绘制GDAL栅格数据的matplotlib Basemap选区

Question

我有一段来自here的代码，用于绘制geotiff图像（Landsat）：

from mpl_toolkits.basemap import Basemap
from osgeo import osr, gdal
import matplotlib.pyplot as plt
import numpy as np

# Read the data and metadata
ds = gdal.Open(filename)

data = ds.ReadAsArray()
gt = ds.GetGeoTransform()
proj = ds.GetProjection()

xres = gt[1]
yres = gt[5]

# get the edge coordinates and add half the resolution 
# to go to center coordinates
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

ds = None

# create a grid of xy coordinates in the original projection
xy_source = np.mgrid[xmin:xmax+xres:xres, ymax+yres:ymin:yres]
# Create the figure and basemap object
m = Basemap(projection='robin', lon_0=0, resolution='c')

# Create the projection objects for the convertion
inproj = osr.SpatialReference()
inproj.ImportFromWkt(proj)

# Get the target projection from the basemap object
outproj = osr.SpatialReference()
outproj.ImportFromProj4(m.proj4string)

size = xy_source[0,:,:].size
ct = osr.CoordinateTransformation(inproj, outproj)
xy_target = np.array(ct.TransformPoints(xy_source.reshape(2, size).T))

但是，它在ct.TransformPoints(xy_source.reshape(2, size).T))失败了，我不知道为什么。它给我的错误是：

TypeError: in method 'CoordinateTransformation_TransformPoints', argument 1 of type 'OSRCoordinateTransformationShadow *'

我不明白。有OSR专家在吗？在

谢谢你的阅读。在

编辑1my.TIFF的投影

^{pr2}$

还有

>>> m.proj4string
Out[43]: '+lon_0=0.0 +y_0=8615499.05007 +R=6370997.0 +proj=robin +x_0=16986796.165 +units=m '

Answer 1

{cd1>安装包的解决方案是^。否则，osr无法理解输入投影。在

conda install -c https://conda.binstar.org/jgomezdans proj4