Problem with unnecessary border

[Grewn]

Hi.
I have some problems in my workflow, as a designer. 
When the boundaries of objects are crossing, they used to have visible border. 

For example, when I impose a white rectangle over the image and the bottom line of a white rectangle coincides with the bottom line of image, and they are both (image + white rectangle) are on a white layer - here is a problem - I see the border of the white rectangle. This should not be, I don't want to see this border. 

This 100% is not some extra pixels look through, the boundaries of the figures intersect exactly. Also, it is 100% not a stroke - it is disabled.

How can I disable it? How can I turn off visibility of this border?

Here you can see a problem on screenshot.

[Grewn]

Does anybody know how to solve this problem?

[dutchshader]

Hello Grewn, and welcome to the forum

 

Could you post the .af file it looks like the items are not pixel alligned.

[Grewn]

Sure.

test.afdesign

[firstdefence]

Duplicate the white bar then boolean subtract one white bar from the coloured bar it overlays. 

test edit.afdesign Saved with history so you can jog back and forth in the history panel. 

[dutchshader]

it looks like this is a redraw issue, the lines are not vissible in a exported png or svg file

[Grewn]

5 hours ago, firstdefence said:

Duplicate the white bar then boolean subtract one white bar from the coloured bar it overlays. 

Unfortunately, this way complicates and slows down the workflow. Also I can simply increase the figure, which is on top, cause then figure will block this line. But this is not a solution.

5 hours ago, dutchshader said:

it looks like this is a redraw issue, the lines are not vissible in a exported png or svg file

Yes, but when I’m creating some UI, I need to see exact layout without phantom lines.

 

It’s a pity, if this cannot be changed without manipulating some objects.

[firstdefence]

Isn't there an option to turn precise clipping on from preferences?

[Grewn]

I was looking for this option but couldn’t find it.

[firstdefence]

2 minutes ago, Grewn said:

I was looking for this option but couldn’t find it.

It's on the Performance Tab in Prefs

[JimmyJack]

The red lines most certainly do show up on export (for me).

The rest is a redraw error as stated. It goes away at any magnification multiple of 100. This is just how Affinity is. Precise clipping wont help.

Regarding the red: that's a different case because you're not pixel perfect. The Y position of both the red and it's white overlay are at 406.7.
Change that to a whole number and they should behave as the others.

[R C-R]

7 hours ago, JimmyJack said:

Regarding the red: that's a different case because you're not pixel perfect. The Y position of both the red and it's white overlay are at 406.7.

To be pedantic about it, to the maximum displayable 6 decimal place precision of the app, the Y position of the top right corner of both is 406.66232 px. The X positions are 457.249503 px & 543.67927 px respectively.

[Grewn]

About red block.. I've understood, but the problem still exists - a phantom line on any approximation, non-multiple 100. This is a painful bug. Are they planning to fix it?