From f664694d1d8f93e875d6ec51d8d0586c3c6e528b Mon Sep 17 00:00:00 2001
From: gobbo_a <alexandre.gobbo@psi.ch>
Date: Thu, 8 Jan 2026 14:25:51 +0100
Subject: [PATCH] Update psss_panel

---
 .../src/main/pkg/script/psss/Correlation.py   | 108 ++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 psss-panel/src/main/pkg/script/psss/Correlation.py

diff --git a/psss-panel/src/main/pkg/script/psss/Correlation.py b/psss-panel/src/main/pkg/script/psss/Correlation.py
new file mode 100644
index 0000000..b2d4b6d
--- /dev/null
+++ b/psss-panel/src/main/pkg/script/psss/Correlation.py
@@ -0,0 +1,108 @@
+import math
+import sys, traceback          
+from mathutils import fit_polynomial, PolynomialFunction
+from plotutils import plot_line, plot_function
+import org.apache.commons.math3.stat.correlation.PearsonsCorrelation as PearsonsCorrelation
+import ch.psi.pshell.bs.PipelineServer as PipelineServer
+
+
+TYPE_CHANNEL = 0
+TYPE_STREAM = 1
+TYPE_CAMERA= 2
+
+if get_exec_pars().source == CommandSource.ui:
+    dx = "SARFE10-PSSS059:SPECTRUM_Y_SUM"
+    dy = "SARFE10-PBPS053:INTENSITY"
+    window = 40
+    offset=-2
+    p = plot(None)[0]    
+    linear_fit = True
+    quadratic_fit = True
+
+corr = None
+pars_lin = None 
+pars_quad = None
+
+
+for s in p.getAllSeries():
+    p.removeSeries(s)    
+
+stream = Stream("correlation_stream", dispatcher)
+
+
+def add_point(x,y):
+    global marker
+    sd.appendData(x, y)
+    if len(sd.x) > window:
+        #Remove First Element
+        sd.token.remove(0)    
+    ax = sd.x
+    ay = sd.y
+    if len(ax)>2:
+        x1, x2 = min(ax), max(ax)  
+        res = (x2-x1)/100     
+        if x1!=x2:
+            #Display correlation
+            corr= PearsonsCorrelation().correlation(to_array(ax,'d'), to_array(ay,'d'))        
+            s = "Correlation=" + str(round(corr,4))
+            #print s
+            if get_exec_pars().source == CommandSource.ui:
+                if marker is not None: 
+                    p.removeMarker(marker)
+                marker = p.addMarker(x2+res, p.AxisId.X, s,  p.getBackground())
+                marker.setLabelPaint(Color.WHITE)
+            if linear_fit:
+                #Calculate, print and plot linear fit
+                pars_lin = (a0,a1) = fit_polynomial(ay, ax, 1)
+                #print "Fit lin  a1:" , a1, " a0:",a0        
+                y1 = poly(x1, pars_lin)
+                y2 = poly(x2, pars_lin)
+                plot_line(p, x1, y1, x2, y2, width = 2, color = Color.BLUE, name = "Fit Linear")
+            if quadratic_fit:
+                #Calculate, print and plot quadratic fit
+                pars_quad = (a0,a1,a2) = fit_polynomial(ay, ax, 2)
+                #print "Fit quad a2:" , a2, "a1:" , a1, " a0:",a0        
+                fitted_quad_function = PolynomialFunction(pars_quad)
+                ax = frange(x1, x2, res, True)
+                plot_function(p, fitted_quad_function, "Fit Quadratic", ax, color=Color.GREEN)
+
+
+
+try:
+    stream.addScalar(dx, dx, 1, 0)
+    stream.addScalar(dy, dy, 1, 0)
+    stream.initialize()
+    stream.start(True)
+        
+    p.addSeries(LinePlotSeries("Data")) 
+    sd=p.getSeries(0)
+    sd.setLinesVisible(False)    
+    sd.setPointSize(4)
+
+    stream_buffer = LimitedSizeDict(size_limit=51)
+    
+    if get_exec_pars().source == CommandSource.ui:
+        if globals().has_key("marker"):
+            p.removeMarker(marker)    
+        marker=None
+            
+    while(True):
+        #Sample and plot data
+        stream.waitValueNot(stream.take(), 10000)
+        cache = stream.take()
+        pid = cache.getPulseId()
+        x=cache.getValue(dx)
+        y=cache.getValue(dy)
+        if offset==0:
+            add_point(x,y)
+        else:
+            stream_buffer[pid] = (x,y)
+            if offset<0:
+                if stream_buffer.has_key(pid+offset):                    
+                    add_point(x,stream_buffer[pid+offset][1])
+            else:
+                if stream_buffer.has_key(pid-offset):
+                    add_point(stream_buffer[pid-offset][0], y)
+        
+finally:
+    stream.close()
\ No newline at end of file