\nYou can use ltspice2svg as a stand alone app but for Latex users, it is beneficial to have it automatically\n work within a Latex environment. In this way, if an LTSpice figure is updated, the updated figure is automatically included \n in the updated latex document. For this to work, Inkscape needs to be installed as it is used for Latex to include svg figures.\n
\nFirst ensure that Inkscape and ltspice2svg are both in your PATH so that they can be called from the command line (this can be \n tested by running \"inkscape --help\" and \"ltspice2svg --help\")
\nYou should be using Inkscape version 1.0 or above.
\n (versions below 1.0 have issues with exporting for latex)\n
For example, in texmaker, this flag can be added in preferences as\n
\n \"/Library/TeX/texbin/latex\" --shell-escape -interaction=nonstopmode %.tex\n
\n \"/Library/TeX/texbin/pdflatex\" -synctex=1 --shell-escape -interaction=nonstopmode %.tex
\n the \"--shell-escape\" flag is required so that Latex can call a command line app \n
In this example, one LTSpice figure is included into a latex document. The LTSpice figure is automatically converted to an svg file\n (using ltspice2svg) and then the svg file is included (using inkscape). You should be able to delete all the files in the tmp\n directory and when run again, they should be re-generated automatically.
\n \nWindows(64 bit): problem2texWin64_220221.zip
\n MacOS (64 bit): problem2texMacOS64_220221.zip
\n Linux (64 bit): problem2texLinux64_220221.zip
Windows: C:\\Program Files\\\n
\n MacOS/Linux: /usr/local/bin\n
problem2tex --help
\nproblem2tex can also be used in an integrated setup with Latex similar to ltspice2svg
\n \nSource code is available at
\n\n
\n
\n For a modest sized schematic, a nicely hand drawn schematic\n takes about 1 min to create. Unfortunately,\n using a general purpose drawing program to create the same schematic takes from 10 to 15 minutes even if a library of symbols are made in advance.
\n\n However, a good schematic editing tool can create a schematic in about 2 minutes.\n Unfortunately, schmematic editors are well known to create schematics that are\n not suitable for publications in research papers or educational material.
\n\n The purpose of ltspice2svg is to let the user create an LTspice schematic and\n then use ltspice2svg to \"beautify\" the schematic so that the resulting output can\n be used in publications. If needed, the svg file can be further edited (or tweaked) using Inkscape.
\n![\"LTSpice](\"/images/example_asc.png\")
\n ![\"SVG](\"/images/example_svg_subscript.png\")
\n ![\"LTSpice](\"/images/example2_asc.png\")
\n ![\"SVG](\"/images/example2_svg_subscript.png\")
\n The above examples requires the custom \"svg\" library to be installed for LTSpice (see Installation)
\n The svg file can be imported into Inkscape (Inkscape) and, if needed, easily modified
\n (things should remain on grid)\n
You can also create your own LTSpice symbols but they should be placed in the svg directory below where -symPath points to. No new symbol names should be the same as existing LTSpice symbols.
\nYou can also create your own svg symbols to go with your new LTSpice symbols (if you don't like the automatically generated svg symbols). Place any new svg symbol inside the symDefn.svg file within the svg directory (see existing examples)
\nFor the above example (in the command line) run ...
\n % ltspice2svg -export=example.svg -text=subscript example.asc\n
A one figure example can be found within the zip file: FigureAsc.zip
\n - The pdf for this basic example is here: figureAsc.pdf
A presentation example (using the Latex Beamer class) and making use of LTSpice figures can be found within the zip file: TalkAsc.zip
\n - The pdf for this presentation example is here: talkAsc.pdf
For more info, see Documentation
\nThere are just not enough exercises, examples and worked out problems to learn technical material. \n Our hope is that problem2tex can help people create technical exercises which can be\n posted online.\n
\nA latex problem can be created with parameter inputs which\n are randomly chosen from a set of values. The solution is automatically\n generated for the new parameters and SI-prefixes are done automatically.
\nAn example basic02.prb file is the following:
\n\n PARAM{'{'}V_1 = [2, 3, 4, 5] # units=V{'}'}
\n PARAM{'{'}R_1 = [6, 7, 8, 9] # units=k \\Omega{'}'}
\n Given VAL{'{'}V_1,={'}'} and VAL{'{'}R_1,={'}'}, find the current $I_R = V_1/R_1$
\n \\begin{'{'}solution{'}'}
\n RUN{'{'}I_R=V_1/R_1 # units=A{'}'}
\n \\hilite{'{'}VAL{'{'}I_R,={'}'}{'}'}
\n \\end{'{'}solution{'}'}
\n \\begin{'{'}answer{'}'}
\n VAL{'{'}I_R,={'}'}
\n \\end{'{'}answer{'}'}\n
Running this .prb file through latex, the following pdf is generated:
\n![\"solution\"](\"/images/basic02.png\")
\n LTSpice figures can be included in the problems with varying parameters in LTSpice figures
\nFor more info, see Documentation
\nThe above basic example can be found within the zip file: prbBasic.zip
\n - The pdf for this basic example is here: prbBasic.pdf
A full problem set example can be found within the zip file: prbProblemSet.zip
\n This problem set has many schematics, is fully parameterized and the solution is automatically updated as the parameters are changed. Note that the graph for question 6 is also automatically updated by using tikzpicture within Latex.
\n - The pdf for this problem set is here: problemSet.pdf
We are located in Toronto, Canada
\ndavid.johns@icewire.ca
\nIf you find this app useful, consider buying us a hot chocolate (We are not a coffee drinkers)...
\n \n