The GrADS command wi (write image) recognizes the same image formats supported by ImageMagick, namely: :
AVS - AVS X image file.
BIE - Joint Bi-level Image experts Group file interchange format.
BMP - Microsoft Windows bitmap image file.
BMP24 - Microsoft Windows 24-bit bitmap image file.
CGM - Computer Graphics Metafile.
CMYK - Raw cyan, magenta, yellow, and black bytes.
DCX - ZSoft IBM PC multi-page Paintbrush file.
DIB - Microsoft Windows bitmap image file.
EPS - Adobe Encapsulated PostScript file.
EPS2 - Adobe Level II Encapsulated PostScript file.
EPSF - Adobe Encapsulated PostScript file.
EPSI - Adobe Encapsulated PostScript Interchange format.
FAX - Group 3.
FIG - TransFig image format.
FITS - Flexible Image Transport System.
FPX - FlashPix Format.
GIF - CompuServe graphics interchange format; 8-bit color.
GIF87 - CompuServe graphics interchange format; 8-bit color (version 87a).
GRAY - Raw gray bytes.
GRADATION - gradual passing from one shade to another. Specify the
desired shading with the filename (e.g. gradation:red-blue).
GRANITE - granite texture.
HDF - Hierarchical Data Format.
HISTOGRAM
HTML - Hypertext Markup Language a with client-side image map.
JBIG - Joint Bi-level Image experts Group file interchange format.
JPEG - Joint Photographic Experts Group JFIF format; compressed 24-bit color.
ICO - Microsoft icon.
LABEL - text image.
MAP - colormap intensities and indices.
MIFF - Magick image file format.
MNG - Multiple-image Network Graphics.
MONO - Bi-level bitmap in least-significant-byte (LSB) first order.
MPEG - Motion Picture Experts Group file interchange format.
MTV -
NETSCAPE - Netscape 216 color cube.
NULL - NULL image.
PBM - Portable bitmap format (black and white).
PCD - Photo CD. The maximum resolution written is 512x768 pixels.
PCL - Page Control Language.
PCX - ZSoft IBM PC Paintbrush file.
PDF - Portable Document Format.
PGM - Portable graymap format (gray scale).
PICT - Apple Macintosh QuickDraw/PICT file.
PLASMA - plasma fractal image. Specify the base color as the
filename (e.g. plasma:gray). Use fractal to initialize to
a random value (e.g. plasma:fractal).
PNG - Portable Network Graphics.
PNM - Portable anymap.
PPM - Portable pixmap format (color).
PS - Adobe PostScript file.
PS2 - Adobe Level II PostScript file.
RAD - Radiance image file.
RGB - Raw red, green, and blue bytes.
RGBA - Raw red, green, blue, and matte bytes.
RLA - Alias/Wavefront image file; read only.
RLE - Utah Run length encoded image file; read only.
SGI - Irix RGB image file.
SHTML - Hypertext Markup Language a with client-side image map.
SUN - SUN Rasterfile.
TEXT - raw text file; read only.
TGA - Truevision Targa image file.
TIFF - Tagged Image File Format.
TIFF24 - 24-bit Tagged Image File Format.
TILE - tile image with a texture.
UIL - X-Motif UIL table.
VICAR - read only.
VID - Visual Image Directory.
VIFF - Khoros Visualization image file.
X - select image from X server screen.
XC - constant image of X server color. Specify the image color
as the filename (e.g. xc:yellow).
XBM - X Windows system bitmap, black and white only.
XPM - X Windows system pixmap file (color).
XWD - X Windows system window dump file (color).
YUV - CCIR 601 4:1:1 file.
Some of these formats are not currently supported by Win32 GrADS. You can use the format name in lower case with the GrADS wi command, e.g., wi test.bmp to write a Windows BMP file.
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