<div dir="ltr"><div>Upgrade to version 2.1+ and use the alpha channel when creating colors. <br><br></div>Jeff<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Aug 5, 2015 at 12:15 PM, Chorley Weather <span dir="ltr"><<a href="mailto:weatherstu@chorleyweather.com" target="_blank">weatherstu@chorleyweather.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 05-08-2015 16:09, Stephen McMillan wrote:<br>
> Stuart,<br>
> 1. Display first variable then save to an image file<br>
> 2. Clear screen, then display second variable<br>
> 3. Save to another file using first file as background (-b option)<br>
> and specify an appropriate transparent color (-t option)<br>
><br>
> Resulting saved map should be without the rough, pixelated edges<br>
><br>
> Stephen Mc<br>
><br>
> On Wed, Aug 5, 2015 at 10:04 AM, Chorley Weather<br>
> <<a href="mailto:weatherstu@chorleyweather.com">weatherstu@chorleyweather.com</a>> wrote:<br>
><br>
>> Hi guys,<br>
>><br>
>> I have been trying to combine two shaded variables in one image,<br>
>> for<br>
>> example precip & cloud cover. I have tried the maskout function but<br>
>> the<br>
>> output looks to rough and pixelated. Can anybody suggest a better<br>
>> way to<br>
>> get a smoother result.<br>
>><br>
>> Many thanks in advance<br>
>> Stuart.<br>
>><br>
>> --<br>
>> Chief Forecaster & Owner<br>
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><br>
><br>
><br>
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Thanks Stephen, I will have a go at that cheers.<br>
<span class="HOEnZb"><font color="#888888">--<br>
Chief Forecaster & Owner<br>
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</font></span></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature">Jeff Duda<br>Graduate research assistant<br>University of Oklahoma School of Meteorology<br>Center for Analysis and Prediction of Storms<br></div>
</div>