File:Penang Island heightmap ASTGTM2 N05E100 dem.png

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Description
English: A heightmap of Penang Island and surrounding islands with contour discontinuities every 100 m, plotted from ASTER Global Digital Elevation Model data at http://step.esa.int/auxdata/dem/SRTMGL1 and coloured as follows:
  • Alpha channel: Height of 0 m (sea level) is fully transparent, otherwise fully opaque
  • Green channel: Height normalised from 0 m (value 0) to 816 m (value 255)
  • Red channel: Height in metres modulo 100
  • Blue channel: Height in metres divided by 100, then floored
Hence, each point's blue value * 100 + red value gives its height in metres.
Source Own work
Author Cmglee
Other versions
Penang south Kedah heightmap ASTGTM2 N05E100 dem.png
Penang island.stl

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I, the copyright holder of this work, hereby publish it under the following licenses:
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GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
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Date/TimeThumbnailDimensionsUserComment
current23:00, 18 October 2013Thumbnail for version as of 23:00, 18 October 2013620 × 930 (351 KB)Cmglee (talk | contribs)Update to decimal version where Height in m = 100 × Blue + Red
22:32, 18 October 2013Thumbnail for version as of 22:32, 18 October 2013620 × 930 (336 KB)Cmglee (talk | contribs){{Information |Description ={{en|1=A heightmap of Penang Island and surrounding islands plotted from data from the ASTER GDEM system at http://gdem.ersdac.jspacesystems.or.jp/download.jsp and coloured as follows: * Alpha channel: Height of 0 m (sea...

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