>> The term "pixel" has several different uses.
>> In computer graphics it often refers to individual picture cells or color elements in a raster graphic format such as PNG or JPEG.
The first term is the one I am thinking of.
>> Do you really want to set individual PNG picture cells
Yes
>> Your reference to "reg->land(lat, lon)" appears to be a data grid reference.
>> This implies that you are working at the data cell level, not the image cell level.
reg->land is an array of 178 by 139 mask bits.
I would like a PNG that is coloured for the mask bits and background for the unmasked bits.
I had hoped this would be easier than plotting a contour map, trimming the default text, then resizing to 178, 139. I can do this, but it appears to be an ugly implementation.
It is possible that I am thinking about this process at too low a level.
Thanks,
Griff Young.
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Received on Sun Feb 12 14:22:38 2012
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