Changes between Version 13 and Version 14 of Processing/PixelSize

Timestamp:

Mar 14, 2014, 10:25:25 AM (11 years ago)

Author:

stgo

Comment:

--

Processing/PixelSize

@@ -3 +3 @@
 == Quick reckoner ==
 
-This graph gives the theoretical pixel size at nadir for Eagle and Hawk. Pixel size will be larger at the edges of the swath, so at least to start with you should use a slightly higher value than that given by this graph. Also note that this is primarily across-track pixel size, along-track will vary with the speed of the aircraft. We suggest that most users should use square pixels based on the across-track pixel size, but see the note below regarding along-track pixel sizes.
+This graph gives the theoretical pixel size at nadir for Eagle, Hawk and Fenix. Pixel size will be larger at the edges of the swath, so at least to start with you should use a slightly higher value than that given by this graph. Also note that this is primarily across-track pixel size, along-track will vary with the speed of the aircraft. We suggest that most users should use square pixels based on the across-track pixel size, but see the note below regarding along-track pixel sizes.
 
 This javascript calculator will give the exact value for pixel size given an altitude using the formula from the graph below
@@ -9 +9 @@
 [http://arsf-dan.nerc.ac.uk/pixelsize/pixelsize.html Pixel size (and swath width) calculator]
 
-[[Image(pixelsizegraph.png)]]
+[[Image(pixelsizegraph.png, 640px)]]
 
 Note this is the altitude over the ground, not the altitude from GPS (which is over the spheroid and takes no account of local terrain variation).