Hi Linda,
thank you. unfortunately the dpi export/import value is ignored during the export.... i tried this already.
so, the problem is that illustrator is using the wrong dpi in his AI-Files?
Tobias
Am 20.01.2010 22:05, schrieb Linda A. Walsh:
Alvin Penner wrote:
I think so, unless someone else has a better idea. If it's any consolation the scale factor is predictable, you would need to make your original drawing 80% of its current size. Unless Illustrator allows you to change the screen units. Inkscape assumes that the default resolution is 90 dpi.
The size difference between the two files is confirmed. The bounding boxes for the two .svg files are given below. Illustrator - width="194.284px" height="75.238px" Inkscape - width="242.855" height="94.04725"
The ratio of the sizes is exactly 1.25 which equals 90/72, which equals the size ratio of a point to a pixel. It looks as though Inkscape has probably assumed that the original dimensions were given in points, and has probably converted them to pixels by multiplying by 90/72, which is a reasonable thing to do. (However, I know nothing about Illustrator, so I don't know if the native units in Illustrator are points or not.
I believe you are confusing 90 with 96. 96 pixels / inch is thereference standard given in CSS3 (http://www.w3.org/TR/css3-values/#reference), *though*, it's a 'relative' value that is listed as being defined by an angle of vision, 96 is the most common value associated with pixels (happening to be 1.5
- the size of an ADOBE (and web standard) 'point', which is defined as a
as a physical unit in HTML as 1/72nd of an inch.
The value of of dots/inch in a photo or Illustrator diagram issettable on a per-image basis. It's initial value will come from the value set in any template you choose (usually 72dpi).
The default dpi in inkscape is set in its preferences underimport/export. There you can set the default dpi you wish to use. That the product ships with a default of 90 would seem to be a bug as it doesn't correspond to any standard that I know of (72 or 96 or 100 would have made more sense, with 100 being from the nearest fixed-font size under the X-window system as well as being metric-like and easily subdivided).
Hopefully if you set your Import/Export value to 72 or 96 (72 seemslike such low resolution -- it's a very old standard, suitable for type sizing, but not pixels/inch. Remember, print is anything from 150-300 dpi. 72 or 96 would look pretty bad in print. Without Truetype, opentype or similar font-smoothing technology, 96dpi doesn't look very good on the screen, either.
Linda
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