From a68e395cb622b9cb91e408b0846cc10126f8ddad Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 31 Jan 2021 22:11:34 +0100 Subject: Advanced svg/gerber composition working --- svg-flatten/src/main.cpp | 18 ++++++++++++++++-- svg-flatten/src/out_dilater.cpp | 4 ---- svg-flatten/src/out_gerber.cpp | 21 +++++++++++---------- 3 files changed, 27 insertions(+), 16 deletions(-) (limited to 'svg-flatten/src') diff --git a/svg-flatten/src/main.cpp b/svg-flatten/src/main.cpp index 135a4c1..d05672a 100644 --- a/svg-flatten/src/main.cpp +++ b/svg-flatten/src/main.cpp @@ -82,6 +82,12 @@ int main(int argc, char **argv) { {"skip_usvg", {"--no-usvg"}, "Do not preprocess input using usvg (do not use unless you know *exactly* what you're doing)", 0}, + {"usvg_dpi", {"--usvg-dpi"}, + "Passed through to usvg's --dpi, in case the input file has different ideas of DPI than usvg has.", + 1}, + {"scale", {"--scale"}, + "Scale input svg lengths by this factor.", + 1}, {"exclude_groups", {"-e", "--exclude-groups"}, "Comma-separated list of group IDs to exclude from export. Takes precedence over --only-groups.", 1}, @@ -176,7 +182,9 @@ int main(int argc, char **argv) { sink = new SimpleSVGOutput(*out_f, only_polys, precision, dark_color, clear_color); } else if (fmt == "gbr" || fmt == "grb" || fmt == "gerber") { - sink = new SimpleGerberOutput(*out_f, only_polys, 4, precision); + double scale = args["scale"].as(1.0); + cerr << "loading @scale=" << scale << endl; + sink = new SimpleGerberOutput(*out_f, only_polys, 4, precision, scale); } else if (fmt == "s-exp" || fmt == "sexp" || fmt == "kicad") { if (!args["sexp_mod_name"]) { @@ -334,7 +342,13 @@ int main(int argc, char **argv) { } else { cerr << "calling usvg on " << barf << " and " << frob << endl; - const char *command_line[] = {"usvg", "--keep-named-groups", barf.c_str(), frob.c_str(), NULL}; + int dpi = 96; + if (args["usvg_dpi"]) { + dpi = args["usvg_dpi"].as(); + } + string dpi_str = to_string(dpi); + + const char *command_line[] = {"usvg", "--keep-named-groups", "--dpi", dpi_str.c_str(), barf.c_str(), frob.c_str(), NULL}; struct subprocess_s subprocess; int rc = subprocess_create(command_line, subprocess_option_inherit_environment, &subprocess); if (rc) { diff --git a/svg-flatten/src/out_dilater.cpp b/svg-flatten/src/out_dilater.cpp index c0e5969..1ac1040 100644 --- a/svg-flatten/src/out_dilater.cpp +++ b/svg-flatten/src/out_dilater.cpp @@ -52,10 +52,6 @@ Dilater &Dilater::operator<<(GerberPolarityToken pol) { } Dilater &Dilater::operator<<(const Polygon &poly) { - static int i = 0; - cerr << "dilating poly " << i++ << endl; - - cerr << "got poly of " << poly.size() << " nodes" << endl; ClipperLib::Path poly_c; for (auto &p : poly) { poly_c.push_back({(ClipperLib::cInt)round(p[0] * clipper_scale), (ClipperLib::cInt)round(p[1] * clipper_scale)}); diff --git a/svg-flatten/src/out_gerber.cpp b/svg-flatten/src/out_gerber.cpp index c320184..b32e6e4 100644 --- a/svg-flatten/src/out_gerber.cpp +++ b/svg-flatten/src/out_gerber.cpp @@ -27,11 +27,12 @@ using namespace gerbolyze; using namespace std; -SimpleGerberOutput::SimpleGerberOutput(ostream &out, bool only_polys, int digits_int, int digits_frac, d2p offset) +SimpleGerberOutput::SimpleGerberOutput(ostream &out, bool only_polys, int digits_int, int digits_frac, double scale, d2p offset) : StreamPolygonSink(out, only_polys), m_digits_int(digits_int), m_digits_frac(digits_frac), - m_offset(offset) + m_offset(offset), + m_scale(scale) { assert(1 <= digits_int && digits_int <= 9); assert(0 <= digits_frac && digits_frac <= 9); @@ -39,10 +40,10 @@ SimpleGerberOutput::SimpleGerberOutput(ostream &out, bool only_polys, int digits } void SimpleGerberOutput::header_impl(d2p origin, d2p size) { - m_offset[0] += origin[0]; - m_offset[1] += origin[1]; - m_width = size[0] - origin[0]; - m_height = size[1] - origin[1]; + m_offset[0] += origin[0] * m_scale; + m_offset[1] += origin[1] * m_scale; + m_width = (size[0] - origin[0]) * m_scale; + m_height = (size[1] - origin[1]) * m_scale; if (pow(10, m_digits_int-1) < max(m_width, m_height)) { cerr << "Warning: Input has bounding box too large for " << m_digits_int << "." << m_digits_frac << " gerber resolution!" << endl; @@ -74,16 +75,16 @@ SimpleGerberOutput& SimpleGerberOutput::operator<<(const Polygon &poly) { } /* NOTE: Clipper and gerber both have different fixed-point scales. We get points in double mm. */ - double x = round((poly[0][0] + m_offset[0]) * m_gerber_scale); - double y = round((m_height - poly[0][1] + m_offset[1]) * m_gerber_scale); + double x = round((poly[0][0] * m_scale + m_offset[0]) * m_gerber_scale); + double y = round((m_height - poly[0][1] * m_scale + m_offset[1]) * m_gerber_scale); m_out << "G36*" << endl; m_out << "X" << setw(m_digits_int + m_digits_frac) << setfill('0') << (long long int)x << "Y" << setw(m_digits_int + m_digits_frac) << setfill('0') << (long long int)y << "D02*" << endl; m_out << "G01*" << endl; for (size_t i=1; i