331 lines
15 KiB
Python
331 lines
15 KiB
Python
#!/usr/bin/env python3
|
|
|
|
'''
|
|
svgPianoScale.py
|
|
Inkscape generator plugin for automatic creation schemes of musical scales and chords.
|
|
|
|
Copyright (C) 2011 Iljin Alexender <piroxiljin(a)gmail.com>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
'''
|
|
|
|
__version__ = "1.0.1"
|
|
# Original by Alexander Iljin
|
|
# Some mods to 0.91 by Neon22 2016
|
|
|
|
import inkex
|
|
import re
|
|
import math
|
|
from datetime import *
|
|
from lxml import etree
|
|
|
|
notes = ('C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#', 'A', 'A#', 'B')
|
|
keys_color = ('W', 'B', 'W', 'B', 'W', 'W', 'B', 'W', 'B', 'W', 'B', 'W') # 12 notes
|
|
keys = {'C':'W', 'C#':'B', 'D':'W', 'D#':'B', 'E':'W', 'F':'W', 'F#':'B', 'G':'W',
|
|
'G#':'B', 'A':'W', 'A#':'B', 'B':'W' }
|
|
keys_numbers = {'C':'0', 'C#':'0', 'D':'1', 'D#':'1', 'E':'2', 'F':'3', 'F#':'3', 'G':'4',
|
|
'G#':'4', 'A':'5', 'A#':'5', 'B':'6' }
|
|
keys_order = {'C':'0', 'C#':'1', 'D':'2', 'D#':'3', 'E':'4', 'F':'5', 'F#':'6', 'G':'7',
|
|
'G#':'8', 'A':'9', 'A#':'10', 'B':'11' }
|
|
|
|
intervals = ("2212221", "2122212", "1222122", "2221221", "2212212", "2122122", "1221222")
|
|
|
|
# Drawing style
|
|
White = '#ffffff'
|
|
Black = '#000000'
|
|
Marker_color = '#b3b3b3' # Ellipse fill color
|
|
|
|
helpSheets = [["Ionian (major) scale", "2212221"],
|
|
["Dorian scale", "2122212"],
|
|
["Phrygian scale", "1222122"],
|
|
["Lydian scale", "2221221"],
|
|
["Mixolydian scale", "2212212"],
|
|
["Aeolian (natural minor) scale", "2122122"],
|
|
["Locrian scale", "1221222"]
|
|
]
|
|
|
|
def keyNumberFromNote(note):
|
|
""" Given a note such as C1 or C#1 where:
|
|
- the 1 defines the octave (starts from 1)
|
|
- the # defines note is sharp
|
|
return the notes numeric value, from 0
|
|
"""
|
|
note = note.upper().strip()
|
|
octave = 1
|
|
if '#' in note : # sharp
|
|
if (len(note) > 2) and note[2].isdigit():
|
|
octave = int(note[2])
|
|
note = note[0:2]
|
|
else:
|
|
if (len(note) > 1) and note[1].isdigit():
|
|
octave = int(note[1])
|
|
note = note[0]
|
|
return int(keys_order[note])+(octave-1)*12
|
|
|
|
def whiteKeyCountInRange(firstNote, lastNote):
|
|
""" Count the White notes between
|
|
- used by createPiano
|
|
"""
|
|
count = 0
|
|
for key in range(firstNote, lastNote+1):
|
|
if keys_color[key%12] == "W":
|
|
count += 1
|
|
return count
|
|
|
|
def colorFromKey(keyNumber):
|
|
""" Return B or W based on key. Use octaves
|
|
- used by create_markers
|
|
"""
|
|
return keys_color[keyNumber%12]
|
|
|
|
class SVGPianoScale (inkex.Effect):
|
|
marker_radius_factor = 0.42 # position marker in X on piano key
|
|
marker_y_offset_factor = 0.92 # position marker in Y
|
|
|
|
def __init__(self):
|
|
inkex.Effect.__init__(self)
|
|
self.arg_parser.add_argument("--firstNote", default="C1")
|
|
self.arg_parser.add_argument("--lastNote", default="B2")
|
|
self.arg_parser.add_argument("--tab")
|
|
self.arg_parser.add_argument("--intervals")
|
|
self.arg_parser.add_argument("--keynote")
|
|
self.arg_parser.add_argument("--scale", type=int)
|
|
self.arg_parser.add_argument("--helpSheet", type=int)
|
|
|
|
def calculate_size_and_positions(self):
|
|
" Determine page size and define key dimensions "
|
|
self.doc_width = self.svg.unittouu(self.document.getroot().get('width'))
|
|
self.doc_height = self.svg.unittouu(self.document.getroot().get('height'))
|
|
# Size of the keys
|
|
self.black_key_width = self.svg.unittouu('3.6 mm');
|
|
self.white_key_width = self.svg.unittouu('6 mm');
|
|
self.black_key_height = self.svg.unittouu('18 mm');
|
|
self.white_key_height = self.svg.unittouu('30 mm');
|
|
|
|
def createBlackKey(self, parent, number):
|
|
""" Insert Black key into scene
|
|
- number times width is X position
|
|
"""
|
|
key_atts = {'x':str(self.white_key_width * number + self.white_key_width - self.black_key_width/2),
|
|
'y':'0.0',
|
|
'width':str(self.black_key_width),
|
|
'height':str(self.black_key_height),
|
|
'ry':str(self.svg.unittouu('0.7 mm')),
|
|
'style':'fill:%s;stroke:%s;stroke-width:%s;stroke-opacity:1;fill-opacity:1' %(Black, Black, self.svg.unittouu('0.1 mm')) }
|
|
white_key = etree.SubElement(parent, 'rect', key_atts)
|
|
|
|
def createWhiteKey(self, parent, number):
|
|
""" Insert White key into scene
|
|
- number times width is X position
|
|
"""
|
|
key_atts = {'x':str(self.white_key_width * number),
|
|
'y':'0.0',
|
|
'width':str(self.white_key_width),
|
|
'height':str(self.white_key_height),
|
|
'ry':str(self.svg.unittouu('0.7 mm')),
|
|
'style':'fill:%s;stroke:%s;stroke-width:%s;stroke-opacity:1;fill-opacity:1' % (White, Black, self.svg.unittouu('0.25 mm'))}
|
|
white_key = etree.SubElement(parent, 'rect', key_atts)
|
|
|
|
def createKeyByNumber(self, parent, keyNumber):
|
|
""" Use Keynumber to detrmine octave and position within
|
|
- draw correct key on basis of note in octave sequence.
|
|
"""
|
|
octave = math.floor(keyNumber / 12) + 1
|
|
note = keyNumber % 12
|
|
key = int(keys_numbers[notes[note]])
|
|
if keys_color[note] == "W":
|
|
self.createWhiteKey(parent, key+7*(octave-1))
|
|
else:
|
|
self.createBlackKey(parent, key+7*(octave-1))
|
|
|
|
def createKeyInRange(self, parent, firstKeyNum, lastKeyNum):
|
|
""" Draw keys in a range
|
|
- do it twice so Black keys are drawn over White ones
|
|
"""
|
|
for key in range(firstKeyNum, lastKeyNum+1):
|
|
if keys_color[key % 12] == 'W':
|
|
self.createKeyByNumber(parent, key)
|
|
for key in range(firstKeyNum, lastKeyNum+1):
|
|
if keys_color[key % 12] == 'B':
|
|
self.createKeyByNumber(parent, key)
|
|
|
|
def createPiano(self, parent):
|
|
""" Draw keys defined by options
|
|
- add Piano 'box' above
|
|
"""
|
|
firstKeyNumber = keyNumberFromNote(self.options.firstNote)
|
|
lastKeyNumber = keyNumberFromNote(self.options.lastNote)
|
|
self.createKeyInRange(parent, firstKeyNumber, lastKeyNumber)
|
|
# Draw the Piano box above keys
|
|
rectBump = (self.white_key_width - self.black_key_width/2)
|
|
rectBump = self.svg.unittouu('1 mm')
|
|
rect_x1 = self.white_key_width * (whiteKeyCountInRange(0, firstKeyNumber)-1)- rectBump
|
|
rect_y1 = self.svg.unittouu('-3 mm')
|
|
rect_width = self.white_key_width * (whiteKeyCountInRange(firstKeyNumber, lastKeyNumber)) + rectBump*2
|
|
rect_height = self.svg.unittouu('4 mm')
|
|
rect_atts = {'x':str(rect_x1),
|
|
'y':str(rect_y1),
|
|
'width':str(rect_width),
|
|
'height':str(rect_height),
|
|
'ry':str(0),
|
|
'style':'fill:%s;stroke:none;fill-opacity:1' %(White) }
|
|
rect = etree.SubElement(parent, 'rect', rect_atts)
|
|
path_atts = {'style':'fill:%s;stroke:%s;stroke-width:%s;stroke-opacity:1' %(White, Black, self.svg.unittouu('0.25 mm')),
|
|
'd':'m %s,%s l 0,%s %s,0 0, %s' % (rect_x1, rect_y1, rect_height, rect_width, -rect_height) }
|
|
path = etree.SubElement(parent, 'path', path_atts)
|
|
|
|
def createMarkerAt(self, parent, x, y, radius, markerText):
|
|
" Draw a Marker at position x,y "
|
|
markerGroup = etree.SubElement(parent, 'g')
|
|
# should replace with svg:circle
|
|
ellipce_atts = {
|
|
inkex.addNS('cx','sodipodi'):str(x),
|
|
inkex.addNS('cy','sodipodi'):str(y),
|
|
inkex.addNS('rx','sodipodi'):str(radius),
|
|
inkex.addNS('ry','sodipodi'):str(radius),
|
|
inkex.addNS('type','sodipodi'):'arc',
|
|
'd':'m %s,%s a %s,%s 0 1 1 %s,0 %s,%s 0 1 1 %s,0 z' %(x+radius, y, x, y, -radius*2, x, y, radius*2),
|
|
'style':'fill:%s;stroke:%s;stroke-width:%s;stroke-opacity:1;fill-opacity:1' %(Marker_color, Black, self.svg.unittouu('0.125 mm'))}
|
|
ellipse = etree.SubElement(markerGroup, 'path', ellipce_atts)
|
|
# draw the text
|
|
textstyle = {'font-size': '3 px',
|
|
'font-family': 'arial',
|
|
'text-anchor': 'middle',
|
|
'text-align': 'center',
|
|
'fill': Black }
|
|
text_atts = {'style':str(inkex.Style(textstyle)),
|
|
'x': str(x),
|
|
'y': str(y + radius*0.5) }
|
|
text = etree.SubElement(markerGroup, 'text', text_atts)
|
|
text.text = str(markerText)
|
|
|
|
def createMarkerOnWhite(self, parent, whiteNumber, markerText):
|
|
" Position Marker on White key "
|
|
radius = self.white_key_width * self.marker_radius_factor
|
|
center_x = self.white_key_width * (whiteNumber + 0.5)
|
|
center_y = self.white_key_height * self.marker_y_offset_factor - radius
|
|
self.createMarkerAt(parent, center_x, center_y, radius, markerText)
|
|
|
|
def createMarkerOnBlack(self, parent, whiteNumber, markerText):
|
|
" Position Marker on Black key "
|
|
radius = self.white_key_width * self.marker_radius_factor
|
|
center_x = self.white_key_width * (whiteNumber + 1)
|
|
center_y = self.black_key_height * self.marker_y_offset_factor - radius
|
|
self.createMarkerAt(parent, center_x, center_y, radius, markerText)
|
|
|
|
def createMarkers(self, parent, keyNumberList, markerTextList):
|
|
current=0
|
|
for key in keyNumberList:
|
|
octave = math.floor(key/12)
|
|
if colorFromKey(key) == "W":
|
|
self.createMarkerOnWhite(parent, int(keys_numbers[notes[key%12]])+(octave)*7, markerTextList[current])
|
|
else:
|
|
self.createMarkerOnBlack(parent, int(keys_numbers[notes[key%12]])+(octave)*7, markerTextList[current])
|
|
current += 1;
|
|
|
|
def createMarkersFromIntervals(self, parent, intervals):
|
|
""" Check intervals.
|
|
Then gather keys which need markers
|
|
and the text for each one.
|
|
Make markers.
|
|
"""
|
|
# Check intervals are well defined and markers are legit.
|
|
intervalSumm = sum([int(i) for i in intervals])
|
|
if intervalSumm != 12:
|
|
inkex.debug("Warning! Scale must have 12 half-tones. But %d defined."%(intervalSumm))
|
|
|
|
firstKeyNum = keyNumberFromNote(self.options.firstNote)
|
|
lastKeyNum = keyNumberFromNote(self.options.lastNote)
|
|
|
|
markedKeys = ()
|
|
markerText = ()
|
|
if keyNumberFromNote(self.options.keynote) in range(firstKeyNum, lastKeyNum+1):
|
|
currentKey = keyNumberFromNote(self.options.keynote)
|
|
markedKeys = (currentKey,)
|
|
markerText = ('1',)
|
|
currentInterval = 0
|
|
for key in range(keyNumberFromNote(self.options.keynote), lastKeyNum+1):
|
|
if key - currentKey == int(intervals[currentInterval]):
|
|
markedKeys += (key,)
|
|
currentInterval += 1
|
|
markerText += (str(currentInterval+1),)
|
|
if currentInterval == len(intervals):
|
|
currentInterval = 0
|
|
currentKey = key
|
|
#
|
|
currentKey = keyNumberFromNote(self.options.keynote)
|
|
currentInterval = len(intervals)-1
|
|
for key in range(keyNumberFromNote(self.options.keynote), firstKeyNum-1, -1):
|
|
if currentKey - key == int(intervals[currentInterval]):
|
|
markedKeys += (key,)
|
|
markerText += (str(currentInterval+1),)
|
|
currentInterval -= 1
|
|
if currentInterval == -1:
|
|
currentInterval = len(intervals)-1
|
|
currentKey = key
|
|
# make the markers
|
|
self.createMarkers(parent, markedKeys, markerText)
|
|
|
|
def createHelpSheet(self, parent, title, intervals):
|
|
""" Draw big text Label and draw 12 different scales
|
|
"""
|
|
textstyle = {'font-size': '22px',
|
|
'font-family': 'arial',
|
|
'text-anchor': 'middle',
|
|
'text-align': 'center',
|
|
'fill': Black }
|
|
text_atts = {'style':str(inkex.Style(textstyle)),
|
|
'x': str( self.doc_width/2 ),
|
|
'y': str( self.black_key_height) }
|
|
text = etree.SubElement(parent, 'text', text_atts)
|
|
text.text = title
|
|
#
|
|
for i in range(0, 12):
|
|
# override the ui input value for each note in the scale
|
|
self.options.keynote = notes[i]
|
|
# calculate the piano position on the page
|
|
if keys_color[i] == "W":
|
|
t = 'translate(%s,%s)' % (self.doc_width/2,
|
|
self.doc_height - self.white_key_height*1.5
|
|
- (self.white_key_height + self.svg.unittouu('7 mm')) * int(keys_numbers[self.options.keynote]) )
|
|
else: # Black key
|
|
t = 'translate(%s,%s)' % (self.svg.unittouu('7 mm'),
|
|
self.doc_height- self.white_key_height*1.5
|
|
- (self.white_key_height+self.svg.unittouu('7 mm')) * int(keys_numbers[self.options.keynote]) - self.white_key_height*0.5 )
|
|
group = etree.SubElement(parent, 'g', { 'transform':t})
|
|
# Create a piano using that keynote in the Scale (defined in intervals)
|
|
self.createPiano(group)
|
|
self.createMarkersFromIntervals(group, intervals)
|
|
|
|
def effect(self):
|
|
self.calculate_size_and_positions()
|
|
parent = self.document.getroot()
|
|
if str(self.options.tab) == "scale":
|
|
t = 'translate(%s,%s)' % (self.svg.namedview.center[0], self.svg.namedview.center[1])
|
|
group = etree.SubElement(parent, 'g', { 'transform':t})
|
|
self.createPiano(group)
|
|
self.createMarkersFromIntervals(group, intervals[self.options.scale])
|
|
elif str(self.options.tab) == "helpSheet":
|
|
t = 'translate(%s,%s)' % (self.svg.unittouu('5 mm'), self.svg.unittouu('5 mm'))
|
|
group = etree.SubElement(parent, 'g', { 'transform':t})
|
|
scale_index = self.options.helpSheet
|
|
self.createHelpSheet(group, helpSheets[scale_index][0], helpSheets[scale_index][1])
|
|
else: # direct intervals
|
|
t = 'translate(%s,%s)' % (self.svg.namedview.center[0], self.svg.namedview.center[1])
|
|
group = etree.SubElement(parent, 'g', { 'transform':t})
|
|
self.createPiano(group)
|
|
self.createMarkersFromIntervals(group, self.options.intervals)
|
|
|
|
SVGPianoScale().run() |