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Make this use floats to allow scaling, change size to mm #5

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Make this use floats to allow scaling, change size to mm #5

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38 changes: 25 additions & 13 deletions ttgLib/TextToGcode.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,21 +22,31 @@

class ttg:
def __init__(self, text, size, rotation, method, feedRate):
"""
Creates a new instance of the ttg class.

Args:
text (str): The text to be converted to GCODE.
size (int or float): The size of the text in mm.
rotation (int or float): The rotation of the text in degrees.
method (str): The return method, either "visualize", "return", or "file".
feedRate (int): The feed rate for the GCODE in mm/min.
"""
# validate input types
if type(text) != str:
raise Exception("TTG ERROR - passed text needs to be a string")
if not isinstance(text, str):
raise Exception("TTG ERROR - passed text must be a string")

if type(size) != int:
raise Exception("TTG ERROR - passed size needs to be a int")
if not isinstance(size, int) and not isinstance(size, float):
raise Exception("TTG ERROR - passed size must be an int or float")

if type(rotation) != int:
raise Exception("TTG ERROR - passed size rotation to be a int")
if not isinstance(rotation, int) and not isinstance(rotation, float):
raise Exception("TTG ERROR - passed rotation must be an int or float")

if type(method) != str:
raise Exception("TTG ERROR - passed return method needs to be a string")
if not isinstance(method, str):
raise Exception("TTG ERROR - passed return method must be a string")

if type(feedRate) != int:
raise Exception("TTG ERROR - passed feed rate needs to be a int")
if not isinstance(feedRate, int):
raise Exception("TTG ERROR - passed feed rate must be an int")

# set basic passed args
self.text = text
Expand All @@ -63,14 +73,16 @@ def __init__(self, text, size, rotation, method, feedRate):
if self.rotation != 0:
self.rotationNeeded = True

self.scale = float(self.size) / 9.0

def finalize(self):
finalOperations = []

for point in self.operations:
if type(point) is tuple:
# if size is not 1mm scale the points, if it is do nothing
if self.size != 1:
scaledPoint = (point[0] * self.size, point[1] * self.size)
if self.scale != 1:
scaledPoint = (point[0] * self.scale, point[1] * self.scale)
else:
scaledPoint = (point[0], point[1])

Expand Down Expand Up @@ -159,7 +171,7 @@ def finalize(self):
lastMoveType = "slow"
pass

if type(command) == tuple:
if isinstance(command, tuple):
if lastMoveType == "slow":
currentCommand += self.slowCmd
elif lastMoveType == "fast":
Expand Down