[Plplot-cvs] SF.net SVN: plplot:[8640] trunk

[<and...@us...>]

Revision: 8640
          http://plplot.svn.sourceforge.net/plplot/?rev=8640&view=rev
Author:   andrewross
Date:     2008-08-13 13:25:33 +0000 (Wed, 13 Aug 2008)

Log Message:
-----------
Add python version of example 27.

Modified Paths:
--------------
    trunk/examples/python/CMakeLists.txt
    trunk/plplot_test/test_python.sh.in

Added Paths:
-----------
    trunk/examples/python/x27
    trunk/examples/python/xw27.py

Modified: trunk/examples/python/CMakeLists.txt
===================================================================
--- trunk/examples/python/CMakeLists.txt	2008-08-13 12:32:08 UTC (rev 8639)
+++ trunk/examples/python/CMakeLists.txt	2008-08-13 13:25:33 UTC (rev 8640)
@@ -43,6 +43,7 @@
 "24"
 "25"
 "26"
+"27"
 "28"
 "29"
 "30"

Added: trunk/examples/python/x27
===================================================================
--- trunk/examples/python/x27	                        (rev 0)
+++ trunk/examples/python/x27	2008-08-13 13:25:33 UTC (rev 8640)
@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+
+# Copyright (C) 2008  Andrew Ross
+#
+# This file is part of PLplot.
+#
+# PLplot is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Library General Public License as published
+# by the Free Software Foundation; version 2 of the License.
+#
+# PLplot is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Library General Public License for more details.
+#
+# You should have received a copy of the GNU Library General Public License
+# along with the file PLplot; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+
+
+# Run all python plplot examples non-interactively.
+
+# Append to effective python path so that can find plplot modules.
+from plplot_python_start import *
+
+import sys
+from plplot import *
+
+# Parse and process command line arguments
+plparseopts(sys.argv, PL_PARSE_FULL)
+
+# Initialize plplot
+plinit()
+
+import xw27
+
+# Terminate plplot
+plend()
+


Property changes on: trunk/examples/python/x27
___________________________________________________________________
Added: svn:executable
   + *
Added: svn:keywords
   + Author Date Id Revision
Added: svn:eol-style
   + native

Added: trunk/examples/python/xw27.py
===================================================================
--- trunk/examples/python/xw27.py	                        (rev 0)
+++ trunk/examples/python/xw27.py	2008-08-13 13:25:33 UTC (rev 8640)
@@ -0,0 +1,116 @@
+#  $Id:$
+#
+#  Copyright (C) 2007 Arjen Markus
+#  Copyright (C) 2008 Andrew Ross
+
+#  Drawing "spirograph" curves - epitrochoids, cycolids, roulettes
+
+#  This file is part of PLplot.
+#
+#  PLplot is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Library Public License as published
+#  by the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  PLplot is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU Library General Public License for more details.
+#
+#  You should have received a copy of the GNU Library General Public License
+#  along with PLplot; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+#
+
+from plplot_py_demos import *
+
+# main
+# 
+# Generates two kinds of plots:
+#   - construction of a cycloid (animated)
+#   - series of epitrochoids and hypotrochoids
+
+def main():
+
+    # R, r, p, N 
+    params = [ [21.0,  7.0,  7.0,  3.0],  # Deltoid
+               [21.0,  7.0, 10.0,  3.0],
+               [21.0, -7.0, 10.0,  3.0],
+               [20.0,  3.0,  7.0, 20.0],
+               [20.0,  3.0, 10.0, 20.0],
+               [20.0, -3.0, 10.0, 20.0],
+               [20.0, 13.0,  7.0, 20.0],
+               [20.0, 13.0, 20.0, 20.0],
+               [20.0,-13.0, 20.0, 20.0] ]
+
+    # Illustrate the construction of a cycloid
+
+    # TODO
+    #cycloid();
+
+    # Loop over the various curves
+    # First an overview, then all curves one by one    
+    plssub(3, 3) ; # Three by three window
+
+    for i in range(9) :
+        pladv(0) ;
+        plvpor( 0.0, 1.0, 0.0, 1.0 ) ;
+        spiro( params[i] ) ;
+
+    pladv(0) ;
+    plssub(1, 1) ; # One window per curve
+
+    for i in range(9):
+        pladv(0) ;
+        plvpor( 0.0, 1.0, 0.0, 1.0 ) ;
+        spiro( params[i] ) ;
+
+
+def spiro(params):
+    # Fill the coordinates
+    NPNT = 20000
+
+    windings = int(params[3]);
+    steps    = int(NPNT/windings) ;
+    dphi     = 8.0*arccos(-1.0)/steps ;
+
+    xmin = 0.0 ; # This initialisation is safe!
+    xmax = 0.0 ;
+    ymin = 0.0 ;
+    ymax = 0.0 ;
+
+    xcoord = zeros(windings*steps+1);
+    ycoord = zeros(windings*steps+1);
+
+    for i in range(windings*steps+1) :
+        phi       = i * dphi ;
+        phiw      = (params[0]-params[1])/params[1]*phi ;
+        xcoord[i] = (params[0]-params[1])*cos(phi) + params[2]*cos(phiw) ;
+        ycoord[i] = (params[0]-params[1])*sin(phi) - params[2]*sin(phiw) ;
+        
+        if ( xmin > xcoord[i] ) :
+            xmin = xcoord[i] ;
+        if ( xmax < xcoord[i] ) :
+            xmax = xcoord[i] ;
+        if ( ymin > ycoord[i] ) :
+            ymin = ycoord[i] ;
+        if ( ymax < ycoord[i] ) :
+            ymax = ycoord[i] ;
+            
+    if ( xmax-xmin > ymax-ymin ) :
+        scale = xmax - xmin ;
+    else :
+        scale = ymax - ymin ;
+    
+    xmin = - 0.65 * scale ;
+    xmax =   0.65 * scale ;
+    ymin = - 0.65 * scale ;
+    ymax =   0.65 * scale ;
+
+    plwind( xmin, xmax, ymin, ymax ) ;
+
+    plcol0(1);
+    plline( xcoord, ycoord ) ;
+
+
+main()


Property changes on: trunk/examples/python/xw27.py
___________________________________________________________________
Added: svn:keywords
   + Author Date Id Revision
Added: svn:eol-style
   + native

Modified: trunk/plplot_test/test_python.sh.in
===================================================================
--- trunk/plplot_test/test_python.sh.in	2008-08-13 12:32:08 UTC (rev 8639)
+++ trunk/plplot_test/test_python.sh.in	2008-08-13 13:25:33 UTC (rev 8640)
@@ -31,7 +31,7 @@
 # Skip 21 if using Numeric - it doesn't work
 # For 24 you need special fonts installed to get good result.
 for index in 01 02 03 04 05 06 07 08 09 10 11 12 13 15 16 18 \
-20 22 23 24 25 26 28 29 30 @NUMPY_EXAMPLES@ ; do
+20 22 23 24 25 26 27 28 29 30 @NUMPY_EXAMPLES@ ; do
   @PYTHON_EXECUTABLE@ $pythondir/x$index -dev $device -o ${OUTPUT_DIR}/x${index}p.$dsuffix $options 2> test.error
   status_code=$?
   cat test.error


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