Standard Command Set

Before describing individual commands it is useful to get a view of the standard command set. All commands are available in all interfaces although some are no-ops.

The set command allows various settings to be assigned, and multiple settings can be included on a command line. This command is and is a consolidation of individual commands available in previous versions. The old commands (e.g. pcompress now replaced with set pcompress=) are still available but have been deprecated and will be phased out.

Data Source Definition

cd	Change directory
connect	Connect to a database

Data Selection and Retrieval

select	Define a query (typical interface-dependent SQL data selection)
iselect	Define a query for retrieval of system or meta-data information
set classname	Provide a name for the class used by objfetch
set classtype	Provide a type for the class used by objfetch
set clip	Define a clipping region(s)
set noclip	Define inverse clipping region(s)
set memlimit	Define maximum memory usage
set objectcolumn	Provide a column from which object names are derived during objfetch
set objectprefix	Provide a name prefix for object names derived during objfetch
set prefetch	Set the internal fetch row buffer count
fetch_class	Fetch the class definition of the current select query.
objfetch	Fetch row data as composite objects and send to the client
draw	Fetch row data and send to the client for graphic draw-only purposes
set single_vectors	Fetch single line vectors as single lines (1) or polylines (0).

Database Interface Commands

Database interfaces have direct connections to database servers (ODBC, Oracle etc.). Any commands not recognised as interface commands are passed through to the database as SQL, e.g. select, insert, update, delete. In addition, the following commands are understood by database interfaces only.

fetch	Fetch a row of data values and send to the client
multifetch	Fetch multiple rows of data values and send to the client
plsql	Execute a PL/SQL command (Oracle only)

Interfaces which are not database interfaces do not understand SQL and the above commands will product syntax errors.

Monitoring

debug	Turn on debug messages
set progress	Turn on data retrieval progress messages
set quiet	Turn on quiet mode, to suppress translator messages
set statistics	Turn on data retrieval statistics messages

Default Symbology

set alpha	Set the alpha transparency for graphics
set approx	Set the approximation factor for curves
set brightness	Set the color intensity for graphics
set color	Set the color override for graphics
set fillstyle	Set the fill style for polygons
set linestyle	Set the line style for vectors
set markerangle	Set the angle for marker symbols
set markerheight	Set the height for marker symbols
set markerstyle	Set the style for marker symbols
set textheight	Set the height for annotations
set textstyle	Set the style for annotations
set thickness	Set the thickness for vectors
set native_symbology	Use or don't use symbology inherent in the source data.

General Data Settings

init	Initialize the client
projection	Define projection information
set group	Set group/layer information
set ipath	Set a path for entity file references
units	Define unit of measurement information

Listing and Querying

list_class	List details of the current query
list_symbology	List current symbology settings
query_extents	Query the extents of the current data source
query_tables	Query the data tables available for selection
query_version	Query the version of the translator
help	Display command help information
message_log	Direct listings/messages to a file
message	Send a user message to the client

Compression Control

set generalize	Set the line simplification tolerance
set packet	Set the network traffic buffer size
set pcompress	Set eim general packet compression
set vcompress	Set eim vector compression

Utilities

command	Send a command to the client for execution
exec	Execute a translator command script
outfile	Direct output to an eim file
reset	Perform a "soft reset" on the translator environment
clear_cache	Clear the internal object name cache
quit	Stop the translator