Merge branch 'dev'

readme.md

@@ -14,11 +14,14 @@ It is based on [GraphViz](https://www.graphviz.org/) and designed as an "extensi
   * Easy version control
   * GraphViz-like syntax
 * Understands and uses color abbreviations as per [IEC 60757](https://en.wikipedia.org/wiki/Electronic_color_code#Color_band_system) (black=BK, red=RD, ...)
+  * Optionally outputs colors as abbreviation (e.g. 'YE'), full name (e.g. 'yellow') or hex value (e.g. '#ffff00'), with choice of UPPER or lower case
 * Auto-generates standard wire color schemes and allows custom ones if needed
   * [DIN 47100](https://en.wikipedia.org/wiki/DIN_47100) (WT/BN/GN/YE/GY/PK/BU/RD/BK/VT/...)
   * [IEC 62](https://en.wikipedia.org/wiki/Electronic_color_code#Color_band_system)   (BN/RD/OR/YE/GN/BU/VT/GY/WT/BK/...)
+* Understands wire gauge in mm² or AWG
+  * Optionally auto-calculates and displays AWG equivalent when specifying mm²
 * Allows more than one connector per side, as well as loopbacks
-* Will include images of known connectors, together with their pinouts
+* Allows for easy-autorouting for 1-to-1 wiring
 
 ## Example
 

src/example2.py

@@ -19,10 +19,10 @@ Harness.add(Node('X2', type='Molex KK 254', gender='female', pinout=PINOUT_I2C,
 Harness.add(Node('X3', type='Molex KK 254', gender='female', pinout=PINOUT_I2C, ports_left=True))
 Harness.add(Node('X4', type='Molex KK 254', gender='female', pinout=('GND','+12V')+PINOUT_SPI_DATAONLY, ports_left=True))
 Harness.add(Node('X5', type='Molex Micro-Fit', gender='male', pinout=('GND','+12V'), ports_right=True))
-Harness.add(Cable('W1', mm2=0.14, length=0.2, colors=COLORS_I2C))
+Harness.add(Cable('W1', mm2=0.14, show_equiv=True, length=0.2, colors=COLORS_I2C))
-Harness.add(Cable('W2', mm2=0.14, length=0.2, colors=COLORS_I2C))
+Harness.add(Cable('W2', mm2=0.14, show_equiv=True, length=0.2, colors=COLORS_I2C))
-Harness.add(Cable('W3', mm2=0.14, length=0.2, colors=('BK','BU','OG','VT')))
+Harness.add(Cable('W3', mm2=0.14, show_equiv=True, length=0.2, colors=('BK','BU','OG','VT')))
-Harness.add(Cable('W4', mm2=0.5, length=0.35, colors=('BK','RD')))
+Harness.add(Cable('W4', mm2=0.5, show_equiv=True, length=0.35, colors=('BK','RD')))
 Harness.objects['W1'].connect('X1',(1,2,3,4),'auto','X2','auto')
 Harness.objects['W2'].connect('X1',(1,2,3,4),'auto','X3','auto')
 Harness.objects['W3'].connect('X1',(1,5,6,7),'auto','X4',(1,3,4,5))

src/example3.py

@@ -8,9 +8,22 @@ Harness.add(Node('X2', num_pins=10, ports_left=True))
 Harness.add(Cable('W1', num_wires=10, color_code='IEC'))
 Harness.objects['W1'].connect_all_straight('X1','X2')
 
-Harness.add(Node('X3', num_pins=10, ports_right=True))
+Harness.add(Node('X3', num_pins=12, ports_right=True))
-Harness.add(Node('X4', num_pins=10, ports_left=True))
+Harness.add(Node('X4', num_pins=12, ports_left=True))
-Harness.add(Cable('W2', num_wires=10, color_code='DIN'))
+Harness.add(Cable('W2', num_wires=12, color_code='DIN'))
 Harness.objects['W2'].connect_all_straight('X3','X4')
 
+Harness.add(Node('X5', num_pins=20, ports_right=True))
+Harness.add(Node('X6', num_pins=20, ports_left=True))
+Harness.add(Cable('W3', num_wires=20, colors=('RD','YE','BU')))
+Harness.objects['W3'].connect_all_straight('X5','X6')
+
+Harness.add(Node('X7', num_pins=6, ports_right=True))
+Harness.add(Node('X8', num_pins=6, ports_left=True))
+Harness.add(Cable('W4', num_wires=6, length=1, mm2=1))
+Harness.objects['W4'].connect_all_straight('X7','X8')
+
+
+
+
 Harness.graphviz()

src/input/header.dot

@@ -2,7 +2,7 @@
 // https://github.com/formatc1702/WireViz
 // Daniel Rojas - 2020
 
-digraph G {
+graph G {
     graph [rankdir = LR, ranksep=2, fontname = "arial"];
-    edge [arrowhead=none, fontname = "arial"];
+    edge [fontname = "arial"];
     node [shape=record, style=rounded, fontname = "arial"];

src/wireviz.py

@@ -1,6 +1,7 @@
 
-COLOR_CODE_DIN = ['WH','BN','GN','YE','GY','PK','BU','RD','BK','VT']
+COLOR_CODES = {'DIN': ['WH','BN','GN','YE','GY','PK','BU','RD','BK','VT'],
-COLOR_CODE_IEC = ['BN','RD','OG','YE','GN','BU','VT','GY','WH','BK']
+               'IEC': ['BN','RD','OG','YE','GN','BU','VT','GY','WH','BK'],
+               'BW':  ['BK','WH']}
 
 color_hex = {
              'BK': '#000000',
@@ -42,9 +43,6 @@ class Harness:
         self.objects[object.name] = object
         self.objects[object.name].color_mode = self.color_mode
 
-    def debug(self):
-        print(self.objects)
-
     def graphviz(self, print_to_screen=False):
         with open('output/output.dot','w') as f:
             with open('input/header.dot','r') as infile:
@@ -146,7 +144,7 @@ class Node:
         if len(self.loops) > 0:
             s = s + '\n\n{edge[style=bold]\n'
             for x in self.loops:
-                s = s + '{name}:p{port_from}:{loop_side} -> {name}:p{port_to}:{loop_side}\n'.format(name=self.name, port_from=x[0], port_to=x[1], loop_side=x[2])
+                s = s + '{name}:p{port_from}:{loop_side} -- {name}:p{port_to}:{loop_side}\n'.format(name=self.name, port_from=x[0], port_to=x[1], loop_side=x[2])
             s = s + '}'
 
         s = s + '\n'
@@ -154,10 +152,13 @@ class Node:
 
 class Cable:
 
-    def __init__(self, name, mm2=0, awg=0, length=0, show_name=False, show_pinout=False, num_wires=None, colors=None, color_code=None, shield=False):
+    def __init__(self, name, mm2=None, awg=None, show_equiv=False, length=0, show_name=False, show_pinout=False, num_wires=None, colors=None, color_code=None, shield=False):
         self.name = name
+        if mm2 is not None and awg is not None:
+            raise Exception('You cannot define both mm2 and awg!')
         self.mm2 = mm2
         self.awg = awg
+        self.show_equiv = show_equiv
         self.length = length
         self.show_name = show_name
         self.show_pinout = show_pinout
@@ -167,22 +168,30 @@ class Cable:
         if color_code is None and colors is None:
             self.colors = ('',) * num_wires
         else:
-            if colors is None:
+            if colors is None: # no custom color pallet was specified
                 if num_wires is None:
                     raise Exception('Unknown number of wires')
                 else:
-                    # TODO: Loop through colors if num_wires > len(COLOR_CODE_XXX)
+                    if color_code is None:
-                    if color_code == 'DIN':
+                        raise Exception('No color code')
-                        self.colors = tuple(COLOR_CODE_DIN[:num_wires])
+                    # choose color code
-                    elif color_code == 'IEC':
+                    if color_code not in COLOR_CODES:
-                        self.colors = tuple(COLOR_CODE_IEC[:num_wires])
-                    else:
                         raise Exception('Unknown color code')
                     else:
-                if num_wires is None:
+                        cc = COLOR_CODES[color_code]
-                    self.colors = colors
+                n = num_wires
-                else:
+            else: # custom color pallet was specified
-                    self.colors = colors[:num_wires]
+                cc = colors
+                if num_wires is None: # assume number of wires = number of items in custom pallet
+                    n = len(cc)
+                else: # number of wires was specified
+                    n = num_wires
+
+            cc = tuple(cc)
+            if n > len(cc):
+                 m = num_wires // len(cc) + 1
+                 cc = cc * int(m)
+            self.colors = cc[:n]
 
     def connect(self, from_name, from_pin, via, to_name, to_pin):
         if from_pin == 'auto':
@@ -199,18 +208,6 @@ class Cable:
     def connect_all_straight(self, from_name, to_name):
         self.connect(from_name, 'auto', 'auto', to_name, 'auto')
 
-    def debug(self):
-        print(self.name)
-        print(self.colors)
-        if len(self.connections) > 0:
-            for i, x in enumerate(self.connections):
-                if i < len(self.colors):
-                    s = self.colors[int(x[2]-1)]
-                else:
-                    s = '--'
-                # print(self.colors(x[2]) if i < len(self.colors) else '-')
-                print('{}:{} -- {}({}) -> {}:{}'.format(x[0],x[1],x[2],s,x[3],x[4]))
-
     def graphviz(self):
         s = ''
         # print header
@@ -223,9 +220,12 @@ class Cable:
         s = s + '{'
         l = []
         l.append('{}x'.format(len(self.colors)))
-        if self.mm2 > 0:
+        if self.mm2 is not None:
-            l.append('{} mm²'.format(self.mm2))
+            e = awg_equiv(self.mm2)
-        if self.awg > 0:
+            es = ' ({} AWG)'.format(e) if e is not None else ''
+            mm ='{} mm²{}'.format(self.mm2, es)
+            l.append(mm)
+        if self.awg is not None:
             l.append('{} AWG'.format(self.awg))
         if self.shield == True:
             l.append(' + S')
@@ -255,6 +255,7 @@ class Cable:
         else:
             l = []
             for i,x in enumerate(self.colors,1):
+                if x in color_full:
                     if self.color_mode == 'full':
                         x = color_full[x].lower()
                     elif self.color_mode == 'FULL':
@@ -269,6 +270,8 @@ class Cable:
                         x = x.upper()
                     else:
                         raise Exception('Unknown color mode')
+                else:
+                    x = ''
                 l.append('<w{wireno}>{wirecolor}'.format(wireno=i,wirecolor=x))
             s = s + '|'.join(l)
             if self.shield == True:
@@ -296,12 +299,35 @@ class Cable:
                 if search_color in color_hex:
                     s = s + 'edge[color="#000000:{wire_color}:#000000"] '.format(wire_color=color_hex[search_color])
             if x[1] is not None:
-                t = '{from_name}:p{from_port} -> {via_name}:w{via_wire}{via_subport}; '.format(from_name=x[0],from_port=x[1],via_name=self.name, via_wire=x[2], via_subport='i' if self.show_pinout == True else '')
+                t = '{from_name}:p{from_port} -- {via_name}:w{via_wire}{via_subport}; '.format(from_name=x[0],from_port=x[1],via_name=self.name, via_wire=x[2], via_subport='i' if self.show_pinout == True else '')
                 s = s + t
             if x[4] is not None:
-                t = '{via_name}:w{via_wire}{via_subport} -> {to_name}:p{to_port}'.format(via_name=self.name, via_wire=x[2],to_name=x[3],to_port=x[4], via_subport='o' if self.show_pinout == True else '')
+                t = '{via_name}:w{via_wire}{via_subport} -- {to_name}:p{to_port}'.format(via_name=self.name, via_wire=x[2],to_name=x[3],to_port=x[4], via_subport='o' if self.show_pinout == True else '')
                 s = s + t
             s = s + '}\n'
         s = s + '}'
 
         return s
+
+def awg_equiv(mm2):
+    awg_equiv_table = {
+                        '0.09': 28,
+                        '0.14': 26,
+                        '0.25': 24,
+                        '0.34': 22,
+                        '0.5': 21,
+                        '0.75': 20,
+                        '1': 18,
+                        '1.5': 16,
+                        '2.5': 14,
+                        '4': 12,
+                        '6': 10,
+                        '10': 8,
+                        '16': 6,
+                        '25': 4,
+                        }
+    k = str(mm2)
+    if k in awg_equiv_table:
+        return awg_equiv_table[k]
+    else:
+        return None