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customElements.py
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'''
Electrical element symbols for schematic drawing.
Each element is a dictionary with key/values defining how it should be drawn.
Coordinates are all defined in element coordinates, where the element begins
at [0,0] and is drawn from left to right. The drawing engine will then rotate
and translate the element to its final position. A standard resistor is
1 drawing unit long, and with default lead extension will become 3 units long.
Possible dictionary keys:
name: A name string for the element. Currently only used for testing.
paths: A list of each path line in the element. For example, a capacitor
has two paths, one for each capacitor "plate". On 2-terminal
elements, the leads will be automatically extended away from the
first and last points of the first path, and don't need to
be included in the path.
base: Dictionary defining a base element. For example, the variable
resistor has a base of resistor, then adds an additional path.
shapes: A list of shape dictionaries.
'shape' key can be [ 'circle', 'poly', 'arc', 'arrow' ]
Other keys depend on the shape as follows.
circle:
'center': xy center coordinate
'radius': radius of circle
'fill' : [True, False] fill the circle
'fillcolor' : color for fill
poly:
'xy' : List of xy coordinates defining polygon
'closed': [True, False] Close the polygon
'fill' : [True, False] fill the polygon
'fillcolor' : color for fill
arc:
'center' : Center coordinate of arc
'width', 'height': width and height of arc
'theta1' : Starting angle (degrees)
'theta2' : Ending angle (degrees)
'angle' : Rotation angle of entire arc
'arrow' : ['cw', 'ccw'] Add an arrowhead, clockwise or counterclockwise
arrow:
'start' : start of arrow
'end' : end of arrow
'headwidth', 'headlength': width and length of arrowhead
theta: Default angle (in degrees) for the element. Overrides the current
drawing angle.
anchors: A dictionary defining named positions within the element. For
example, the NFET element has a 'source', 'gate', and 'drain'
anchor. Each anchor will become an attribute of the element class
which can then be used for connecting other elements.
extend: [True, False] Extend the leads to fill the full element length.
move_cur: [True, False] Move the drawing cursor location after drawing.
color: A matplotlib-compatible color for the element. Examples include
'red', 'blue', '#34ac92'
drop: Final location to leave drawing cursor.
lblloc: ['top', 'bot', 'lft', 'rgt'] default location for text label.
Defaults to 'top'.
lblofst: Default distance between element and text label.
labels: List of (label, pos, align) tuples defining text labels to always draw
in the element. Align is (horiz, vert) tuple of
(['center', 'left', right'], ['center', 'bottom', 'top'])
labels: list of label dictionaries. Each label has keys:
'label' : string label
'pos' : xy position
'align' : (['center', 'left', right'], ['center', 'bottom', 'top']) alignment
'size' : font size
'''
import numpy as _np
import re
_gap = [_np.nan, _np.nan] # To leave a break in the plot
# Resistor is defined as 1 matplotlib plot unit long.
# When default leads are added, the total length will be three units.
_rh = 0.25 # Resistor height
_rw = 1.0 / 6 # Full (inner) length of resistor is 1.0 data unit
# Drawing Functions
def _cycloid(loops=4, ofst=(0, 0), a=.06, b=.19, norm=True, vertical=False, flip=False):
''' Generate a prolate cycloid (inductor spiral) that
will always start and end at y=0.
loops = Number of loops
a, b = parameters. b>a for prolate (loopy) cycloid
norm = Normalize the length to 1 [True/False]
vertical, flip = Control the orientation of cycloid
'''
yint = _np.arccos(a/b) # y-intercept
t = _np.linspace(yint, 2*(loops+1)*_np.pi-yint, num=loops*50)
x = a*t - b*_np.sin(t)
y = a - b*_np.cos(t)
x = x - x[0] # Shift to start at 0,0
if norm:
x = x / (x[-1]-x[0]) # Normalize length to 1
if flip:
y = -y
y = y * (max(y)-min(y))/(_rh) # Normalize to resistor width
if vertical:
x, y = y, x
x = x + ofst[0]
y = y + ofst[1]
path = _np.transpose(_np.vstack((x, y)))
return path
# Basic elements
RES = {
'name': 'RES',
'paths': [[[0, 0], [0.5*_rw, _rh], [1.5*_rw, -_rh], [2.5*_rw, _rh],
[3.5*_rw, -_rh], [4.5*_rw, _rh], [5.5*_rw, -_rh], [6*_rw, 0]]],
}
RES_VAR = {
'name': 'RES_VAR',
'base': RES,
'shapes': [{'shape': 'arrow',
'start': [1.5*_rw, -_rh*2],
'end': [4.5*_rw, _rw*3.5],
'headwidth': .12,
'headlength': .2}],
'paths': [[[1.5*_rw, -_rh*2], [4.5*_rw, _rw*3.5]]]
}
RBOX = {
'name': 'RBOX',
'paths': [[[0, 0], [0, _rh], [_rw*6, _rh], [_rw*6, -_rh],
[0, -_rh], [0, 0], _gap, [_rw*6, 0]]]
}
POT = {
'name': 'POT',
'base': RES,
'shapes': [{'shape': 'arrow',
'start': [_rw*3, _rw*5],
'end': [_rw*3, _rw*1.5],
'headwidth': .15,
'headlength': .25}],
'lblloc': 'bot',
'anchors': {'tap': [_rw*3, _rw*1.5]}
}
_cap_gap = 0.18
CAP = { # Straight capacitor
'name': 'CAP',
'paths': [[[0, 0], _gap, [0, _rh], [0, -_rh], _gap,
[_cap_gap, _rh], [_cap_gap, -_rh], _gap,
[_cap_gap, 0]]],
'anchors': {'center': [_rh, 0]}
}
CAP_P = { # Polarized
'name': 'CAP_P',
'base': CAP,
'labels': [{'label': '+',
'pos': [-_cap_gap*1.2, _cap_gap]}]
}
CAP2 = { # Curved capacitor
'name': 'CAP2',
'paths': [[[0, 0], _gap, [0, _rh], [0, -_rh], _gap, [_cap_gap, 0]]],
'shapes': [{'shape': 'arc',
'center': [(_cap_gap*1.5), 0],
'theta1': 105,
'theta2': -105,
'width': _cap_gap*1.5,
'height': _rh*2.5}],
'anchors': {'center': [_rh, 0]}
}
CAP2_P = { # Polarized
'name': 'CAP2_P',
'base': CAP2,
'labels': [{'label': '+', 'pos': [-_cap_gap*1.2, _cap_gap]}]
}
_cap_gap = 0.2
XTAL = { # Crystal
'name': 'XTAL',
'paths': [[[0, 0], _gap, [0, _rh], [0, -_rh], _gap,
[_cap_gap/2, _rh], [_cap_gap/2, -_rh], [_cap_gap*1.5, -_rh],
[_cap_gap*1.5, _rh], [_cap_gap/2, _rh], _gap,
[_cap_gap*2, _rh], [_cap_gap*2, -_rh], _gap, [_cap_gap*2, 0]],
],
}
DIODE = {
'name': 'DIODE',
'paths': [[[0, 0], _gap, [_rh*1.4, _rh], [_rh*1.4, -_rh], _gap, [_rh*1.4, 0]]],
'anchors': {'center': [_rh, 0]},
'shapes': [{'shape': 'poly',
'xy': _np.array([[0, _rh], [_rh*1.4, 0], [0, -_rh]]),
'fill': False}]
}
DIODE_F = {
'name': 'DIODE_F',
'base': DIODE,
'shapes': [{'shape': 'poly',
'xy': _np.array([[0, _rh], [_rh*1.4, 0], [0, -_rh]]),
'fill': True}]
}
_sd = .1
SCHOTTKY = { # Schottky diode
'name': 'SCHOTTKY',
'base': DIODE,
'paths': [[[_rh*1.4, _rh], [_rh*1.4-_sd, _rh], [_rh*1.4-_sd, _rh-_sd]],
[[_rh*1.4, -_rh], [_rh*1.4+_sd, -_rh], [_rh*1.4+_sd, -_rh+_sd]]]
}
SCHOTTKY_F = {
'name': 'SCHOTTKY_F',
'base': DIODE_F,
'paths': [[[_rh*1.4, _rh], [_rh*1.4-_sd, _rh], [_rh*1.4-_sd, _rh-_sd]],
[[_rh*1.4, -_rh], [_rh*1.4+_sd, -_rh], [_rh*1.4+_sd, -_rh+_sd]]]
}
ZENER = { # Zener diode
'name': 'ZENER',
'base': DIODE,
'paths': [[[_rh*1.4, _rh], [_rh*1.4+_sd, _rh+_sd]],
[[_rh*1.4, -_rh], [_rh*1.4-_sd, -_rh-_sd]]]
}
ZENER_F = {
'name': 'ZENER_F',
'base': DIODE_F,
'paths': [[[_rh*1.4, _rh], [_rh*1.4+_sd, _rh+_sd]],
[[_rh*1.4, -_rh], [_rh*1.4-_sd, -_rh-_sd]]]
}
LED = {
'name': 'LED',
'base': DIODE,
'paths': [[[_rh, _rh*1.5], [_rh*2, _rh*3.25]]], # Duplicate arrow with a path to work around matplotlib autoscale bug.
'shapes': [{'shape': 'arrow',
'start': [_rh, _rh*1.5],
'end': [_rh*2, _rh*3.25],
'headwidth': .12,
'headlength': .2},
{'shape': 'arrow',
'start': [_rh*.1, _rh*1.5],
'end': [_rh*1.1, _rh*3.25],
'headwidth': .12,
'headlength': .2}]
}
# LED with squiggle light
x = _np.linspace(-1, 1)
y = -x*(x-.7)*(x+.7)/2 + _rh*2.5
x = _np.linspace(_rh*.75, _rh*1.25)
theta = 20
c = _np.cos(_np.radians(theta))
s = _np.sin(_np.radians(theta))
m = _np.array([[c, s], [-s, c]])
p = _np.transpose(_np.vstack((x, y)))
p = _np.dot(p, m)
p2 = _np.transpose(_np.vstack((x-.2, y)))
p2 = _np.dot(p2, m)
LED2 = {
'name': 'LED2',
'base': DIODE,
'paths': [p, p2],
'shapes': [{'shape': 'arrow',
'start': p[1],
'end': p[0],
'headwidth': .07,
'headlength': .08
},
{'shape': 'arrow',
'start': p2[1],
'end': p2[0],
'headwidth': .07,
'headlength': .08
}]
}
# Photodiode with squiggle light
x = _np.linspace(-1, 1)
y = -x*(x-.7)*(x+.7)/2 + _rh*2.5
x = _np.linspace(_rh*.75, _rh*1.25)
theta = 20
c = _np.cos(_np.radians(theta))
s = _np.sin(_np.radians(theta))
m = _np.array([[c, s], [-s, c]])
p = _np.transpose(_np.vstack((x, y)))
p = _np.dot(p, m)
p2 = _np.transpose(_np.vstack((x-.2, y)))
p2 = _np.dot(p2, m)
PHOTODIODE = {
'name': 'PHOTODIODE',
'base': DIODE,
'paths': [p, p2],
'shapes': [{'shape': 'arrow',
'start': p[-2],
'end': p[-1],
'headwidth': .07,
'headlength': .08
},
{'shape': 'arrow',
'start': p2[-2],
'end': p2[-1],
'headwidth': .07,
'headlength': .08
}]
}
_mr = 0.2
MEMRISTOR = {
'name': 'MEMRISTOR',
'paths': [[[0, _mr*1.25], [_mr*5, _mr*1.25], [_mr*5, _mr*-1.25], [0, _mr*-1.25], [0, _mr*1.25]],
[[0, 0], [_mr, 0], [_mr, -_mr*.75], [_mr*2, -_mr*.75], [_mr*2, _mr*.75], [_mr*3, _mr*.75], [_mr*3, -_mr*.75], [_mr*4, -_mr*.75], [_mr*4, 0], [_mr*5, 0]],
],
'shapes': [{'shape': 'poly',
'xy': [[0, _mr*1.25], [0, -_mr*1.25], [_mr/2, -_mr*1.25], [_mr/2, _mr*1.25]],
'fill': True
}]
}
_mrv = .25
MEMRISTOR2 = {
'name': 'MEMRISTOR2',
'paths': [[[0, 0], [0, _mrv], [_mr, _mrv], [_mr, -_mrv], [_mr*2, -_mrv], [_mr*2, _mrv],
[_mr*3, _mrv], [_mr*3, -_mrv], [_mr*4, -_mrv], [_mr*4, _mrv],
[_mr*5, _mrv], [_mr*5, -_mrv], [_mr*6, -_mrv], [_mr*6, 0],
[_mr*7, 0]],
],
}
JJ = { # Josphson Junction
'name': 'JJ',
'paths': [[[0, 0], _gap, [-_rh, _rh], [_rh, -_rh], _gap, [_rh, _rh], [-_rh, -_rh], _gap, [0, 0]]],
}
CABLE = { # Cable
'name': 'cable',
'paths': [[[0, 0], [0, 0], _gap, [2.5, 0], [2.5, 0]]],
'theta': 90.,
'shapes': [{'shape': 'circle',
'center': [0.5, 0],
'radius': 0.5},
{'shape': 'arc',
'center': [2, 0],
'width': 1,
'height': 1,
'theta1': 270,
'theta2': 90},
{'shape': 'poly',
'xy': [[.5,.5],[2,.5]]},
{'shape': 'poly',
'xy': [[0,0],[0.5,0]]},
{'shape': 'poly',
'xy': [[.5,-.5],[2,-.5]]}]
}
# AMP
_oa_back = 2.5
_oa_xlen = _oa_back * _np.sqrt(3)/2
_oa_lblx = _oa_xlen/8
_oa_pluslen = .2
AMP = {
'name': 'AMP',
'paths': [[[0, 0], [0, _oa_back/2], [_oa_xlen, 0], [0, -_oa_back/2], [0, 0],
_gap, [_oa_xlen, 0]], # Triangle
],
'extend': False,
}
# Lumped Element Kinetic Inductance Detector (LEKID)
LEKID = {
'name': 'LEKID',
'paths': [[[0, 0], [0, _rh], [_rw*6, _rh], [_rw*6, -_rh],
[0, -_rh], [0, 0], _gap, [_rw*6, 0]]],
'shapes': [{'shape': 'arc',
'center': [0, -_rh],
'width': 1,
'height': 1,
'theta1': 0,
'theta2': 90},
{'shape': 'arc',
'center': [1.0, -_rh],
'width': 1,
'height': 1,
'theta1': 90,
'theta2': 180}]
}
# Connection dots, lines
_dotr = .075
DOT_OPEN = {
'name': 'DOT_OPEN',
'paths': [[[0, 0]]],
'shapes': [{'shape': 'circle',
'center': [0, 0],
'radius': _dotr,
'fill': True,
'fillcolor': 'white'}],
'theta': 0,
'extend': False,
}
DOT = {
'name': 'DOT',
'paths': [[[0, 0]]],
'shapes': [{'shape': 'circle',
'center': [0, 0],
'radius':_dotr,
'fill': True,
'fillcolor': 'black'}],
'theta': 0,
'extend': False,
}
ELLIPSIS = {
'name': 'ELLIPSIS',
'shapes': [{'shape': 'circle',
'center': [.5, 0],
'radius': _dotr/2,
'fill': True,
'fillcolor': 'black'},
{'shape': 'circle',
'center': [1, 0],
'radius': _dotr/2,
'fill': True,
'fillcolor': 'black'},
{'shape': 'circle',
'center': [1.5, 0],
'radius': _dotr/2,
'fill': True,
'fillcolor': 'black'}],
'extend': False,
'drop': [2, 0]
}
LINE = {'name': 'LINE', 'paths': [_np.array([[0, 0]])]}
# Label centered over a gap
GAP_LABEL = {
'name': 'LABEL',
'paths': [[[0, 0], _gap, [1, 0]]],
'lblloc': 'center',
'lblofst': 0,
'color': 'white'
}
GAP = {
'base': GAP_LABEL
}
# Label at the specific location
LABEL = {
'name': 'LABEL',
'lblloc': 'center',
'lblofst': 0,
'move_cur': False
}
# Grounds
_gnd_gap = 0.12
_gnd_lead = 0.4
GND = {
'name': 'GND',
'paths': [[[0, 0], [0, -_gnd_lead], [-_rh, -_gnd_lead], [_rh, -_gnd_lead],
_gap, [-_rh*.7, -_gnd_gap-_gnd_lead], [_rh*.7, -_gnd_gap-_gnd_lead],
_gap, [-_rh*.2, -_gnd_gap*2-_gnd_lead],
[_rh*.2, -_gnd_gap*2-_gnd_lead]]],
'move_cur': False,
'extend': False,
'theta': 0
}
GND_SIG = {
'name': 'GND_SIG',
'paths': [[[0, 0], [0, -_gnd_lead], [-_rh, -_gnd_lead], [0, -_gnd_lead*2],
[_rh, -_gnd_lead], [0, -_gnd_lead]]],
'move_cur': False,
'extend': False,
'theta': 0
}
_chgnd_dx = _rh*.75
_chgnd_dy = _rh
GND_CHASSIS = {
'name': 'GND_CHASSIS',
'paths': [[[0, 0], [0, -_gnd_lead], [-_chgnd_dx, -_gnd_lead-_chgnd_dy]],
[[0, -_gnd_lead], [-_chgnd_dx, -_gnd_lead], [-_chgnd_dx*2, -_gnd_lead-_chgnd_dy]],
[[0, -_gnd_lead], [_chgnd_dx, -_gnd_lead], [0, -_gnd_lead-_chgnd_dy]]],
'move_cur': False,
'extend': False,
'theta': 0
}
_chgnd_dx = _rh*.75
_chgnd_dy = _rh
VSS = {
'name': 'VSS',
'paths': [[[0, 0], [0, -_gnd_lead]],
[[0, -_gnd_lead], [-_chgnd_dx, -_gnd_lead]],
[[0, -_gnd_lead], [_chgnd_dx, -_gnd_lead]]],
'move_cur': False,
'extend': False,
'theta': 0
}
_chgnd_dx = _rh*.75
_chgnd_dy = _rh
VDD = {
'name': 'VDD',
'paths': [[[0, 0], [0, _gnd_lead]],
[[0, _gnd_lead], [-_chgnd_dx, _gnd_lead]],
[[0, _gnd_lead], [_chgnd_dx, _gnd_lead]]],
'move_cur': False,
'extend': False,
'theta': 0
}
# Opamp
_oa_back = 2.5
_oa_xlen = _oa_back * _np.sqrt(3)/2
_oa_lblx = _oa_xlen/8
_oa_pluslen = .2
OPAMP_NOSIGN = {
'name': 'OPAMP_NOSIGN',
'paths': [[[0, 0], [0, _oa_back/2], [_oa_xlen, 0], [0, -_oa_back/2], [0, 0],
_gap, [_oa_xlen, 0]], # Triangle
],
'anchors': {'center': [_oa_xlen/2, 0],
'in1': [0, _oa_back/4],
'in2': [0, -_oa_back/4],
'out': [_oa_xlen, 0]},
'extend': False,
}
OPAMP = {
'name': 'OPAMP',
'paths': [[[0, 0], [0, _oa_back/2], [_oa_xlen, 0], [0, -_oa_back/2], [0, 0], _gap, [_oa_xlen, 0]], # Triangle
[[_oa_lblx-_oa_pluslen/2, _oa_back/4], [_oa_lblx+_oa_pluslen/2, _oa_back/4]], # '-' sign
[[_oa_lblx-_oa_pluslen/2, -_oa_back/4], [_oa_lblx+_oa_pluslen/2, -_oa_back/4]], # '+' sign
[[_oa_lblx, -_oa_back/4-_oa_pluslen/2], [_oa_lblx, -_oa_back/4+_oa_pluslen/2]] # '' sign
],
'anchors': {'center': [_oa_xlen/2, 0],
'in1': [0, _oa_back/4],
'in2': [0, -_oa_back/4],
'out': [_oa_xlen, 0]},
'extend': False,
}
# FETs
_fetw = _rw*4
_feth = _rw*5
_fetl = _feth/2
_fet_gap = _rw*1.5
_fetr = _rw*.7 # Radius of "not" bubble
NFET = {
'name': 'NFET',
'paths': [[[0, 0], [0, -_fetl], [_fetw, -_fetl], [_fetw, -_fetl-_fetw], [0, -_fetl-_fetw], [0, -2*_fetl-_fetw]],
[[_fetw+_fet_gap, -_fetl], [_fetw+_fet_gap, -_fetl-_fetw]],
[[_fetw+_fet_gap, -_fetl-_fetw/2], [_fetw+_fet_gap+_fetl+_fetr, -_fetl-_fetw/2]]],
'extend': False,
'drop': _np.array([0, -2*_fetl-_fetw]),
'lblloc': 'lft',
'anchors': {'source': [0, -2*_fetl-_fetw],
'drain': [0, 0],
'gate': [_fetw+_fet_gap+_fetl+_fetr, -_fetl-_fetw/2]}
}
NFET4 = {
'name': 'NFET4',
'paths': [[[0, 0], [0, -_fetl], [_fetw, -_fetl], [_fetw, -_fetl-_fetw], [0, -_fetl-_fetw], [0, -2*_fetl-_fetw]],
[[_fetw+_fet_gap, -_fetl], [_fetw+_fet_gap, -_fetl-_fetw]],
[[_fetw+_fet_gap, -_fetl-_fetw/2], [_fetw+_fet_gap+_fetl+_fetr, -_fetl-_fetw/2]]],
'shapes': [{'shape': 'arrow',
'start': [0, -_fetl-_fetw/2],
'end': [_fetw, -_fetl-_fetw/2],
'headwidth': 0.2
}],
'extend': False,
'drop': _np.array([0, -2*_fetl-_fetw]),
'lblloc': 'lft',
'anchors': {'source': [0, -2*_fetl-_fetw],
'drain': [0, 0],
'gate': [_fetw+_fet_gap+_fetl+_fetr, -_fetl-_fetw/2],
'bulk': [0, -_fetl-_fetw/2]}
}
PFET = {
'name': 'PFET',
'paths': [[[0, 0], [0, -_fetl], [_fetw, -_fetl], [_fetw, -_fetl-_fetw], [0, -_fetl-_fetw], [0, -2*_fetl-_fetw]],
[[_fetw+_fet_gap, -_fetl], [_fetw+_fet_gap, -_fetl-_fetw]],
[[_fetw+_fet_gap+_fetr*2, -_fetl-_fetw/2], [_fetw+_fet_gap+_fetl+_fetr, -_fetl-_fetw/2]]],
'shapes': [{'shape': 'circle',
'center': [_fetw+_fet_gap+_fetr, -_fetl-_fetw/2],
'radius': _fetr}],
'extend': False,
'drop': _np.array([0, -2*_fetl-_fetw]),
'lblloc': 'lft',
'anchors': {'source': [0, 0],
'drain': [0, -2*_fetl-_fetw],
'gate': [_fetw+_fet_gap+_fetl+_fetr, -_fetl-_fetw/2]}
}
PFET4 = {
'name': 'PFET4',
'paths': [[[0, 0], [0, -_fetl], [_fetw, -_fetl], [_fetw, -_fetl-_fetw], [0, -_fetl-_fetw], [0, -2*_fetl-_fetw]],
[[_fetw+_fet_gap, -_fetl], [_fetw+_fet_gap, -_fetl-_fetw]],
[[_fetw+_fet_gap, -_fetl-_fetw/2], [_fetw+_fet_gap+_fetl+_fetr, -_fetl-_fetw/2]]],
'shapes': [{'shape': 'arrow',
'start': [_fetw, -_fetl-_fetw/2],
'end': [0, -_fetl-_fetw/2],
'headwidth': 0.2
}],
'extend': False,
'drop': _np.array([0, -2*_fetl-_fetw]),
'lblloc': 'lft',
'anchors': {'source': [0, 0],
'drain': [0, -2*_fetl-_fetw],
'gate': [_fetw+_fet_gap+_fetl+_fetr, -_fetl-_fetw/2],
'bulk': [0, -_fetl-_fetw/2]}
}
# BJT transistors
_bjt_r = _rw*3.3 # Radius of BJT circle
_bjt_v = _bjt_r*2/3 # x coord of vertical line
_bjt_v_len = _bjt_r*4/3 # height of vertical line
_bjt_a = _bjt_v_len/4 # Intercept of emitter/collector lines
_bjt_emx = _bjt_v + _bjt_r*.7 # x-coord of emitter exiting circle
_bjt_emy = _bjt_v_len*.7 # y-coord of emitter exiting circle
BJT = {
'name': 'BJT',
'paths': [[[0, 0], [_bjt_v, 0]],
[[_bjt_v, _bjt_v_len/2], [_bjt_v, -_bjt_v_len/2]],
[[_bjt_v, _bjt_a], [_bjt_emx, _bjt_emy], [_bjt_emx, _bjt_emy+_bjt_a]],
[[_bjt_v, -_bjt_a], [_bjt_emx, -_bjt_emy], [_bjt_emx, -_bjt_emy-_bjt_a]]],
'extend': False,
'drop': _np.array([_bjt_emx, _bjt_emy+_bjt_a]),
'lblloc': 'rgt',
'anchors': {'base': [0, 0],
'collector': [_bjt_emx, _bjt_emy+_bjt_a],
'emitter': [_bjt_emx, -_bjt_emy-_bjt_a]}
}
BJT_NPN = {
'name': 'BJT_NPN',
'base': BJT,
'shapes': [{'shape': 'arrow',
'start': [_bjt_v, -_bjt_a],
'end': [_bjt_emx, -_bjt_emy],
'headwidth': 0.2
}]
}
BJT_PNP = {
'name': 'BJT_PNP',
'base': BJT,
'shapes': [{'shape': 'arrow',
'end': [_bjt_v, _bjt_a],
'start': [_bjt_emx, _bjt_emy],
'headwidth': 0.2
}],
'anchors': {'base': [0, 0],
'emitter': [_bjt_emx, _bjt_emy+_bjt_a],
'collector': [_bjt_emx, -_bjt_emy-_bjt_a]}
}
BJT_NPN_C = {
'name': 'BJT_NPN_C',
'base': BJT_NPN,
'shapes': [{'shape': 'circle',
'center': [_bjt_r, 0],
'radius': _bjt_r}]
}
BJT_PNP_C = {
'name': 'BJT_PNP_C',
'base': BJT_PNP,
'shapes': [{'shape': 'circle',
'center': [_bjt_r, 0],
'radius': _bjt_r}]
}
# BJT's with two collectors
_bjt_2c_dy = -.25
BJT_PNP_2C = {
'name': 'BJT_PNP_2C',
'base': BJT_PNP,
'paths': [[[_bjt_v, -_bjt_a-_bjt_2c_dy], [_bjt_emx, -_bjt_emy-_bjt_2c_dy]]],
'anchors': {'C2': [_bjt_emx, -_bjt_emy-_bjt_2c_dy]}
}
# Inductor without spiraling
_ind_w = .25
_ind_shape_list = []
for _i in range(4):
_ind_shape_list.append({'shape': 'arc',
'center': [(_i*2+1)*_ind_w/2, 0],
'theta1': 0,
'theta2': 180,
'width': _ind_w,
'height': _ind_w})
INDUCTOR = {
'name': 'INDUCTOR',
'paths': [[[0, 0], _gap, [1, 0]]],
'shapes': _ind_shape_list}
INDUCTOR2 = {
'name': 'INDUCTOR2',
'paths': [_cycloid(loops=4)]
}
# Independent sources
SOURCE = {
'name': 'SOURCE',
'paths': [[[0, 0], [0, 0], _gap, [1, 0], [1, 0]]],
'theta': 90.,
'shapes': [{'shape': 'circle',
'center': [0.5, 0],
'radius': 0.5}],
}
_plus_len = .2
SOURCE_V = {
'name': 'SOURCE_V',
'base': SOURCE,
'paths': [[[.25, -_plus_len/2], [.25, _plus_len/2]], # '-' sign
[[.75-_plus_len/2, 0], [.75+_plus_len/2, 0]], # '+' sign
[[.75, -_plus_len/2], [.75, _plus_len/2]], # '+' sign
]
}
SOURCE_I = {
'name': 'SOURCE_I',
'base': SOURCE,
'shapes': [{'shape': 'arrow',
'start': [.75, 0],
'end': [.25, 0]}]
}
_sin_y = _np.linspace(.25, .75, num=25) - 0.5
_sin_x = .2 * _np.sin((_sin_y-.25)*_np.pi*2/.5) + 0.5
_sin_path = _np.transpose(_np.vstack((_sin_x, _sin_y)))
SOURCE_SIN = {
'name': 'SOURCE_SIN',
'base': SOURCE,
'paths': [_sin_path]
}
#Controlled sources
SOURCE_CONT = {
'name': 'SOURCE_CONT',
'paths': [[[0, 0], [.5, .5], [1, 0]],
[[0, 0], [.5, -.5], [1, 0]]],
'theta': 90.,
}
SOURCE_CONT_V = {
'name': 'SOURCE_CONT_V',
'base': SOURCE_CONT,
'paths': [[[.25, -_plus_len/2], [.25, _plus_len/2]], # '-' sign
[[.75-_plus_len/2, 0], [.75+_plus_len/2, 0]], # '+' sign
[[.75, -_plus_len/2], [.75, _plus_len/2]], # '+' sign
]
}
SOURCE_CONT_I = {
'name': 'SOURCE_CONT_I',
'base': SOURCE_CONT,
'shapes': [{'shape': 'arrow',
'start': [.75, 0],
'end': [.25, 0]}]
}
# Batteries
_batw = _rh*.75
_bat1 = _rh*1.5
_bat2 = _rh*.75
BAT_CELL = {
'name': 'BAT_CELL',
'paths': [[[0, _bat1], [0, -_bat1]],
[[_batw, _bat2], [_batw, -_bat2]],
[[0, 0], _gap, [_batw, 0]]
]
}
BATTERY = {
'name': 'BATTERY',
'paths': [[[0, _bat1], [0,-_bat1]],
[[_batw, _bat2], [_batw, -_bat2]],
[[_batw*2, _bat1], [_batw*2, -_bat1]],
[[_batw*3, _bat2], [_batw*3, -_bat2]],
[[0, 0], _gap, [_batw*3, 0]]
]
}
# Meters
METER_V = {
'name': 'METER_V',
'base': SOURCE,
'labels': [{'label': 'V', 'pos': [.5, 0]}]
}
METER_I = {
'name': 'METER_I',
'base': SOURCE,
'labels': [{'label': 'I', 'pos': [.5, 0]}]
}
METER_OHM = {
'name': 'METER_OHM',
'base': SOURCE,
'labels': [{'label': r'$\Omega$', 'pos': [.5, 0]}]
}
# Arrows for labeling current
ARROWLINE = {
'name': 'ARROWLINE',
'paths': [[[0, 0], [1, 0]]],
'shapes': [{'shape': 'arrow',
'start': [0, 0],
'end': [0.55, 0],
'headwidth': .2,
'headlength': .3}],
'lblofst': .2,
}
ARROW_I = {
'name': 'ARROW_I',
'shapes': [{'shape': 'arrow',
'start': [0, 0],
'end': [2, 0],
'headwidth': .2,
'headlength': .3}],
'anchors': {'center': [1, 0]},
'lblofst': .2,
'move_cur': False
}
# Switches
_sw_dot_r = .12
SWITCH_SPST = {
'name': 'SWITCH_SPST',
'paths': [[[0, 0], _gap, [_sw_dot_r*2, .1], [.8, .45], _gap, [1, 0]]],
'shapes': [{'shape': 'circle',
'center': [_sw_dot_r, 0],
'radius': _sw_dot_r},
{'shape': 'circle',
'center': [1-_sw_dot_r, 0],
'radius': _sw_dot_r}]
}
SWITCH_SPST_OPEN = {
'name': 'SWITCH_SPST_OPEN',
'base': SWITCH_SPST,
'shapes': [{'shape': 'arc',
'center': [.4, .1],
'width': .5,
'height': .75,
'theta1': -10,
'theta2': 70,
'arrow': 'ccw'}]
}
SWITCH_SPST_CLOSE = {
'name': 'SWITCH_SPST_CLOSE',
'base': SWITCH_SPST,
'shapes': [{'shape': 'arc',
'center': [.4, .25],
'width': .5,
'height': .75,
'theta1': -10,
'theta2': 70,
'arrow': 'cw'}]
}
SWITCH_SPDT = {
'name': 'SWITCH_SPDT',
'base': SWITCH_SPST,
'shapes': [{'shape': 'circle',
'center': [1-_sw_dot_r, .7],
'radius': _sw_dot_r}],
'anchors': {'a': [0, 0],
'b': [1, 0],
'c': [1, .7]},
'extend': False
}
SWITCH_SPDT_OPEN = {
'name': 'SWITCH_SPDT_OPEN',
'base': SWITCH_SPST_OPEN,
'shapes': [{'shape': 'circle',
'center': [1-_sw_dot_r, .7],
'radius': _sw_dot_r}],
'extend': False
}
SWITCH_SPDT_CLOSE = {
'name': 'SWITCH_SPDT_CLOSE',
'base': SWITCH_SPST_CLOSE,
'shapes': [{'shape': 'circle',
'center': [1-_sw_dot_r, .7],
'radius': _sw_dot_r}],
'extend': False
}
SWITCH_SPDT2 = {
'name': 'SWITCH_SPDT2',
'paths': [[[0, 0], _gap, [_sw_dot_r*2, .1], [.7, .25], _gap, [1, .4]]],
'shapes': [{'shape': 'circle',
'center': [_sw_dot_r, 0],
'radius': _sw_dot_r},
{'shape': 'circle',
'center': [1-_sw_dot_r, -.4],
'radius': _sw_dot_r},
{'shape': 'circle',
'center': [1-_sw_dot_r, .4],
'radius': _sw_dot_r}],
'anchors': {'a': [0, 0],
'b': [1, .4],
'c': [1, -.4]},
'extend': False
}
SWITCH_SPDT2_OPEN = {
'name': 'SWITCH_SPDT2_OPEN',
'base': SWITCH_SPDT2,
'shapes': [{'shape': 'arc',
'center': [.35, 0],
'width': .5,
'height': .75,
'theta1': -10,
'theta2': 70,
'arrow': 'ccw'}]
}
SWITCH_SPDT2_CLOSE = {
'name': 'SWITCH_SPDT2_CLOSE',
'base': SWITCH_SPDT2,
'shapes': [{'shape': 'arc',
'center': [.3, .1],
'width': .5,
'height': .75,
'theta1': -10,
'theta2': 70,
'arrow': 'cw'}]
}
# Pushbuttons
BUTTON = {
'name': 'BUTTON',
'paths': [[[0, 0], _gap, [_sw_dot_r, .3], [1-_sw_dot_r, .3],
_gap, [.5, .3], [.5, .5], _gap, [1, 0]]],
'shapes': [{'shape': 'circle',
'center': [_sw_dot_r, 0],
'radius': _sw_dot_r},
{'shape': 'circle',
'center': [1-_sw_dot_r, 0],
'radius': _sw_dot_r}]
}
BUTTON_NC = {
'name': 'BUTTON_NC',
'paths': [[[0, 0], _gap, [_sw_dot_r, -_sw_dot_r-.05],
[1-_sw_dot_r, -_sw_dot_r-.05], _gap, [.5, -_sw_dot_r-.05],
[.5, _sw_dot_r+.15], _gap, [1, 0]]],
'shapes': [{'shape': 'circle',
'center': [_sw_dot_r, 0],
'radius': _sw_dot_r},
{'shape': 'circle',
'center': [1-_sw_dot_r, 0],
'radius': _sw_dot_r}]
}
# Speakers, bulbs, etc.
_sph = .5
SPEAKER = {
'name': 'SPEAKER',
'paths': [[[0, 0], [_rh, 0]],
[[0, -_sph], [_rh, -_sph]]],