def plot_windbarb(self, u, v, P=None, template=None, type="uv", bg=0):
if type == "uv":
n = numpy.ma.sqrt(u * u + v * v)
d = numpy.ma.arccos(u / n)
d = numpy.ma.where(numpy.ma.less(v, 0.0), -d, d)
if P is None:
P = u.getLevel()
if P is None:
P = u.getAxis(-1)
P = P.clone()
try: # tries to convert to Pa
for i in range(len(P)):
uni = unidata.udunits(P[i], P.units)
P[i] = uni.to("Pa").value
except Exception:
pass
P = P[:]
n1 = n / self.windbarbsscales[0]
n1 = n1.astype("i")
n2 = (n - n1 * self.windbarbsscales[0]) / self.windbarbsscales[1]
n2 = n2.astype("i")
n3 = (n - n1 * self.windbarbsscales[0] - n2 * self.windbarbsscales[1]) / self.windbarbsscales[2]
n3 = n3.astype("i")
# print 'n1:',n1
# print 'n2:',n2
# print 'n3:',n3
nitems = len(P)
for i in range(nitems):
if not (MV2.isMA(n[i])):
p = P[i]
# Figure out the altitude to plot it (y coord) !
dum, Y = self.TP2XY(273, p)
lin = self.x.createline()
lin.viewport = [template.data.x1, template.data.x2, template.data.y1, template.data.y2]
lin.worldcoordinate = [-1, 1, -1, 1]
lin.x = [0, 0]
lin.y = [-1, 1]
self.displays.append(self.x.plot(lin, bg=bg))
lin = self.x.createline()
lin.viewport = [template.data.x1, template.data.x2, template.data.y1, template.data.y2]
lin.worldcoordinate = [-1, 1, self.ymin, self.ymax]
# Set everything correctly y wise
rw = 2 / (self.ymax - self.ymin)
if self.x.islandscape():
r = 1.375
else:
r = 0.72727272
rv = (template.data.x2 - template.data.x1) / (template.data.y2 - template.data.y1)
rw = 1.0 / rw
x, y = self.make_barb(n[i], d[i], n1[i], n2[i], n3[i], rw * r * rv, Y)
lin.x = x
lin.y = y
lin.linetype = ["solid"]
self.displays.append(self.x.plot(lin, bg=bg))
class Gth(object):
def TP2XY(self, T, P):
x, y = self._TP2XY(T, P)
try:
x = float(x)
y = float(y)
except:
pass
return x, y
def XY2TP(self, X, Y):
t, p = self._XY2TP(X, Y)
try:
t = float(t)
p = float(p)
except:
pass
return t, p
def setdiagramdefs(self):
# Figures out which kind of diagram we're drawing
if self.type[:2] == 'sk':
self._TP2XY = self.TP2XYskewT
self._XY2TP = self.XY2TPskewT
elif self.type[:2] == 'em':
self._TP2XY = self.TP2XYemagram
self._XY2TP = self.XY2TPemagram
elif self.type[:2] == 'te':
self._TP2XY = self.TP2XYtephigram
self._XY2TP = self.XY2TPtephigram
elif self.type[:2] == 'st':
self._TP2XY = self.TP2XYstuve
self._XY2TP = self.XY2TPstuve
elif self.type[:2] == 'cu':
# user defined diagram
pass
else:
raise ValueError, 'Error type: ' + repr(
self.type) + ' is not a valid diagram type'
## Gets the xs for each corner
dwx1 = self.datawc_x1 + 273.16
dwx2 = self.datawc_x2 + 273.16
dwy1 = self.datawc_y1 * 100.
dwy2 = self.datawc_y2 * 100.
self.xmin, self.ymin = self.TP2XY(dwx1, dwy1)
self.xmax, dum = self.TP2XY(dwx2, dwy1)
dum, self.ymax = self.TP2XY(dwx2, dwy2)
def __del__(self):
self.x.removeobject(self._isotherms)
self.x.removeobject(self._isothermsfilled)
self.x.removeobject(self._isobars)
self.x.removeobject(self._dryadiabats)
self.x.removeobject(self._pseudoadiabats)
self.x.removeobject(self._mixingratio)
self.x.removeobject(self_line)
def __init__(self, x=None, type='skewT', name='default'):
self.displays = []
if x is None:
self.x = vcs.init()
else:
self.x = x
## if name in thermo_objects:
## raise Exception,"Error thermo object %s already exists" % name
## thermo_objects.append(name)
self.gname = 'Gth'
self._name = name
## Set some constants
self.k = 0.286
self.R = 287.04
self.cp = 1004.
## self.L=2.5E3
## World coordiantes in C/hPa
self._datawc_x1 = -25.
self._datawc_x2 = 50.
self._datawc_y1 = 1000.
self._datawc_y2 = 100.
## Skewness (for skewT)
self._skewness = -35.
## Sets the diagram type
self._type = type
self.setdiagramdefs()
## Level of detail
self._detail = 25
## Draw mixing ratio and pseudoadiabats up to
self._Pmaxmixingratio = 200
## Do we draw all the lines on the diagram ? (default, yes)
self._drawisothermsfilled = 1
self._drawisotherms = 1
self._drawisobars = 1
self._drawdryadiabats = 1
self._drawpseudoadiabats = 1
self._drawmixingratio = 1
# Creates the isolines
self._isotherms = self.x.createisoline()
self._isobars = self.x.createisoline()
self._dryadiabats = self.x.createisoline()
self._pseudoadiabats = self.x.createisoline()
self._mixingratio = self.x.createisoline()
self._isothermsfilled = self.x.createisofill()
# Isofill stuff for temperatures
self._isothermsfilled.levels = [[-200, -190], [-180,
-170], [-160, -150],
[-140, -130], [-120, -110],
[-100, -90], [-80, -70], [-60, -50],
[-40, -30], [-20, -10], [0, 10],
[20, 30], [40, 50], [60, 70], [80, 90],
[100, 110], [120, 130], [140, 150],
[160, 170], [180, 190], [200, 210]]
## self.isothermsfilled.levels=([-240.0, -200.0], [-160.0, -120.0], [-80.0, -40.0], [0.0, 40.0], [80.0, 120.0])
self._isothermsfilled.fillareacolors = [
253,
] * 50
self._isothermsfilled.xticlabels1 = {}
self._isothermsfilled.yticlabels1 = {}
# Isotherms
self._isotherms.level = list(range(-200, 200, 10))
self._isotherms.linecolors = [
249,
]
self._isotherms.line = ['solid']
self._isotherms.label = 'y'
# Isobars default settings
self._isobars.linecolors = [249]
self._isobars.line = ['solid']
self._isobars.label = 'n'
# Dry adiabatics
self._dryadiabats.label = 'y'
self._dryadiabats.linecolors = [
249,
]
self._dryadiabats.line = ['solid']
## self._dryadiabats.level=range(-40,170,10)
# Pseudoadiabatics
self._pseudoadiabats.linecolors = [
243,
]
self._pseudoadiabats.line = ['solid']
self._pseudoadiabats.label = 'y'
## self._pseudoadiabats.level=vcs.mkevenlevels(-40,40,40)
# Mixing ratio
self._mixingratio.line = ['long-dash']
self._mixingratio.linecolors = [
243,
]
self._mixingratio.level = [
.1, .2, .4, .6, .8, 1., 1.5, 2., 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12,
14, 16, 18, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 68
]
self._mixingratio.label = 'y'
# Windbarb
self._windbarbsscales = [25., 10., 5.]
# Lines for plot
self._line = self.x.createline()
def list(self):
print '----------ThermodynamicDiagrma (Gth) member (attribute) listings----------'
print 'graphic method = Gth'
print 'name =', self.name
print 'type =', self.type
if self.type[:2] == 'sk':
print 'skewness:', self.skewness
print 'detail =', self.detail
print 'datawc_x1 =', self.datawc_x1
print 'datawc_x2 =', self.datawc_x2
print 'datawc_y1 =', self.datawc_y1
print 'datawc_y2 =', self.datawc_y2
print 'Pmaxmixingratio =', self.Pmaxmixingratio
print 'isotherms =', self.isotherms.name
print 'drawisotherms =', self.drawisotherms
print 'isothermsfilled =', self.isothermsfilled.name
print 'drawisothermsfilled =', self.drawisothermsfilled
print 'isobars =', self.isobars.name
print 'drawisobars =', self.drawisobars
print 'dryadiabats =', self.dryadiabats.name
print 'drawdryadiabats =', self.drawdryadiabats
print 'pseudoadiabats =', self.pseudoadiabats.name
print 'drawpseudoadiabats =', self.drawpseudoadiabats
print 'mixingratio =', self.mixingratio.name
print 'drawmixingratio =', self.drawmixingratio
## print 'windbarbs =',self.windbarbs.name
print 'windbarbsscales =', self.windbarbsscales
print 'linecolor', self.line.color[0]
print 'linewidth', self.line.width[0]
print 'linetype', self.line.type[0]
__slots__ = [
'_TP2XY',
'_XY2TP',
## 'TP2XYskewT',
## 'TP2XYemagram',
## 'TP2XYtephigram',
## 'TP2XYstuve',
'gname',
'name',
'_name',
'displays',
'_displays',
'detail',
'_detail',
'R',
'cp',
'k',
'datawc_x1',
'datawc_x2',
'datawc_y1',
'datawc_y2',
'_datawc_x1',
'_datawc_x2',
'_datawc_y1',
'_datawc_y2',
'type',
'_type',
'xmin',
'xmax',
'ymin',
'ymax',
'x',
'Pmaxmixingratio',
'isotherms',
'drawisotherms',
'isothermsfilled',
'drawisothermsfilled',
'isobars',
'drawisobars',
'dryadiabats',
'drawdryadiabats',
'pseudoadiabats',
'drawpseudoadiabats',
'mixingratio',
'drawmixingratio',
'windbarbs',
'windbarbsscales',
'skewness',
'linecolor',
'linewidth',
'linetype',
'line',
'linecolor',
'linewidth',
'linetype',
'_Pmaxmixingratio',
'_isotherms',
'_drawisotherms',
'_isothermsfilled',
'_drawisothermsfilled',
'_isobars',
'_drawisobars',
'_dryadiabats',
'_drawdryadiabats',
'_pseudoadiabats',
'_drawpseudoadiabats',
'_mixingratio',
'_drawmixingratio',
'_windbarbs',
'_windbarbsscales',
'_skewness',
'_line',
'_linecolor',
'_linewidth',
'_linetype',
]
def _getskewness(self):
return self._skewness
def _setskewness(self, value):
VCS_validation_functions.checkName(self, 'skewness', value)
if self.type[:2] != 'sk':
raise ValueError, 'skewness can only be set for skewT type diagrams'
value = VCS_validation_functions.checkIntFloat(self, 'skewness', value)
self._skewness = value
self.setdiagramdefs()
skewness = property(_getskewness, _setskewness, None,
'Skewness of skewT diagram')
def _getwindbarbsscales(self):
return self._windbarbsscales
def _setwindbarbsscales(self, value):
value = VCS_validation_functions.checkListOfNumbers(self,
'windbarbsscales',
value,
minelements=3,
maxelements=3)
self._windbarbsscales = value
windbarbsscales = property(
_getwindbarbsscales, _setwindbarbsscales, None,
'WindBarbs scaless: Triangles, Full Barbs, Half Barb\ndefault is [25,10,5]'
)
def _getdrawpseudoadiabats(self):
return self._drawpseudoadiabats
def _setdrawpseudoadiabats(self, value):
value = VCS_validation_functions.checkOnOff(self, 'drawpseudoadiabats',
value)
self._drawpseudoadiabats = value
drawpseudoadiabats = property(
_getdrawpseudoadiabats, _setdrawpseudoadiabats, None,
'Draw the pseudo-adiabats ? (1/0) or (y/n)\nAlso called moist-adiabats'
)
def _getdrawmixingratio(self):
return self._drawmixingratio
def _setdrawmixingratio(self, value):
value = VCS_validation_functions.checkOnOff(self, 'drawmixingratio',
value)
self._drawmixingratio = value
drawmixingratio = property(
_getdrawmixingratio, _setdrawmixingratio, None,
'Draw the pseudo-adiabats ? (1/0) or (y/n)\nAlso called moist-adiabats'
)
def _getdrawdryadiabats(self):
return self._drawdryadiabats
def _setdrawdryadiabats(self, value):
value = VCS_validation_functions.checkOnOff(self, 'drawdryadiabats',
value)
self._drawdryadiabats = value
drawdryadiabats = property(_getdrawdryadiabats, _setdrawdryadiabats, None,
'Draw the dryadiabats ? (1/0) or (y/n)')
def _getdrawisobars(self):
return self._drawisobars
def _setdrawisobars(self, value):
value = VCS_validation_functions.checkOnOff(self, 'drawisobars', value)
self._drawisobars = value
drawisobars = property(_getdrawisobars, _setdrawisobars, None,
'Draw the isobars ? (1/0) or (y/n)')
def _getdrawisothermsfilled(self):
return self._drawisothermsfilled
def _setdrawisothermsfilled(self, value):
value = VCS_validation_functions.checkOnOff(self,
'drawisothermsfilled',
value)
self._drawisothermsfilled = value
drawisothermsfilled = property(
_getdrawisothermsfilled, _setdrawisothermsfilled, None,
'Draw the isothermsfilled ? (1/0) or (y/n)')
def _getdrawisotherms(self):
return self._drawisotherms
def _setdrawisotherms(self, value):
value = VCS_validation_functions.checkOnOff(self, 'drawisotherms',
value)
self._drawisotherms = value
drawisotherms = property(_getdrawisotherms, _setdrawisotherms, None,
'Draw the isotherms ? (1/0) or (y/n)')
def _getline(self):
return self._line
def _setline(self, value):
value = VCS_validation_functions.checkLine(self, 'line', value)
if isinstance(value, str):
self._line = self.x.getline(value)
else:
self._line = value
line = property(
_getline, _setline, None,
'Line graphic method to use to draw the profile\nUse line.list() to see attributes'
)
def _getlinecolor(self):
return self._line.color
def _setlinecolor(self, value):
value = VCS_validation_functions.checkColor(self, 'linecolor', value)
self._line.color = [value]
linecolor = property(
_getlinecolor, _setlinecolor, None,
'Color Line graphic method to use to draw the profile\nUse line.list() to see attributes'
)
def _getlinewidth(self):
return self._line.width
def _setlinewidth(self, value):
if not isinstance(value, (int, float, long)):
raise 'Error width must be a number'
if not 1 < value < 300:
raise 'Error width must be between 1 and 300'
self._line.width = [value]
linewidth = property(
_getlinewidth, _setlinewidth, None,
'Width Line graphic method to use to draw the profile\nUse line.list() to see attributes'
)
def _getlinetype(self):
return self._line.type
def _setlinetype(self, value):
self._line.type = [value]
linetype = property(
_getlinetype, _setlinetype, None,
'Type Line graphic method to use to draw the profile\nUse line.list() to see attributes'
)
def _getwindbarbs(self):
return self._windbarbs
def _setwindbarbs(self, value):
value = VCS_validation_functions.checkLine(self, 'windbarbs', value)
self._windbarbs = value
windbarbs = property(
_getwindbarbs, _setwindbarbs, None,
'Line graphic method to use to draw the windbarbs\nUse windbarbs.list() to see attributes'
)
def _getdryadiabats(self):
return self._dryadiabats
def _setdryadiabats(self, value):
value = VCS_validation_functions.checkIsoline(self, 'dryadiabats',
value)
self._dryadiabats = value
dryadiabats = property(
_getdryadiabats, _setdryadiabats, None,
'Isoline graphic method to use to draw the dryadiabats\nUse dryadiabats.list() to see attributes'
)
def _getpseudoadiabats(self):
return self._pseudoadiabats
def _setpseudoadiabats(self, value):
value = VCS_validation_functions.checkIsoline(self, 'pseudoadiabats',
value)
self._pseudoadiabats = value
pseudoadiabats = property(
_getpseudoadiabats, _setpseudoadiabats, None,
'Isoline graphic method to use to draw the pseudoadiabats\nUse pseudoadiabats.list() to see attributes'
)
def _getmixingratio(self):
return self._mixingratio
def _setmixingratio(self, value):
value = VCS_validation_functions.checkIsoline(self, 'mixingratio',
value)
self._mixingratio = value
mixingratio = property(
_getmixingratio, _setmixingratio, None,
'Isoline graphic method to use to draw the mixingratio\nUse mixingratio.list() to see attributes'
)
def _getisobars(self):
return self._isobars
def _setisobars(self, value):
value = VCS_validation_functions.checkIsoline(self, 'isobars', value)
self._isobars = value
isobars = property(
_getisobars, _setisobars, None,
'Isoline graphic method to use to draw the isobars\nUse isobars.list() to see attributes'
)
def _getisothermsfilled(self):
return self._isothermsfilled
def _setisothermsfilled(self, value):
value = VCS_validation_functions.checkIsofill(self, 'isothermsfilled',
value)
self._isothermsfilled = value
isothermsfilled = property(
_getisothermsfilled, _setisothermsfilled, None,
'Isofill graphic method to use to draw the isothermsfilled\nUse isothermsfilled.list() to see attributes'
)
def _getisotherms(self):
return self._isotherms
def _setisotherms(self, value):
value = VCS_validation_functions.checkIsoline(value)
self._isotherms = value
isotherms = property(
_getisotherms, _setisotherms, None,
'Isoline graphic method to use to draw the isotherms\nUse isotherms.list() to see attributes'
)
def _getPmaxmixingratio(self):
return self._Pmaxmixingratio
def _setPmaxmixingratio(self, value):
value = VCS_validation_functions.checkIntFloat(self, 'Pmaxmixingratio',
value)
self._Pmaxmixingratio = value
Pmaxmixingratio = property(
_getPmaxmixingratio, _setPmaxmixingratio, None,
'Pressure after which mixing ratio and pseudoadiats curves are not drawn anymore (hPa)'
)
def _getdetail(self):
return self._detail
def _setdetail(self, value):
value = VCS_validation_functions.checkIntFloat(self, 'detail', value)
self._detail = value
detail = property(
_getdetail, _setdetail, None,
'Smoothness of contours/graphics\nhigher value means smoother (and slower) plots'
)
def _gettype(self):
return self._type
def _settype(self, value):
VCS_validation_functions.checkName(self, 'type', value)
if not isinstance(value, str):
raise ValueError, 'Type should be a string'
value = value.lower()
if not value[:2] in ['sk', 'te', 'st', 'cu', 'em']:
raise ValueError, 'Error Thermodynamic Diagram type must skewT, Tephigram, Emmagram, Stuve or Custom'
self._type = value
self.setdiagramdefs()
type = property(
_gettype, _settype, None,
'Thermodynamic Diagram type, one of: skewT, Tephigram, Emmagram, Stuve or Custom'
)
def _getname(self):
return self._name
def _setname(self, value):
value = VCS_validation_functions.checkname(self, 'name', value)
self._name = value
name = property(_getname, _setname, None, 'Name of the Graphic method')
def _getdatawc_x1(self):
return self._datawc_x1
def _setdatawc_x1(self, value):
value = VCS_validation_functions.checkIntFloat(self, 'datawc_x1',
value)
self._datawc_x1 = value
self.setdiagramdefs()
datawc_x1 = property(_getdatawc_x1, _setdatawc_x1, None,
'Temperature of lower left corner (in C)')
def _getdatawc_x2(self):
return self._datawc_x2
def _setdatawc_x2(self, value):
value = VCS_validation_functions.checkIntFloat(self, 'datawc_x2',
value)
self._datawc_x2 = value
self.setdiagramdefs()
datawc_x2 = property(_getdatawc_x2, _setdatawc_x2, None,
'Temperature of lower right corner (in C)')
def _getdatawc_y1(self):
return self._datawc_y1
def _setdatawc_y1(self, value):
value = VCS_validation_functions.checkIntFloat(self, 'datawc_y1',
value)
self._datawc_y1 = value
self.setdiagramdefs()
datawc_y1 = property(_getdatawc_y1, _setdatawc_y1, None,
'Minimum Pressure (in hPa)')
def _getdatawc_y2(self):
return self._datawc_y2
def _setdatawc_y2(self, value):
value = VCS_validation_functions.checkIntFloat(self, 'datawc_y2',
value)
self._datawc_y2 = value
self.setdiagramdefs()
datawc_y2 = property(_getdatawc_y2, _setdatawc_y2, None,
'Maximum Pressure (in hPa)')
def _getdisplays(self):
return self._displays
def _setdisplays(self, value):
if not isinstance(value, list):
raise Exception, "displays must be a list of displays"
for v in value:
if not isinstance(v, vcs.displayplot.Dp):
raise Exception, "displays must be a list of displays"
self._displays = value
displays = property(_getdisplays, _setdisplays, None, "List of displays")
def plot_pseudo(self, template, bg):
"""
## Ok this is pathetic but i can't get it to work any other way!!!
## We'll have to do the integration for each levels
"""
levs = self.pseudoadiabats.level
levels = []
for l in levs:
levels.append(l[0])
## Ok we now have the required levels
xs = []
ys = []
xstxt = []
ystxt = []
txt = []
for il in range(len(levels)):
l = levels[il]
tmpxs = []
tmpys = []
t, p = LiftWet(l + 273.15, self.datawc_y1 * 100.,
self.Pmaxmixingratio * 100., 25000. / self.detail)
nt = len(t)
if il % 3 == 0:
crit1 = .05
crit2 = .95
elif il % 3 == 1:
crit1 = .2
crit2 = .9
elif il % 3 == 2:
crit1 = .32
crit2 = .85
for i in range(nt):
tx, ty = self.TP2XY(t[i], p[i])
tmpxs.append(tx)
tmpys.append(ty)
if ((i - 1.) / nt < crit1 < i / float(nt)) or (
(i - 1.) / nt < crit2 < i / float(nt)):
xstxt.append(tx)
ystxt.append(ty)
txt.append(str(l))
xs.append(tmpxs)
ys.append(tmpys)
l = self.x.createline()
l.color = self.pseudoadiabats.linecolors[0]
l.viewport = [
template.data.x1, template.data.x2, template.data.y1,
template.data.y2
]
l.worldcoordinate = [self.xmin, self.xmax, self.ymin, self.ymax]
l.x = xs
l.y = ys
self.displays.append(self.x.plot(l, bg=bg))
t = self.x.createtext()
t.viewport = [
template.data.x1, template.data.x2, template.data.y1,
template.data.y2
]
t.worldcoordinate = [self.xmin, self.xmax, self.ymin, self.ymax]
t.color = l.color[0]
t.x = xstxt
t.y = ystxt
t.string = txt
t.height = 10
self.displays.append(self.x.plot(t, bg=bg))
def clear(self):
self.displays = []
self.x.clear()
def plot_TP(self, T, P=None, template=None, bg=0):
if template is None:
template = 'thdiags_template'
elif not isinstance(template, str):
template = template.name
try:
isotemplate = self.x.createtemplate(template)
except:
isotemplate = self.x.gettemplate(template)
self.plotIsos(template, bg=bg)
if P is None:
P = getPvalues(T)
while T.rank() > 1:
T = T[0]
xs = []
ys = []
for i in range(len(T)):
t = T[i]
p = P[i]
tx, ty = self.TP2XY(t, p)
try:
tx = float(tx)
ty = float(ty)
if numpy.ma.is_masked(tx) or numpy.ma.is_masked(
ty) or numpy.isnan(tx) or numpy.isnan(
ty) or numpy.isinf(tx) or numpy.isinf(ty):
raise ValueError
xs.append(tx)
ys.append(ty)
except:
pass
## if not(MV2.isMA(tx) or MV2.isMA(ty)):
## xs.append(tx)
## ys.append(ty)
## else:
## print tx,ty,t,p
## xs.append(tx)
## ys.append(ty)
if xs == [] and ys == []:
for d in self.displays:
d.off = 1
self.x.remove_display_name(d.name)
for i in range(len(self.displays)):
self.displays.pop(-1)
raise Exception, "Error: data are all out of range!"
ierr = 1
iso = self.x.createline()
iso.type = self.line.type
iso.width = self.line.width
iso.color = self.line.color
iso.worldcoordinate = [self.xmin, self.xmax, self.ymin, self.ymax]
iso.viewport = [
isotemplate.data.x1, isotemplate.data.x2, isotemplate.data.y1,
isotemplate.data.y2
]
iso.x = xs
iso.y = ys
iso.priority = 3
self.displays.append(self.x.plot(iso, bg=bg))
return
def setIso(self, iso, values=None):
iso.datawc_x1 = self.xmin
iso.datawc_x2 = self.xmax
iso.datawc_y1 = self.ymin
iso.datawc_y2 = self.ymax
if not values is None:
if iso.g_name == 'Gi':
iso.level = values
col = [
iso.linecolors[0],
] * len(values)
iso.linecolors = col
iso.line = [
iso.line[0],
] * len(values)
if iso.text is None:
iso.text = [
1,
] * len(values)
else:
iso.text = [
iso.text[0],
] * len(values)
iso.textcolors = col
else:
col = [
iso.fillareacolors[0],
] * len(values)
iso.fillareacolors = col
iso.levels = values
return
def plotIsos(self, template=None, bg=0):
if template is None:
template = 'thdiags_template'
elif type(template) != type(''):
template = template.name
try:
isotemplate = self.x.createtemplate(template)
except:
isotemplate = self.x.gettemplate(template)
att = dir(isotemplate)
for a in att:
try:
b = getattr(isotemplate, a)
setattr(b, 'priority', 0)
except:
pass
isotemplate.data.priority = 1
isotemplate.box1.priority = 1
isotemplate.box1.x1 = isotemplate.data.x1
isotemplate.box1.x2 = isotemplate.data.x2
isotemplate.box1.y1 = isotemplate.data.y1
isotemplate.box1.y2 = isotemplate.data.y2
dX = self.xmax - self.xmin
dY = self.ymax - self.ymin
X = numpy.ma.arange(self.detail, dtype=MV2.float)
X = X * dX / (self.detail - 1) + self.xmin
Xaxis = cdms2.createAxis(X)
X = numpy.ma.resize(X, (self.detail, self.detail))
Y = numpy.ma.arange(self.detail, dtype=MV2.float)
Y = Y * dY / (self.detail - 1) + self.ymin
Yaxis = cdms2.createAxis(Y)
Y = numpy.ma.resize(Y, (self.detail, self.detail))
Y = numpy.ma.transpose(Y)
# Computes T,P on this grid
T, P = self.XY2TP(X, Y)
T = MV2.array(T)
# Potential Temperature
Tp = T / numpy.ma.power(P / 100000., self.k)
ws = Ws(T, P)
# Seems like we need not ws after 600mb
ws = numpy.ma.masked_where(
numpy.ma.less(P, self.Pmaxmixingratio * 100.), ws)
T = T - 273.16
Tmin, Tmax = vcs.minmax(T)
Tvalues = self.isotherms.level
if Tvalues == [[0.0, 1.0000000200408773e+20]]:
Tvalues = vcs.mkscale(Tmin, Tmax)
## Now sets the isothermsfilled
Tvalues2 = []
for i in range(len(Tvalues) / 2 - 1):
t1, t2 = Tvalues[2 * i], Tvalues[2 * i + 1]
if isinstance(t1, (list, tuple)):
t1, t2 = t1[0], t2[0]
Tvalues2.append([t1, t2])
else:
Tvalues2 = self.isothermsfilled.levels
self.setIso(self.isotherms, Tvalues)
## self.setIso(self.isothermsfilled,Tvalues2)
P = P / 100.
Pvalues = vcs.mkscale(self.datawc_y2, self.datawc_y1)
self.setIso(self.isobars, Pvalues)
Tp = Tp - 273.16
Tpvalues = self.dryadiabats.level
if Tpvalues == [[0.0, 1.0000000200408773e+20]]:
min, max = vcs.minmax(Tp)
Tpvalues = vcs.mkscale(min, max)
self.setIso(self.dryadiabats, Tpvalues)
## Pseudoadiabats
Thevalues = self.pseudoadiabats.level
if Thevalues == [[0.0, 1.0000000200408773e+20]]:
Thevalues = vcs.mkevenlevels(-40, 40, 40)
self.setIso(self.pseudoadiabats, Thevalues)
## Mixing Ratio
ws = ws * 1000.
wsvalues = self.mixingratio.level
if wsvalues == [[0.0, 1.0000000200408773e+20]]:
min, max = vcs.minmax(ws)
wsvalues = vcs.mkscale(min, max)
self.setIso(self.mixingratio, wsvalues)
# Figures out where to plot the P labels
dicP = {}
dicPl = vcs.mklabels(Pvalues)
for p in Pvalues:
X, Y = self.TP2XY(self.datawc_x1 + 273.15, p * 100)
if not numpy.ma.isMA(X):
dicP[Y] = dicPl[p]
try:
ttp = self.x.createtexttable('Plabels')
except:
ttp = self.x.gettexttable('Plabels')
ttp.color = self.isobars.linecolors[0]
isotemplate.ylabel1.texttable = ttp
dicT = {}
Tvalues = list(numpy.ma.array(Tvalues).filled().ravel())
dicTl = vcs.mklabels(Tvalues)
for t in Tvalues:
X, Y = self.TP2XY(t + 273.15, self.datawc_y1 * 100)
dicT[X] = dicTl[t]
try:
ttp = self.x.createtexttable('Tlabels')
except:
ttp = self.x.gettexttable('Tlabels')
ttp.color = self.isotherms.linecolors[0]
isotemplate.xlabel1.texttable = ttp
isotemplate.ylabel1.priority = 1
isotemplate.xlabel1.priority = 1
isotemplate.data.x1 = isotemplate.data.x1
isotemplate.data.x2 = isotemplate.data.x2
isotemplate.data.y1 = isotemplate.data.y1
isotemplate.data.y2 = isotemplate.data.y2
self.isotherms.yticlabels1 = dicP
self.isotherms.xticlabels1 = dicT
self.isobars.yticlabels1 = {}
self.isobars.xticlabels1 = {}
self.dryadiabats.yticlabels1 = {}
self.dryadiabats.xticlabels1 = {}
self.pseudoadiabats.yticlabels1 = {}
self.pseudoadiabats.xticlabels1 = {}
self.mixingratio.yticlabels1 = {}
self.mixingratio.xticlabels1 = {}
self.isothermsfilled.datawc_x1 = self.isothermsfilled.datawc_x1
self.isothermsfilled.datawc_x2 = self.isothermsfilled.datawc_x2
self.isothermsfilled.datawc_y1 = self.isothermsfilled.datawc_y1
self.isothermsfilled.datawc_x2 = self.isothermsfilled.datawc_y2
# Puts the dims on it
T.id = 'T'
T.setAxis(0, Yaxis)
T.setAxis(1, Xaxis)
P = MV2.array(P)
P.id = 'P'
P.setAxis(0, Yaxis)
P.setAxis(1, Xaxis)
Tp = MV2.array(Tp)
Tp.setAxis(0, Yaxis)
Tp.setAxis(1, Xaxis)
ws = MV2.array(ws)
ws.setAxis(0, Yaxis)
ws.setAxis(1, Xaxis)
# plot if self.drawisothermsfilled:
if self.drawisothermsfilled:
self.displays.append(
self.x.plot(T, isotemplate, self.isothermsfilled, bg=bg))
if self.drawisotherms:
self.displays.append(
self.x.plot(T, isotemplate, self.isotherms, bg=bg))
if self.drawisobars:
self.displays.append(
self.x.plot(P, isotemplate, self.isobars, bg=bg))
if self.drawdryadiabats:
self.displays.append(
self.x.plot(Tp, isotemplate, self.dryadiabats, bg=bg))
if self.drawpseudoadiabats:
self.plot_pseudo(isotemplate, bg=bg)
if self.drawmixingratio:
self.displays.append(
self.x.plot(ws, isotemplate, self.mixingratio, bg=bg))
return
## All take args with T in K and P in Pa
# SkewT-LogP diagram defs
def TP2XYskewT(self, T, P):
X = T + self.skewness * numpy.ma.log(P)
Y = -self.R * numpy.ma.log(P)
return X, Y
def XY2TPskewT(self, X, Y):
P = numpy.ma.exp(-Y / self.R)
T = X - self.skewness * numpy.ma.log(P)
return T, P
# Emagram defs
def TP2XYemagram(self, T, P):
X = T
Y = -self.R * numpy.ma.log(P)
return X, Y
def XY2TPemagram(self, X, Y):
T = X
P = numpy.ma.exp(-Y / self.R)
return T, P
#Tephigram defs
def TP2XYtephigram(self, T, P):
X = T
Tp = T / numpy.ma.power(P / 100000., self.k)
Y = self.cp * numpy.ma.log(Tp)
return X, Y
def XY2TPtephigram(self, X, Y):
T = X
Tp = numpy.ma.exp(Y / self.cp)
P = 100000. * numpy.ma.power(T / Tp, 1. / self.k)
return T, P
#Stuve diagram defs
def TP2XYstuve(self, T, P):
X = T
Y = numpy.ma.power(P, self.k)
return X, Y
def XY2TPstuve(self, X, Y):
T = X
P = numpy.ma.power(Y, 1. / self.k)
return T, P
def plot_windbarb(self, u, v, P=None, template=None, type='uv', bg=0):
if type == 'uv':
n = numpy.ma.sqrt(u * u + v * v)
d = numpy.ma.arccos(u / n)
d = numpy.ma.where(numpy.ma.less(v, 0.), -d, d)
if P is None:
P = u.getLevel()
if P is None:
P = u.getAxis(-1)
P = P.clone()
try: # tries to convert to Pa
for i in range(len(P)):
uni = unidata.udunits(P[i], P.units)
P[i] = uni.to("Pa").value
except Exception, err:
pass
P = P[:]
n1 = n / self.windbarbsscales[0]
n1 = n1.astype('i')
n2 = (n - n1 * self.windbarbsscales[0]) / self.windbarbsscales[1]
n2 = n2.astype('i')
n3 = (n - n1 * self.windbarbsscales[0] -
n2 * self.windbarbsscales[1]) / self.windbarbsscales[2]
n3 = n3.astype('i')
## print 'n1:',n1
## print 'n2:',n2
## print 'n3:',n3
nitems = len(P)
for i in range(nitems):
if not (MV2.isMA(n[i])):
p = P[i]
## Figure out the altitude to plot it (y coord) !
dum, Y = self.TP2XY(273, p)
lin = self.x.createline()
lin.viewport = [
template.data.x1, template.data.x2, template.data.y1,
template.data.y2
]
lin.worldcoordinate = [-1, 1, -1, 1]
lin.x = [0, 0]
lin.y = [-1, 1]
self.displays.append(self.x.plot(lin, bg=bg))
lin = self.x.createline()
lin.viewport = [
template.data.x1, template.data.x2, template.data.y1,
template.data.y2
]
lin.worldcoordinate = [-1, 1, self.ymin, self.ymax]
## Set everything correctly y wise
rw = 2 / (self.ymax - self.ymin)
if self.x.islandscape():
r = 1.375
else:
r = .72727272
rv = (template.data.x2 -
template.data.x1) / (template.data.y2 - template.data.y1)
rw = 1. / rw
x, y = self.make_barb(n[i], d[i], n1[i], n2[i], n3[i],
rw * r * rv, Y)
lin.x = x
lin.y = y
linetype = ['solid']
self.displays.append(self.x.plot(lin, bg=bg))
def plot_windbarb(self, u, v, P=None, template=None, type='uv', bg=0):
if type == 'uv':
n = numpy.ma.sqrt(u * u + v * v)
d = numpy.ma.arccos(u / n)
d = numpy.ma.where(numpy.ma.less(v, 0.), -d, d)
if P is None:
P = u.getLevel()
if P is None:
P = u.getAxis(-1)
P = P.clone()
try: # tries to convert to Pa
for i in range(len(P)):
uni = unidata.udunits(P[i], P.units)
P[i] = uni.to("Pa").value
except Exception:
pass
P = P[:]
n1 = n / self.windbarbsscales[0]
n1 = n1.astype('i')
n2 = (n - n1 * self.windbarbsscales[0]) / self.windbarbsscales[1]
n2 = n2.astype('i')
n3 = (n - n1 * self.windbarbsscales[0] -
n2 * self.windbarbsscales[1]) / self.windbarbsscales[2]
n3 = n3.astype('i')
# print 'n1:',n1
# print 'n2:',n2
# print 'n3:',n3
nitems = len(P)
for i in range(nitems):
if not (MV2.isMA(n[i])):
p = P[i]
# Figure out the altitude to plot it (y coord) !
dum, Y = self.TP2XY(273, p)
lin = self.x.createline()
lin.viewport = [
template.data.x1, template.data.x2, template.data.y1,
template.data.y2
]
lin.worldcoordinate = [-1, 1, -1, 1]
lin.x = [0, 0]
lin.y = [-1, 1]
self.displays.append(self.x.plot(lin, bg=bg))
lin = self.x.createline()
lin.viewport = [
template.data.x1, template.data.x2, template.data.y1,
template.data.y2
]
lin.worldcoordinate = [-1, 1, self.ymin, self.ymax]
# Set everything correctly y wise
rw = 2 / (self.ymax - self.ymin)
if self.x.islandscape():
r = 1.375
else:
r = .72727272
rv = (template.data.x2 -
template.data.x1) / (template.data.y2 - template.data.y1)
rw = 1. / rw
x, y = self.make_barb(n[i], d[i], n1[i], n2[i], n3[i],
rw * r * rv, Y)
lin.x = x
lin.y = y
lin.type = ['solid']
self.displays.append(self.x.plot(lin, bg=bg))