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-rw-r--r--gerber/__main__.py10
-rw-r--r--gerber/cam.py16
-rw-r--r--gerber/common.py3
-rw-r--r--gerber/primitives.py23
-rw-r--r--gerber/render/render.py130
-rw-r--r--gerber/tests/test_cam.py30
-rw-r--r--gerber/tests/test_common.py11
-rw-r--r--gerber/tests/test_primitives.py79
-rw-r--r--gerber/tests/test_utils.py43
9 files changed, 235 insertions, 110 deletions
diff --git a/gerber/__main__.py b/gerber/__main__.py
index 71e3bfc..8f20212 100644
--- a/gerber/__main__.py
+++ b/gerber/__main__.py
@@ -25,15 +25,15 @@ if __name__ == '__main__':
sys.exit(1)
ctx = GerberSvgContext()
- ctx.set_alpha(0.95)
+ ctx.alpha = 0.95
for filename in sys.argv[1:]:
print "parsing %s" % filename
if 'GTO' in filename or 'GBO' in filename:
- ctx.set_color((1, 1, 1))
- ctx.set_alpha(0.8)
+ ctx.color = (1, 1, 1)
+ ctx.alpha = 0.8
elif 'GTS' in filename or 'GBS' in filename:
- ctx.set_color((0.2, 0.2, 0.75))
- ctx.set_alpha(0.8)
+ ctx.color = (0.2, 0.2, 0.75)
+ ctx.alpha = 0.8
gerberfile = read(filename)
gerberfile.render(ctx)
diff --git a/gerber/cam.py b/gerber/cam.py
index a4057bc..9c731aa 100644
--- a/gerber/cam.py
+++ b/gerber/cam.py
@@ -62,29 +62,24 @@ class FileSettings(object):
if units not in ['inch', 'metric']:
raise ValueError('Units must be either inch or metric')
self.units = units
-
-
+
if zero_suppression is None and zeros is None:
self.zero_suppression = 'trailing'
-
+
elif zero_suppression == zeros:
raise ValueError('Zeros and Zero Suppression must be different. \
Best practice is to specify only one.')
-
+
elif zero_suppression is not None:
if zero_suppression not in ['leading', 'trailing']:
raise ValueError('Zero suppression must be either leading or \
trailling')
self.zero_suppression = zero_suppression
-
elif zeros is not None:
if zeros not in ['leading', 'trailing']:
raise ValueError('Zeros must be either leading or trailling')
self.zeros = zeros
- else:
- self.zeros = 'leading'
-
if len(format) != 2:
raise ValueError('Format must be a tuple(n=2) of integers')
@@ -150,6 +145,9 @@ class FileSettings(object):
raise ValueError('Format must be a tuple(n=2) of integers')
self.format = value
+ else:
+ raise KeyError('%s is not a valid key' % key)
+
def __eq__(self, other):
return (self.notation == other.notation and
self.units == other.units and
@@ -230,7 +228,7 @@ class CamFile(object):
def bounds(self):
""" File baundaries
"""
- pass
+ raise NotImplementedError('bounds must be implemented in a subclass')
def render(self, ctx, filename=None):
""" Generate image of layer.
diff --git a/gerber/common.py b/gerber/common.py
index 6e8c862..83e3cb0 100644
--- a/gerber/common.py
+++ b/gerber/common.py
@@ -39,4 +39,5 @@ def read(filename):
elif fmt == 'excellon':
return excellon.read(filename)
else:
- return None
+ raise TypeError('Unable to detect file format')
+
diff --git a/gerber/primitives.py b/gerber/primitives.py
index 61df7c1..da05127 100644
--- a/gerber/primitives.py
+++ b/gerber/primitives.py
@@ -345,20 +345,25 @@ class Obround(Primitive):
self.position = position
self.width = width
self.height = height
-
- @property
- def orientation(self):
- return 'vertical' if self.height > self.width else 'horizontal'
+ # Axis-aligned width and height
+ self._abs_width = (math.cos(math.radians(self.rotation)) * self.width +
+ math.sin(math.radians(self.rotation)) * self.height)
+ self._abs_height = (math.cos(math.radians(self.rotation)) * self.height +
+ math.sin(math.radians(self.rotation)) * self.width)
@property
def lower_left(self):
- return (self.position[0] - (self.width / 2.),
- self.position[1] - (self.height / 2.))
+ return (self.position[0] - (self._abs_width / 2.),
+ self.position[1] - (self._abs_height / 2.))
@property
def upper_right(self):
- return (self.position[0] + (self.width / 2.),
- self.position[1] + (self.height / 2.))
+ return (self.position[0] + (self._abs_width / 2.),
+ self.position[1] + (self._abs_height / 2.))
+
+ @property
+ def orientation(self):
+ return 'vertical' if self.height > self.width else 'horizontal'
@property
def bounding_box(self):
@@ -380,7 +385,7 @@ class Obround(Primitive):
else:
circle1 = Circle((self.position[0] - (self.height - self.width) / 2.,
self.position[1]), self.height)
- circle2 = Circle((self.position[0] - (self.height - self.width) / 2.,
+ circle2 = Circle((self.position[0] + (self.height - self.width) / 2.,
self.position[1]), self.height)
rect = Rectangle(self.position, (self.width - self.height),
self.height)
diff --git a/gerber/render/render.py b/gerber/render/render.py
index f5c58d8..2e4abfa 100644
--- a/gerber/render/render.py
+++ b/gerber/render/render.py
@@ -41,7 +41,7 @@ class GerberContext(object):
Attributes
----------
units : string
- Measurement units
+ Measurement units. 'inch' or 'metric'
color : tuple (<float>, <float>, <float>)
Color used for rendering as a tuple of normalized (red, green, blue) values.
@@ -57,74 +57,70 @@ class GerberContext(object):
Rendering opacity. Between 0.0 (transparent) and 1.0 (opaque.)
"""
def __init__(self, units='inch'):
- self.units = units
- self.color = (0.7215, 0.451, 0.200)
- self.drill_color = (0.25, 0.25, 0.25)
- self.background_color = (0.0, 0.0, 0.0)
- self.alpha = 1.0
-
- def set_units(self, units):
- """ Set context measurement units
-
- Parameters
- ----------
- unit : string
- Measurement units. may be 'inch' or 'metric'
-
- Raises
- ------
- ValueError
- If `unit` is not 'inch' or 'metric'
- """
+ self._units = units
+ self._color = (0.7215, 0.451, 0.200)
+ self._drill_color = (0.25, 0.25, 0.25)
+ self._background_color = (0.0, 0.0, 0.0)
+ self._alpha = 1.0
+
+ @property
+ def units(self):
+ return self._units
+
+ @units.setter
+ def units(self, units):
if units not in ('inch', 'metric'):
raise ValueError('Units may be "inch" or "metric"')
- self.units = units
-
- def set_color(self, color):
- """ Set rendering color.
-
- Parameters
- ----------
- color : tuple (<float>, <float>, <float>)
- Color as a tuple of (red, green, blue) values. Each channel is
- represented as a float value in (0, 1)
- """
- self.color = color
-
- def set_drill_color(self, color):
- """ Set color used for rendering drill hits.
-
- Parameters
- ----------
- color : tuple (<float>, <float>, <float>)
- Color as a tuple of (red, green, blue) values. Each channel is
- represented as a float value in (0, 1)
- """
- self.drill_color = color
-
- def set_background_color(self, color):
- """ Set rendering background color
-
- Parameters
- ----------
- color : tuple (<float>, <float>, <float>)
- Color as a tuple of (red, green, blue) values. Each channel is
- represented as a float value in (0, 1)
- """
- self.background_color = color
-
- def set_alpha(self, alpha):
- """ Set layer rendering opacity
-
- .. note::
- Not all backends/rendering devices support this parameter.
-
- Parameters
- ----------
- alpha : float
- Rendering opacity. must be between 0.0 (transparent) and 1.0 (opaque)
- """
- self.alpha = alpha
+ self._units = units
+
+ @property
+ def color(self):
+ return self._color
+
+ @color.setter
+ def color(self, color):
+ if len(color) != 3:
+ raise TypeError('Color must be a tuple of R, G, and B values')
+ for c in color:
+ if c < 0 or c > 1:
+ raise ValueError('Channel values must be between 0.0 and 1.0')
+ self._color = color
+
+ @property
+ def drill_color(self):
+ return self._drill_color
+
+ @drill_color.setter
+ def drill_color(self, color):
+ if len(color) != 3:
+ raise TypeError('Drill color must be a tuple of R, G, and B values')
+ for c in color:
+ if c < 0 or c > 1:
+ raise ValueError('Channel values must be between 0.0 and 1.0')
+ self._drill_color = color
+
+ @property
+ def background_color(self):
+ return self._background_color
+
+ @background_color.setter
+ def background_color(self, color):
+ if len(color) != 3:
+ raise TypeError('Background color must be a tuple of R, G, and B values')
+ for c in color:
+ if c < 0 or c > 1:
+ raise ValueError('Channel values must be between 0.0 and 1.0')
+ self._background_color = color
+
+ @property
+ def alpha(self):
+ return self._alpha
+
+ @alpha.setter
+ def alpha(self, alpha):
+ if alpha < 0 or alpha > 1:
+ raise ValueError('Alpha must be between 0.0 and 1.0')
+ self._alpha = alpha
def render(self, primitive):
color = (self.color if primitive.level_polarity == 'dark'
diff --git a/gerber/tests/test_cam.py b/gerber/tests/test_cam.py
index 1aeb18c..8e0270c 100644
--- a/gerber/tests/test_cam.py
+++ b/gerber/tests/test_cam.py
@@ -65,8 +65,14 @@ def test_camfile_settings():
cf = CamFile()
assert_equal(cf.settings, FileSettings())
-def test_zeros():
+#def test_bounds_override():
+# cf = CamFile()
+# assert_raises(NotImplementedError, cf.bounds)
+
+def test_zeros():
+ """ Test zero/zero_suppression interaction
+ """
fs = FileSettings()
assert_equal(fs.zero_suppression, 'trailing')
assert_equal(fs.zeros, 'leading')
@@ -89,3 +95,25 @@ def test_zeros():
assert_equal(fs.zeros, 'leading')
assert_equal(fs.zero_suppression, 'trailing')
+
+def test_filesettings_validation():
+ """ Test FileSettings constructor argument validation
+ """
+ assert_raises(ValueError, FileSettings, 'absolute-ish', 'inch', None, (2, 5), None)
+ assert_raises(ValueError, FileSettings, 'absolute', 'degrees kelvin', None, (2, 5), None)
+ assert_raises(ValueError, FileSettings, 'absolute', 'inch', 'leading', (2, 5), 'leading')
+ assert_raises(ValueError, FileSettings, 'absolute', 'inch', 'following', (2, 5), None)
+ assert_raises(ValueError, FileSettings, 'absolute', 'inch', None, (2, 5), 'following')
+ assert_raises(ValueError, FileSettings, 'absolute', 'inch', None, (2, 5, 6), None)
+
+def test_key_validation():
+ fs = FileSettings()
+ assert_raises(KeyError, fs.__getitem__, 'octopus')
+ assert_raises(KeyError, fs.__setitem__, 'octopus', 'do not care')
+ assert_raises(ValueError, fs.__setitem__, 'notation', 'absolute-ish')
+ assert_raises(ValueError, fs.__setitem__, 'units', 'degrees kelvin')
+ assert_raises(ValueError, fs.__setitem__, 'zero_suppression', 'following')
+ assert_raises(ValueError, fs.__setitem__, 'zeros', 'following')
+ assert_raises(ValueError, fs.__setitem__, 'format', (2, 5, 6))
+
+
diff --git a/gerber/tests/test_common.py b/gerber/tests/test_common.py
index 1e1efe5..bf9760a 100644
--- a/gerber/tests/test_common.py
+++ b/gerber/tests/test_common.py
@@ -20,5 +20,12 @@ def test_file_type_detection():
"""
ncdrill = read(NCDRILL_FILE)
top_copper = read(TOP_COPPER_FILE)
- assert(isinstance(ncdrill, ExcellonFile))
- assert(isinstance(top_copper, GerberFile))
+ assert_true(isinstance(ncdrill, ExcellonFile))
+ assert_true(isinstance(top_copper, GerberFile))
+
+def test_file_type_validation():
+ """ Test file format validation
+ """
+ assert_raises(TypeError, read, 'LICENSE')
+
+
diff --git a/gerber/tests/test_primitives.py b/gerber/tests/test_primitives.py
index 4534484..e5ae770 100644
--- a/gerber/tests/test_primitives.py
+++ b/gerber/tests/test_primitives.py
@@ -165,6 +165,7 @@ def test_chamfer_rectangle_ctor():
assert_equal(r.chamfer, chamfer)
assert_array_almost_equal(r.corners, corners)
+
def test_chamfer_rectangle_bounds():
""" Test chamfer rectangle bounding box calculation
"""
@@ -191,7 +192,8 @@ def test_round_rectangle_ctor():
assert_equal(r.height, height)
assert_equal(r.radius, radius)
assert_array_almost_equal(r.corners, corners)
-
+
+
def test_round_rectangle_bounds():
""" Test round rectangle bounding box calculation
"""
@@ -203,7 +205,76 @@ def test_round_rectangle_bounds():
xbounds, ybounds = r.bounding_box
assert_array_almost_equal(xbounds, (-math.sqrt(2), math.sqrt(2)))
assert_array_almost_equal(ybounds, (-math.sqrt(2), math.sqrt(2)))
+
+
+def test_obround_ctor():
+ """ Test obround creation
+ """
+ test_cases = (((0,0), 1, 1),
+ ((0, 0), 1, 2),
+ ((1,1), 1, 2))
+ for pos, width, height in test_cases:
+ o = Obround(pos, width, height)
+ assert_equal(o.position, pos)
+ assert_equal(o.width, width)
+ assert_equal(o.height, height)
+
+
+def test_obround_bounds():
+ """ Test obround bounding box calculation
+ """
+ o = Obround((2,2),2,4)
+ xbounds, ybounds = o.bounding_box
+ assert_array_almost_equal(xbounds, (1, 3))
+ assert_array_almost_equal(ybounds, (0, 4))
+ o = Obround((2,2),4,2)
+ xbounds, ybounds = o.bounding_box
+ assert_array_almost_equal(xbounds, (0, 4))
+ assert_array_almost_equal(ybounds, (1, 3))
+
+
+def test_obround_orientation():
+ o = Obround((0, 0), 2, 1)
+ assert_equal(o.orientation, 'horizontal')
+ o = Obround((0, 0), 1, 2)
+ assert_equal(o.orientation, 'vertical')
+
+
+def test_obround_subshapes():
+ o = Obround((0,0), 1, 4)
+ ss = o.subshapes
+ assert_array_almost_equal(ss['rectangle'].position, (0, 0))
+ assert_array_almost_equal(ss['circle1'].position, (0, 1.5))
+ assert_array_almost_equal(ss['circle2'].position, (0, -1.5))
+ o = Obround((0,0), 4, 1)
+ ss = o.subshapes
+ assert_array_almost_equal(ss['rectangle'].position, (0, 0))
+ assert_array_almost_equal(ss['circle1'].position, (1.5, 0))
+ assert_array_almost_equal(ss['circle2'].position, (-1.5, 0))
-
-
- \ No newline at end of file
+def test_polygon_ctor():
+ """ Test polygon creation
+ """
+ test_cases = (((0,0), 3, 5),
+ ((0, 0), 5, 6),
+ ((1,1), 7, 7))
+ for pos, sides, radius in test_cases:
+ p = Polygon(pos, sides, radius)
+ assert_equal(p.position, pos)
+ assert_equal(p.sides, sides)
+ assert_equal(p.radius, radius)
+
+def test_polygon_bounds():
+ """ Test polygon bounding box calculation
+ """
+ p = Polygon((2,2), 3, 2)
+ xbounds, ybounds = p.bounding_box
+ assert_array_almost_equal(xbounds, (0, 4))
+ assert_array_almost_equal(ybounds, (0, 4))
+ p = Polygon((2,2),3, 4)
+ xbounds, ybounds = p.bounding_box
+ assert_array_almost_equal(xbounds, (-2, 6))
+ assert_array_almost_equal(ybounds, (-2, 6))
+
+
+
diff --git a/gerber/tests/test_utils.py b/gerber/tests/test_utils.py
index 706fa65..1077022 100644
--- a/gerber/tests/test_utils.py
+++ b/gerber/tests/test_utils.py
@@ -3,8 +3,8 @@
# Author: Hamilton Kibbe <ham@hamiltonkib.be>
-from .tests import assert_equal
-from ..utils import decimal_string, parse_gerber_value, write_gerber_value
+from .tests import assert_equal, assert_raises
+from ..utils import decimal_string, parse_gerber_value, write_gerber_value, detect_file_format
def test_zero_suppression():
@@ -22,8 +22,8 @@ def test_zero_suppression():
('-100000', -1.0), ('-1000000', -10.0),
('0', 0.0)]
for string, value in test_cases:
- assert(value == parse_gerber_value(string, fmt, zero_suppression))
- assert(string == write_gerber_value(value, fmt, zero_suppression))
+ assert_equal(value, parse_gerber_value(string, fmt, zero_suppression))
+ assert_equal(string, write_gerber_value(value, fmt, zero_suppression))
# Test trailing zero suppression
zero_suppression = 'trailing'
@@ -34,8 +34,8 @@ def test_zero_suppression():
('-000001', -0.0001), ('-0000001', -0.00001),
('0', 0.0)]
for string, value in test_cases:
- assert(value == parse_gerber_value(string, fmt, zero_suppression))
- assert(string == write_gerber_value(value, fmt, zero_suppression))
+ assert_equal(value, parse_gerber_value(string, fmt, zero_suppression))
+ assert_equal(string, write_gerber_value(value, fmt, zero_suppression))
def test_format():
@@ -51,8 +51,8 @@ def test_format():
((2, 2), '-1', -0.01), ((2, 1), '-1', -0.1),
((2, 6), '0', 0) ]
for fmt, string, value in test_cases:
- assert(value == parse_gerber_value(string, fmt, zero_suppression))
- assert(string == write_gerber_value(value, fmt, zero_suppression))
+ assert_equal(value, parse_gerber_value(string, fmt, zero_suppression))
+ assert_equal(string, write_gerber_value(value, fmt, zero_suppression))
zero_suppression = 'trailing'
test_cases = [((6, 5), '1', 100000.0), ((5, 5), '1', 10000.0),
@@ -63,8 +63,8 @@ def test_format():
((2, 5), '-1', -10.0), ((1, 5), '-1', -1.0),
((2, 5), '0', 0)]
for fmt, string, value in test_cases:
- assert(value == parse_gerber_value(string, fmt, zero_suppression))
- assert(string == write_gerber_value(value, fmt, zero_suppression))
+ assert_equal(value, parse_gerber_value(string, fmt, zero_suppression))
+ assert_equal(string, write_gerber_value(value, fmt, zero_suppression))
def test_decimal_truncation():
@@ -74,7 +74,7 @@ def test_decimal_truncation():
for x in range(10):
result = decimal_string(value, precision=x)
calculated = '1.' + ''.join(str(y) for y in range(1,x+1))
- assert(result == calculated)
+ assert_equal(result, calculated)
def test_decimal_padding():
@@ -85,6 +85,25 @@ def test_decimal_padding():
assert_equal(decimal_string(value, precision=4, padding=True), '1.1230')
assert_equal(decimal_string(value, precision=5, padding=True), '1.12300')
assert_equal(decimal_string(value, precision=6, padding=True), '1.123000')
-
assert_equal(decimal_string(0, precision=6, padding=True), '0.000000')
+
+def test_parse_format_validation():
+ """ Test parse_gerber_value() format validation
+ """
+ assert_raises(ValueError, parse_gerber_value, '00001111', (7, 5))
+ assert_raises(ValueError, parse_gerber_value, '00001111', (5, 8))
+ assert_raises(ValueError, parse_gerber_value, '00001111', (13,1))
+
+def test_write_format_validation():
+ """ Test write_gerber_value() format validation
+ """
+ assert_raises(ValueError, write_gerber_value, 69.0, (7, 5))
+ assert_raises(ValueError, write_gerber_value, 69.0, (5, 8))
+ assert_raises(ValueError, write_gerber_value, 69.0, (13,1))
+
+
+def test_detect_format_with_short_file():
+ """ Verify file format detection works with short files
+ """
+ assert_equal('unknown', detect_file_format('gerber/tests/__init__.py'))
generated by cgit (git 2.34.1) at 2024-11-05 03:41:35 +0000