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# Copyright (c) 1996, 1997, The Regents of the University of California.
# All rights reserved. See Legal.htm for full text and disclaimer.
# The following is so I know about arrays:
from Numeric import *
from scipy_base.fastumath import *
from shapetest import *
from graftypes import *
class Region :
"""
r = Region ( <keyword arguments> ) is used to specify graphing modes
for regions in a QuadMesh plot. If a QuadMesh contains one or more
Region objects, then a Plotter, when asked to plot it, will plot
only the regions specified.
The keyword arguments are:
number = <integer> the number of the Region being specified.
boundary = 0/1 0: plot entire mesh; 1: plot only the boundary of
the selected region. if ktype and ltype are not "none",
then the boundary will be plotted, then the k and l lines
with their own types.
boundary_type, boundary_color: these matter only if boundary = 1,
and tell how the boundary will be plotted and what its color
will be.
inhibit = 0/1/2 1: do not plot the (x [, j], y [, j]) lines;
2: do not plot the (x [i, ], y[i, ]) lines.
levels = optional two-dimensional sequences of floating point
values. If present, a list of the values of z at which you
want contours.
filled = 0/1 If 1, plot a filled mesh using the values of z.
If z is not present, the mesh zones will be filled with the
background color, which allows plotting of a wire frame.
edges, if nonzero when filled=1, draw a solid edge around
each zone.
contours = 0/1 together with filled, controls whether you get
filled contours or just contours, or no contours at all.
z_scale = "lin", "log", or "normal" as for QuadMesh.
vectors = 0/1 allows the user to choose whether or not to
plot vx and vy on this region.
ktype, ltype: can have the same values as type, and allow the
k and l mesh lines to be plotted differently.
#### eventually, we can add kcolor, lcolor, kwidth, lwidth ####
type, color, width, label, hide, marks, marker as for
curves.
"""
def type (self) :
return RegionType
_RegionSpecError = "RegionSpecError"
def __init__ ( self , *kwds , **keywords ) :
if len (kwds) == 1 :
keywords = kwds[0]
if not keywords.has_key ( "number" ) :
raise _RegionSpecError, "Region number not specified!"
self.number = keywords ["number"]
if keywords.has_key ("boundary") :
self.boundary = keywords ["boundary"]
else :
self.boundary = 0
if keywords.has_key ("boundary_type") :
self.boundary_type = keywords ["boundary_type"]
else :
self.boundary_type = "solid"
if keywords.has_key ("boundary_color") :
self.boundary_color = keywords ["boundary_color"]
else :
self.boundary_color = "fg"
if keywords.has_key ("inhibit") :
self.inhibit = keywords ["inhibit"]
else :
self.inhibit = 0
if keywords.has_key ("label") :
self.label = keywords ["label"]
else :
self.label = " "
if keywords.has_key ("hide") :
self.hide = keywords ["hide"]
else :
self.hide = 0
if self.boundary == 1 :
self.line_type = "none"
else :
self.line_type = "solid"
if keywords.has_key ("type") :
self.line_type = keywords ["type"]
if keywords.has_key ("ktype") :
self.ktype = keywords ["ktype"]
else :
self.ktype = self.line_type
if keywords.has_key ("ltype") :
self.ltype = keywords ["ltype"]
else :
self.ltype = self.line_type
if keywords.has_key ("width") :
self.width = keywords ["width"]
else :
self.width = 1
if keywords.has_key ("color") :
self.color = keywords ["color"]
else :
self.color = "fg"
if keywords.has_key ("filled") :
self.filled = keywords ["filled"]
else :
self.filled = 0
if keywords.has_key ("edges") :
self.edges = keywords ["edges"]
else :
self.edges = 0
if keywords.has_key ("vectors") :
self.vectors = keywords ["vectors"]
else :
self.vectors = 1
if keywords.has_key ("contours") :
self.contours = keywords ["contours"]
elif self.filled == 0 and self.edges == 0 and self.vectors == 0 :
self.contours = 1
else :
self.contours = 0
if keywords.has_key ("z_scale") :
self.z_scale = keywords ["z_scale"]
else :
self.z_scale = "lin"
if keywords.has_key ("ewidth") :
self.ewidth = keywords ["ewidth"]
else :
self.ewidth = 1
if keywords.has_key ("ecolor") :
self.ecolor = keywords ["ecolor"]
else :
self.ecolor = "fg"
if keywords.has_key ("levels") :
self.levels = keywords ["levels"]
else :
self.levels = None
if keywords.has_key ("marks") :
self.marks = keywords ["marks"]
else :
self.marks = 0
if keywords.has_key ( "marker" ) :
self.marker = keywords [ "marker" ]
else :
self.marker = "unspecified"
def new ( self, ** keywords ) :
""" new (...keyword arguments...) allows you to reuse a
previously existing Region.
"""
self.__init__ ( keywords )
def set ( self , ** keywords ) :
""" set (...keyword arguments...) allows you to set individual
Region characteristics. No error checking is done.
"""
for k in keywords.keys ():
if k == "type" :
self.line_type = keywords ["type"]
else :
setattr (self, k, keywords [k])
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