Program: RASVIEW

Title: Raster Viewer

Version: 2.0

• Introduction
• Running RASVIEW
• Menus and Controls
• Startup Configuration
• Error Messages

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Introduction

RASVIEW is a general purpose raster file viewer, which can display monochrome or colour graphics files in over 60 formats. This version of RASVIEW is based on Lynx's standard viewer components shared by other Lynx programs and viewers.

Running RASVIEW

A raster or graphics file can be opened for viewing in three ways:

1. Select the File-Open menu option, and select the file in the open file dialogue
2. Specify the file on the command line when starting RASVIEW
3. Drag the file from an explorer window, and drop it on RASVIEW

To run from the command line:-

RASVIEW [-on] [-zppp] [INFILENAME]

The o command flag sets the displayed "orientation" of the image.
n is an orientation code in the range 0 to 7, made up by setting three bits
"1" bit - vertical mirror
"2" bit - rotate 90 degrees
"4" bit - horizontal mirror

-o3 will set vertical mirror AND rotate 90 degrees.

The z command flag sets the zoom factor for the image as a percentage of a 1:1 pixel scale
ppp is the percentage scale for the displayed image

-z50 will set a zoom factor of 50%, i.e. the image will appear at half its 1:1 pixel size.

INFILENAME is the full path of a raster file to open at program startup.

Menus and Controls

• File
  • Open 
    Select an input file via the standard Windows Open Dialogue
  • File Attributes
    Displays LEA Raster Object attributes for the currently open file (if the LEA Raster Object is installed and registered).
  • Print 
    Print a screen snapshot or the full image. for more details see Viewer Common Functionality - Print
• Options
  • Show Scalebars - toggle display of horizontal and vertical scalebars
  • Scales in cm - display scalebar and statusbar coordinates in cm
  • Scales in pixels - display scalebar and statusbar coordinates in pixels
• View
  The standard view manipulation functions on this menu are described in Viewer Common Functionality

Startup Configuration

RASVIEW startup options can be set in the [STARTUP] section of the program's INI file.

orientation=N
where N can be a number between 0 and 7 which determines the initial orientation of the input file. See the -o command line option above.

zoompcnt=mm
where mm is the initial zoom in percent. Setting this to 100 will display the input file at 1:1 input pixel to screen pixel.100

file filter=ffffffff
where ffffffff is a standard windows open dialog file filter, for example,
Tiff files (*.TIF)|*.TIF|all files (*.*)|*.*|

Error Messages

See Raster file related messages in Viewer Common Functionality.

See also:
Viewer Common Functionality
Viewers Index
Main Index