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-rwxr-xr-xastro/fitscube.py16
1 files changed, 9 insertions, 7 deletions
diff --git a/astro/fitscube.py b/astro/fitscube.py
index d6bc986..0f2224a 100755
--- a/astro/fitscube.py
+++ b/astro/fitscube.py
@@ -65,22 +65,24 @@ class FITSCube:
def add_slices(self, infiles, zbegin=0.0, zstep=1.0):
"""
Create a FITS cube from input image slices.
+
+ NOTE: The infiles should be sorted appropriately.
"""
self.infiles = infiles
self.zbegin = zbegin
self.zstep = zstep
- nslice = len(infiles)
+ N = len(infiles)
+ zvalues = zbegin + zstep * np.arange(N)
header, image = self.open_image(infiles[0])
- shape = (nslice, ) + image.shape
- data = np.zeros(shape, dtype=image.dtype)
- for i, fn in enumerate(infiles):
- print("[%d/%d] Adding image slice: %s ..." % (i+1, nslice, fn))
+ height, width = image.shape
+ data = np.zeros((N, height, width), dtype=image.dtype)
+ for i, (z, fn) in enumerate(zip(zvalues, infiles)):
+ print("[%2d/%2d] slice @ %s: %s ..." % (i+1, N, z, fn))
hdr, img = self.open_image(fn)
data[i, :, :] = img
self.data = data
self.header = header.copy(strip=True)
- print("Created FITS cube of dimensions: %dx%dx%d" %
- (self.width, self.height, self.nslice))
+ print("Cube dimension: %dx%dx%d" % (width, height, N))
@staticmethod
def open_image(infile):