From 95de179bb08157c3f6716b0645ec00794acc83e6 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Mon, 27 Oct 2014 08:29:43 -0400 Subject: Fix rendering of 0-width lines (e.g. board outlines) in SVG and Cairo renderer --- gerber/render/cairo_backend.py | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'gerber/render/cairo_backend.py') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index df513bb..1c69725 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -20,7 +20,7 @@ from operator import mul import cairocffi as cairo import math -SCALE = 300. +SCALE = 400. class GerberCairoContext(GerberContext): @@ -48,8 +48,9 @@ class GerberCairoContext(GerberContext): def _render_line(self, line, color): start = map(mul, line.start, self.scale) end = map(mul, line.end, self.scale) - self.ctx.set_source_rgb (*color) - self.ctx.set_line_width(line.width * SCALE) + width = line.width if line.width != 0 else 0.001 + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_line_width(width * SCALE) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) self.ctx.move_to(*start) self.ctx.line_to(*end) @@ -57,7 +58,7 @@ class GerberCairoContext(GerberContext): def _render_region(self, region, color): points = [tuple(map(mul, point, self.scale)) for point in region.points] - self.ctx.set_source_rgb (*color) + self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_line_width(0) self.ctx.move_to(*points[0]) for point in points[1:]: @@ -66,7 +67,7 @@ class GerberCairoContext(GerberContext): def _render_circle(self, circle, color): center = map(mul, circle.position, self.scale) - self.ctx.set_source_rgb (*color) + self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_line_width(0) self.ctx.arc(*center, radius=circle.radius * SCALE, angle1=0, angle2=2 * math.pi) self.ctx.fill() @@ -74,7 +75,7 @@ class GerberCairoContext(GerberContext): def _render_rectangle(self, rectangle, color): ll = map(mul, rectangle.lower_left, self.scale) width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale))) - self.ctx.set_source_rgb (*color) + self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_line_width(0) self.ctx.rectangle(*ll,width=width, height=height) self.ctx.fill() -- cgit