diff options
Diffstat (limited to 'gerbonara/gerber/render/cairo_backend.py')
| -rw-r--r-- | gerbonara/gerber/render/cairo_backend.py | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/gerbonara/gerber/render/cairo_backend.py b/gerbonara/gerber/render/cairo_backend.py index ff92d99..ff5e6cb 100644 --- a/gerbonara/gerber/render/cairo_backend.py +++ b/gerbonara/gerber/render/cairo_backend.py @@ -23,6 +23,7 @@ except ImportError: from operator import mul import tempfile +import warnings import os from .render import GerberContext, RenderSettings @@ -235,7 +236,11 @@ class GerberCairoContext(GerberContext): two_pi = 2 * math.pi angle1 = (arc.start_angle + two_pi) % two_pi angle2 = (arc.end_angle + two_pi) % two_pi - if angle1 == angle2 and arc.quadrant_mode != 'single-quadrant': + + if arc.quadrant_mode == 'single-quadrant': + warnings.warn('Cairo backend does not support single-quadrant arcs.') + + if angle1 == angle2: # Make the angles slightly different otherwise Cario will draw nothing angle2 -= 0.000000001 if isinstance(arc.aperture, Circle): @@ -255,8 +260,7 @@ class GerberCairoContext(GerberContext): if arc.direction == 'counterclockwise': mask.ctx.arc(center[0], center[1], radius, angle1, angle2) else: - mask.ctx.arc_negative(center[0], center[1], radius, - angle1, angle2) + mask.ctx.arc_negative(center[0], center[1], radius, angle1, angle2) mask.ctx.move_to(*end) # ...lame mask.ctx.stroke() |