pixmap - definizione. Che cos'è pixmap
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Cosa (chi) è pixmap - definizione

TOOLKIT FOR MANIPULATION OF IMAGES
Netpbm format; Portable Pixmap File Format; Portable Bitmap File Format; Portable Graymap File Format; Pbmplus; Portable Pixmap file format; Pnmscale; Portable bitmap; .pnm; .ppm; .pgm; .pbm; Graymap; Portable graymap; Portable anymap; Portable Gray Map; Portable Pixmap; Portable pixmap; NetPBM; PAM graphics format; Portable pixmap format; PNM image; Portable bitmap format; Portable Bitmap Format; Portable bitmap file format; PPM image; Pbm file; .pam; Portable PixMap; .Pbm
  • 6px
  • 120px
  • Example (magnified)

pixmap         
DATA STRUCTURE FOR MAPPING FROM SOME DOMAIN (FOR EXAMPLE, A RANGE OF INTEGERS) TO BITS
Bitmaps; Pixmap; Pixel display format; Bit-map; OS/2 bitmap; Bump file; Bitmap Image; Bitmap image; Bitmap image format; Recursive X-Y cut; Bitmap images; Recursive XY-cut
(Contraction of "pixel map"). A 3 dimensional array of bits corresponding to a 2 dimensional array of pixels. It is used, for example, in the X Window System to describe a memory region where graphics can be drawn without affecting the screen. Typically this is used for the efficient handling of expose events, icon images or for animation. Compare bitmap. [Xlib Guide].
X PixMap         
  • Blarg file opened in program window
  • Blarg.xpm (XPM2) rendered by XnView
IMAGE FILE FORMAT
.xpm; X Pixmap; X Pixelmap; XPM2; XPM (image format)
X PixMap (XPM) is an image file format used by the X Window System, created in 1989 by Daniel Dardailler and Colas Nahaboo working at Bull Research Center at Sophia Antipolis, France, and later enhanced by Arnaud Le Hors.
Portable Pixmap         
<file format> (PPM) A colour image file format. A PPM file contains the following: a two character "magic number" - "P3", the width in pixels, the height in pixels, the maximum colour component value, HEIGHT rows of WIDTH pixels. The rows are ordered from top to bottom with the pixels in each row ordered from left to right. Each pixel is represented as three values for red, green, and blue. All parts are separated by whitespace and numbers are in decimal ASCIII representation. A zero pixel component means that colour is absent. Characters from a "#" to the next end-of-line are ignored and no line should be longer than 70 characters. Here is an example of a small pixmap in this format: P3 # feep.ppm 4 4 15 0 0 0 0 0 0 0 0 0 15 0 15 0 0 0 0 15 7 0 0 0 0 0 0 0 0 0 0 0 0 0 15 7 0 0 0 15 0 15 0 0 0 0 0 0 0 0 0 A "RAWBITS" variant has magic number "P6", pixel values are stored as plain binary bytes, instead of ASCII decimal and no whitespace is allowed after a single whitespace character after the maximum colour component value which must be less than or equal to 255. (1998-02-06)

Wikipedia

Netpbm

Netpbm (formerly Pbmplus) is an open-source package of graphics programs and a programming library. It is used mainly in the Unix world, where one can find it included in all major open-source operating system distributions, but also works on Microsoft Windows, macOS, and other operating systems.