Gimp - 2.4 Guía Del Usuario
GNU Image Manipulation Program
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7.5.6
Paths and SVG files
SVG, standing for ‘Scalable Vector Graphics’, is an increasingly popular file format for vector graphics, in which graphical
elements are represented in a resolution-independent format, in contrast to raster graphics; in which graphical elements are
represented as arrays of pixels. GIMP is mainly a raster graphics program, but paths are vector entities.
elements are represented in a resolution-independent format, in contrast to raster graphics; in which graphical elements are
represented as arrays of pixels. GIMP is mainly a raster graphics program, but paths are vector entities.
Fortunately, paths are represented in SVG files in almost exactly the same way they are represented in GIMP. (Actually fortune
has nothing to do with it: GIMP’s path handling was rewritten for GIMP 2.0 with SVG paths in mind.) This compatibility makes
it possible to store GIMP paths as SVG files without losing any information. You can access this capability in the Paths dialog.
has nothing to do with it: GIMP’s path handling was rewritten for GIMP 2.0 with SVG paths in mind.) This compatibility makes
it possible to store GIMP paths as SVG files without losing any information. You can access this capability in the Paths dialog.
It also means that GIMP can create paths from SVG files saved in other programs, such as Inkscape or Sodipodi, two popular
open-source vector graphics applications. This is nice because those programs have much more powerful path-manipulation
tools than GIMP does. You can import a path from an SVG file using the Paths dialog.
open-source vector graphics applications. This is nice because those programs have much more powerful path-manipulation
tools than GIMP does. You can import a path from an SVG file using the Paths dialog.
The SVG format handles many other graphical elements than just paths: among other things, it handles figures such as squares,
rectangles, circles, ellipses, regular polygons, etc. GIMP 2.0 cannot do anything with these entities, but GIMP 2.2 can load them
as paths.
rectangles, circles, ellipses, regular polygons, etc. GIMP 2.0 cannot do anything with these entities, but GIMP 2.2 can load them
as paths.
Note
Creating paths is not the only thing GIMP can do with SVG files. It can also open SVG files as GIMP images, in the
usual way.
Creating paths is not the only thing GIMP can do with SVG files. It can also open SVG files as GIMP images, in the
usual way.
7.6
Brushes
Figure 7.13: Brush strokes example
A number of examples of brushstrokes painted using different brushes from the set supplied with GIMP. All were painted using
the Paintbrush tool.
A brush is a pixmap or set of pixmaps used for painting. GIMP includes a set of 10 "paint tools", which not only perform
operations that you would think of as painting, but also operations such as erasing, copying, smudging, lightening or darkening,
etc. All of the paint tools, except the ink tool, use the same set of brushes. The brush pixmaps represent the marks that are made
by single "touches" of the brush to the image. A brush stroke, usually made by moving the pointer across the image with the
mouse button held down, produces a series of marks spaced along the trajectory, in a way specified by the characteristics of the
brush and the paint tool being used.
operations that you would think of as painting, but also operations such as erasing, copying, smudging, lightening or darkening,
etc. All of the paint tools, except the ink tool, use the same set of brushes. The brush pixmaps represent the marks that are made
by single "touches" of the brush to the image. A brush stroke, usually made by moving the pointer across the image with the
mouse button held down, produces a series of marks spaced along the trajectory, in a way specified by the characteristics of the
brush and the paint tool being used.
Brushes can be selected by clicking on an icon in the
. GIMP’s current brush is shown in the Brush/Pattern/Gra-
dient area of the Toolbox. Clicking on the brush symbol there is one way of activating the Brushes dialog.
When you install GIMP, it comes presupplied with a number of basic brushes, plus a few bizarre ones that serve mainly to
give you examples of what is possible (i. e., the "green pepper" brush in the illustration). You can also create new brushes, or
download them and install them so that GIMP will recognize them.
give you examples of what is possible (i. e., the "green pepper" brush in the illustration). You can also create new brushes, or
download them and install them so that GIMP will recognize them.