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Bug 370440

Summary:

Over scaling of connections and lines after canvas zoom

Product:

[Modeling] Graphiti

Reporter:

Craig Petre <cpetre>

Component:

Core

Assignee:

Project Inbox <graphiti-inbox>

Status:

CLOSED FIXED

QA Contact:

Severity:

normal

Priority:

CC:

christian.brand, fabio.filippelli, matthias.gorning, michael.wenz, rhett.hudson, roman.porotnikov, steffen.kollosche

Version:

0.8.0

Flags:

christian.brand: juno+

Target Milestone:

0.9.0

Hardware:

OS:

Linux

See Also:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=377465

Whiteboard:

Juno M7 Theme_bugs

Attachments:

Description	Flags
100% Zoom	none
400% Zoom	none
800% Zoom	none
Actor - 100% Zoom	none
Actor (overscaled line width) - 400% Zoom	none
Use Case - 100% Zoom	none
Use Case (cut off) - 400% Zoom	none

Description Craig Petre

2012-02-02 09:25:11 EST

Build Identifier: 20110916-0149

Certain types of lines and connections appear to be scaling more than they should during zoom.  It seems the expected behavior during zoom is that the ratio of line width to grid block should remain consistent regardless of zoom level; however, this does not seem to be the case.  Attached are some screen shots from the sketch tool against nightly build: 0.9.0.v20120131-1644 of Graphiti which illustrate the bug.

Reproducible: Always

Steps to Reproduce:
1.  Drag a EClass into the diagram (or two and connect them)
2.  Take not of the line thickness (of borders/connections) as it relates to the grid
3.  Zoom in (400% or so) and notice the line thickness is much greater with respect to the grid as it was in the 100% zoom case.  Zoom to 1000% to notice the effects even more.

Comment 1 Craig Petre

2012-02-02 09:25:55 EST

Created attachment 210448 [details]
100% Zoom

Comment 2 Craig Petre

2012-02-02 09:26:29 EST

Created attachment 210449 [details]
400% Zoom

Comment 3 Craig Petre

2012-02-02 09:26:59 EST

Created attachment 210450 [details]
800% Zoom

Comment 4 Steffen K.

2012-04-06 16:10:33 EDT

Created attachment 213714 [details]
Actor - 100% Zoom

UML Actor - Zoom 100%

Comment 5 Steffen K.

2012-04-06 16:12:06 EDT

Created attachment 213715 [details]
Actor (overscaled line width) - 400% Zoom

Comment 6 Steffen K.

2012-04-06 16:12:40 EDT

Created attachment 213716 [details]
Use Case - 100% Zoom

Comment 7 Steffen K.

2012-04-06 16:13:21 EDT

Created attachment 213717 [details]
Use Case (cut off) - 400% Zoom

Comment 8 Steffen K.

2012-04-06 16:13:56 EDT

We from the Spray project have the same problems with the scaling during zoom as described above. Additionally we noticed that during zoom some parts of our graphics get cut off (see attachment Use Case (Cut Off) - 400% Zoom). Also the line width of our graphics get overscaled during zoom (see attachments Actor 100% and Actor 400%).

The possibility to zoom into diagrams is very important for our project and we would be grateful if you could solve this problem.

Comment 9 Michael Wenz

2012-04-10 02:10:23 EDT

(In reply to comment #8)
> The possibility to zoom into diagrams is very important for our project and we
> would be grateful if you could solve this problem.

Actually, a colleague had a look into this issue the week before easter. We only talked shortly on this, but he mentioned some (maybe missing) GEF (?) functionality. The colleague is not in the office this week, so let's see were we can get with this after his vacation.

Comment 10 Christian Brand

2012-04-24 02:21:10 EDT

The problem with overscaling line widths should be solved now. We had some intensive tests and everything looked well.
The mentioned problem with shapes which are cut off in zoom mode has to be handled separately. So we have to open up a new bug. With some investigations in that direction it must be feared that the correction opens a big construction site... So perhaps we cannot solve it for this release.

Comment 11 Christian Brand

2012-04-24 02:40:31 EDT

commit a8f1211e8cc5046d47eb4b499d827cc285bb7242
Author: cbrand <christian.brand@sap.com> 2012-04-20 14:58:05
Committer: cbrand <christian.brand@sap.com> 2012-04-20 14:58:05
Parent: eb5f77b24660a3d8239db0b9bcbb1fbccf245f57 (Bug 369241 - SVG export does not rotate objects)
Branches: origin/master

Comment 12 Matthias Gorning

2012-04-24 03:00:16 EDT

Existing problems will be solved in the Kepler release:

See https://bugs.eclipse.org/bugs/show_bug.cgi?id=377465

Comment 13 Michael Wenz

2012-06-29 04:24:06 EDT

Part of Graphiti 0.9.0 (Eclipse Juno)