ViewBoxToDo - Revision history

Speleo3: import/export done

2009-05-15T20:21:58Z

import/export done

← Older revision		Revision as of 20:21, 15 May 2009
Line 5:		Line 5:
	* Clipping at viewBox boundaries		* Clipping at viewBox boundaries
	* UI dialog for modifying viewBox		* UI dialog for modifying viewBox
	* Consider viewBox transformation on import/export ([https://bugs.launchpad.net/inkscape/+bug/376064 Bug #376064])

	=== Related ===		=== Related ===

Speleo3: link to Bug #376064

2009-05-13T15:51:57Z

link to Bug #376064

← Older revision		Revision as of 15:51, 13 May 2009
Line 5:		Line 5:
	* Clipping at viewBox boundaries		* Clipping at viewBox boundaries
	* UI dialog for modifying viewBox		* UI dialog for modifying viewBox
	* Consider viewBox transformation on import/export		* Consider viewBox transformation on import/export ([https://bugs.launchpad.net/inkscape/+bug/376064 Bug #376064])

	=== Related ===		=== Related ===

Speleo3: import/export

2009-04-15T16:52:55Z

import/export

← Older revision		Revision as of 16:52, 15 April 2009
Line 1:		Line 1:
	This is an analysis of problems and possible solutions related incomplete viewBox support in inkscape.		This is an analysis of problems and possible solutions related to incomplete viewBox support in inkscape.

	~~=== Current Status ===~~

	~~All viewBox related transformation stuff works! :-)~~

	=== To Be Done ===		=== To Be Done ===
Line 9:		Line 5:
	* Clipping at viewBox boundaries		* Clipping at viewBox boundaries
	* UI dialog for modifying viewBox		* UI dialog for modifying viewBox
			* Consider viewBox transformation on import/export

	=== Related ===		=== Related ===

Speleo3: cleanup

2009-03-13T18:29:35Z

cleanup

← Older revision		Revision as of 18:29, 13 March 2009
Line 1:		Line 1:
	This is an analysis of problems and possible solutions related incomplete viewBox support in inkscape.		This is an analysis of problems and possible solutions related incomplete viewBox support in inkscape.

	=== ~~Update #2~~ ===		=== Current Status ===

	~~There was a nasty pointer fault in preserveAspcetRation parsing code.~~		All viewBox related transformation stuff works! :-)

	~~- if (e) {~~		=== To Be Done ===
	~~+ if (*e) {~~

	~~So [https://bugs.launchpad.net/inkscape/+bug/166885 bug #166885] should be fixed as well now.~~		* Clipping at viewBox boundaries
			* UI dialog for modifying viewBox
	~~=== Update ===~~

	~~I committed the following changes with revision 20339:~~

	* ~~assigning each new element the inversed full parent transform up to desktop, like suggested below in problem description~~
	* dropped sp_desktop_dt2root_* functions and introduced instead:

	~~Geom::Matrix const sp_desktop_dt2doc_affine (SPDesktop const *dt);~~
	~~Geom::Point sp_desktop_dt2doc_xy_point(SPDesktop const *dt, Geom::Point const p);~~

	~~=== Former Problem Description ===~~

	The '''viewBox''' attribute is like an additional transform to the documents root element. Inkscape does render documents with viewBox correct, but most tools currently lack to evaluate the viewBox when creating new elements on canvas. More precisely, neither viewBox nor the root's transform attribute is considered. Unexpected effects are for example:

	* pasted elements appear to big
	* strokes and other css are to large
	* font size to big (fixed with workaround in svn revision 20284)

	~~Also, Inkscape may want to set the~~ viewBox ~~itself to prevent other viewers from showing documents at a higher or lower resolution.~~

	~~Most tools (in~~ *~~-context.cpp files) set the transform for some new element to the inverse of the parent transform up to current root, but excluding the root transform:~~

	~~item->transform = SP_ITEM(desktop->currentRoot())->getRelativeTransform(desktop->currentLayer());~~

	~~The full transform could be obtained like this~~ for ~~example:~~

	~~item->transform = sp_item_i2doc_affine(SP_ITEM(desktop->currentLayer())).inverse();~~

	~~Unfortunately, this cannot be simply replaced, because position coordinates get scaled as well. Position from mouse pointer is retrieved like this:~~

	~~Geom::Point dtp = desktop->w2d(Geom::Point(event->button.x, event->button.y));~~
	~~tc->pdoc = sp_desktop_dt2root_xy_point(desktop, dtp);~~

	~~which finally '''does''' consider the root's~~ viewBox ~~attribute further down in desktop-affine.cpp~~

	~~Geom::Matrix const sp_desktop_root2dt_affine (SPDesktop const *dt)~~
	{
	~~SPRoot const *root = SP_ROOT(SP_DOCUMENT_ROOT(dt->doc()));~~
	~~return root->c2p * dt->doc2dt();~~
	}

	~~Dropping the viewBox (factor root->c2p) here, and taking the full transform for the new item above might improve the situation.~~

	=== Related ===		=== Related ===

	* [http://wiki.inkscape.org/wiki/index.php/BlueprintRealUnit Blueprint for real world unit (mm,in)]		* [http://wiki.inkscape.org/wiki/index.php/BlueprintRealUnit Blueprint for real world unit (mm,in)]
	* [https://bugs.launchpad.net/inkscape/+~~bug/167682 Bug #167682 (resizing page must also resize viewBox)]~~		* [https://bugs.launchpad.net/inkscape/+bugs?field.searchtext=viewBox Bug search for "viewBox"]
	* [https://launchpad.net/+search?field.~~text~~=~~viewbox~~ Bug search for "viewBox"]

Speleo3: preserveAspcetRation

2008-12-11T23:22:04Z

preserveAspcetRation

← Older revision		Revision as of 23:22, 11 December 2008
Line 1:		Line 1:
	This is an analysis of problems and possible solutions related incomplete viewBox support in inkscape.		This is an analysis of problems and possible solutions related incomplete viewBox support in inkscape.

			=== Update #2 ===

			There was a nasty pointer fault in preserveAspcetRation parsing code.

			- if (e) {
			+ if (*e) {

			So [https://bugs.launchpad.net/inkscape/+bug/166885 bug #166885] should be fixed as well now.

	=== Update ===		=== Update ===

Speleo3 at 21:03, 10 December 2008

2008-12-10T21:03:19Z

← Older revision		Revision as of 21:03, 10 December 2008
Line 11:		Line 11:
	Geom::Point sp_desktop_dt2doc_xy_point(SPDesktop const *dt, Geom::Point const p);		Geom::Point sp_desktop_dt2doc_xy_point(SPDesktop const *dt, Geom::Point const p);

	=== ~~Recent~~ Problem Description ===		=== Former Problem Description ===

	The '''viewBox''' attribute is like an additional transform to the documents root element. Inkscape does render documents with viewBox correct, but most tools currently lack to evaluate the viewBox when creating new elements on canvas. More precisely, neither viewBox nor the root's transform attribute is considered. Unexpected effects are for example:		The '''viewBox''' attribute is like an additional transform to the documents root element. Inkscape does render documents with viewBox correct, but most tools currently lack to evaluate the viewBox when creating new elements on canvas. More precisely, neither viewBox nor the root's transform attribute is considered. Unexpected effects are for example:

Khiraly: real world unit blueprint link added

2008-12-09T19:05:58Z

real world unit blueprint link added

← Older revision		Revision as of 19:05, 9 December 2008
Line 46:		Line 46:
	=== Related ===		=== Related ===

			* [http://wiki.inkscape.org/wiki/index.php/BlueprintRealUnit Blueprint for real world unit (mm,in)]
	* [https://bugs.launchpad.net/inkscape/+bug/167682 Bug #167682 (resizing page must also resize viewBox)]		* [https://bugs.launchpad.net/inkscape/+bug/167682 Bug #167682 (resizing page must also resize viewBox)]
	* [https://launchpad.net/+search?field.text=viewbox Bug search for "viewBox"]		* [https://launchpad.net/+search?field.text=viewbox Bug search for "viewBox"]

Speleo3: svn commit rev20339

2008-12-08T22:14:33Z

svn commit rev20339

← Older revision		Revision as of 22:14, 8 December 2008
Line 1:		Line 1:
	This is an analysis of problems and possible solutions related incomplete viewBox support in inkscape.		This is an analysis of problems and possible solutions related incomplete viewBox support in inkscape.

			=== Update ===

			I committed the following changes with revision 20339:

			* assigning each new element the inversed full parent transform up to desktop, like suggested below in problem description
			* dropped sp_desktop_dt2root_* functions and introduced instead:

			Geom::Matrix const sp_desktop_dt2doc_affine (SPDesktop const *dt);
			Geom::Point sp_desktop_dt2doc_xy_point(SPDesktop const *dt, Geom::Point const p);

			=== Recent Problem Description ===

	The '''viewBox''' attribute is like an additional transform to the documents root element. Inkscape does render documents with viewBox correct, but most tools currently lack to evaluate the viewBox when creating new elements on canvas. More precisely, neither viewBox nor the root's transform attribute is considered. Unexpected effects are for example:		The '''viewBox''' attribute is like an additional transform to the documents root element. Inkscape does render documents with viewBox correct, but most tools currently lack to evaluate the viewBox when creating new elements on canvas. More precisely, neither viewBox nor the root's transform attribute is considered. Unexpected effects are for example:

Speleo3: Related

2008-12-07T19:38:21Z

← Older revision		Revision as of 19:38, 7 December 2008
Line 31:		Line 31:

	Dropping the viewBox (factor root->c2p) here, and taking the full transform for the new item above might improve the situation.		Dropping the viewBox (factor root->c2p) here, and taking the full transform for the new item above might improve the situation.

			=== Related ===

			* [https://bugs.launchpad.net/inkscape/+bug/167682 Bug #167682 (resizing page must also resize viewBox)]
			* [https://launchpad.net/+search?field.text=viewbox Bug search for "viewBox"]

Jaspervdg at 08:08, 3 December 2008

2008-12-03T08:08:55Z

← Older revision		Revision as of 08:08, 3 December 2008
Line 7:		Line 7:
	* font size to big (fixed with workaround in svn revision 20284)		* font size to big (fixed with workaround in svn revision 20284)

	Most tools (in *-context.cpp files) set the transform for some new element to the ~~invers~~ of the parent transform up to current root, but excluding the root transform:		Also, Inkscape may want to set the viewBox itself to prevent other viewers from showing documents at a higher or lower resolution.

			Most tools (in *-context.cpp files) set the transform for some new element to the inverse of the parent transform up to current root, but excluding the root transform:

	item->transform = SP_ITEM(desktop->currentRoot())->getRelativeTransform(desktop->currentLayer());		item->transform = SP_ITEM(desktop->currentRoot())->getRelativeTransform(desktop->currentLayer());