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ozgis70.tut
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1992-01-04
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HARDCOPY MAP PRODUCTION
=======================
OzMAP
-----
Maps are designed with the interactive OzGIS program and saved as Saved display
files. These files are then read into the OzMap program and output on the
desired device or file. Attributes and quantisation can be changed in the usual
way to produce a series of maps.
Often maps will be previewed on the screen and then output to a plotter,
printer or file.
Hardcopy map production is limited by the capabilities of the SCIPLOT package.
SciPlot produces many graphic file types:
The Postscript file is an ASCII file that may be edited or sent directly to any
Postscript printer.
The Encapsulated Postscript file (EPS) and the Computer Graphics Metafile (CGM),
an ANSI standard format file, are files that should not be edited for they
contain binary information.EPS and CGM files can be imported directly into
wordprocessors or other graphical products.
The HP pen plotter file (HPGL) is an ASCII file that can be edited or imported
into wordprocessors or other graphical products.
The WordPerfect file (WPG) is a binary file in WordPerfect's internal graphics
format.WPG files are directly importable into the WordPerfect wordprocessor.
The SciPlot Graphics file is a file in SciPlot's own internal format and is
used solely as input to the VECTOR program.This file is a binary file in very
compact format.It contains the stream of vectors which represent the figures,
characters, etc. generated during the execution of the application program.
VECTOR processes this graphic file and arranges raw vectors in a direction of
paper motion order before display on dot matrix printers and laserjet printers.
For Apple LaserWriters, HP pen plotters, and other graphics devices that
support avector drawing commands directly, ordering is not required and VECTOR
immediately displays the vectors.
Device files
------------
Several device files are provided to control the appearence of maps on output
devices. These device files can also be used with OzGIS (they will need minor
modification for use with EGAs).
You have to use device files that use hatching for polygon fill. The
configuration section explains the files available. Generally you need to use
hatching device files that have the same resolution as that used in OzGIS or
aspects and character sizes may not be suitable.
HATCHSV1 - provides polygon display using hatching.
HATCHBV1 - hatching for bivariate maps.
CSIMSV* and CSIMBV* - a series of device files that use the red, green and blue
plotter pens (or screen colours) to simulate the colour sequences; look at then
on the screen first to decide which ones to try.
The hatching device files can of course be modified to define other hatching
patterns.
VECTOR Program
--------------
This program enables metafiles produced in the OzMap program to be output to a
variety of devices and files with such options as rotation and scaling.
VECTOR's function is to provide a utility to register SciPlot's output on
plotting devices (dot matrix and laserjet printers) which cannot be supported
directly without requiring significant system resources.VECTOR also provides
interactive preview of graphics files on the screen or bath processing at some
other time.