From 9dbdef7a4b14b1d0cc8d9568efe5e3ac64b2de9c Mon Sep 17 00:00:00 2001
From: Martin Reinecke <martin@mpa-garching.mpg.de>
Date: Thu, 22 Aug 2019 15:03:49 +0200
Subject: [PATCH] fixes

---
 nifty_gridder.cc | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/nifty_gridder.cc b/nifty_gridder.cc
index e1c8b63..4025f73 100644
--- a/nifty_gridder.cc
+++ b/nifty_gridder.cc
@@ -1488,8 +1488,13 @@ template<typename T> pyarr_c<T> vis2dirty_wstack(const Baselines<T> &baselines,
 cout << "data w range: " << wmin << " to " << wmax << endl;
 
 //FIXME temporary
-double psz=gconf.Pixsize_x();
-  double dw = psz;// distance between two w planes, FIXME
+double dw;
+{
+  double x0 = -0.5*nx_dirty*psx,
+         y0 = -0.5*ny_dirty*psy;
+  double nmin = sqrt(1.-x0*x0-y0*y0)-1.;
+  dw = 1./(2*abs(nmin));
+}
 cout << "delta w: " << dw << endl;
 
   double w_eps=1e-7; // FIXME
-- 
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