feat: 🎨 adjustments to plots as requested by Moritz

Images/Datavis/generate_plot.py

@@ -40,7 +40,7 @@ def setup_step(plot_data, key):
     plot_data[key] = next_step;
     plot_data['steps'].append(next_step);
 
-def read_ltspice_file(filename):
+def read_ltspice_file(filename, plot_config):
     print(f"Reading LTSpice .txt file {filename}...");
 
     series = [];
@@ -57,8 +57,13 @@ def read_ltspice_file(filename):
             line = line.rstrip("\n");
             lre = Re();
             
-            if lre.search("^Step Information: (.*)  \(Step: .*\)$", line):
+            if lre.search("^Step Information: ([^=]*)=([\d\.\+-]+)(\w?)  \(Step: .*\)$", line):
-                current_step = lre.last_match[1];
+                step_param = plot_config.get('step_parameter', lre.last_match[1]);
+
+                value = f"{round(float(lre.last_match[2]), 2)}";
+                unit = f"{lre.last_match[3]}{plot_config.get('step_unit', '')}";
+
+                current_step = "{value:>6s} {unit:s}".format(value=value, unit=unit);
             else:
                 setup_step(plot_data, current_step);
                 step = plot_data[current_step];
@@ -93,6 +98,11 @@ def decorate_ax(ax, plot_config):
     if('xscale' in plot_config):
         ax.set_xscale(plot_config['xscale']);
 
+    if('xmin' in plot_config):
+        ax.set_xlim(left=plot_config['xmin']);
+    if('xmax' in plot_config):
+        ax.set_xlim(right=plot_config['xmax']);
+
     if('xformatter' in plot_config):
         if('engineering' == plot_config['xformatter']):
             formatter = EngFormatter(places=plot_config.get('xplaces', 0), sep="\N{THIN SPACE}")
@@ -103,6 +113,14 @@ def decorate_ax(ax, plot_config):
             formatter = EngFormatter(places=plot_config.get('yplaces', 0))
             ax.yaxis.set_major_formatter(formatter)
 
+    legend = ax.legend();
+    hp = legend._legend_box.get_children()[1]
+    for vp in hp.get_children():
+        for row in vp.get_children():
+            row.set_width(350)  # need to adapt this manually
+            row.mode= "expand"
+            row.align="right"
+
     ax.grid(True);
 
 def plot_lt_sweep(fig, plot_config, plot_data):
@@ -130,20 +148,17 @@ def plot_lt_sweep(fig, plot_config, plot_data):
                 matplotlib.lines.Line2D([0], [0], color=cmap(1.), lw=4)];
 
     for idx, step in enumerate(plot_data['steps']):
-        ax.plot(step[x_key], step[y_key], color=cmap(idx/(num_steps-1)));
+        ax.plot(step[x_key], step[y_key], color=cmap(idx/(num_steps-1)), label=step['step']);
 
     if(not 'xformatter' in plot_config):
         plot_config['xformatter'] = 'engineering';
 
-    legend_data = [];
+    if(not 'xmin' in plot_config):
-    for x in [0, int(num_steps/2), num_steps-1]:
+        plot_config['xmin'] = np.min(plot_data['steps'][0][x_key]);
-        step_name = plot_data['steps'][x]['step'];
+    if(not 'xmax' in plot_config):
-        for orig, replacement in plot_config.get('legend_replace', dict()).items():
+        plot_config['xmax'] = np.max(plot_data['steps'][0][x_key]);
-            step_name = step_name.replace(orig, replacement);
 
-        legend_data.append(step_name);
+    ax.legend();
-
-    ax.legend(custom_lines, legend_data);
 
     decorate_ax(ax, plot_config);
 
@@ -156,7 +171,7 @@ def generate_plot(plot_config):
             raise RuntimeError("Missing load type (`loadtype`) for plot config");
         
         if(plot_config['loadtype'] == 'ltspice'):
-            plot_data = read_ltspice_file(os.path.join(YAML_DIR, plot_config['load']));
+            plot_data = read_ltspice_file(os.path.join(YAML_DIR, plot_config['load']), plot_config);
 
     fig = plt.figure();
 

Images/Datavis/plots.yml

@@ -9,6 +9,8 @@ defaults:
 plots:
   - load: Parasitics/SingleStage_Cfp_Sweep.txt
     loadtype: ltspice
+    step_parameter: $C_{fp}$
+    step_unit: F
 
     ofile: Parasitics/SingleStage_Cfp_Sweep.png
     
@@ -16,9 +18,10 @@ plots:
     y_key: V(n002) dB
 
     title: Verstärkung bei konstantem $R_f = 1G\Omega$ und varriertem $C_{f}$
-    ylabel: Gain (dB)
+    ylabel: Normalisierte Verstärkung (dB)
   - load: Parasitics/SingleStage_Rf_Sweep.txt
     loadtype: ltspice
+    step_unit: $\Omega$
 
     ofile: Parasitics/SingleStage_Rf_Sweep.png
     
@@ -26,9 +29,10 @@ plots:
     y_key: V(n002) dB
 
     title: Verstärkung bei konstantem $C_{f} = 100fF$ und varriertem $R_{f}$
-    ylabel: Gain (dB)
+    ylabel: Normalisierte Verstärkung (dB)
   - load: Parasitics/SingleStage_Rf_Sweep_Noise.txt
     loadtype: ltspice
+    step_unit: $\Omega$
 
     ofile: Parasitics/SingleStage_Rf_Sweep_Noise.png
     
@@ -42,6 +46,7 @@ plots:
     yplaces: 0
   - load: Parasitics/SingleStage_LTC6268-10_Rf_Sweep_Noise.txt
     loadtype: ltspice
+    step_unit: $\Omega$
 
     ofile: Parasitics/SingleStage_LTC_Rf_Sweep_Noise.png
     
@@ -50,11 +55,12 @@ plots:
     x_key: frequency
 
     title: Eingangsbezogener Noise-Level bei varriertem $R_{f}$ (LTC6268-10)
-    ylabel: Noise $\left(A/\sqrt{Hz}\right)$
+    ylabel: Rauschen $\left(A/\sqrt{Hz}\right)$
     yformatter: engineering
     yplaces: 0
   - load: Parasitics/SingleStage_LTC6268-10_Cin_Sweep_Noise.txt
     loadtype: ltspice
+    step_unit: F
 
     ofile: Parasitics/SingleStage_LTC_Cin_Sweep_Noise.png
     
@@ -62,12 +68,13 @@ plots:
     y_key: V(onoise)/1G
     x_key: frequency
 
-    title: Eingangsbezogener Noise-Level bei varriertem $C_{in}$ (LTC6268-10)
+    title: Eingangsbezogener Noise-Level bei varriertem $C_{\mathrm{in,p}}$ (LTC6268-10)
-    ylabel: Noise $\left(A/\sqrt{Hz}\right)$
+    ylabel: Rauschen $\left(A/\sqrt{Hz}\right)$
     yformatter: engineering
     yplaces: 0
   - load: Parasitics/SingleStage_LTC6268-10_Cin_Sweep_Noise.txt
     loadtype: ltspice
+    step_unit: F
 
     ofile: Parasitics/SingleStage_LTC_Cin_Sweep_Noise_log.png
     
@@ -75,13 +82,14 @@ plots:
     y_key: V(onoise)/1G
     x_key: frequency
 
-    title: Eingangsbezogener Noise-Level bei varriertem $C_{in}$ (LTC6268-10)
+    title: Eingangsbezogener Noise-Level bei varriertem $C_{\mathrm{in,p}}$ (LTC6268-10)
-    ylabel: Noise $\left(A/\sqrt{Hz}\right)$
+    ylabel: Rauschen $\left(A/\sqrt{Hz}\right)$
     yformatter: engineering
     yscale: log
     yplaces: 0
   - load: Parasitics/SingleStage_GBWP_Sweep.txt
     loadtype: ltspice
+    step_unit: Hz
 
     ofile: Parasitics/SingleStage_GBWP_Sweep.png
     
@@ -89,9 +97,10 @@ plots:
     y_key: V(n002) dB
 
     title: Verstärkung bei variiertem GBWP
-    ylabel: Gain (dB)
+    ylabel: Normalisierte Verstärkung (dB)
   - load: Parasitics/SingleStage_Cin_Sweep.txt
     loadtype: ltspice
+    step_unit: F
 
     ofile: Parasitics/SingleStage_Cin_Sweep.png
     
@@ -99,4 +108,4 @@ plots:
     y_key: V(vout) dB
 
     title: Verstärkung bei variierter Eingangskapazität
-    ylabel: Gain (dB)
+    ylabel: Normalisierte Verstärkung (dB)