Images without alpha channel should not get a transparent background

[anonymous]

In the latest Version of JOSM all images with white background (telephon/toilets) are defect. (I think white is now transparent)

[anonymous]

They are not defect. They have been changed to no longer so omnipresent. If you have special problems with individual icons, name these problems directly and reopen the report.

[anonymous]

Ok, but i think they looks now terrible. For example the fuel sign have a white frayed border and if the background is black you can't see them very well.

[anonymous]

Some of the bad icons

[anonymous]

I'm 1/3 through the preset menu. Shall I continue to test every preset for the used icon and then look for icons that have no preset? Or do you see the problem and revert or fix the change that caused it?

[anonymous]

The change has been reverted to have a hotfix. Neverthelesse the reason is not yet fixed.

BTW: This is in no way a criticial bug. Even if it is major would be subject to discussion.

Error cause: When a PNG image has no alpha channel, JOSM takes the background as alpha channel and makes it transparent. The image optimization removed empty alpha channels from the icons thus triggering that bug in JOSM.

[carolus]

Replying to anonymous:

In the latest Version of JOSM all images with white background (telephon/toilets) are defect. (I think white is now transparent)

Both in JOSM 1043 and JOSM 1042 I see that nodes that are assigned amenity | toilets are not visible in the normal mode. Only in wireframe mode these nodes can be seen in the map window. I just entered a toilet once more where I knew I already entered one last week. Switching to wireframe mode I saw there already was a toilet node. So to save OSM from dublicate nodes, I think the priority should be increased.

[carolus]

Series of screen shots where we see that a toilet node is only visible in wire frame node.

[carolus]

Series of screen shots where we see that a toilet node is only visible in wire frame node.

[carolus]

Series of screen shots where we see that a toilet node is only visible in wire frame node.

[Hasienda]

another attempt to fix this by providing the same icons black on white without alpha channel found in ticket duplicate #1692

however, this is really annoying, to me too

Q.: I it really a problem to get hands on not-too-much optimized icons with alpha channel? I could make them from the bad ones with The GIMP on the fly ... (please ask hoff dot st at web dot de)

[bastiK]

Apparently this is fixed.

Some images are still without alpha channel, e.g. /transport/taxi.png, /misc/landmark/tower.png

However they are displayed correctly on the map.

Maybe the issue is still present for an OS other than Linux. Could someone please check on Windows?

[stoecker]

I think it depends on Java version. We didn't change anything regarding image display.

[bastiK]

42 of 523 images in styles/standard have no Alpha channel:

./leisure/garden.png
./leisure/nature_reserve.png
./sport/bicycle.png
./sport/chess.png
./sport/centre.png
./sport/riding.png
./hunting_stand.png
./rendering/quarry2.png
./rendering/beach.png
./rendering/quarry.png
./nautical/lock_gate.png
./nautical/marina.png
./nautical/anchor.png
./sightseeing/archaeological.png
./vehicle/cattle_grid.png
./vehicle/motorbike.png
./vehicle/gate.png
./vehicle/car_sharing.png
./vehicle/toll_booth.png
./service/administration/court_of_law.png
./service/emergency_access_point.png
./health/eye_specialist.png
./historic/boundary_stone.png
./religion/muslim.png
./religion/hinduism.png
./religion/jainism.png
./transport/airport/terminal.png
./transport/airport/helipad.png
./transport/turntable.png
./transport/taxi.png
./transport/car.png
./money/bank/vr-bank.png
./misc/information/guidepost.png
./misc/landmark/power.png
./misc/landmark/power/hydro.png
./misc/landmark/survey_point.png
./misc/landmark/water_tower.png
./misc/landmark/tower.png
./misc/landmark/beacon.png
./education.png
./accommodation/camping.png
./accommodation/guest_house.png

Would it help to update them?

[Cobra]

Some of these images are looking rather ugly with the plain white background (imho), but working.

[stoecker]

I don't think this is fixed. We did not change a single bit of code for this. It can be it is a Java issue. If so, we need at least to find out and document when Java fixed it. Otherwise this issue still exists.

The included icons have always been adapted properly. Issue was always when optipng or pngcrush has been run to reduce icons size.