<div dir="auto">You can also try the “Mask” plugin for more control. <div><a href="https://plugins.qgis.org/plugins/mask/">https://plugins.qgis.org/plugins/mask/</a></div></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, 6 Dec 2021 at 7:43 PM, DelazJ <<a href="mailto:delazj@gmail.com">delazj@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div dir="ltr"><div>Hi,</div><div>And here's the feature in the changelog (<a href="https://qgis.org/en/site/forusers/visualchangelog322/index.html#feature-data-defined-raster-layer-opacity" target="_blank">https://qgis.org/en/site/forusers/visualchangelog322/index.html#feature-data-defined-raster-layer-opacity</a>); afaict, it affects the whole layer and not pixel by pixel.</div><div><br></div><div>On a kind-of "off topic" request, I'd also be interested to see examples of expressions playing with raster functions.</div><div><br></div><div>Regards,</div><div>Harrissou<br></div></div><br><div class="gmail_quote"></div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Le lun. 6 déc. 2021 à 13:32, Johannes Kröger (WhereGroup) <<a href="mailto:johannes.kroeger@wheregroup.com" target="_blank">johannes.kroeger@wheregroup.com</a>> a écrit :<br></div></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"></blockquote></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">Anything that you can do with expressions, in this case to get a number <br>
between 0 and 100, but it will always affect the whole layer globally. <br>
You can not set a different opacity for different regions. For this, <br>
approaches like Ujaval's suggestion are probably the best way.<br>
<br>
Cheers<br>
Hannes<br>
<br>
> I'd still really like to know what can be done using an expression for <br>
> the Global Opacity of a raster layer. <br>
<br>
-- <br>
Johannes Kröger / GIS-Entwickler/-Berater<br>
WhereGroup GmbH<br>
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<br>
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<br></blockquote></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">
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</blockquote></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div></div><div><table cellpadding="0" cellspacing="0" style="border-spacing:0px;border-collapse:collapse;color:rgb(68,68,68);width:480px;font-size:10pt;font-family:Arial,sans-serif;line-height:normal"><tbody><tr><td valign="top" style="padding:10px 0px 12px;width:160px;vertical-align:top"><a href="https://spatialthoughts.com/" style="background-color:transparent;color:rgb(51,122,183)" target="_blank"><img border="0" alt="Logo" width="141" src="https://spatialthoughts685850346.files.wordpress.com/2019/12/spatial_thoughts_logo.png" style="border:0px;vertical-align:middle;width:141px;height:auto"></a></td><td style="padding:6px 0px;width:320px"><table cellpadding="0" cellspacing="0" style="border-spacing:0px;border-collapse:collapse;background-color:transparent"><tbody><tr><td style="padding:0px;font-size:12pt;font-family:Arial,sans-serif;font-weight:bold;color:rgb(61,60,63)"><span style="color:rgb(0,175,239)">Ujaval Gandhi</span></td></tr><tr><td style="padding:0px 0px 11px;font-size:10pt;font-family:Arial,sans-serif;color:rgb(61,60,63)"><span style="color:rgb(0,175,239)">Spatial Thoughts</span></td></tr><tr><td style="padding:0px;font-size:10pt;font-family:Arial,sans-serif;color:rgb(155,155,155)"><span>mobile: +91-8095684687</span></td></tr><tr><td style="padding:0px;font-size:10pt;font-family:Arial,sans-serif;color:rgb(155,155,155)"><span>email: </span><span style="color:rgb(23,147,210)"><a href="mailto:ujaval@spatialthoughts.com" target="_blank">ujaval@spatialthoughts.com</a></span></td></tr><tr><td style="padding:6px 0px 0px"><span style="display:inline-block;height:22px"><span><a href="https://www.linkedin.com/in/spatialthoughts/" style="background-color:transparent;color:rgb(51,122,183)" target="_blank"><img alt="LinkedIn icon" border="0" width="23" height="23" src="https://codetwocdn.azureedge.net/images/mail-signatures/generator/elegant-logo/ln.png" style="border:0px;vertical-align:middle;height:20px;width:20px"></a>  </span><span><a href="https://twitter.com/spatialthoughts" style="background-color:transparent;color:rgb(51,122,183)" target="_blank"><img alt="Twitter icon" border="0" width="23" height="23" src="https://codetwocdn.azureedge.net/images/mail-signatures/generator/elegant-logo/tt.png" style="border:0px;vertical-align:middle;height:20px;width:20px"></a>  </span></span></td></tr></tbody></table></td></tr><tr><td colspan="2" style="padding:8px 0px 0px;border-top:1px solid rgb(23,147,210);width:480px;font-family:Arial,sans-serif;color:rgb(155,155,155);text-align:justify"></td></tr></tbody></table><br></div></div></div></div></div></div></div></div></div></div></div>