Project 1811 gdal_question - geopaparazzi/Spatialite-Tasks-with-Sql-Scripts GitHub Wiki

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--> 'Answer to question 1: Can I create a transparent GeoTIFF like PNG with alpha channel ?'

--> 'Answer to question 2: Can I used gdal_rasterize to draw shape over the GeoTIFF with transparency'

--> 'Answer to question 3: Can I read a part of the GeoTIFF using GDALRasterIO and write as PNG with the same transparency preserved.'

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Message: 1
Date: Wed, 10 Jun 2015 07:48:15 +0530
From: Gane R <[email protected]>
To: [email protected]
Subject: [gdal-dev] Creating a transparent GeoTIFF, writing shape data
        over it, reading GeoTIFF writing as PNG with transparency.
Message-ID:
        <CALMrLdAk6eLYvgYpaSDyT2OjqnJtCQn2LCKGOyhSLgJ6vXuyBA@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

1. Can I create a transparent GeoTIFF like PNG with alpha channel ?

2. Can I used gdal_rasterize to draw shape over the GeoTIFF with
tranparency

3. Can I read a part of the GeoTIFF using GDALRasterIO and write as PNG
with the same transparency preserved.

Say some kind of work flow with gdal command line tools will be of great
help.

Gane

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2015-06-11: Mark Johnson, Berlin Germany

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