On Wed, 2018-06-27 at 00:30 +0200, Jabier Arraiza wrote:

Hi all.

When we add a transform to a document the root layers become transformed.

I realy dont know why this transforms, is a unnecesary feature (basicaly the transform invert the document transform in the Y axis)

This is probably due to our inverted coordinate system. We should really get that fixed!

Sometimes a user want one direction and sometimes other, usualy is ignored because reposition of draw.

So in my point of view is better remove this "hidden" transform.

To put one place I find today this boring thing:

• I do a mockup for a web
• Copy a icon in it to a new doc
• Resize document to s ex: 32x32px.
• Move the icon to the center
• Work on it big time
• Going to publish but problems because your container layer has a

transform ex: in Y=200.22414234

• Preview the file in browser. contours are not aligned to pixel even

with PixelSnap extension

• After sometimes maybe have look and find the way:

1.- remove layer transform 2.- move the nodes to final position with node tool (cross fingers is not a group, if is a group, deep ungroop and move all nodes (loose group nestings)) 3.- apply pixelsnap or rounder.

Any other has the same problem? Whats the comunity opinion to remove this transform?

Regards, Jabier.

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Am 27.06.2018 um 17:05 schrieb Jabier Arraiza:

Seems the problem for https://bugs.launchpad.net/inkscape/+bug/1748759

Exactly, I remembered filing that bug but did not have the time to reply yet.

As Tav noted and I also concluded in my report from back then fixing the inverted y-axis avoids the issue in most cases as that's usually when the transform is added to the root layer.

Apart from that I'm not sure removing a root level transform is always what's desired as it requires propagating the transform down to all children, which has downsides of its own, e.g. rounding errors (that's also why I initially suggested to do that only if the layer is empty). Maybe we could introduce a separate action to remove transforms from all containers and apply them to their respective children? I could imagine that could come in handy in other scenarios as well and gives the user the choice wether to apply transforms or not.

Regards, Patrick

Hi all.

To fix the problem while we fix the invert coordinated system we can remove this if: https://gitlab.com/inkscape/inkscape/blob/master/src/ui/widget/page-sizer.cp...

I think the features it implement are low important than the wrongs.

Regards.

-----Original Message----- From: Eduard Braun <eduard.braun2@...173...> To: jabier.arraiza@...2893..., Inkscape-Devel <inkscape-devel@...3654... et> Subject: Re: [Inkscape-devel] Transform document create a transform to root layers Date: Wed, 27 Jun 2018 17:25:01 +0200

Am 27.06.2018 um 17:05 schrieb Jabier Arraiza:

Seems the problem for https://bugs.launchpad.net/inkscape/+bug/174875 9

Exactly, I remembered filing that bug but did not have the time to reply yet.

As Tav noted and I also concluded in my report from back then fixing the inverted y-axis avoids the issue in most cases as that's usually when the transform is added to the root layer.

Apart from that I'm not sure removing a root level transform is always what's desired as it requires propagating the transform down to all children, which has downsides of its own, e.g. rounding errors (that's also why I initially suggested to do that only if the layer is empty). Maybe we could introduce a separate action to remove transforms from all containers and apply them to their respective children? I could imagine that could come in handy in other scenarios as well and gives the user the choice wether to apply transforms or not.

Regards, Patrick