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-rw-r--r--gerber/render/svgwrite_backend.py72
1 files changed, 44 insertions, 28 deletions
diff --git a/gerber/render/svgwrite_backend.py b/gerber/render/svgwrite_backend.py
index 78961da..15d7bd3 100644
--- a/gerber/render/svgwrite_backend.py
+++ b/gerber/render/svgwrite_backend.py
@@ -28,49 +28,59 @@ def convert_color(color):
return 'rgb(%d, %d, %d)' % color
class SvgCircle(Circle):
- def line(self, ctx, x, y, color='rgb(184, 115, 51)'):
- return ctx.dwg.line(start=(ctx.x * SCALE, -ctx.y * SCALE),
- end=(x * SCALE, -y * SCALE),
- stroke=color,
- stroke_width=SCALE * self.diameter,
- stroke_linecap="round")
-
- def arc(self, ctx, x, y, i, j, direction, color='rgb(184, 115, 51)'):
+ def line(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
+ aline = ctx.dwg.line(start=(ctx.x * SCALE, -ctx.y * SCALE),
+ end=(x * SCALE, -y * SCALE),
+ stroke=color,
+ stroke_width=SCALE * self.diameter,
+ stroke_linecap="round")
+ aline.stroke(opacity=alpha)
+ return aline
+
+ def arc(self, ctx, x, y, i, j, direction, color='rgb(184, 115, 51)', alpha=1.0):
pass
- def flash(self, ctx, x, y, color='rgb(184, 115, 51)'):
- return [ctx.dwg.circle(center=(x * SCALE, -y * SCALE),
+ def flash(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
+ circle = ctx.dwg.circle(center=(x * SCALE, -y * SCALE),
r = SCALE * (self.diameter / 2.0),
- fill=color), ]
+ fill=color)
+ circle.fill(opacity=alpha)
+ return [circle, ]
class SvgRect(Rect):
- def line(self, ctx, x, y, color='rgb(184, 115, 51)'):
- return ctx.dwg.line(start=(ctx.x * SCALE, -ctx.y * SCALE),
+ def line(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
+ aline = ctx.dwg.line(start=(ctx.x * SCALE, -ctx.y * SCALE),
end=(x * SCALE, -y * SCALE),
stroke=color, stroke_width=2,
stroke_linecap="butt")
+ aline.stroke(opacity=alpha)
+ return aline
- def flash(self, ctx, x, y, color='rgb(184, 115, 51)'):
+ def flash(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
xsize, ysize = self.size
- return [ctx.dwg.rect(insert=(SCALE * (x - (xsize / 2)),
+ rectangle = ctx.dwg.rect(insert=(SCALE * (x - (xsize / 2)),
-SCALE * (y + (ysize / 2))),
size=(SCALE * xsize, SCALE * ysize),
- fill=color), ]
+ fill=color)
+ rectangle.fill(opacity=alpha)
+ return [rectangle, ]
class SvgObround(Obround):
- def line(self, ctx, x, y, color='rgb(184, 115, 51)'):
+ def line(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
pass
- def flash(self, ctx, x, y, color='rgb(184, 115, 51)'):
+ def flash(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
xsize, ysize = self.size
# horizontal obround
if xsize == ysize:
- return [ctx.dwg.circle(center=(x * SCALE, -y * SCALE),
+ circle = ctx.dwg.circle(center=(x * SCALE, -y * SCALE),
r = SCALE * (x / 2.0),
- fill=color), ]
+ fill=color)
+ circle.fill(opacity=alpha)
+ return [circle, ]
if xsize > ysize:
rectx = xsize - ysize
recty = ysize
@@ -88,6 +98,9 @@ class SvgObround(Obround):
-SCALE * (y + (ysize / 2.))),
size=(SCALE * xsize, SCALE * ysize),
fill=color)
+ lcircle.fill(opacity=alpha)
+ rcircle.fill(opacity=alpha)
+ rect.fill(opacity=alpha)
return [lcircle, rcircle, rect, ]
# Vertical obround
@@ -108,6 +121,9 @@ class SvgObround(Obround):
-SCALE * (y + (ysize / 2.))),
size=(SCALE * xsize, SCALE * ysize),
fill=color)
+ lcircle.fill(opacity=alpha)
+ ucircle.fill(opacity=alpha)
+ rect.fill(opacity=alpha)
return [lcircle, ucircle, rect, ]
@@ -131,11 +147,6 @@ class GerberSvgContext(GerberContext):
size=size, fill=convert_color(self.background_color)))
self.background = True
- def set_alpha(self, alpha):
- super(GerberSvgContext, self).set_alpha(alpha)
- import warnings
- warnings.warn('SVG output does not support transparency')
-
def define_aperture(self, d, shape, modifiers):
aperture = None
if shape == 'C':
@@ -162,7 +173,8 @@ class GerberSvgContext(GerberContext):
return
color = (convert_color(self.color) if self.level_polarity == 'dark'
else convert_color(self.background_color))
- self.dwg.add(ap.line(self, x, y, color))
+ alpha = self.alpha if self.level_polarity == 'dark' else 1.0
+ self.dwg.add(ap.line(self, x, y, color, alpha))
self.move(x, y, resolve=False)
def arc(self, x, y, i, j):
@@ -172,7 +184,7 @@ class GerberSvgContext(GerberContext):
if ap is None:
return
#self.dwg.add(ap.arc(self, x, y, i, j, self.direction,
- # convert_color(self.color)))
+ # convert_color(self.color), self.alpha))
self.move(x, y, resolve=False)
def flash(self, x, y):
@@ -184,7 +196,8 @@ class GerberSvgContext(GerberContext):
color = (convert_color(self.color) if self.level_polarity == 'dark'
else convert_color(self.background_color))
- for shape in ap.flash(self, x, y, color):
+ alpha = self.alpha if self.level_polarity == 'dark' else 1.0
+ for shape in ap.flash(self, x, y, color, alpha):
self.dwg.add(shape)
self.move(x, y, resolve=False)
@@ -192,6 +205,7 @@ class GerberSvgContext(GerberContext):
hit = self.dwg.circle(center=(x*SCALE, -y*SCALE),
r=SCALE*(diameter/2.0),
fill=convert_color(self.drill_color))
+ #hit.fill(opacity=self.alpha)
self.dwg.add(hit)
def region_contour(self, x, y):
@@ -199,10 +213,12 @@ class GerberSvgContext(GerberContext):
x, y = self.resolve(x, y)
color = (convert_color(self.color) if self.level_polarity == 'dark'
else convert_color(self.background_color))
+ alpha = self.alpha if self.level_polarity == 'dark' else 1.0
if self.region_path is None:
self.region_path = self.dwg.path(d = 'M %f, %f' %
(self.x*SCALE, -self.y*SCALE),
fill = color, stroke = 'none')
+ self.region_path.fill(opacity=alpha)
self.region_path.push('L %f, %f' % (x*SCALE, -y*SCALE))
self.move(x, y, resolve=False)