Fix -space [i]pf png plots

We now enforce antialiasing to get smooth images.

Author: rquey

VERSIONS

@@ -1,9 +1,10 @@
-New in 4.6.1-13 (11 Sep 2023):
+New in 4.6.1-14 (11 Sep 2023):
 - module -T: fixed -domain cylinder and circle, fixed tesr reading, made minor
   fixes.
 - module -M: fixed -elset, fixed -statelset group -elt hex, fixed -statnode
   col_stdtriangle, fixed -statelt part in 2D, added -faset for -format inp.
-- module -V: fixed -datacellcolscheme ipf for -crysym hexagonal.
+- module -V: fixed -datacellcolscheme ipf for -crysym hexagonal, fixed
+  -space [i]pf png output.
 - general: updated tests to pass on Ubuntu 22, made minor compilation fix.
 
 New in 4.6.0 (06 Apr 2023):

doc/conf.py

@@ -11,8 +11,8 @@
 import sphinx_rtd_theme
 
 project = u'Neper'
-version = u'4.6.1-13'
-release = u'4.6.1-13'
+version = u'4.6.1-14'
+release = u'4.6.1-14'
 author = u'Romain Quey'
 copyright = u'Romain Quey'
 language = 'en'

src/CMakeLists.txt

@@ -7,7 +7,7 @@ if(POLICY CMP0077)
   cmake_policy(SET CMP0077 NEW)
 endif()
 
-set(NEPER_VERSION \"4.6.1-13\")
+set(NEPER_VERSION \"4.6.1-14\")
 project(neper)
 
 if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8.1)

src/neut/neut_asy/neut_asy.c

@@ -64,7 +64,7 @@ neut_asy_convert (char *asymptote, char *filename, int imagewidth, int imageheig
                           !strcmp (formats[i], "png") ? pixels: "");
 
       ut_file_openmessage (filename2, "w");
-      sprintf (command, "%s -f %s -render %f %s -o %s", asymptote, formats[i],
+      sprintf (command, "%s -f %s -antialias=4 -render %f %s -o %s", asymptote, formats[i],
                imageheight * .00492046785641154627, filename, filename2);
 
       if (system (command) == -1)