Marquee tool not cutting the correct pixels size

[AndRo Marian]

1. Open the attachment image
2. Go to pixel panorama
3. Use the Marquee Tool, drag from outside of canvas and put the 672x378
4. Move the X and Y a little to the center (Not really need)
4. Press Ctrl+X and File -> New From Clipboard

Now the image has extra transparent pixels around it, or in right and bottom if is 0,0.

[GarryP]

I don’t know which Marquee Tool you are using, or what you mean by “put the 672x378”, or “Move the X and Y a little to the center”.
Can you be a bit clearer please?
I tried to do what I could understand of what you wrote and can’t find anything wrong, so I guess that the problem is in the parts that I didn’t understand.

[AndRo Marian]

Don't look at the old version of software. Is same for all versions I try.

[GarryP]

Interesting.
On Windows 10 with Designer 1.9.2.1035 (current commercial version) I can replicate the result, but I don’t know why it happens.
I also tried selecting a slightly different way and get the same sort of result.
However, selecting in many other ways doesn’t give me the same result, so I think it needs more experimentation to figure out exactly which part(s) of the procedure are causing the issue.
I don’t use this feature very often so I might be missing some basic information, but it does look a little odd to me and not what I would expect.

[prophet]

I cannot replicate this with Designer 1.9.3 on MacOS 10.14.6. Maybe PC only issue?

[AndRo Marian]

1 minute ago, prophet said:

I cannot replicate this with Designer 1.9.3 on MacOS 10.14.6. Maybe PC only issue?

No know. There is no 1.9.3 for now on PC. But if you can't replicate with older version. I think Yes.

[ashf]

Try these：
1. Turn on force pixel alignment option.
2. Turn off Hardware Acceleration in Preference>Performance.

[AndRo Marian]

Already ON Pixel Alignment. Anyway, if the rectangle value has no decimals on it, should be good.
I can't turn Hardware Accleration ON with an Intel HD 4600. Anyway, what this should have to do if this is just for rendering. And not how the Rectangle Marquee Tool is cutting the image.

Basically you can cut on AD and paste it on Windows Paint and is the same result.

[ashf]

Are you using some sort of clipboard utility?

[AndRo Marian]

1 hour ago, ashf said:

Are you using some sort of clipboard utility?

What made you think that?

[ashf]

1 minute ago, AndRo Marian said:

What made you think that?

Clipboard utilities tend to interfere copy & paste action in Affinity.

[AndRo Marian]

1 minute ago, ashf said:

Clipboard utilities tend to interfere copy & paste action in Affinity.

Hmm, never used. Still the same on VM on fresh Windows 10 1803, on main is latest.
I would try 8.1 but I this will be the same result.

[ashf]

2 minutes ago, AndRo Marian said:

Hmm, never used. Still the same on VM on fresh Windows 10 1803, on main is latest.
I would try 8.1 but I this will be the same result.

What happens if you disable the Clipboard History in the Windows system setting? 
I doubt that it related to this problem but just in case.

[AndRo Marian]

3 minutes ago, ashf said:

What happens if you disable the Clipboard History in the Windows system setting? 
I doubt that it related to this problem but just in case.

Nop

[MEB]

Hi @AndRo Marian
Don't draw the selection then go to the Transform panel to resize it. That's the cause of the issue (this is logged/with the dev team). Use the rectangle tool to draw the shape, set the dimensions you want in the transform panel (integer values), drag the shape layer over the image's thumbnail layer int he Layers panel to use it as a clipping mask, copy it to clipboard then File > New From clipboard. You should get an image with the correct dimensions and no transparency. If you wish to merge the image and the clipping mask, right click the image layer in the Layers panel and select Rasterise.

In Affinity Photo (in case you have it) you can use the Rectangle Tool, to draw a rectangle and set its dimension in the Transform panel then go to the Pen Tool and click the Selection button in the context toolbar to convert the shape into a selection. Then proceed to copy/paste a new document as usual. This option is not available in Affinity Designer.

[AndRo Marian]

16 minutes ago, MEB said:

Hi @AndRo Marian
Don't draw the selection then go to the Transform panel to resize it. That's the cause of the issue. Use the rectangle tool to draw the shape, set the dimensions you want in the transform panel, drag the shape layer over the image's thumbnail layer int he Layers panel to use it as a clipping mask, copy it to clipboard then File > New From clipboard. You should get an image with the correct dimension and no transparency. If you want to merge the image and the mask, right click the image layer in the Layers panel and select Rasterise.

This is a good workaround. But why that adds 1 empty pixel around the image?
That's seams a problem to me. Like the @GarryPsays, is not appear for every action.
Seams some @prophetcan't reproduce it on MAC...

[MEB]

Hi @AndRo Marian,
Assuming you are entering integer values for the width and height of the rectangle, it's because the X and Y coordinates of the rectangle are not integer values (it's not correctly pixel aligned). Enable Force Pixel Alignment in the main toolbar (keep Move by Whole Pixels disabled which is the next button on the right), then move the rectangle a bit to force it to adjust/snap to integer values/pixel grid. Keep an eye in the Transform panel to confirm it's correctly aligned.

To see more decimal places in the Transform panel and elsewhere in the app, go to Affinity Preferences, User Interface section, Decimal Places for Units Types area, and increase the Pixels value to 3 or 4 so you can catch values like 235,005. By default its set to a single decimal place.

[AndRo Marian]

16 minutes ago, MEB said:

Hi @AndRo Marian,
assuming you are entering integer values for the width and height of the rectangle, it's because the X and Y coordinates of the rectangle are not integer values (it's not correctly pixel aligned). Enable Force Pixel Alignment in the main toolbar (keep Move by Whole Pixels disabled), then move the rectangle a bit to force it to adjust/snap to integer values/pixel grid.

Already say I have Force Pixel Alignment enabled and values are without decimals.
I have to show 3 decimals after dot. There are a good rounded value.

[walt.farrell]

4 minutes ago, AndRo Marian said:

and values are without decimals.

Did you type the values into the Transform panel, or are you trusting the values displayed displayed there?

If you did not type the values, have you adjusted your Affinity Preferences, User Interface section, to increase the number of decimal places displayed for px measurements? It defaults to 0, so unless you've changed it (to perhaps 3 or more), it can show misleading values.

[AndRo Marian]

13 minutes ago, walt.farrell said:

Did you type the values into the Transform panel, or are you trusting the values displayed displayed there?

If you did not type the values, have you adjusted your Affinity Preferences, User Interface section, to increase the number of decimal places displayed for px measurements? It defaults to 0, so unless you've changed it (to perhaps 3 or more), it can show misleading values.

I can type it or using the mouse wheel. Same result. Yes, is 3 decimals. Still should show if is not a perfect number.

[MEB]

Do you mind attaching the file please?

[AndRo Marian]

2 minutes ago, MEB said:

Do you mind attaching the file please?

Is already on first post. And a video below. I can make a project with it, but is the same thing.

Not sure, but the software seams to be is using Double as a number type. And not Decimal that would be better.

[loukash]

9 hours ago, AndRo Marian said:

Now the image has extra transparent pixels around it, or in right and bottom if is 0,0.

Before making your marquee selection, disable Antialias and set Feather to 0 px.

^ Ah, strike that. Now I see from your video that it is disabled.

Edited April 19, 2021 by loukash

[AndRo Marian]

1 minute ago, loukash said:

Before making your marquee selection, disable Antialias and set Feather to 0 px.

Already unchecked and Feather is 0.

[loukash]

3 minutes ago, AndRo Marian said:

And a video below

From your video I can see that you have enabled "Move By Whole Pixels", but not "Force Pixel Alignment".
It needs to be vice versa.