NAME¶
FL2INT - converts X and Y coordinates from the User Coordinate System to the
Metacode Coordinate System.
STATUS¶
Metacode units are no longer used in NCAR Graphics; thus, FL2INT is considered
an obsolete routine.
The current recognized coordinate systems are GKS world coordinates, GKS
normalized device coordinates, NCAR Graphics fractional coordinates, and NCAR
Graphics user coordinates. See the NCAR Graphics document "NCAR Graphics
Fundamentals, UNIX Version" for a description of these coordinate
systems.
FL2INT continues to be provided for compatibility of early NCAR Graphics codes.
If you are writing new code, we suggest that you use user coordinates and
fractional coordinates. The routines CUFX and CUFY will convert from user
coordinates to fractional coordinates. CFUX and CFUY will convert fractional
coordinates to user coordinates.
The following definition of the Metacode Coordinate System is included for the
purpose of interpreting and converting codes:
The metacode coordinates of a point are integers IMX and IMY between 0 and 32767
inclusive. The area addressed is a square in a "metacode space" that
is usually mapped into a square subset of the addressable area of the plotting
device. Metacode coordinates were used in calls to the routine PLOTIT and are
returned in calls to FL2INT.
SYNOPSIS¶
CALL FL2INT (PX,PY,IX,IY)
DESCRIPTION¶
- PX
- (an input expression of type REAL) is the X coordinate of a point in user
coordinates.
- PY
- (an input expression of type REAL) is the Y coordinate of a point in user
coordinates.
- IX
- (an output variable of type INTEGER) is the X coordinate of the point in
metacode coordinates.
- IY
- (an output variable of type INTEGER) is the Y coordinate of the point in
metacode coordinates.
ACCESS¶
To use FL2INT, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c,
preferably in that order.
SEE ALSO¶
Online: spps, plotit, cmfx, cmfy, cmux, cmuy, kfmx, kfmy, kmpx, kmpy, kpmx,
kpmy, kumx, kumy
Hardcopy: NCAR Graphics Fundamentals, UNIX Version; User's Guide for NCAR GKS-0A
Graphics
COPYRIGHT¶
Copyright (C) 1987-2009
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.
