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Newbie here with a couple of queries

Feb 8, 2011, 00:08
Post: #1
Newbie here with a couple of queries
Hello everyone

I've recently downloaded gimp after it was highly recommended by a graphic designer friend. I'm enjoying exploring it all, so thnaks to gimp!

I have a couple of basic questions if someone could be able to assist ? For some reason I can't get the toolbox up as a dialog box. It's in the menu bar, but not conveniently as a dialog box beside the pic I'm working on and that I can go to quickly.

Also, I have some photos of buildings, but their persepective is distorted because of the angle I took the buildings. Can someone please advise me on how I can straighten buildings and other landscapes with gimp? In other words take a building that looks like it is leaning back and make it look upright?

Hope some folks can help. Thanks Shy

Cheers
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Feb 8, 2011, 01:35
Post: #2
RE: Newbie here with a couple of queries
Normally the Toolbox shows up (and hides) with Ctrl-B or Tab. if it's out when you quit Gimp, it will show up when you restart.

Straightening up building is done with tadaaa... the Perspective tool (shift-P, or in the tools palette). Get out the Tool options dialog (Windows/Dockable Dialogs/Tool options) for options (grid, preview...). I use it in "corrective mode". You drag the corners, this will create a frame in the picture, and you make the sides of that frame parallel to what should be vertical on the sides of the picture. When you hit the transform button, the outside of the frame is discarded and the frame is made rectangular (you quickly learn to get some more margins in you original photosSmile Note that this can lead to a change of aspect ratio if you aren't careful. It always a good idea to take some measurements along verticals and horizontals with the measure tools (where the horizontals won't change, usually at the bottom) and check that his hasn't changed too much (otherwise you can rescale the picture along one of the dimensions)

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Feb 8, 2011, 22:23 (This post was last modified: Feb 8, 2011 22:24 by Anarxos.)
Post: #3
RE: Newbie here with a couple of queries
Thank you so much. I'll try what you said and let you know how it went. Cheers! Smile
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Feb 9, 2011, 05:23
Post: #4
RE: Newbie here with a couple of queries
(Feb 8, 2011 01:35)ofnuts Wrote:  Normally the Toolbox shows up (and hides) with Ctrl-B or Tab. if it's out when you quit Gimp, it will show up when you restart.

Straightening up building is done with tadaaa... the Perspective tool (shift-P, or in the tools palette). Get out the Tool options dialog (Windows/Dockable Dialogs/Tool options) for options (grid, preview...). I use it in "corrective mode". You drag the corners, this will create a frame in the picture, and you make the sides of that frame parallel to what should be vertical on the sides of the picture. When you hit the transform button, the outside of the frame is discarded and the frame is made rectangular (you quickly learn to get some more margins in you original photosSmile Note that this can lead to a change of aspect ratio if you aren't careful. It always a good idea to take some measurements along verticals and horizontals with the measure tools (where the horizontals won't change, usually at the bottom) and check that his hasn't changed too much (otherwise you can rescale the picture along one of the dimensions)
Hi there
I've been able to open the Toolbox dialog, but when I click on the Tool Options dialog nothing happens. The box doesn't pop up, even though every other dockable dialog box opens. Don't understand why that's happening...Huh
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Feb 9, 2011, 08:08
Post: #5
RE: Newbie here with a couple of queries
In your Gimp profile (on Windows XP, c:\Documents and Settings\{your_id}\.gimp-2.6) edit the "sessioncrc" file and see if it contains something like:

Code:
(session-info "dock" "dock"
    (position 0 0)
    (size 200 834)
    (open-on-exit)
    (aux-info
        (show-image-menu "false")
        (follow-active-image "true"))
    (dock
        (book
            (current-page 0)
            (dockable "gimp-tool-options"
                (tab-style preview)))))

(the important bit is "gimp-tool-options"). This defines the window where the Tool options dialog appears. If it's the only one in the window, check the size/position (may display offscreen, or small and hidden). Otherwise it may be hidden in another window together with other dialogs (check for tabs in other dialogs, the tab of the Tool option bears the icon of the current Tool).

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Feb 9, 2011, 22:42 (This post was last modified: Feb 9, 2011 22:42 by Anarxos.)
Post: #6
RE: Newbie here with a couple of queries
Hi ofnuts

I've worked things out and dialog boxes are appearing. Thank you so much for all your help. Much appreciated.

I'm looking forward to manipulating my pics even more and finding out how to make frames and borders for them too.

Cheers
Anarxos
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Feb 10, 2011, 00:40
Post: #7
RE: Newbie here with a couple of queries
Glad to have you back on track. For my information, what was the problem?

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Feb 10, 2011, 12:53
Post: #8
RE: Newbie here with a couple of queries
(Feb 10, 2011 00:40)ofnuts Wrote:  Glad to have you back on track. For my information, what was the problem?
There wasn't a problem, just an oversight, which makes me look a bit silly really. I have two screens in front of me and one wasn't on, but the dialog box was popping up in that one and of course as soon as i turned it on, guess what was there. Yes, silly me Rolleyes

Your advice about changing the perspective has been useful for the pics so far that I've manipulated. Thanks!
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Feb 10, 2011, 13:12
Post: #9
RE: Newbie here with a couple of queries
(Feb 10, 2011 12:53)Anarxos Wrote:  
(Feb 10, 2011 00:40)ofnuts Wrote:  Glad to have you back on track. For my information, what was the problem?
There wasn't a problem, just an oversight, which makes me look a bit silly really. I have two screens in front of me and one wasn't on, but the dialog box was popping up in that one and of course as soon as i turned it on, guess what was there. Yes, silly me Rolleyes

Good one... Big Grin Next time someone asks I'll think about checking for the double display configuration.

(Feb 10, 2011 12:53)Anarxos Wrote:  Your advice about changing the perspective has been useful for the pics so far that I've manipulated. Thanks!

Additional advice: my own shots are seldom perfectly horizontal/vertical shots. It is best to correct the rotation first (finding a vertice close to the center) otherwise your perspective correction will include a bit of rotation and not be correct.

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Feb 11, 2011, 11:38
Post: #10
RE: Newbie here with a couple of queries
(Feb 10, 2011 13:12)ofnuts Wrote:  
(Feb 10, 2011 12:53)Anarxos Wrote:  
(Feb 10, 2011 00:40)ofnuts Wrote:  Glad to have you back on track. For my information, what was the problem?
There wasn't a problem, just an oversight, which makes me look a bit silly really. I have two screens in front of me and one wasn't on, but the dialog box was popping up in that one and of course as soon as i turned it on, guess what was there. Yes, silly me Rolleyes

Good one... Big Grin Next time someone asks I'll think about checking for the double display configuration.

(Feb 10, 2011 12:53)Anarxos Wrote:  Your advice about changing the perspective has been useful for the pics so far that I've manipulated. Thanks!

Additional advice: my own shots are seldom perfectly horizontal/vertical shots. It is best to correct the rotation first (finding a vertice close to the center) otherwise your perspective correction will include a bit of rotation and not be correct.
Cheers for that. That actually occured to me as well, but if I may ask another possibly silly question, when you rotate a picture, how do you make it stay that way, because I press transform, but then when I go to the perspective tool it rotates back to the way it was once I click on the picture. Hmmm, probably something real simple again, but haven't worked it out yet.
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Feb 11, 2011, 12:41
Post: #11
RE: Newbie here with a couple of queries
Weird... but a couple of things to check:

1) no partial selection active (select none or select all to make sure)
2) the rotate tool is applied to the layer (and the proper layer is selected) and not to the selection or a path
3) working in Normal or Corrective mode?
4) using the right tool... there is no "Transform" button on the rotate tool, it's labeled "Rotate".

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Feb 14, 2011, 05:04
Post: #12
RE: Newbie here with a couple of queries
Thanks ofnuts.

I've worked that one out too. I must experiment more before looking for answers too quickly. My apologies for any inconvenience.

Cheers!!
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