Overlapping nodes, color invertion problem

Bug #1255169 reported by Cojnel
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Inkscape
Triaged
Low
Unassigned

Bug Description

When two nodes overlap they look smaller than a single node,
and when they are selected they disappear.

It seams to be caused by the nodes stroke color being the inverse of the color below it,
when two nodes overlap their stroke color cancel each other out.

It seams to happen when an even number of nodes are overlapping,
three overlapping nodes are displayed the same way as a single node.

When one selects two overlapping nodes,
both the stroke and the fill of the nodes almost cancel each other out.

If one puts a 50% gray background behind the two overlapping nodes,
then the node looks yellow with a very low opacity,
on a white or black background the node is pretty much invisible.

here's an image with the different states and background colors
of single and two overlapping nodes.

(image attached in comment #5 below)

Tested with:
v0.48.4,
r12830,
and r12837
on linux mint 15 cinnamon 32bit

Cojnel (cojnel)
description: updated
su_v (suv-lp)
tags: added: node-editing ui
Revision history for this message
jazzynico (jazzynico) wrote :

Reproduced on Crunchbang Waldorf (a Debian stable based distro) with Inkscape 0.48.3.1 and trunk revision 12832.

Changed in inkscape:
importance: Undecided → Low
status: New → Triaged
Revision history for this message
jazzynico (jazzynico) wrote :
Revision history for this message
Cojnel (cojnel) wrote :

The same thing happens with the node handle end points.

When 2 of them overlap over a white or black background the end points disappear,
but on a 50% gray background they seam to get the color #b6b6b6.

When 3 of them overlap they almost look the same as a single node.

Revision history for this message
su_v (suv-lp) wrote :

<opinion>
> When two nodes overlap they look smaller than a single node,

If this is "fixed" based on the report, please also introduce a new UI indicator that two or more nodes are coinciding (to me this aspect of the reported UI problem was always a welcome and useful "feature", not a bug).
</opinion>

Revision history for this message
Cojnel (cojnel) wrote :

read in another bug report that it's better to attach images,
than to use an upload site, because the site might take it down.

description: updated
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