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-rw-r--r--TODO2
-rwxr-xr-xgerbolyze/gerbolyze.py40
-rw-r--r--svg-flatten/include/gerbolyze.hpp3
-rw-r--r--svg-flatten/src/main.cpp18
-rw-r--r--svg-flatten/src/out_dilater.cpp4
-rw-r--r--svg-flatten/src/out_gerber.cpp21
6 files changed, 59 insertions, 29 deletions
diff --git a/TODO b/TODO
new file mode 100644
index 0000000..55033ed
--- /dev/null
+++ b/TODO
@@ -0,0 +1,2 @@
+[ ] Do not just return "error 255" if usvg is not installed
+[ ] Straighten up svg-flatten input unit handling
diff --git a/gerbolyze/gerbolyze.py b/gerbolyze/gerbolyze.py
index 5dbbefe..1d69977 100755
--- a/gerbolyze/gerbolyze.py
+++ b/gerbolyze/gerbolyze.py
@@ -95,7 +95,9 @@ def paste_vectors(input_gerbers, output_gerbers, top, bottom,
outfile = Path('debug') / f'dilated-{layer}-{amount}.gbr' # FIXME
# outfile = tmpdir / 'dilated-{layer}-{amount}.gbr'
dilate_gerber(layers, layer, amount, bbox, tmpdir, outfile, units)
- return gerberex.read(str(outfile))
+ gbr = gerberex.read(str(outfile))
+ # gbr.offset(bounds[0][0], bounds[1][0])
+ return gbr
for layer, input_files in layers.items():
if layer == 'drill':
@@ -510,19 +512,28 @@ def create_template_from_svg(bounds, svg_data, extra_layers=DEFAULT_EXTRA_LAYERS
#==================
def dilate_gerber(layers, layer_name, dilation, bbox, tmpdir, outfile, units):
- # render gerber to SVG
- scale = 1/25.4 if units == 'metric' else 1.0 # pcb-tools gerber scale
- scale *= CAIRO_SVG_HARDCODED_DPI
+ if layer_name not in layers:
+ raise ValueError(f'Cannot dilate layer {layer_name}: layer not found in input dir')
bounds = get_bounds(bbox, layers)
- ctx = GerberCairoContext(scale=scale)
- for _path, to_render in layers.get(layer_name, ()):
- ctx.render_layer(to_render, bounds=bounds,
- settings=gerber.render.RenderSettings(color=(0,0,0)), # FIXME should be 1, 1, 1
- bgsettings=gerber.render.RenderSettings(color=(0,0,0), alpha=0))
+ (x_min_mm, x_max_mm), (y_min_mm, y_max_mm) = bounds
+
+ origin_x = x_min_mm / MM_PER_INCH
+ origin_y = y_min_mm / MM_PER_INCH
+
+ width = (x_max_mm - x_min_mm) / MM_PER_INCH
+ height = (y_max_mm - y_min_mm) / MM_PER_INCH
tmpfile = tmpdir / 'dilate-tmp.svg'
- ctx.dump(str(tmpfile))
+ path, _gbr = layers[layer_name][0]
+ # NOTE: gerbv has an undocumented maximum length of 20 chars for the arguments to --origin and --window_inch
+ cmd = ['gerbv', '-x', 'svg',
+ '--border=0',
+ f'--origin={origin_x:.6f}x{origin_y:.6f}', f'--window_inch={width:.6f}x{height:.6f}',
+ '--foreground=#ffffff',
+ '-o', str(tmpfile), str(path)]
+ print('cmd:', " ".join(cmd))
+ subprocess.run(cmd, check=True)
# FIXME DEBUG
import uuid
@@ -531,9 +542,10 @@ def dilate_gerber(layers, layer_name, dilation, bbox, tmpdir, outfile, units):
print('tmp debug dilation svg:', fn)
# dilate & render back to gerber
- svg_to_gerber(tmpfile, outfile, dilate=dilation)
+ # TODO: the scale parameter is a hack. ideally we would fix svg-flatten to handle input units correctly.
+ svg_to_gerber(tmpfile, outfile, dilate=-dilation, dpi=72, scale=25.4/72.0)
-def svg_to_gerber(infile, outfile, layer=None, trace_space:'mm'=0.1, vectorizer=None, vectorizer_map=None, exclude_groups=None, dilate=None):
+def svg_to_gerber(infile, outfile, layer=None, trace_space:'mm'=0.1, vectorizer=None, vectorizer_map=None, exclude_groups=None, dilate=None, dpi=None, scale=None):
if 'SVG_FLATTEN' in os.environ:
candidates = [os.environ['SVG_FLATTEN']]
@@ -560,6 +572,10 @@ def svg_to_gerber(infile, outfile, layer=None, trace_space:'mm'=0.1, vectorizer=
args += ['--exclude-groups', exclude_groups]
if dilate:
args += ['--dilate', str(dilate)]
+ if dpi:
+ args += ['--usvg-dpi', str(dpi)]
+ if scale:
+ args += ['--scale', str(scale)]
args += [str(infile), str(outfile)]
print('full args:', " ".join(args))
diff --git a/svg-flatten/include/gerbolyze.hpp b/svg-flatten/include/gerbolyze.hpp
index 1fe13ae..96a4103 100644
--- a/svg-flatten/include/gerbolyze.hpp
+++ b/svg-flatten/include/gerbolyze.hpp
@@ -213,7 +213,7 @@ namespace gerbolyze {
class SimpleGerberOutput : public StreamPolygonSink {
public:
- SimpleGerberOutput(std::ostream &out, bool only_polys=false, int digits_int=4, int digits_frac=6, d2p offset={0,0});
+ SimpleGerberOutput(std::ostream &out, bool only_polys=false, int digits_int=4, int digits_frac=6, double scale=1.0, d2p offset={0,0});
virtual ~SimpleGerberOutput() {}
virtual SimpleGerberOutput &operator<<(const Polygon &poly);
virtual SimpleGerberOutput &operator<<(GerberPolarityToken pol);
@@ -227,6 +227,7 @@ namespace gerbolyze {
double m_height;
long long int m_gerber_scale;
d2p m_offset;
+ double m_scale;
};
class SimpleSVGOutput : public StreamPolygonSink {
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<double>(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<int>();
+ }
+ 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<poly.size(); i++) {
- double x = round((poly[i][0] + m_offset[0]) * m_gerber_scale);
- double y = round((m_height - poly[i][1] + m_offset[1]) * m_gerber_scale);
+ double x = round((poly[i][0] * m_scale + m_offset[0]) * m_gerber_scale);
+ double y = round((m_height - poly[i][1] * m_scale + m_offset[1]) * m_gerber_scale);
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
<< "D01*" << endl;
generated by cgit (git 2.34.1) at 2024-11-22 12:09:42 +0000