Hi Nyall,
Great idea to improve those random colors! This could also be a function
instead of a palette in my opinion. I even guess it already is, since I
think qgis stopped using very dark random colors a while ago.
I think those colors should be:
- not too dark (too close to black)
- not too close to grey
- not bright yellow, since this is the selection color
Another thought here, for polygons I find myself changing the standard
black outline to a darker and opaque version of the fill color. And
often I prefer using a transparent fill color cause it makes it much
easier to viewing results on the background map. Could this be the
default or an option?
Or should I just wait for qgis 3.2 and add create a palette for this? :)
Regards,
Raymond
On 03-02-18 05:17, Nyall Dawson wrote:
On 2 February 2018 at 21:52, Richard Duivenvoorde <[email protected]> wrote:
Somebody (Raymond ;-) ) 'complained' to me that running a processing
algorithm everytime comes up with an (ugly) brown style.
I've noticed this too - but had assumed it was just some setting I'd
changed locally. It's fixed by https://github.com/qgis/QGIS/pull/6254
BUT
Coincidentally, Mathieu and I have been speaking this week about
approaches to improve the random colors picked for layers. We came up
with a similar approach:
- find a palette of ~100 colors which we think look good for layers,
and remove gross colors from this
- include this palette as an additional pre-installed color palette
within the standard QGIS install
- on startup, pick a random starting color from this list and a random
direction (forward or backward). When adding layers, grab this color
for the layer and then jump to the next/previous color in the preset
palette for the next layer added.
- (for 3.2 : allow users to pick which palette to use for new layer colors)
How's this sound? I'd love to address this for 3.0 - our default
random color selection often picks yuck colors, and I think it'd be
great if 3.0 "magically" produced nicer looking maps for users without
any work required by them!
Nyall
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