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#3520 new task

colorize vector layers in GUI by default

Reported by:	martinl	Owned by:	grass-dev@…
Priority:	normal	Milestone:	7.8.3
Component:	wxGUI	Version:	unspecified
Keywords:	vector, colors	Cc:
CPU:	Unspecified	Platform:	Unspecified

Description (last modified by martinl)

I added to GUI preferences new option to enable random colors for vector map layers (GUI Preferences -> Layers).

Attachments (1)

vect-randomColors.png (5.7 KB ) - added by martinl 7 years ago.

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Change History (13)

by martinl, 7 years ago

Attachment:	vect-randomColors.png added

comment:1 by martinl, 7 years ago

Description:	modified (diff)
Milestone:	→ 7.6.0

comment:2 by martinl, 7 years ago

Description:	modified (diff)

comment:3 by martinl, 7 years ago

Currently this option is disabled. For next main release 7.6 I would suggest to enable it by default. Reasons:

all vector maps displayed in black feature and grey area fill color
most of users perform colorization after adding new layers to map display
colorization based on categories does not really influence display speed so much, simple test below

$ v.info parcely -t | grep 'area'
areas=362508

$ time d.vect parcely

real	0m15.764s

$ time d.vect parcely -c
d.vect complete.  

real	0m15.533s

What do you think?

follow-up: 5 comment:4 by wenzeslaus, 7 years ago

I agree that the current default is not ideal. Preferred behavior probably depends on the use case, but -c as default is quite different from what everybody else does (so potentially it is unexpected): loading each vector layer to map display with different single color versus different color for each feature in the vector map/layer. I think it is a great checkbox, just not sure if it should be enabled by default.

in reply to: 4 comment:5 by martinl, 7 years ago

Replying to wenzeslaus:

I agree that the current default is not ideal. Preferred behavior probably depends on the use case, but -c as default is quite different from what everybody else does (so potentially it is unexpected): loading each vector layer to map display with different single color versus different color for each feature in the vector map/layer. I think it is a great checkbox, just not sure if it should be enabled by default.

You are right, -c shouldn't be enabled by default. After some testing I can say that it's messy in many cases (point layers for example). I am leaving this ticket open in order to implement new GUI settings to colorize map layers (not features) similarly as other software do.