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Implement rendering dotted fonts as a path for drilling #1677

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Implement rendering dotted fonts as a path for drilling #1677

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38 changes: 29 additions & 9 deletions bCNC/plugins/text.py
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,8 @@ def __init__(self, master):
("Depth", "mm", 0.0, _("Working Depth")),
("FontSize", "mm", 10.0, _("Font size")),
("FontFile", "file", "", _("Font file")),
("Closed", "bool", True, _("Close Contours")),
("Closed", "bool", True, _("Close Contours")),
("DrillDots", "bool", False,_("Dotted font (drill holes)")),
("ImageToAscii","file", "", _("Image to Ascii")),
("CharsWidth", "int", 80, _("Image chars width"))]
self.buttons.append("exe")
Expand All @@ -55,6 +56,7 @@ def execute(self, app):
textToWrite = to_decode(self["Text"])
fontFileName = self["FontFile"]
closed = self["Closed"]
drillDots = self["DrillDots"]
imageFileName = self["ImageToAscii"]
charsWidth = self["CharsWidth"]

Expand Down Expand Up @@ -121,7 +123,7 @@ def execute(self, app):
if(not gc):
gc = font.get_glyph_contours(0,closed)#standard glyph for missing glyphs (complex glyph)
if(gc and not c==' '): #FIXME: for some reason space is not mapped correctly!!!
self.writeGlyphContour(block, font, gc, fontSize, depth, xOffset, yOffset)
self.writeGlyphContour(block, font, gc, fontSize, depth, drillDots, xOffset, yOffset)

if glyphIndx < len(adv):
xOffset += adv[glyphIndx]
Expand All @@ -144,7 +146,7 @@ def execute(self, app):


#Write GCode from glyph contours
def writeGlyphContour(self,block,font,contours,fontSize,depth,xO, yO):
def writeGlyphContour(self,block,font,contours,fontSize,depth,drillDots,xO, yO):
width = font.header.x_max - font.header.x_min
height = font.header.y_max - font.header.y_min
scale = fontSize / font.header.units_per_em
Expand All @@ -153,12 +155,30 @@ def writeGlyphContour(self,block,font,contours,fontSize,depth,xO, yO):
for cont in contours:
block.append("( ---------- cut-here ---------- )")
block.append(CNC.zsafe())
block.append(CNC.grapid(xO + cont[0].x * scale , yO + cont[0].y * scale))
block.append(CNC.zenter(depth))
block.append(CNC.gcode(1, [("f",CNC.vars["cutfeed"])]))
for p in cont:
block.append(CNC.gline(xO + p.x * scale, yO + p.y * scale))

if drillDots:
self.drillContour(block,cont,scale,depth,xO,yO)
else:
self.millContour(block,cont,scale,depth,xO,yO)

def millContour(self,block,cont,scale,depth,x0,y0):
block.append(CNC.grapid(x0 + cont[0].x * scale , y0 + cont[0].y * scale))
block.append(CNC.zenter(depth))
block.append(CNC.gcode(1, [("f",CNC.vars["cutfeed"])]))
for p in cont:
block.append(CNC.gline(x0 + p.x * scale, y0 + p.y * scale))

def drillContour(self,block,cont,scale,depth,x0,y0):
xMin = min(p.x for p in cont)
xMax = max(p.x for p in cont)
yMin = min(p.y for p in cont)
yMax = max(p.y for p in cont)
x = (xMin + xMax) / 2
y = (yMin + yMax) / 2
block.append(CNC.zsafe())
block.append(CNC.grapid(x0 + x * scale, y0 + y * scale))
block.append(CNC.gcode(1, [("f",CNC.vars["cutfeed"])]))
block.append(CNC.zenter(depth))
block.append(CNC.zsafe())

def image_to_ascii(self,image):
ascii_chars = [ '#', 'A', '@', '%', 'S', '+', '<', '*', ':', ',', '.']
Expand Down