def material(self, xSize, ySize):
if self.svg is not None:
self.offset = 0.0
path = self.materialPath
if path is None:
self.materialPath = Path(stroke_width=.5, stroke='red', \
fill='none')
path = self.materialPath
path.push('M', (self.scaleOffset((0, 0))))
path.push('L', (self.scaleOffset((xSize, 0))))
path.push('L', (self.scaleOffset((xSize, ySize))))
path.push('L', (self.scaleOffset((0, ySize))))
path.push('L', (self.scaleOffset((0, 0))))
self.path.push('M', (self.scaleOffset((0, 0))))
# dwg = svgwrite.Drawing(name, (svg_size_width, svg_size_height), \
# debug=True)
cfg = self.cfg
if self.d is not None:
orientation = cfg.orientation
if orientation == O_UPPER_LEFT:
p0 = (0.0, 0.0)
p1 = (xSize, 0.0)
p2 = (xSize, -ySize)
p3 = (0.0, -ySize)
elif orientation == O_LOWER_LEFT:
p0 = (0.0, 0.0)
p1 = (xSize, 0.0)
p2 = (xSize, ySize)
p3 = (0.0, ySize)
elif orientation == O_UPPER_RIGHT:
p0 = (0.0, 0.0)
p1 = (-xSize, 0.0)
p2 = (-xSize, -ySize)
p3 = (0.0, -ySize)
elif orientation == O_LOWER_RIGHT:
p0 = (0.0, 0.0)
p1 = (-xSize, 0.0)
p2 = (-xSize, ySize)
p3 = (0.0, ySize)
elif orientation == O_CENTER:
p0 = (-xSize / 2, -ySize / 2)
p1 = (xSize / 2, -ySize / 2)
p2 = (xSize / 2, ySize / 2)
p3 = (-xSize / 2, ySize / 2)
elif orientation == O_POINT:
dxfInput = cfg.dxfInput
p0 = (dxfInput.xMin, dxfInput.yMin)
p1 = (dxfInput.xMin, dxfInput.yMax)
p2 = (dxfInput.xMax, dxfInput.yMax)
p3 = (dxfInput.xMax, dxfInput.yMin)
else:
ePrint("invalid orientation")
self.d.add(dxf.line(p0, p1, layer=self.lBorder))
self.d.add(dxf.line(p1, p2, layer=self.lBorder))
self.d.add(dxf.line(p2, p3, layer=self.lBorder))
self.d.add(dxf.line(p3, p0, layer=self.lBorder))
def setQuadrant(self, args):
val = args[1].lower()
self.quadrant = None
for (x, i) in self.quadrantValues:
if val == x:
self.quadrant = i
break
if self.quadrant is None:
ePrint("invalid quadrant %s" % val)
raise ValueError("invalid quadrant" % val)
def readFont(self, fontFile):
inp = open(fontFile, 'rb')
c = ord(' ')
while True:
minVal = 99
maxVal = -99
val = inp.read(5)
if len(val) == 0:
break
index = int(val.decode())
val = inp.read(3)
length = int(val.decode())
l = ord(inp.read(1)) - ord('R')
r = ord(inp.read(1)) - ord('R')
chArray = []
move = True
for i in range(0, length - 1):
while True:
x = inp.read(1)
if ord(x) >= ord(' '):
break
y = inp.read(1)
if ord(x) == ord(' ') and ord(y) == ord('R'):
move = True
else:
x = ord(x) - ord('R')
y = ord(y) - ord('R')
if y > maxVal:
maxVal = y
if y < minVal:
minVal = y
chArray.append([x + abs(l), y, move])
move = False
self.letter.append(Letter(r, l, chArray))
val = inp.read(1)
if ord(val) != 10:
ePrint("error")
if self.dbg:
dprt("%3d '%1c' length %2d index %4d len %2d l %3d r %3d "\
"max %3d min %3d" % \
(c, c, length, index, len(chArray), l, r, maxVal, minVal))
j = 0
for i, (x, y, move) in enumerate(chArray):
dprt("(%2d %3d %3d %5s)" % (i, x, y, move), end=" ")
j += 1
if j & 3 == 0:
dprt()
if j & 3 != 0:
dprt()
c += 1
if maxVal > self.max:
self.max = maxVal
if minVal < self.min:
self.min = minVal
def setup(self):
(xGrid, yGrid) = self.grid
(xOffset, yOffset) = self.offset
(xSpace, ySpace) = self.spacing
self.xSize = 2 * xOffset + (xGrid - 1) * xSpace
self.ySize = 2 * yOffset + (yGrid - 1) * ySpace
orientation = self.cfg.orientation
if orientation == O_UPPER_LEFT:
if self.top:
y = -yOffset
ySpace = -ySpace
else:
y = -self.ySize + yOffset
elif orientation == O_LOWER_LEFT:
if self.top:
y = self.ySize - yOffset
ySpace = -ySpace
else:
y = yOffset
else:
ePrint("drillHolder invalid orientation")
index = 0
self.holeInfo = []
for _ in range(yGrid):
x = xOffset
for _ in range(xGrid):
(size, label) = self.holes[index]
self.holeInfo.append((x, y, size, label))
x += xSpace
index += 1
y += ySpace
(xMountOffset, xMountGrid) = self.xMount
(yMountOffset, yMountGrid) = self.yMount
xMountSpace = (self.xSize - 2 * xMountOffset) / (xMountGrid - 1)
yMountSpace = (self.ySize - 2 * yMountOffset) / (yMountGrid - 1)
self.mountInfo = []
y = yMountOffset
for _ in range(yMountGrid):
x = xMountOffset
for _ in range(xMountGrid):
self.mountInfo.append((x, y))
x += xMountSpace
y += yMountSpace
def open(self, inFile, drawDxf=True, drawSvg=True):
if drawSvg and self.svg is None:
svgFile = inFile + ".svg"
try:
self.svg = Drawing(svgFile, profile='full', fill='black')
self.path = Path(stroke_width=.5, stroke='black', fill='none')
except IOError:
self.svg = None
self.path = None
ePrint("svg file open error %s" % (svgFile))
if drawDxf and self.d is None:
dxfFile = inFile + "_ngc.dxf"
try:
self.d = dxf.drawing(dxfFile)
self.layerIndex = 0
self.d.add_layer('0', color=self.color, lineweight=0)
self.setupLayers()
except IOError:
self.d = None
ePrint("dxf file open error %s" % (dxfFile))
def labelHoles(self, _):
cfg = self.cfg
if cfg.probe:
cfg.probeInit()
prb = cfg.prb
(x, y) = self.holeInfo[0][0:2]
prb.write("g0 x %7.4f y %7.4f\n" % (x, y + self.textOffset))
prb.write("g1 z%6.4f\n" % (cfg.retract))
prb.blankLine()
prb.write("g38.2 z%6.4f f%3.1f(reference probe)\n" %
(cfg.probeDepth, cfg.probeFeed))
prb.write("g10 L20 P0 z0.000 (zero z)\n")
prb.write("g0 z%6.4f\n" % (cfg.retract))
prb.blankLine()
if cfg.level:
try:
inp = open(cfg.probeData, "r")
except IOError:
ePrint("unable to open level data %s" % (cfg.probeData))
cfg.level = False
return
(x0, y0, zRef) = inp.readline().split(" ")[:3]
#zRef = float(zRef)
x0 = float(x0)
y0 = float(y0)
zRef = 0.0
levelData = []
for probeData in inp:
(x, y, z) = probeData.split(" ")[:3]
levelData.append((float(x), float(y), float(z) - zRef))
levelIndex = 0
inp.close()
font = cfg.font
font.setHeight(self.letterHeight)
offset = self.textOffset
if offset < 0:
offset -= self.letterHeight / 2
else:
offset += self.letterHeight / 2
m = self.cfg.mill
m.safeZ()
zOffset = 0.0
if cfg.level:
m.write("\nm5 (stop spindle to probe)\n")
m.write("g4 p3\n")
m.write("g0 x %7.4f y %7.4f\n" % (x0, y0))
m.retract()
m.write("g38.2 z%6.4f f%3.1f (probe reference point)\n" %
(cfg.probeDepth, cfg.probeFeed))
m.write("g10 L20 P0 z0.000 (zero z)\n")
m.retract()
m.write("m3 (start spindle)\n")
m.write("g4 p3\n")
for (x, y, _, text) in self.holeInfo:
if len(text) != 0:
y += offset
if cfg.probe:
prb.write("g0 x %7.4f y %7.4f\n" % (x, y))
prb.write("g38.2 z%6.4f f%3.1f(reference probe)\n" %
(cfg.probeDepth, cfg.probeFeed))
prb.write("g0 z%6.4f\n" % (cfg.retract))
prb.blankLine()
if cfg.level:
found = False
if levelIndex < len(levelData):
(xProbe, yProbe, zOffset) = levelData[levelIndex]
if abs(x - xProbe) < MIN_DIST and \
abs(y - yProbe) < MIN_DIST:
found = True
levelIndex += 1
if not found:
for levelIndex, (xProbe, yProbe, zOffset) in \
enumerate(levelData):
if abs(x - xProbe) < MIN_DIST and \
abs(y - yProbe) < MIN_DIST:
found = True
levelIndex += 1
if not found:
zOffset = 0.0
ePrint("level data not found")
font.setZOffset(zOffset)
m.write("\n(x %7.4f y %7.4f zOffset %6.4f %s)\n" % \
(x, y, zOffset, text))
font.mill((x, y), text, center=True)
def rectPocket(self, args):
layer = args[1]
cfg = self.cfg
cfg.ncInit()
segments = cfg.dxfInput.getPath(layer)
for seg in segments:
if len(seg) != 4:
ePrint("rectPocket wrong number if sides")
continue
vert = []
horiz = []
for l in seg:
if l.type == LINE:
if abs(l.p0[0] - l.p1[0]) < MIN_DIST:
vert.append(l)
elif abs(l.p0[1] - l.p1[1]) < MIN_DIST:
horiz.append(l)
else:
ePrint("rectPocket line not horizontal or vertical")
continue
else:
ePrint("rectPocket segment not a line")
continue
if len(vert) != 2 or len(horiz) != 2:
ePrint("rectPocket incorrect number of sides")
continue
hl0 = horiz[0]
vl0 = vert[0]
w = abs(hl0.p0[0] - hl0.p1[0]) # width
h = abs(vl0.p0[1] - vl0.p1[1]) # height
x = min(hl0.p0[0], hl0.p1[0])
y = min(vl0.p0[1], vl0.p1[1])
self.drawRect(x, y, w, h)
stepOver = self.getStepOver()
self.path = []
self.index = 0
prev = None
offset = cfg.endMillSize / 2.0 + cfg.finishAllowance
if self.spiral:
dist = min(h, w) / 2.0 - offset
if dist < 0:
ePrint("rectPocket rectangle too small for end mill")
continue
passes = int(ceil(dist / stepOver))
stepOver = dist / passes
dprt("x %7.4f y %7.4f w %7.4f h %7.4f" % (x, y, w, h))
dprt("passes %2d stepOver %7.4f dist %7.4f" % \
(passes, stepOver, dist))
x0 = x + offset
y0 = y + offset
w -= 2.0 * offset
h -= 2.0 * offset
for i in range(passes + 1):
dprt("pass %2d x0 %7.4f y0 %7.4f w %7.4f h %7.4f" % \
(i, x0, y0, w, h))
prev = self.millRect(prev, x0, y0, w, h, cfg.dir)
x0 += stepOver
y0 += stepOver
w -= 2 * stepOver
h -= 2 * stepOver
self.millPath()
else:
if min(h, w) < cfg.endMillSize + cfg.finishAllowance * 2.0:
ePrint("rectPocket rectangle too small for end mill")
continue
dist = h - 4 * offset + (1 - self.getStepOver())
passes = int(ceil(dist / stepOver))
stepOver = dist / passes
r = cfg.endMillSize / 2.0
s = stepOver / 2.0
d = sqrt(r*r - s*s)
dprt("x %7.4f y %7.4f w %7.4f h %7.4f" % (x, y, w, h))
dprt("passes %2d offset %7.4f dist %7.4f stepOver %7.4f" \
"d %7.4f" % \
(passes, offset, dist, stepOver, d))
x0 = x + offset
y0 = y + offset
w -= 2.0 * offset
h -= 2.0 * offset
prev = self.millRect(None, x0, y0, w, h, cfg.dir)
self.drawRect(x0 + offset, y0 + offset, \
w - 2*offset, h - 2*offset)
x0 += offset + d
y0 += stepOver
w -= (offset + d) * 2
h -= offset * 2
if h > 0 and w > 0:
sign = 1
for i in range(passes):
dprt("pass %2d x0 %7.4f y0 %7.4f w %7.4f h %7.4f" % \
(i, x0, y0, w, h))
x1 = x0 + w
if sign > 0:
p0 = (x0, y0)
p1 = (x1, y0)
else:
p0 = (x1, y0)
p1 = (x0, y0)
sign = - sign
if prev is not None:
self.addLineSeg(prev, p0)
self.addLineSeg(p0, p1)
self.drawMill(p0)
self.drawMill(p1)
prev = p1
y0 += stepOver
self.millPath()
def rectSlot(self, args):
layer = args[1]
cfg = self.cfg
cfg.ncInit()
segments = cfg.dxfInput.getPath(layer)
millSeg = []
for seg in segments:
if len(seg) != 4:
ePrint("rectPocket wrong number of sides")
continue
vert = []
horiz = []
arc = []
for l in seg:
if l.type == LINE:
if abs(l.p0[0] - l.p1[0]) < MIN_DIST:
vert.append(l)
elif abs(l.p0[1] - l.p1[1]) < MIN_DIST:
horiz.append(l)
elif l.type == ARC:
arc.append(l)
if len(arc) == 2:
if abs(arc[0].r - cfg.endMillSize / 2.0) < MIN_DIST:
path = []
path.append(Line(arc[0].c, arc[1].c))
millSeg.append(path)
else:
a0 = arc[0]
a1 = arc[1]
if len(vert) == 2:
x = a0.p0.x
if a0.c.y > a1.c.y:
(a0, a1) = (a1, a0)
y = a0.c.y + (a1.c.y - a0.c.y) / 2
w = abs(a0.p0.x - a0.p1.x)
h = abs(a0.c.y - a1.c.y)
self.pocket(x, y, w, h)
elif len(horiz) == 2:
if a0.c.x > a1.c.y:
(a0, a1) = (a1, a0)
x = a0.c.x + (a1.c.x - a0.c.x) / 2
y = a0.p0.y
w = abs(a0.c.x - a1.c.x)
h = abs(a0.p0.y - a1.p1.y)
self.pocket(x, y, w, h)
last = cfg.mill.last
mp = cfg.getMillPath()
while len(millSeg):
minDist = MAX_VALUE
index = None
for i, path in enumerate(millSeg):
dist0 = xyDist(last, path[0].p0)
dist1 = xyDist(last, path[-1].p1)
if dist0 < dist1:
dist = dist0
swap = False
else:
dist = dist1
swap = True
if dist < minDist:
minDist = dist
minSwap = swap
index = i
path = millSeg.pop(index)
if swap:
path = reverseSeg(path, False)
mp.millPath(path, closed=False)
def corner(self, args, dbg=True):
cfg = self.cfg
# direction = CCW
# if cfg.dir is not None and cfg.dir == 'CW':
# direction = CW
cfg.ncInit()
if SIMPLE_BOX:
dxf = cfg.dxfInput
xMin = dxf.xMin
xMax = dxf.xMax
yMin = dxf.yMin
yMax = dxf.yMax
q = self.quadrant
if q == XPLUS_YPLUS:
xMin = (xMax + xMin) / 2
yMin = (yMax + yMin) / 2
elif q == XMINUS_YPLUS:
xMax = (xMax + xMin) / 2
yMin = (yMax + yMin) / 2
elif q == XMINUS_YMINUS:
xMax = (xMax + xMin) / 2
yMax = (yMax + yMin) / 2
elif q == XPLUS_YMINUS:
xMin = (xMax + xMin) / 2
yMax = (yMax + yMin) / 2
p0 = (xMin, yMax)
p1 = (xMax, yMax)
p2 = (xMax, yMin)
p3 = (xMin, yMin)
box = []
box.append(Line(p0, p1))
box.append(Line(p1, p2))
box.append(Line(p2, p3))
box.append(Line(p3, p0))
dprt("\nsimple box")
boxLayer = "%02d-00-a-box" % self.layerNum
for l in box:
l.prt()
l.draw(layer=boxLayer)
dprt()
layer = args[1]
segments = cfg.dxfInput.getPath(layer)
if len(args) > 2:
if args[2] == "break":
ePrint("break")
# for seg in segments:
# for l in seg:
# l.prt()
# l.draw()
# dprt()
mp = cfg.getMillPath()
for seg in segments:
splitSeg = splitArcs(seg)
xMax = yMax = MIN_VALUE
xMin = yMin = MAX_VALUE
for l in splitSeg:
l.prt()
for (x, y) in (l.p0, l.p1):
if x > xMax: # check x
xMax = x
if x < xMin:
xMin = x
if y > yMax: # check y
yMax = y
if y < yMin:
yMin = y
(self.xMin, self.yMin) = (xMin, yMin)
(self.xMax, self.yMax) = (xMax, yMax)
dprt("xMin %7.4f xMax %7.4f ymin %7.4f yMax %7.4f" % \
(self.xMin, self.xMax, self.yMin, self.yMax))
dxf = self.cfg.dxfInput
dprt("xMin %7.4f xMax %7.4f ymin %7.4f yMax %7.4f" % \
(dxf.xMin, dxf.xMax, dxf.yMin, dxf.yMax))
# for l in splitSeg:
# l.draw()
if not SIMPLE_BOX:
box = self.createBox(splitSeg)
if box is None:
continue
dprt("\ngeneral box")
boxLayer = "%02d-00-a-box" % self.layerNum
for l in box:
l.prt()
l.draw(layer=boxLayer)
dprt()
seg1 = []
for l in splitSeg:
(x0, y0) = l.p0
(x1, y1) = l.p1
if l.type == ARC:
p = ((x0 + x1) / 2, (y0 + y1) / 2)
if (inside(p, box) & 1) == 0:
continue
elif l.type == LINE:
if (inside(l.p0, box) & 1) == 0 and \
(inside(l.p1, box) & 1) == 0:
continue
seg1.append(l)
dprt("seg len %d" % (len(seg1)))
if len(seg1) == 0:
continue
# for l in seg1:
# l.prt()
# l.draw()
dprt("closePath")
self.closePath(seg1)
closeLayer = "%02d-00-b-close" % self.layerNum
for l in seg1:
l.prt()
l.draw(layer=closeLayer)
if self.quadrant <= XPLUS_YMINUS:
self.setTrim()
offset = cfg.endMillSize / 2.0 + cfg.finishAllowance
passes = self.maxPasses
# passOffset = self.passOffset
if passes == 0:
dprt("\nfind max dist")
maxD = MIN_VALUE
for l in seg1:
if l.index <= INDEX_MARKER:
continue
d = l.pointDistance((self.trimX, self.trimY))
if d is not None:
l.prt()
dprt("d %7.4f" % (d))
maxD = max(maxD, d)
total = maxD - offset
passes = int(round(total / self.passOffset))
# passOffset = total / passes
dprt("maxD %7.4f total %7.4f passes %d passOffset %7.4f" % \
(maxD, total, passes, self.passOffset))
path = []
for i in range(passes):
dprt("\npass %2d offset %7.4f\n" % (i, offset))
seg2 = createPath(seg1,
offset,
outside=True,
keepIndex=True,
split=False,
dbg=True)[0]
pathLayer = "%02d-%02d-c-path" % (self.layerNum, i)
for l in seg2:
l.draw(layer=pathLayer)
if self.quadrant <= XPLUS_YMINUS:
dprt()
seg3 = self.trim(seg2)
trimLayer = "%02d-%02d-d-trim" % (self.layerNum, i)
for l in seg3:
l.draw(layer=trimLayer)
l.label(layer=trimLayer)
else:
seg3 = []
for l in seg2:
if l.index <= INDEX_MARKER:
continue
seg3.append(l)
print("seg3Len %d" % (len(seg3)))
if len(seg3) == 0:
break
path.append(seg3)
# dprt()
# for l in seg3:
# l.prt()
# l.draw()
offset += self.passOffset
cfg.mill.write("(corner %s)\n" % \
(self.quadrantValues[self.quadrant][0]))
if self.alternate:
finalPath = []
lastPoint = None
for (i, seg) in enumerate(path):
if (i & 1) != 0:
seg = reverseSeg(seg)
if lastPoint is not None:
finalPath.append(Line(lastPoint, seg[0].p0))
finalPath += seg
lastPoint = finalPath[-1].p1
finalPath = reverseSeg(finalPath, makeCopy=False)
if self.quadrant <= XPLUS_YMINUS:
self.addEntry(finalPath)
self.addExit(finalPath)
else:
self.addEntry1(finalPath)
self.addExit1(finalPath)
dprt()
finalLayer = "%02d-%02d-e-final" % (self.layerNum, i)
for l in finalPath:
l.prt()
l.draw(layer=finalLayer)
mp.millPath(finalPath, closed=False, minDist=False)
else:
for seg in reversed(path):
if self.quadrant <= XPLUS_YMINUS:
self.addEntry(seg)
self.addExit(seg)
else:
self.addEntry1(seg)
self.addExit1(seg)
dprt()
finalLayer = "%02d-%02d-e-final" % (self.layerNum, i)
for l in seg:
l.prt()
l.draw(layer=finalLayer)
mp.millPath(seg, closed=False, minDist=False)
self.layerNum += 1
def addExit(self, path):
l = path[-1]
(x, y) = l.p1
dx = x - l.p0[0]
dy = y - l.p0[1]
r = self.leadRadius
if abs(x - self.trimX) < MIN_DIST:
if self.xPlus:
x += r
if dy > 0:
a0 = 90
a1 = 180
direction = CW
ex = 0
else:
a0 = 180
a1 = 270
direction = CCW
ex = 1
else:
x -= r
if dy < 0:
a0 = 270
a1 = 360
direction = CW
ex = 2
else:
a0 = 0
a1 = 90
direction = CCW
ex = 3
elif abs(y - self.trimY) < MIN_DIST:
if self.yPlus:
y += r
if dx < 0:
a0 = 180
a1 = 270
direction = CW
ex = 4
else:
a0 = 270
a1 = 360
direction = CCW
ex = 5
else:
y -= r
if dx > 0:
a0 = 0
a1 = 90
direction = CW
ex = 6
else:
a0 = 90
a1 = 180
direction = CCW
ex = 7
else:
ePrint("error")
return
dprt("exit %d direction %s" % (ex, oStr(self.cfg.dir)))
l = Arc((x, y), r, a0, a1, direction=direction)
path.append(l)
def addEntry(self, path):
l = path[0]
(x, y) = l.p0
dx = x - l.p1[0]
dy = y - l.p1[1]
r = self.leadRadius
if abs(x - self.trimX) < MIN_DIST:
if self.xPlus:
x += r
if dy > 0:
a0 = 90
a1 = 180
direction = CCW
en = 0
else:
a0 = 180
a1 = 270
direction = CW
en = 1
else:
x -= r
if dy < 0:
a0 = 270
a1 = 360
direction = CCW
en = 2
else:
a0 = 0
a1 = 90
direction = CW
en = 3
elif abs(y - self.trimY) < MIN_DIST:
if self.yPlus:
y += r
if dx < 0:
a0 = 180
a1 = 270
direction = CCW
en = 4
else:
a0 = 270
a1 = 360
direction = CW
en = 5
else:
y -= r
if dx > 0:
a0 = 0
a1 = 90
direction = CCW
en = 6
else:
a0 = 90
a1 = 180
direction = CW
en = 7
else:
ePrint("addEntry error x %7.4f xTrim %7.4f y %7.4f yTrim %7.4f" % \
(x, self.trimX, y, self.trimY))
return
dprt("entry %d direction %s" % (en, oStr(self.cfg.dir)))
l = Arc((x, y), r, a0, a1, direction=direction)
path.insert(0, l)
