Update __init__.py

Author: MichaelHotaling

klarfkit/__init__.py

@@ -1,5 +1,116 @@
 #!/usr/bin/env python
 # coding: utf-8
 
-import klarfkit
+import pandas as pd
+import matplotlib.pyplot as plt
+import seaborn as sns
+import numpy as np
+import warnings
 
+class WaferMap:
+
+    def __init__(self):
+        self.sample_size = None
+        self.die_pitch = None
+        self.die_origin = None
+        self.center_location = None
+        self.defect_list = pd.DataFrame()
+
+    def load_klarf(self, file, name=None):
+
+        with open(file) as f:
+            data = [i.strip() for i in f.readlines()]
+        cols = []
+        defects = []
+        defect_collect = False
+        for i in data:
+            
+            if "SampleSize" in i:
+                if self.sample_size and self.sample_size != (float(i[:-1].split()[-1]) * 1000):
+                    warnings.warn(f"Warning: Files contain inconsistant sample sizes! {self.sample_size/1000}mm vs {(float(i[:-1].split()[-1]))}mm!")
+                self.sample_size = float(i[:-1].split()[-1]) * 1000
+            
+            elif "DiePitch" in i:
+                if self.die_pitch and self.die_pitch != [float(j) for j in i[:-1].split(" ")[1:]]:
+                    warnings.warn("Warning: Files contain inconsistent die sizes. Recommend setting die_line_alpha to 0 for plotting")
+                self.die_pitch = [float(j) for j in i[:-1].split(" ")[1:]]
+            
+            elif "DieOrigin" in i:
+                self.die_origin = [float(j) for j in i[:-1].split(" ")[1:]]
+            
+            elif "CenterLocation" in i:
+                self.center_location = [float(j) for j in i[:-1].split(" ")[1:]]
+            
+            elif "DefectRecordSpec" in i:
+                for j in i[:-1].split()[2::]:
+                    cols.append(j)
+            
+            elif "DefectList" in i:
+                defect_collect = True
+
+            elif "SummarySpec" in i:
+                defect_collect = False
+
+            elif defect_collect:
+                defects.append(i.replace(";", "").split())
+
+        df = pd.DataFrame(defects, columns=cols).astype(float)
+        df['_XACTUAL'] = (df['XINDEX'] * self.die_pitch[0]) + df['XREL'] - self.center_location[0]
+        df['_YACTUAL'] = (df['YINDEX'] * self.die_pitch[1]) + df['YREL'] - self.center_location[1]
+
+        if name:
+            df['_KLARFNAME'] = name
+        else:
+            df['_KLARFNAME'] = file
+
+        self.defect_list = pd.concat([self.defect_list, df]).reset_index(drop=True)
+
+    def plot_wafer_map(self, color='_KLARFNAME', die_line_alpha=0.2, die_line_color='gray', *args, **kwargs):
+        wafer_sin = (np.sin(np.arange(0, 2 * np.pi, 1 / 1000))) * self.sample_size / 2
+        wafer_cos = (np.cos(np.arange(0, 2 * np.pi, 1 / 1000))) * self.sample_size / 2
+        # Plot the wafer circle
+        plt.plot(wafer_sin, wafer_cos, color='k', linewidth=0.3)
+
+        for i in range(-int(self.sample_size // self.die_pitch[0]) - 10,
+                       int(self.sample_size // self.die_pitch[0]) + 10):
+
+            die_x_lines = -self.center_location[0] + (i * self.die_pitch[0])
+            height_squared = (self.sample_size / 2) ** 2 - die_x_lines ** 2
+            if height_squared > 0:
+                height = np.sqrt(height_squared)
+
+                plt.vlines(die_x_lines,
+                           -height,
+                           height,
+                           color=die_line_color,
+                           alpha=die_line_alpha)
+
+        for i in range(-int(self.sample_size // self.die_pitch[1]) - 10,
+                       int(self.sample_size // self.die_pitch[1]) + 10):
+
+            die_y_lines = -self.center_location[1] + (i * self.die_pitch[1])
+            width_squared = (self.sample_size / 2) ** 2 - die_y_lines ** 2
+            if width_squared > 0:
+                width = np.sqrt(width_squared)
+
+                plt.hlines(die_y_lines,
+                           -width,
+                           width,
+                           color=die_line_color,
+                           alpha=die_line_alpha)
+
+        if color in self.defect_list.columns:
+            sns.scatterplot(x=self.defect_list['_XACTUAL'],
+                            y=self.defect_list['_YACTUAL'],
+                            hue=self.defect_list[color],
+                            *args, **kwargs)
+
+            plt.legend(loc='lower left')
+        else:
+            sns.scatterplot(x=self.defect_list['_XACTUAL'],
+                            y=self.defect_list['_YACTUAL'],
+                            color=color,
+                            *args, **kwargs)
+
+        plt.xlim(-self.sample_size / 2 - 2000, self.sample_size / 2 + 2000)
+        plt.ylim(-self.sample_size / 2 - 2000, self.sample_size / 2 + 2000)