When I use export, it seems screwy with the DPI. I expect that if I change the DPI to 72, and then change the size of the exported image, the DPI should stay the same. It is really wacky and unlike other graphics apps for the DPI to change when I change the image size, and vice-versa. Actually, most apps, like gimp, etc have locks to constrain dpi and proportions (see attached screenshot).
Anyhow, export use to work well for me to do exporting for web, but now is strange. Is this a problem for anyone else? Yes, I understand the logic that the size changes because there are then more pixels per inch, but I don't agree in how it acts.
Once someone sets dpi in this, then the exported image should stay the same size and just have a higher DPI, but same size.
Thoughts on this? Am I wrong here? Am I smoking something? Whats the deal??
Jon
On Thu, 24 Mar 2005 01:31:55 -0800, Jon Phillips <jon@...235...> wrote:
When I use export, it seems screwy with the DPI. I expect that if I change the DPI to 72, and then change the size of the exported image, the DPI should stay the same. It is really wacky and unlike other graphics apps for the DPI to change when I change the image size, and vice-versa.
If you think about it for a moment you will realize that unlike other apps, we have different controls for export _area_ and for the _size_ of exported image. So when you change the _area_ (either by the xo/y0/x1/y1/width/height controls, or by clicking Page, Drawing, or Selection), the export _size_ (in pixels) changes, but DPI stays the same. When you change export size, area stays the same but DPI changes to match.
Absolutely logical.
On Thu, 2005-03-24 at 13:03 -0400, bulia byak wrote:
On Thu, 24 Mar 2005 01:31:55 -0800, Jon Phillips <jon@...235...> wrote:
When I use export, it seems screwy with the DPI. I expect that if I change the DPI to 72, and then change the size of the exported image, the DPI should stay the same. It is really wacky and unlike other graphics apps for the DPI to change when I change the image size, and vice-versa.
If you think about it for a moment you will realize that unlike other apps, we have different controls for export _area_ and for the _size_ of exported image. So when you change the _area_ (either by the xo/y0/x1/y1/width/height controls, or by clicking Page, Drawing, or Selection), the export _size_ (in pixels) changes, but DPI stays the same. When you change export size, area stays the same but DPI changes to match.
Absolutely logical.
Yes, it is, but I think there needs to be a constraint toggle switch in the export dialog for when users want to scale the exported image in the export dialog, and not change what is on the canvas. When I want to scale something with this 'absolutely logical' way, I don't get constrained output, as I have to change the width independent of height, and the similar for the other controls int the top half of that dialog. I really don't want to do constraining by hand ;)
What do you think? Sorry for the late reply...been thinking about some other things...
Jon
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On 4/16/05, Jon Phillips <jon@...235...> wrote:
Yes, it is, but I think there needs to be a constraint toggle switch in the export dialog for when users want to scale the exported image in the export dialog
Just scroll Width in Bitmap size and the Height is updated to match. They are ALWAYS constrained, you can't get non-uniform scaling on export (why would you want it anyway?)
When I want to scale something with this 'absolutely logical' way, I don't get constrained output, as I have to change the width independent of height,
No. Again you are confusing bitmap size and export area. Bitmap SIZE is always constrained. Export area is not, but why would you want to constrain the AREA? Can you give a use case?
bulia byak wrote:
Just scroll Width in Bitmap size and the Height is updated to match. They are ALWAYS constrained, you can't get non-uniform scaling on export (why would you want it anyway?)
Perhaps if your bitmap is destined for a device with non-square pixels? (e.g. Digital Video, CRTs at non-4:3 resolutions)
John
On 4/18/05, John Pybus <john@...368...> wrote:
Just scroll Width in Bitmap size and the Height is updated to match. They are ALWAYS constrained, you can't get non-uniform scaling on export (why would you want it anyway?)
Perhaps if your bitmap is destined for a device with non-square pixels? (e.g. Digital Video, CRTs at non-4:3 resolutions)
I think it's not a very common requirement. Also you can achieve that by exporting from the command line with both --export-width and --export-height set.
On Mon, 2005-04-18 at 07:55 -0300, bulia byak wrote:
On 4/16/05, Jon Phillips <jon@...235...> wrote:
Yes, it is, but I think there needs to be a constraint toggle switch in the export dialog for when users want to scale the exported image in the export dialog
Just scroll Width in Bitmap size and the Height is updated to match. They are ALWAYS constrained, you can't get non-uniform scaling on export (why would you want it anyway?)
I mean in the Export Area section of that dialog. There should be a switch to contrains those settings.
When I want to scale something with this 'absolutely logical' way, I don't get constrained output, as I have to change the width independent of height,
No. Again you are confusing bitmap size and export area. Bitmap SIZE is always constrained. Export area is not, but why would you want to constrain the AREA? Can you give a use case?
Right, I did confuse those. Export Area Width and Height should have this constraint toggle I believe.
I would like to have constrained export area for height and widwth because if I only increase the Width in Export Area, then the Width of the Bitmap changes, but not the Height in constraint with the changing width. I want to scale up the image size, but keep the DPI the same, and that seems the best way to do this, and it is consistent with other apps.
On 4/20/05, Jon Phillips <jon@...235...> wrote:
I would like to have constrained export area for height and widwth because if I only increase the Width in Export Area, then the Width of the Bitmap changes, but not the Height in constraint with the changing width. I want to scale up the image size, but keep the DPI the same, and that seems the best way to do this, and it is consistent with other apps.
Setting custom export area is a very rare action. Most of the time you export an object and thus use the w/h/x/y of the selection. If you want to export selection with margins, just draw a rect underlaying your drawing with the margins you need and export that rect. Besides, if you want margins, what you propose would not be very helpful anyway because (1) proportional scaling will make unequal hor/vert margins if the drawing is not square and (2) you'll need to adjust x/y too, not only w/h. All this is very clumsy and inconvenient. So I don't see any real need for this change.
participants (3)
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bulia byak -
John Pybus -
Jon Phillips