def make_kml(llcrnrlon, llcrnrlat, urcrnrlon, urcrnrlat,
figs, colorbar=None, **kw):
"""TODO: LatLon bbox, list of figs, optional colorbar figure,
and several simplekml kw..."""
kml = Kml()
altitude = kw.pop('altitude', 1e0) #2e7)
roll = kw.pop('roll', 0)
tilt = kw.pop('tilt', 0)
altitudemode = kw.pop('altitudemode', AltitudeMode.relativetoground)
camera = Camera(latitude=np.mean([urcrnrlat, llcrnrlat]),
longitude=np.mean([urcrnrlon, llcrnrlon]),
altitude=altitude, roll=roll, tilt=tilt,
altitudemode=altitudemode)
kml.document.camera = camera
draworder = 0
for fig in figs: # NOTE: Overlays are limited to the same bbox.
draworder += 1
ground = kml.newgroundoverlay(name='GroundOverlay')
ground.draworder = draworder
ground.visibility = kw.pop('visibility', 1)
ground.name = kw.pop('name', 'overlay')
#ground.color = kw.pop('color', '9effffff') ##kw.pop('color', '9effffff')
ground.atomauthor = kw.pop('author', 'PyHum')
ground.latlonbox.rotation = kw.pop('rotation', 0)
ground.description = kw.pop('description', 'Matplotlib figure')
ground.gxaltitudemode = kw.pop('gxaltitudemode',
'clampToSeaFloor')
ground.icon.href = fig
ground.latlonbox.east = llcrnrlon
ground.latlonbox.south = llcrnrlat
ground.latlonbox.north = urcrnrlat
ground.latlonbox.west = urcrnrlon
if colorbar: # Options for colorbar are hard-coded (to avoid a big mess).
screen = kml.newscreenoverlay(name='ScreenOverlay')
screen.icon.href = colorbar
screen.overlayxy = OverlayXY(x=0, y=0,
xunits=Units.fraction,
yunits=Units.fraction)
screen.screenxy = ScreenXY(x=0.015, y=0.075,
xunits=Units.fraction,
yunits=Units.fraction)
screen.rotationXY = RotationXY(x=0.5, y=0.5,
xunits=Units.fraction,
yunits=Units.fraction)
screen.size.x = 0
screen.size.y = 0
screen.size.xunits = Units.fraction
screen.size.yunits = Units.fraction
screen.visibility = 1
kmzfile = kw.pop('kmzfile', 'overlay.kmz')
kml.savekmz(kmzfile)
def make_kml(llcrnrlon, llcrnrlat, urcrnrlon, urcrnrlat,
figs, colorbar=None, times=None, **kw):
"""
TODO: LatLon bbox, list of figs, optional colorbar figure,
and several simplekml kw...
TJL - Obtained from
http://ocefpaf.github.io/python4oceanographers/blog/2014/03/10/gearth/
"""
if not SIMPLEKML_FLAG:
print '***ERROR!***'
print 'simplekml not installed, download from',\
'https://pypi.python.org/pypi/simplekml/'
return
kml = Kml()
altitude = kw.pop('altitude', 2e7)
roll = kw.pop('roll', 0)
tilt = kw.pop('tilt', 0)
altitudemode = kw.pop('altitudemode', AltitudeMode.relativetoground)
camera = Camera(latitude=np.mean([urcrnrlat, llcrnrlat]),
longitude=np.mean([urcrnrlon, llcrnrlon]),
altitude=altitude, roll=roll, tilt=tilt,
altitudemode=altitudemode)
kml.document.camera = camera
draworder = 0
for fig in figs: #NOTE: Overlays are limited to the same bbox.
draworder += 1
ground = kml.newgroundoverlay(name='GroundOverlay')
ground.draworder = draworder
ground.visibility = kw.pop('visibility', 1)
ground.name = kw.pop('name', 'overlay')
ground.color = kw.pop('color', '9effffff')
ground.atomauthor = kw.pop('author', 'ocefpaf')
ground.latlonbox.rotation = kw.pop('rotation', 0)
ground.description = kw.pop('description', 'Matplotlib figure')
ground.gxaltitudemode = kw.pop('gxaltitudemode',
'clampToSeaFloor')
if times:
ground.timespan.begin = times[0]
ground.timespan.end = times[1]
ground.icon.href = fig
#TJL - swapping west/east to match LL vs. UR properly
ground.latlonbox.west = llcrnrlon
ground.latlonbox.south = llcrnrlat
ground.latlonbox.north = urcrnrlat
ground.latlonbox.east = urcrnrlon
if colorbar: # Options for colorbar are hard-coded (to avoid a big mess).
screen = kml.newscreenoverlay(name='ScreenOverlay')
screen.icon.href = colorbar
screen.overlayxy = OverlayXY(x=0, y=0,
xunits=Units.fraction,
yunits=Units.fraction)
screen.screenxy = ScreenXY(x=0.015, y=0.075,
xunits=Units.fraction,
yunits=Units.fraction)
screen.rotationXY = RotationXY(x=0.5, y=0.5,
xunits=Units.fraction,
yunits=Units.fraction)
screen.size.x = 0
screen.size.y = 0
screen.size.xunits = Units.fraction
screen.size.yunits = Units.fraction
screen.visibility = 1
kmzfile = kw.pop('kmzfile', 'overlay.kmz')
kml.savekmz(kmzfile)
def make_kml(llcrnrlon,
llcrnrlat,
urcrnrlon,
urcrnrlat,
figs,
tim,
colorbar=None,
**kw):
"""TODO: LatLon bbox, list of figs, optional colorbar figure,
and several simplekml kw..."""
kml = Kml()
altitude = kw.pop('altitude', 2e7)
roll = kw.pop('roll', 0)
tilt = kw.pop('tilt', 0)
altitudemode = kw.pop('altitudemode', AltitudeMode.relativetoground)
camera = Camera(latitude=np.mean([urcrnrlat, llcrnrlat]),
longitude=np.mean([urcrnrlon, llcrnrlon]),
altitude=altitude,
roll=roll,
tilt=tilt,
altitudemode=altitudemode)
author = kw.pop('author', 'ocefpaf')
rotation = kw.pop('rotation', 0)
description = kw.pop('description', 'Matplotlib figure')
name = kw.pop('name', 'overlay')
gxaltitudemode = kw.pop('gxaltitudemode', 'clampToSeaFloor')
visibility = kw.pop('visibility', 1)
kml.document.camera = camera
kml.document.description = description
kml.document.author = author
draworder = 0
for fig in figs: # NOTE: Overlays are limited to the same bbox.
begin = str(datetime.utcfromtimestamp(tim[draworder]))
end = str(datetime.utcfromtimestamp(tim[draworder + 1]))
ground = kml.document.newgroundoverlay(name=name + " at " + begin)
print(ground.name)
#ground.draworder = draworder
ground.visibility = visibility
ground.gxaltitudemode = gxaltitudemode
ground.timespan.begin = begin
ground.timespan.end = end
ground.icon.href = fig
# this below is not working for some reason
#ground.icon.RefreshMode = RefreshMode.oninterval
#ground.icon.refreshInterval = 300
#ground.icon.viewRefreshMode = ViewRefreshMode.onstop
#ground.icon.viewRefreshTime = 2
#ground.icon.viewBoundScale = 0.85
ground.latlonbox.rotation = rotation
ground.latlonbox.east = llcrnrlon
ground.latlonbox.south = llcrnrlat
ground.latlonbox.north = urcrnrlat
ground.latlonbox.west = urcrnrlon
draworder += 1
if colorbar: # Options for colorbar are hard-coded (to avoid a big mess).
screen = kml.newscreenoverlay(name='Legend')
screen.icon.href = colorbar
screen.overlayxy = OverlayXY(x=0,
y=0,
xunits=Units.fraction,
yunits=Units.fraction)
screen.screenxy = ScreenXY(x=0.015,
y=0.075,
xunits=Units.fraction,
yunits=Units.fraction)
screen.rotationXY = RotationXY(x=0.5,
y=0.5,
xunits=Units.fraction,
yunits=Units.fraction)
screen.size.x = 0
screen.size.y = 0
screen.size.xunits = Units.fraction
screen.size.yunits = Units.fraction
screen.visibility = 1
kmzfile = kw.pop('kmzfile', 'overlay.kmz')
kml.savekmz(kmzfile)
return kml
def make_kml(extent, figs, colorbar=None, **kw):
"""
Parameters
----------
extent : tuple
(lm,lM,Lm,LM)
lower left corner longitude
upper right corner longitude
lower left corner Latitude
upper right corner Latitude
altitude : float
altitudemode :
roll : float
tilt : float
visibility : int
"""
lm = extent[0]
lM = extent[1]
Lm = extent[2]
LM = extent[3]
kml = Kml()
altitude = kw.pop('altitude', 2e6)
roll = kw.pop('roll', 0)
tilt = kw.pop('tilt', 0)
altitudemode = kw.pop('altitudemode', AltitudeMode.relativetoground)
camera = Camera(latitude=np.mean([Lm, LM]),
longitude=np.mean([lm, lM]),
altitude=altitude,
roll=roll,
tilt=tilt,
altitudemode=altitudemode)
kml.document.camera = camera
draworder = 0
for fig in figs: # NOTE: Overlays are limited to the same bbox.
draworder += 1
ground = kml.newgroundoverlay(name='GroundOverlay')
ground.draworder = draworder
ground.visibility = kw.pop('visibility', 1)
ground.name = kw.pop('name', 'overlay')
ground.color = kw.pop('color', '9effffff')
ground.atomauthor = kw.pop('author', 'author')
ground.latlonbox.rotation = kw.pop('rotation', 0)
ground.description = kw.pop('description', 'matplotlib figure')
ground.gxaltitudemode = kw.pop('gxaltitudemode', 'clampToSeaFloor')
ground.icon.href = fig
ground.latlonbox.east = lM
ground.latlonbox.south = Lm
ground.latlonbox.north = LM
ground.latlonbox.west = lm
if colorbar: # Options for colorbar are hard-coded (to avoid a big mess).
screen = kml.newscreenoverlay(name='ScreenOverlay')
screen.icon.href = colorbar
screen.overlayxy = OverlayXY(x=0,
y=0,
xunits=Units.fraction,
yunits=Units.fraction)
screen.screenxy = ScreenXY(x=0.015,
y=0.075,
xunits=Units.fraction,
yunits=Units.fraction)
screen.rotationXY = RotationXY(x=0.5,
y=0.5,
xunits=Units.fraction,
yunits=Units.fraction)
screen.size.x = 0
screen.size.y = 0
screen.size.xunits = Units.fraction
screen.size.yunits = Units.fraction
screen.visibility = 1
kmzfile = kw.pop('kmzfile', 'overlay.kmz')
kml.savekmz(kmzfile)
kml = Kml(name="Overlays", open=1)
# GroundOverlay
ground = kml.newgroundoverlay(name='GroundOverlay Test')
ground.icon.href = 'http://simplekml.googlecode.com/hg/samples/resources/smile.png'
ground.gxlatlonquad.coords = [(18.410524, -33.903972), (18.411429, -33.904171),
(18.411757, -33.902944), (18.410850, -33.902767)]
# or
#ground.latlonbox.north = -33.902828
#ground.latlonbox.south = -33.904104
#ground.latlonbox.east = 18.410684
#ground.latlonbox.west = 18.411633
#ground.latlonbox.rotation = -14
# ScreenOverlay
screen = kml.newscreenoverlay(name='ScreenOverlay Test')
screen.icon.href = 'http://simplekml.googlecode.com/hg/samples/resources/simplekml-logo.png'
screen.overlayxy = OverlayXY(x=0,
y=1,
xunits=Units.fraction,
yunits=Units.fraction)
screen.screenxy = ScreenXY(x=15,
y=15,
xunits=Units.pixels,
yunits=Units.insetpixels)
screen.size.x = -1
screen.size.y = -1
screen.size.xunits = Units.fraction
screen.size.yunits = Units.fraction
# PhotoOverlay
def makeKML(llcrnrlon,
llcrnrlat,
urcrnrlon,
urcrnrlat,
figs,
colorbar=None,
**kw):
"""
Borrowed from https://ocefpaf.github.io/python4oceanographers/blog/2014/03/10/gearth/
This function creates a Google KMZ file for use in Google Earth. It accepts as input
the filename(s) of the figure(s) to be converted, along with the bounding lat/lon.
The option to include multiple figures would be useful if one were to split a single
figure (perhaps containing contours and vectors) into separate layers in the KMZ
(i.e., plot the contours and vectors as different figures).
Parameters
----------
llcrnrlon, llcrnrlat, urcrnrlon, urcrnrlat : floats
Floats specifying the extent of the figure in lat/lon degrees.
figs : tuple
Tuple of figure file names to be included in output.
colorbar : string, optional
If supplied, provides filename of colorbar figure
"""
kml = Kml()
altitude = kw.pop('altitude', 640000)
roll = kw.pop('roll', 0)
tilt = kw.pop('tilt', 0)
altitudemode = kw.pop('altitudemode', AltitudeMode.relativetoground)
camera = Camera(latitude=np.mean([urcrnrlat, llcrnrlat]),
longitude=np.mean([urcrnrlon, llcrnrlon]),
altitude=altitude,
roll=roll,
tilt=tilt,
altitudemode=altitudemode)
kml.document.camera = camera
draworder = 0
for fig in figs: # NOTE: Overlays are limited to the same bbox.
draworder += 1
ground = kml.newgroundoverlay(name='GroundOverlay')
ground.draworder = draworder
ground.visibility = kw.pop('visibility', 1)
ground.name = kw.pop('name', 'overlay')
ground.color = kw.pop('color', '9effffff')
ground.atomauthor = kw.pop('author', 'ocefpaf')
ground.latlonbox.rotation = kw.pop('rotation', 0)
ground.description = kw.pop('description', 'Matplotlib figure')
ground.gxaltitudemode = kw.pop('gxaltitudemode', 'clampToSeaFloor')
ground.icon.href = fig
ground.latlonbox.east = llcrnrlon
ground.latlonbox.south = llcrnrlat
ground.latlonbox.north = urcrnrlat
ground.latlonbox.west = urcrnrlon
if colorbar: # Options for colorbar are hard-coded (to avoid a big mess).
screen = kml.newscreenoverlay(name='ScreenOverlay')
screen.icon.href = colorbar
screen.overlayxy = OverlayXY(x=0,
y=0,
xunits=Units.fraction,
yunits=Units.fraction)
screen.screenxy = ScreenXY(x=0.015,
y=0.075,
xunits=Units.fraction,
yunits=Units.fraction)
screen.rotationXY = RotationXY(x=0.5,
y=0.5,
xunits=Units.fraction,
yunits=Units.fraction)
screen.size.x = 0
screen.size.y = 0
screen.size.xunits = Units.fraction
screen.size.yunits = Units.fraction
screen.visibility = 1
kmzfile = kw.pop('kmzfile', 'overlay.kmz')
kml.savekmz(kmzfile)
kml = Kml(name="Overlays", open=1) # GroundOverlay ground = kml.newgroundoverlay(name='GroundOverlay Test') ground.icon.href = 'http://simplekml.googlecode.com/hg/samples/resources/smile.png' ground.gxlatlonquad.coords = [(18.410524,-33.903972),(18.411429,-33.904171),(18.411757,-33.902944),(18.410850,-33.902767)] # or #ground.latlonbox.north = -33.902828 #ground.latlonbox.south = -33.904104 #ground.latlonbox.east = 18.410684 #ground.latlonbox.west = 18.411633 #ground.latlonbox.rotation = -14 # ScreenOverlay screen = kml.newscreenoverlay(name='ScreenOverlay Test') screen.icon.href = 'http://simplekml.googlecode.com/hg/samples/resources/simplekml-logo.png' screen.overlayxy = OverlayXY(x=0,y=1,xunits=Units.fraction,yunits=Units.fraction) screen.screenxy = ScreenXY(x=15,y=15,xunits=Units.pixel,yunits=Units.insetpixels) screen.size.x = -1 screen.size.y = -1 screen.size.xunits = Units.fraction screen.size.yunits = Units.fraction # PhotoOverlay photo = kml.newphotooverlay(name='PhotoOverlay Test') photo.camera = Camera(longitude=18.410858, latitude=-33.904446, altitude=50, altitudemode=AltitudeMode.clamptoground) photo.point.coords = [(18.410858,-33.90444)] photo.iconstyle.icon.href = 'http://maps.google.com/mapfiles/kml/shapes/camera.png' photo.icon.href = 'http://simplekml.googlecode.com/hg/samples/resources/stadium.jpg' photo.viewvolume = ViewVolume(-25,25,-15,15,1)
def make_kml(extent,figs,colorbar=None, **kw):
"""
Parameters
----------
extent : tuple
(lm,lM,Lm,LM)
lower left corner longitude
upper right corner longitude
lower left corner Latitude
upper right corner Latitude
altitude : float
altitudemode :
roll : float
tilt : float
visibility : int
"""
lm = extent[0]
lM = extent[1]
Lm = extent[2]
LM = extent[3]
kml = Kml()
altitude = kw.pop('altitude', 2e6)
roll = kw.pop('roll', 0)
tilt = kw.pop('tilt', 0)
altitudemode = kw.pop('altitudemode', AltitudeMode.relativetoground)
camera = Camera(latitude = np.mean([Lm, LM]),
longitude = np.mean([lm, lM]),
altitude = altitude,
roll=roll,
tilt=tilt,
altitudemode=altitudemode)
kml.document.camera = camera
draworder = 0
for fig in figs: # NOTE: Overlays are limited to the same bbox.
draworder += 1
ground = kml.newgroundoverlay(name='GroundOverlay')
ground.draworder = draworder
ground.visibility = kw.pop('visibility', 1)
ground.name = kw.pop('name', 'overlay')
ground.color = kw.pop('color', '9effffff')
ground.atomauthor = kw.pop('author', 'author')
ground.latlonbox.rotation = kw.pop('rotation', 0)
ground.description = kw.pop('description', 'matplotlib figure')
ground.gxaltitudemode = kw.pop('gxaltitudemode', 'clampToSeaFloor')
ground.icon.href = fig
ground.latlonbox.east = lM
ground.latlonbox.south = Lm
ground.latlonbox.north = LM
ground.latlonbox.west = lm
if colorbar: # Options for colorbar are hard-coded (to avoid a big mess).
screen = kml.newscreenoverlay(name='ScreenOverlay')
screen.icon.href = colorbar
screen.overlayxy = OverlayXY(x=0, y=0,
xunits=Units.fraction,
yunits=Units.fraction)
screen.screenxy = ScreenXY(x=0.015, y=0.075,
xunits=Units.fraction,
yunits=Units.fraction)
screen.rotationXY = RotationXY(x=0.5, y=0.5,
xunits=Units.fraction,
yunits=Units.fraction)
screen.size.x = 0
screen.size.y = 0
screen.size.xunits = Units.fraction
screen.size.yunits = Units.fraction
screen.visibility = 1
kmzfile = kw.pop('kmzfile', 'overlay.kmz')
kml.savekmz(kmzfile)
def make_kml(location,
period,
llcrnrlon,
llcrnrlat,
urcrnrlon,
urcrnrlat,
figs,
colorbar=None,
**kw):
"""TODO: LatLon bbox, list of figs, optional colorbar figure, and several simplekml kw..."""
kml = Kml()
altitude = kw.pop('altitude', 2e5)
roll = kw.pop('roll', 0)
tilt = kw.pop('tilt', 0)
altitudemode = kw.pop('altitudemode', AltitudeMode.relativetoground)
camera = Camera(latitude=np.mean([urcrnrlat, llcrnrlat]),
longitude=np.mean([urcrnrlon, llcrnrlon]),
altitude=altitude,
roll=roll,
tilt=tilt,
altitudemode=altitudemode)
kml.document.camera = camera
draworder = 0
loc_names = {
'BOG': 'Bogota D.C. y Alrededores',
'COL': 'Republica de Colombia'
}
str_period = kw['name']
for fig in figs: # NOTE: Overlays are limited to the same bbox.
draworder += 1
ground = kml.newgroundoverlay(name='GroundOverlay')
ground.draworder = draworder
ground.visibility = kw.pop('visibility', 1)
ground.name = kw.pop('name', 'overlay')
ground.color = kw.pop('color', '9effffff')
ground.atomauthor = kw.pop('author', 'jchavarro')
ground.latlonbox.rotation = kw.pop('rotation', 0)
ground.description = kw.pop(
'description', 'Densidad de Descargas Electricas en {} <br />'
'Periodo: {} <br />'
'Red Linet/Keraunos Suministrado IDEAM <br />'
'Elaborado por: OSPA - IDEAM <br /><br />'
'<img src="http://bart.ideam.gov.co/portal/prono_fin_semana/ospa/logo/logos.png" alt="picture" width="151" height="25" align="left" />'
'<br /><br />'.format(loc_names[location], str_period))
ground.gxaltitudemode = kw.pop('gxaltitudemode', 'clampToSeaFloor')
ground.icon.href = fig
ground.latlonbox.east = llcrnrlon
ground.latlonbox.south = llcrnrlat
ground.latlonbox.north = urcrnrlat
ground.latlonbox.west = urcrnrlon
if colorbar: # Options for colorbar are hard-coded (to avoid a big mess).
screen = kml.newscreenoverlay(name='ScreenOverlay')
screen.icon.href = colorbar
screen.overlayxy = OverlayXY(x=0,
y=0,
xunits=Units.fraction,
yunits=Units.fraction)
screen.screenxy = ScreenXY(x=0.015,
y=0.075,
xunits=Units.fraction,
yunits=Units.fraction)
screen.rotationXY = RotationXY(x=0.5,
y=0.5,
xunits=Units.fraction,
yunits=Units.fraction)
screen.size.x = 0
screen.size.y = 0
screen.size.xunits = Units.fraction
screen.size.yunits = Units.fraction
screen.visibility = 1
kmzfile = kw.pop('kmzfile', 'overlay.kmz')
kml.savekmz(kmzfile)
def nparray_to_kml(input_array,
out_name,
ncol=ncol,
nrow=nrow,
xll=xll,
yll=yll,
cellsize=np.mean([delc, delr]),
colorbar=None,
**kw):
from osgeo import gdal, osr
from mpl_toolkits.basemap import Basemap
from simplekml import (Kml, OverlayXY, ScreenXY, Units, RotationXY,
AltitudeMode, Camera)
# turn the numpy array into an asc raster in UTM zone 2S
the_asc = os.path.join(workspace, "{}.asc".format(out_name))
np.savetxt(the_asc, input_array)
new_first = (
'NCOLS {}\n' # these are the parameters for the .asc file
'NROWS {}\n'
'XLLCENTER {}\n'
'YLLCENTER {}\n'
'CELLSIZE {}\n'
'NODATA_value -999.0\n'.format(ncol, nrow, xll, yll,
np.mean([delc, delr])))
with open(the_asc, 'r+') as file: # add in new first line and save file
file_data = file.read()
file.seek(0, 0)
file.write(new_first + '\n' + file_data)
# turn the new .asc file into a geo-tiff
the_tif = os.path.join(workspace, "{}.tif".format(out_name))
in_raster = gdal.Open(the_asc)
gdal.Warp(the_tif,
in_raster,
srcSRS='EPSG:{}'.format(model_epsg),
dstSRS='EPSG:4326')
# plotting function to plot and format the tif into a Gearth image that doesnt look like crap
# Note This plotting function is clunky and not very good, but it is the best example I could find so far, probably should do better
# One of its main issues is that it reads the data upside down and it needs to be flipped with a command, obviously something is wrong
# from https://gis.stackexchange.com/questions/184727/plotting-raster-maps-in-python
the_png = os.path.join(workspace, "{}.png".format(out_name))
ds = gdal.Open(the_tif) # tif file in
data = ds.ReadAsArray()
data = np.flipud(data) # this is where that sketchy data flip happens
gt = ds.GetGeoTransform()
proj = ds.GetProjection()
xres = gt[1]
yres = gt[5]
xmin = gt[0] + xres * 0.5
xmax = gt[0] + (xres * ds.RasterXSize) - xres * 0.5
ymin = gt[3] + (yres * ds.RasterYSize) + yres * 0.5
ymax = gt[3] - yres * 0.5
x_center = (xmin + xmax) / 2
y_center = (ymin + ymax) / 2
m = Basemap(llcrnrlon=xmin,
llcrnrlat=ymin,
urcrnrlon=xmax,
urcrnrlat=ymax,
projection='merc',
lat_0=y_center,
lon_0=x_center)
x = np.linspace(0, m.urcrnrx, data.shape[1])
y = np.linspace(0, m.urcrnry, data.shape[0])
xx, yy = np.meshgrid(x, y)
# create the igure object scaled for google earth from https://ocefpaf.github.io/python4oceanographers/blog/2014/03/10/gearth/
aspect = np.cos(np.mean([ymin, ymax]) * np.pi / 180.0)
xsize = np.ptp([xmax, xmin]) * aspect
ysize = np.ptp([ymax, ymin])
aspect = ysize / xsize
if aspect > 1.0:
figsize = (10.0 / aspect, 10.0)
else:
figsize = (10.0, 10.0 * aspect)
if False:
plt.ioff() # Make `True` to prevent the KML components from poping-up.
fig = plt.figure(figsize=figsize, frameon=False, dpi=1024 // 10)
# KML friendly image. If using basemap try: `fix_aspect=False`.
ax = fig.add_axes([0, 0, 1, 1])
ax.set_xlim(xmin, xmax)
ax.set_ylim(ymin, ymax)
cs = m.pcolormesh(
xx, yy, data, cmap=plt.cm.jet
) # alpha = .9) ######################## make a cmap option
fig.savefig(the_png, transparent=False, format='png', dpi=600)
# this is the save KML overlay part, there are some options in here that can be changed for visualization stuff
# from https://ocefpaf.github.io/python4oceanographers/blog/2014/03/10/gearth/
the_kml = os.path.join(workspace, "{}.kmz".format(out_name))
kml = Kml()
altitude = kw.pop('altitude', 2e4)
roll = kw.pop('roll', 0)
tilt = kw.pop('tilt', 0)
altitudemode = kw.pop('altitudemode', AltitudeMode.relativetoground)
camera = Camera(latitude=np.mean([ymax, ymin]),
longitude=np.mean([xmax, xmin]),
altitude=altitude,
roll=roll,
tilt=tilt,
altitudemode=altitudemode)
kml.document.camera = camera
draworder = 0
for fig in [the_png]: # NOTE: Overlays are limited to the same bbox.
draworder += 1
ground = kml.newgroundoverlay(name='GroundOverlay')
ground.draworder = draworder
ground.visibility = kw.pop('visibility', 1)
ground.name = kw.pop('name', 'overlay')
ground.color = kw.pop('color', '9effffff')
ground.atomauthor = kw.pop('author', 'ocefpaf')
ground.latlonbox.rotation = kw.pop('rotation', 0)
ground.description = kw.pop('description', 'Matplotlib figure')
ground.gxaltitudemode = kw.pop('gxaltitudemode', 'clampToSeaFloor')
ground.icon.href = fig
ground.latlonbox.east = xmin
ground.latlonbox.south = ymin
ground.latlonbox.north = ymax
ground.latlonbox.west = xmax
# now make a legend for the kml file
the_ledg = os.path.join(workspace, "legend_{}.png".format(out_name))
fig = plt.figure(figsize=(1.5, 4.0), facecolor=None, frameon=False)
ax = fig.add_axes([0.0, 0.05, 0.2, 0.9])
cb = fig.colorbar(cs, cax=ax)
cb.set_label(out_name, rotation=-90, color='k', labelpad=20)
fig.savefig(
the_ledg, transparent=True, format='png'
) # Change transparent to True if your colorbar is not on space :)
screen = kml.newscreenoverlay(name='ScreenOverlay')
screen.icon.href = the_ledg
screen.overlayxy = OverlayXY(x=0,
y=0,
xunits=Units.fraction,
yunits=Units.fraction)
screen.screenxy = ScreenXY(x=0.015,
y=0.075,
xunits=Units.fraction,
yunits=Units.fraction)
screen.rotationXY = RotationXY(x=0.5,
y=0.5,
xunits=Units.fraction,
yunits=Units.fraction)
screen.size.x = 0
screen.size.y = 0
screen.size.xunits = Units.fraction
screen.size.yunits = Units.fraction
screen.visibility = 1
kmzfile = kw.pop('kmzfile', the_kml)
kml.savekmz(kmzfile)
def make_kml(llcrnrlon,
llcrnrlat,
urcrnrlon,
urcrnrlat,
figs,
colorbar=None,
times=None,
**kw):
"""
TODO: LatLon bbox, list of figs, optional colorbar figure,
and several simplekml kw ...
TJL - Obtained from
http://ocefpaf.github.io/python4oceanographers/blog/2014/03/10/gearth/
"""
if not SIMPLEKML_FLAG:
print('***ERROR!***')
print('simplekml not installed, download from',
'https://pypi.python.org/pypi/simplekml/')
return
kml = Kml()
altitude = kw.pop('altitude', 2e7)
roll = kw.pop('roll', 0)
tilt = kw.pop('tilt', 0)
altitudemode = kw.pop('altitudemode', AltitudeMode.relativetoground)
camera = Camera(latitude=np.mean([urcrnrlat, llcrnrlat]),
longitude=np.mean([urcrnrlon, llcrnrlon]),
altitude=altitude,
roll=roll,
tilt=tilt,
altitudemode=altitudemode)
kml.document.camera = camera
draworder = 0
for fig in figs: # NOTE: Overlays are limited to the same bbox.
draworder += 1
ground = kml.newgroundoverlay(name='GroundOverlay')
ground.draworder = draworder
ground.visibility = kw.pop('visibility', 1)
ground.name = kw.pop('name', 'overlay')
ground.color = kw.pop('color', '9effffff')
ground.atomauthor = kw.pop('author', 'ocefpaf')
ground.latlonbox.rotation = kw.pop('rotation', 0)
ground.description = kw.pop('description', 'Matplotlib figure')
ground.gxaltitudemode = kw.pop('gxaltitudemode', 'clampToSeaFloor')
if times:
ground.timespan.begin = times[0]
ground.timespan.end = times[1]
ground.icon.href = fig
# TJL - swapping west/east to match LL vs. UR properly
ground.latlonbox.west = llcrnrlon
ground.latlonbox.south = llcrnrlat
ground.latlonbox.north = urcrnrlat
ground.latlonbox.east = urcrnrlon
if colorbar: # Options for colorbar are hard-coded (to avoid a big mess).
screen = kml.newscreenoverlay(name='ScreenOverlay')
screen.icon.href = colorbar
screen.overlayxy = OverlayXY(x=0,
y=0,
xunits=Units.fraction,
yunits=Units.fraction)
screen.screenxy = ScreenXY(x=0.015,
y=0.075,
xunits=Units.fraction,
yunits=Units.fraction)
screen.rotationXY = RotationXY(x=0.5,
y=0.5,
xunits=Units.fraction,
yunits=Units.fraction)
screen.size.x = 0
screen.size.y = 0
screen.size.xunits = Units.fraction
screen.size.yunits = Units.fraction
screen.visibility = 1
kmzfile = kw.pop('kmzfile', 'overlay.kmz')
kml.savekmz(kmzfile)
