mirror of
git://projects.qi-hardware.com/eda-tools.git
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177 lines
4.7 KiB
Plaintext
177 lines
4.7 KiB
Plaintext
eeshow - Eeschema schematics renderer and viewer
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================================================
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Eeshow renders schematics made by KiCad Eeschema to FIG, PDF, or PNG,
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and generates graphical differences between different versions of
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schematics sheets. It can work in plain files but it can also
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retrieve design files directly from a git repository. Furthermore,
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eeshow has an interactive mode for viewing schematics and differences.
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This work is distributed under the terms of the GNU GENERAL PUBLIC
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LICENSE, Version 2:
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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For your convenience, a copy of the complete license has been included
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in the file COPYING.GPLv2.
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Prerequisites
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-------------
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libcairo2-dev
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libgit2-dev
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libgtk-3-dev
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Development status
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------------------
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Eeshow is still incomplete. It should generally be usable, but still has
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many limitations, especially in the following areas:
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- not all details are rendered, e.g., pin attributes such as "clock input"
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- rendering isn't always exactly the same as in KiCad, e.g., text size may
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differ significantly
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- interactive use is not streamlined yet, e.g., revision selection
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- there may be bugs
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More details on pending items can be found in the file TODO.
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Non-interactive rendering
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=========================
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Eeshow can be invoked from the command line to render KiCad schematics
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to FIG, PDF, and PNG.
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Invocation
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----------
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The general form of invocation for rendering is as follows:
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eeshow [-r] file.lib ... file.sch -- format [options]
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Common if using PDF, the option -r can be used (after "eeshow") to
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recursively process sub-sheets. For PDF and PNG, the options -s scale
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and -o output-file can be used to control the size of the output and
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the output file. By default, eeshow writes to standard output.
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Examples:
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eeshow test.lib test.sch -- png -s 2 -o test.png
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eeshow -r neo900.lib kicad-libs/components/powered.lib neo900.sch \
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-- pdf -o neo900.pdf
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More details on the above example can be found in the file DEMO.
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Revision access
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---------------
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If the files are stored in a git repository, a revisions can be selected
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by prefixing file names with the commit ID, e.g.,
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eeshow neo900.lib kicad-libs/components/powered.lib 6a9f71:neo900_SS_5.sch \
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-- png -s 2 -o old.png
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Revision selection propagates to dependent files, unless explicitly
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overridden. E.g., the above example selects also revision 6a9f71 of
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neo900.lib.
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Non-interactive differences
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===========================
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Eeshow can render two versions of a sheet to a bitmap and then compare them
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pixel by pixel, highlighting areas where differences are found. The output
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is written to a PNG file.
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Invocation
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----------
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The general form of invocation for rendering is as follows:
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eeshow file.lib ... file.sch -- diff [options] file.lib ... file.sch
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The usual options and revision selection can be used here as well.
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Example:
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LIBS="neo900.lib kicad-libs/components/powered.lib"
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eeshow $LIBS 6a9f71:neo900_SS_5.sch \
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-- diff -s 2 -o diff.png $LIBS neo900_SS_5.sch
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GUI mode
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========
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GUI mode allows exploration of schematics and the comparison of different
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git revisions. Compared to eeschema, eeshow currently offers the following
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additional features:
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- access to the git revision history with visual differences between
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versions.
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- on hover, global labels show on which other sheets the label is used.
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Clicking on a name jumps to that sheet.
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- fast sheet change with PgUp/PgDn
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Invocation
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----------
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The basic invocation of GUI mode is as follows:
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eeshow file.lib ... file.sch
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Add the option -r to recursively load sub-sheets of file.sch
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If file.sch is in a git repository, eeshow automatically loads the
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revision history. The depth of the history can be limited with the
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option -N number-of-commits
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Examples:
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eeshow -N 30 -r neo900.lib kicad-libs/components/powered.lib neo900.sch
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eeshow `sed -n '/pcbnew/q;/^LibName[0-9]*=/{s///;s/$/.lib/p;};d' anelok.pro` \
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anelok.sch
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Mouse function in GUI mode
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--------------------------
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Hover show additional details on revisions, sheets, global
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labels
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Left-click jump to sheet (on sub-sheet, sheet stack, global
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label hover box), open history, select revision
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Left-click and drag scroll history
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Middle-click and drag pan sheet
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Scroll wheel zoom in or out
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Key functions in GUI mode
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-------------------------
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+ or = zoom in
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- zoom out
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* zoom to extents
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Home go to the top sheet
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Delete or Backspace go to the next higher sheet in hierarchy
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PgUp go to the previous sheet in sequence
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PgDn go to the next sheet in sequence
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Up or Down invoke the revision history (WIP)
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Q quit the viewer
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