Index: trunk/psphot/src/models/pmModel_TEST1.c
===================================================================
--- trunk/psphot/src/models/pmModel_TEST1.c	(revision 14655)
+++ trunk/psphot/src/models/pmModel_TEST1.c	(revision 15000)
@@ -217,6 +217,6 @@
 	    out[i] = in[i];
 	} else {	    
-	    psPolynomial2D *poly = psf->params->data[i];
-	    out[i] = psPolynomial2DEval(poly, in[PM_PAR_XPOS], in[PM_PAR_YPOS]);
+	    pmTrend2D *trend = psf->params->data[i];
+	    out[i] = pmTrend2DEval(trend, in[PM_PAR_XPOS], in[PM_PAR_YPOS]);
 	}
     }
@@ -246,7 +246,6 @@
     for (int i = 0; i < psf->params->n; i++) {
 	if (i == PM_PAR_SKY) continue;
-	psPolynomial2D *poly = psf->params->data[i];
-	assert (poly);
-	PAR[i] = psPolynomial2DEval(poly, Xo, Yo);
+	pmTrend2D *trend = psf->params->data[i];
+	PAR[i] = pmTrend2DEval(trend, Xo, Yo);
     }