Changeset 31034 for branches/eam_branches/ipp-20110213/psModules/src/objects/models/pmModel_DEV.c

Timestamp:

Mar 24, 2011, 11:39:04 AM (15 years ago)

Author:

eugene

Message:

unify code for model guesses (Io; Xo,Yo; Sxx,Sxy,Syy); use the moment peak if the peak flux is nan; skip sources without a valid Io guess

File:

• branches/eam_branches/ipp-20110213/psModules/src/objects/models/pmModel_DEV.c (modified) (1 diff)

branches/eam_branches/ipp-20110213/psModules/src/objects/models/pmModel_DEV.c

@@ -217 +217 @@
 bool PM_MODEL_GUESS (pmModel *model, pmSource *source)
 {
-    pmMoments *moments = source->moments;
-    pmPeak    *peak    = source->peak;
-    psF32     *PAR  = model->params->data.F32;
-
-    psEllipseMoments emoments;
-    emoments.x2 = moments->Mxx;
-    emoments.xy = moments->Mxy;
-    emoments.y2 = moments->Myy;
-
-    // force the axis ratio to be < 20.0
-    psEllipseAxes axes = psEllipseMomentsToAxes (emoments, 20.0);
-
-    if (!isfinite(axes.major)) return false;
-    if (!isfinite(axes.minor)) return false;
-    if (!isfinite(axes.theta)) return false;
-
-    psEllipseShape shape = psEllipseAxesToShape (axes);
-
-    if (!isfinite(shape.sx))  return false;
-    if (!isfinite(shape.sy))  return false;
-    if (!isfinite(shape.sxy)) return false;
-
-    // the other parameters depend on the guess for PAR_7
+    psF32 *PAR  = model->params->data.F32;
+
+    // sky is set to 0.0
+    PAR[PM_PAR_SKY]  = 0.0;
+
+    // set the shape parameters
+    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments)) {
+      return false;
+    }
+
+    // the normalization is modified by the slope
     float index = 0.5 / ALPHA;
     float bn = 1.9992*index - 0.3271;
-    // float fR = 1.0 / (sqrt(2.0) * pow (bn, index));
     float Io = exp(0.5*bn);
 
-    float Sxx = PS_MAX(0.5, shape.sx);
-    float Syy = PS_MAX(0.5, shape.sy);
-
-    PAR[PM_PAR_SKY]  = 0.0;
-    PAR[PM_PAR_I0]   = peak->rawFlux / Io;
-    PAR[PM_PAR_XPOS] = peak->xf;
-    PAR[PM_PAR_YPOS] = peak->yf;
-    // PAR[PM_PAR_SXX]  = Sxx * fR;
-    // PAR[PM_PAR_SYY]  = Syy * fR;
-    PAR[PM_PAR_SXX]  = Sxx;
-    PAR[PM_PAR_SYY]  = Syy;
-    PAR[PM_PAR_SXY]  = shape.sxy;
+    // set the model normalization
+    if (!pmModelSetNorm(&PAR[PM_PAR_I0], source)) {
+      return false;
+    }
+    PAR[PM_PAR_I0] /= Io;
+
+    // set the model position
+    if (!pmModelSetPosition(&PAR[PM_PAR_XPOS], &PAR[PM_PAR_YPOS], source)) {
+      return false;
+    }
 
     return(true);