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Gerber support for single quadrant arcs (G74).

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This commit is contained in:
Juan Pablo Caram
2014-11-20 21:43:32 -05:00
parent f2046e4e8c
commit 45327552de
7 changed files with 126 additions and 9 deletions
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bugs/_sources/index.txt
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@@ -12,7 +12,7 @@ Contents:
:maxdepth: 2 :maxdepth: 2
active active
excellonparse
Indices and tables Indices and tables
================== ==================

10
bugs/active.html
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@@ -24,6 +24,7 @@
<script type="text/javascript" src="_static/underscore.js"></script> <script type="text/javascript" src="_static/underscore.js"></script>
<script type="text/javascript" src="_static/doctools.js"></script> <script type="text/javascript" src="_static/doctools.js"></script>
<link rel="top" title="FlatCAM Bugs 1 documentation" href="index.html" /> <link rel="top" title="FlatCAM Bugs 1 documentation" href="index.html" />
<link rel="next" title="Excellon Parser" href="excellonparse.html" />
<link rel="prev" title="Welcome to FlatCAM Bugs’s documentation!" href="index.html" /> <link rel="prev" title="Welcome to FlatCAM Bugs’s documentation!" href="index.html" />
</head> </head>
<body> <body>
@@ -33,6 +34,9 @@
<li class="right" style="margin-right: 10px"> <li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index" <a href="genindex.html" title="General Index"
accesskey="I">index</a></li> accesskey="I">index</a></li>
<li class="right" >
<a href="excellonparse.html" title="Excellon Parser"
accesskey="N">next</a> |</li>
<li class="right" > <li class="right" >
<a href="index.html" title="Welcome to FlatCAM Bugs’s documentation!" <a href="index.html" title="Welcome to FlatCAM Bugs’s documentation!"
accesskey="P">previous</a> |</li> accesskey="P">previous</a> |</li>
@@ -131,6 +135,9 @@ zeros.</p>
<h4>Previous topic</h4> <h4>Previous topic</h4>
<p class="topless"><a href="index.html" <p class="topless"><a href="index.html"
title="previous chapter">Welcome to FlatCAM Bugs&#8217;s documentation!</a></p> title="previous chapter">Welcome to FlatCAM Bugs&#8217;s documentation!</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="excellonparse.html"
title="next chapter">Excellon Parser</a></p>
<h3>This Page</h3> <h3>This Page</h3>
<ul class="this-page-menu"> <ul class="this-page-menu">
<li><a href="_sources/active.txt" <li><a href="_sources/active.txt"
@@ -159,6 +166,9 @@ zeros.</p>
<li class="right" style="margin-right: 10px"> <li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index" <a href="genindex.html" title="General Index"
>index</a></li> >index</a></li>
<li class="right" >
<a href="excellonparse.html" title="Excellon Parser"
>next</a> |</li>
<li class="right" > <li class="right" >
<a href="index.html" title="Welcome to FlatCAM Bugs’s documentation!" <a href="index.html" title="Welcome to FlatCAM Bugs’s documentation!"
>previous</a> |</li> >previous</a> |</li>

35
bugs/excellonparse.rst Normal file
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@@ -0,0 +1,35 @@
Excellon Parser
===============
List of test files and their settings
-------------------------------------
========================== ============== ========= ===================
File Settings Parsed Ok Example
========================== ============== ========= ===================
FlatCAM_Drilling_Test.drl METRIC YES X76324 -> 76mm
Drill_All.drl METRIC NO X019708 -> 1.97mm X
TFTadapter.drl METRIC,TZ YES? X4.572 -> 4.57mm
rfduino dip.drl_ METRIC,TZ NO X236220 -> 23mm X
X-Y CONTROLLER - Drill... METRIC YES X76213 -> 76mm
ucontrllerBoard.drl INCH,TZ YES X1.96572
holes.drl INCH YES Y+019500 -> 1.95in
BLDC2003Through.drl INCH YES X+023625 -> 2.3in
PlacaReles.drl INCH,TZ YES Y-8200 -> -0.82in
AVR_Transistor_Tester.DRL INCH YES X033000 -> 3.3in
DRL INCH,00.0000 YES/NO* X004759 -> 0.47in
========================== ============== ========= ===================
(*) The units format is not recognized, thus it is parsed correctly
as long as the project is set for inches already.
Parser was:
.. code-block:: python
def parse_number(self, number_str):
if self.zeros == "L":
match = self.leadingzeros_re.search(number_str)
return float(number_str)/(10**(len(match.group(1)) + len(match.group(2)) - 2))
else: # Trailing
return float(number_str)/10000

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@@ -54,6 +54,10 @@
<li class="toctree-l2"><a class="reference internal" href="active.html#drill-number-parsing">Drill number parsing</a></li> <li class="toctree-l2"><a class="reference internal" href="active.html#drill-number-parsing">Drill number parsing</a></li>
</ul> </ul>
</li> </li>
<li class="toctree-l1"><a class="reference internal" href="excellonparse.html">Excellon Parser</a><ul>
<li class="toctree-l2"><a class="reference internal" href="excellonparse.html#list-of-test-files-and-their-settings">List of test files and their settings</a></li>
</ul>
</li>
</ul> </ul>
</div> </div>
</div> </div>

2
bugs/index.rst
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@@ -12,7 +12,7 @@ Contents:
:maxdepth: 2 :maxdepth: 2
active active
excellonparse
Indices and tables Indices and tables
================== ==================

82
camlib.py
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@@ -200,7 +200,7 @@ class Geometry(object):
log.warning("Solid_geometry not computed yet.") log.warning("Solid_geometry not computed yet.")
return 0 return 0
bounds = self.bounds() bounds = self.bounds()
return (bounds[2]-bounds[0], bounds[3]-bounds[1]) return bounds[2]-bounds[0], bounds[3]-bounds[1]
def get_empty_area(self, boundary=None): def get_empty_area(self, boundary=None):
""" """
@@ -1164,6 +1164,7 @@ class Gerber (Geometry):
# 2-clockwise, 3-counterclockwise # 2-clockwise, 3-counterclockwise
match = self.circ_re.search(gline) match = self.circ_re.search(gline)
if match: if match:
arcdir = [None, None, "cw", "ccw"]
mode, x, y, i, j, d = match.groups() mode, x, y, i, j, d = match.groups()
try: try:
@@ -1224,9 +1225,8 @@ class Gerber (Geometry):
if quadrant_mode == 'MULTI': if quadrant_mode == 'MULTI':
center = [i + current_x, j + current_y] center = [i + current_x, j + current_y]
radius = sqrt(i**2 + j**2) radius = sqrt(i**2 + j**2)
start = arctan2(-j, -i) start = arctan2(-j, -i) # Start angle
stop = arctan2(-center[1] + y, -center[0] + x) stop = arctan2(-center[1] + y, -center[0] + x) # Stop angle
arcdir = [None, None, "cw", "ccw"]
this_arc = arc(center, radius, start, stop, this_arc = arc(center, radius, start, stop,
arcdir[current_interpolation_mode], arcdir[current_interpolation_mode],
self.steps_per_circ) self.steps_per_circ)
@@ -1243,7 +1243,56 @@ class Gerber (Geometry):
continue continue
if quadrant_mode == 'SINGLE': if quadrant_mode == 'SINGLE':
log.warning("Single quadrant arc are not implemented yet. (%d)" % line_num) #log.warning("Single quadrant arc are not implemented yet. (%d)" % line_num)
center_candidates = [
[i + current_x, j + current_y],
[-i + current_x, j + current_y],
[i + current_x, -j + current_y],
[-i + current_x, -j + current_y]
]
valid = False
log.debug("I: %f J: %f" % (i, j))
for center in center_candidates:
radius = sqrt(i**2 + j**2)
# Make sure radius to start is the same as radius to end.
radius2 = sqrt((center[0] - x)**2 + (center[1] - y)**2)
if radius2 < radius*0.95 or radius2 > radius*1.05:
continue # Not a valid center.
# Correct i and j and continue as with multi-quadrant.
i = center[0] - current_x
j = center[1] - current_y
start = arctan2(-j, -i) # Start angle
stop = arctan2(-center[1] + y, -center[0] + x) # Stop angle
angle = abs(arc_angle(start, stop, arcdir[current_interpolation_mode]))
log.debug("ARC START: %f, %f CENTER: %f, %f STOP: %f, %f" %
(current_x, current_y, center[0], center[1], x, y))
log.debug("START Ang: %f, STOP Ang: %f, DIR: %s, ABS: %.12f <= %.12f: %s" %
(start*180/pi, stop*180/pi, arcdir[current_interpolation_mode],
angle*180/pi, pi/2*180/pi, angle <= (pi+1e-6)/2))
if angle <= (pi+1e-6)/2:
log.debug("########## ACCEPTING ARC ############")
this_arc = arc(center, radius, start, stop,
arcdir[current_interpolation_mode],
self.steps_per_circ)
current_x = this_arc[-1][0]
current_y = this_arc[-1][1]
path += this_arc
last_path_aperture = current_aperture
valid = True
break
if valid:
continue
else:
log.warning("Invalid arc in line %d." % line_num)
### Operation code alone ### Operation code alone
# Operation code alone, usually just D03 (Flash) # Operation code alone, usually just D03 (Flash)
@@ -1786,15 +1835,24 @@ class Excellon(Geometry):
:rtype: foat :rtype: foat
""" """
if self.zeros == "L": if self.zeros == "L":
# With leading zeros, when you type in a coordinate,
# the leading zeros must always be included. Trailing zeros
# are unneeded and may be left off. The CNC-7 will automatically add them.
# r'^[-\+]?(0*)(\d*)' # r'^[-\+]?(0*)(\d*)'
# 6 digits are divided by 10^4 # 6 digits are divided by 10^4
# If less than size digits, they are automatically added, # If less than size digits, they are automatically added,
# 5 digits then are divided by 10^3 # 5 digits then are divided by 10^3 and so on.
match = self.leadingzeros_re.search(number_str) match = self.leadingzeros_re.search(number_str)
return float(number_str)/(10**(len(match.group(1)) + len(match.group(2)) - 2)) return float(number_str)/(10**(len(match.group(1)) + len(match.group(2)) - 2))
else: # Trailing else: # Trailing
return float(number_str)/10000 # You must show all zeros to the right of the number and can omit
# all zeros to the left of the number. The CNC-7 will count the number
# of digits you typed and automatically fill in the missing zeros.
if self.units.lower() == "in": # Inches is 00.0000
return float(number_str)/10000
return float(number_str)/1000 # Metric is 000.000
def create_geometry(self): def create_geometry(self):
""" """
@@ -2621,6 +2679,16 @@ def arc(center, radius, start, stop, direction, steps_per_circ):
return points return points
def arc_angle(start, stop, direction):
if direction == "ccw" and stop <= start:
stop += 2*pi
if direction == "cw" and stop >= start:
stop -= 2*pi
angle = abs(stop - start)
return angle
def clear_poly(poly, tooldia, overlap=0.1): def clear_poly(poly, tooldia, overlap=0.1):
""" """
Creates a list of Shapely geometry objects covering the inside Creates a list of Shapely geometry objects covering the inside