fixed bad scaling with singleton plots

svn path=/trunk/matplotlib/; revision=344

Author: jdh2358

.matplotlibrc

@@ -36,6 +36,7 @@ interactive  : False     # see http://matplotlib.sourceforge.net/interactive.htm
 lines.linewidth   : 0.5     # line width in points
 lines.linestyle   : -       # solid line
 lines.color       : b       # blue; color format or hex string
+lines.marker      : None    # the default marker
 lines.markerfacecolor  : b       
 lines.markeredgecolor  : k
 lines.markeredgewidth  : 0.5

CHANGELOG

@@ -1,5 +1,7 @@
 New entries should be added at the top
 =======
+2004-06-15 Improved (yet again!) axis scaling to properly handle
+           singleton plots - JDH
 
 2004-06-15 Restored the old FigureCanvasGTK.draw() - SC
 

MANIFEST

@@ -5,6 +5,7 @@ GOALS
 INSTALL
 INTERACTIVE
 KNOWN_BUGS
+MANIFEST
 MANIFEST.in
 Makefile
 README

Makefile

@@ -2,6 +2,9 @@
 # Copyright (C) 2003  <jdhunter@ace.bsd.uchicago.edu>
 # $Header$
 # $Log$
+# Revision 1.35  2004/06/15 17:29:53  jdh2358
+# fixed bad scaling with singleton plots
+#
 # Revision 1.34  2004/06/09 13:47:55  jdh2358
 # added CXX ft2font
 #
@@ -119,7 +122,7 @@ clean:
 	${PYTHON} setup.py clean;\
 	find . -name "_tmp*.py" | xargs rm -f;\
 	find . \( -name "*~" -o -name "*.pyc" \) | xargs rm -f;\
-	find examples \( -name "*.png" -o -name "*.ps"  -o -name "*.jpg" -o -name "*.eps" \) | xargs rm -f
+	find examples \( -name "*.png" -o -name "*.ps"  -o -name "*.jpg" -o -name "*.eps" -o -name "*.tar" -name "*.gz" \) | xargs rm -f
 	find unit \( -name "*.png" -o -name "*.ps"  -o -name "*.jpg" -o -name "*.eps" \) | xargs rm -f
 	find . \( -name "#*" -o -name ".#*" -o -name ".*~" -o -name "*~" \) | xargs rm -f
 

TODO

@@ -430,6 +430,6 @@
 
 -- upload 0.54.2 zip
 
--- need a new way to indicate linestyle
+-- DONE need a new way to indicate linestyle
 
 -- update website re debian

examples/backend_driver.py

@@ -80,7 +80,7 @@ def drive(backend):
 times = {}
 backends = ['PS', 'GD', 'Paint', 'Agg', 'Template']
 #backends.extend([ 'GTK', 'WX', 'TkAgg'])
-#backends = [ 'Agg']
+backends = [ 'Agg']
 #backends = [ 'Agg', 'PS', 'Template']
 
 for backend in backends:

examples/legend_demo2.py

@@ -17,6 +17,7 @@
 ylabel('volts')
 title('Damped oscillation')
 #savefig('legend_demo2')
+#axis([0,2,-1,1])
 show()
 
 

examples/scatter_demo2.py

@@ -7,7 +7,7 @@
 
 delta1 = diff(intc.open)/intc.open[0]
 
-volume = (10*intc.volume[:-2]/intc.volume[0])**2
+volume = (15*intc.volume[:-2]/intc.volume[0])**2
 close = 0.003*intc.close[:-2]/0.003*intc.open[:-2]
 p = scatter(delta1[:-1], delta1[1:], c=close, s=volume)
 set(p, 'alpha', 0.75)

src/_transforms.cpp

@@ -1,5 +1,4 @@
 #include <functional>
-#include <numeric>
 #include "_transforms.h"
 
 
@@ -155,17 +154,19 @@ Interval::update(const Py::Tuple &args) {
   double minx = _val1->val();
   double maxx = _val2->val();
 
+  double thisval;
   if (ignore) {
-    minx = std::numeric_limits<double>::max();
-    maxx = std::numeric_limits<double>::min();
+    thisval = Py::Float(vals[0]);
+    minx = thisval;
+    maxx = thisval;
   }
 
-  double thisval;
+
   for (size_t i=0; i<Nval; ++i) {
     thisval = Py::Float(vals[i]);
 
-    if (thisval<minx) minx=thisval;
-    if (thisval>maxx) maxx=thisval;
+    if (thisval<minx) minx = thisval;
+    if (thisval>maxx) maxx = thisval;
   } 
 
 
@@ -340,14 +341,19 @@ Bbox::update(const Py::Tuple &args) {
   double miny = _ll->yval();
   double maxy = _ur->yval();
 
+  Py::Tuple tup;
   if (ignore) {
-    minx = std::numeric_limits<double>::max();
-    maxx = std::numeric_limits<double>::min();
-    miny = std::numeric_limits<double>::max();
-    maxy = std::numeric_limits<double>::min();
+    tup = xys[0];
+    double x = Py::Float(tup[0]);
+    double y = Py::Float(tup[1]);
+
+    minx=x;
+    maxx=x;
+    miny=y;
+    maxy=y;
   }
 
-  Py::Tuple tup;
+
   for (size_t i=0; i<Nx; ++i) {
     tup = xys[i];
     double x = Py::Float(tup[0]);
@@ -357,6 +363,7 @@ Bbox::update(const Py::Tuple &args) {
     if (x>maxx) maxx=x;
     if (y<miny) miny=y;
     if (y>maxy) maxy=y;
+
   } 
 
 

unit/pathologies/single_point.py

@@ -1,6 +1,9 @@
 #!/usr/bin/env python
 from matplotlib.matlab import *
 
-figure(1)
+subplot(211)
 plot([0],[0],'o')
+
+subplot(212)
+plot([1],[1],'o')
 show()