Timeline for Making heat map transparent in QGIS?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 5, 2021 at 10:00 | history | edited | Babel | CC BY-SA 4.0 |
added 348 characters in body
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| Sep 11, 2019 at 14:36 | comment | added | Babel | See also this video for a critical approach to heatmaps: media.ccc.de/v/… | |
| Sep 11, 2019 at 14:33 | comment | added | Babel | If you want to create a raster-layer heatmap, there are different interpolation tools - check the toolbox for "heatmap" or "interpolation" (algorithms for inverse distance wight, kerndel density estimation etc. | |
| Sep 11, 2019 at 14:27 | comment | added | LostInSpace | Ah I see by selecting DISCRETE rather than continuous for heatmaps does 'isobars'. Good stuff | |
| Sep 11, 2019 at 14:26 | comment | added | Babel | If you created the heatmap from from CSV values, that means you have a point-layer that has rendering-style "heatmap" - it's thus a vector-layer, not a raster layer, but rendered in a raster-like style. In this case, however, most of my suggestions don't work the same way - transparency-tab e.g. does not exist in the layer properties. You can still set a global layer-transpyrency, use different layer-blending modes etc. Also try different color-ramps and just set transparency manually to the colors you want to suppress (as you suggested) | |
| Sep 11, 2019 at 13:52 | comment | added | LostInSpace | Babel, I am not entirely sure here if my heat map is a raster layer or not (that's how much of a beginner I am!). It was generated from a layer of CSV values, then by choosing Heatap rather than the default 'Single Symbol'. If a vector heat map were possible, something like a weather map's isobars I would be very interested in that. | |
| Sep 11, 2019 at 13:49 | vote | accept | LostInSpace | ||
| Sep 11, 2019 at 8:23 | history | answered | Babel | CC BY-SA 4.0 |