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authorWilliam Joye <wjoye@cfa.harvard.edu>2017-01-03 21:51:01 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2017-01-03 21:51:01 (GMT)
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upgrade tkimg to 1.4.6
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-[comment {-*- tcl -*- doctools}]
-[vset FORMATNAME bmp]
-[vset FORMATFULLNAME {Windows Bitmap Format}]
-
-[include format-header.inc]
-
-This handler provides new additional configuration options. See
-section [sectref {BMP OPTIONS}] for more detailed explanations.
-
-
-[include format-middle.inc]
-
-
-In addition the value for the option is treated as list and may
-contain any of the special options listed in section
-
-[sectref {BMP OPTIONS}].
-
-[list_end]
-
-
-
-[section {BMP OPTIONS}]
-
-The handler provides an option to influence the writing of a BMP image.
-
-[list_begin definitions]
-
-[lst_item "[option -resolution] [arg res]"]
-
-The display resulation and/or aspect ratio property of the outputted bmp
-file may be set using this option.
-The default values are an x and y resolution of 74 dpi.
-
-[arg res] is a list of 2 or 3 elements and may have one of the following formats.
-The values [arg xres], [arg yres] and [arg unit] are specified after the formats.
-
-[list_begin definitions]
-
-[lst_item "[arg res] = [arg xres] [arg unit]"]
-
-Set the same resolution for x and y.
-
-Example: Write image with a resolution of 300dpi:
-[example_begin]
-img write out.bmp -format {bmp -resolution {300 i}}
-[example_end]
-
-[lst_item "[arg res] = [arg xres] [arg yres]"]
-
-Set the aspect ratio only.
-The x resolution remains to the default value 74dpi, as the bmp format does not allow to specify the aspect ratio only. The y resolution is set to 74*[arg yres]/[arg xres].
-
-Example: Write image with an aspect ratio of 1/3:
-[example_begin]
-img write out.bmp -format {bmp -resolution {1 3}}
-[example_end]
-
-[lst_item "[arg res] = [arg xres] [arg yres] [arg unit]"]
-
-Set an independent resolution for x and y direction.
-
-Example: Write image with a resolution of x=300dpi and y=150dpi:
-[example_begin]
-img write out.bmp -format {bmp -resolution {300 100 i}}
-[example_end]
-
-[list_end]
-
-
-The used parameters are:
-
-[list_begin arg]
-
-[arg_def float xres input]
-
-The output resolution in x direction as a float number.
-
-[arg_def float yres input]
-
-The output resolution in x direction as a float number.
-
-[arg_def string unit input]
-
-Unit of the given resolution numbers similar to Tk_GetPixel.
-Possible units are:
-
-[list_begin definitions]
-
-[lst_item "c"]
-pixel per centimeter.
-[lst_item "m"]
-pixel per meter.
-[lst_item "i"]
-pixel per inch.
-[lst_item "p"]
-pixel per inch/72 (Printer points).
-
-[list_end]
-
-[list_end]
-
-[list_end]
-
-[list_begin definitions]
-[include format-footer.inc]