Changeset 2047

Timestamp:

Oct 11, 2004, 1:43:15 PM (22 years ago)

Author:

Paul Price

Message:

Angles are to be expressed internally as radians.

Location:

trunk/doc/pslib

Files:

• ChangeLogSDRS.tex (modified) (2 diffs)
• psLibSDRS.tex (modified) (3 diffs)

trunk/doc/pslib/ChangeLogSDRS.tex

@@ -1 @@
-%%% $Id: ChangeLogSDRS.tex,v 1.32 2004-10-11 21:49:56 price Exp $
+%%% $Id: ChangeLogSDRS.tex,v 1.33 2004-10-11 23:43:15 price Exp $
 
 \subsection{Changes from version 00 to version 01}
@@ -338 +338 @@
   Gaussian, Poisson).  This obsoletes \code{psGaussianDev}, and
   impacts \code{psLibInit} (no longer needs to seed the RNG).
+\item Changed \code{psImageRotate} to use radians instead of degrees.
 \end{itemize}

trunk/doc/pslib/psLibSDRS.tex

@@ -1 @@
-%%% $Id: psLibSDRS.tex,v 1.135 2004-10-11 22:25:16 price Exp $
+%%% $Id: psLibSDRS.tex,v 1.136 2004-10-11 23:43:03 price Exp $
 \documentclass[panstarrs,spec]{panstarrs}
 
@@ -153 +153 @@
 capability.  The memory management functions, defined below, must be
 written to be thread-safe.  
+
+\subsection{Conventions}
+
+To maintain consistency throughout the library, angles shall be
+specified in radians.  In a small number of cases which we expect will
+be used heavily (i.e., \code{psSphereOffset} and trigonometric
+operations on vectors), the unit may be specified, which provides
+convenience to the user.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -2602 +2610 @@
                        psC64 exposed, psImageInterpolateMode mode);
 \end{verbatim}
-Rotate the input image by given angle, specified in degrees.  The
+Rotate the input image by given angle, specified in radians.  The
 output image must contain all of the pixels from the input image in
 their new frame.  Pixels in the output image which do not map to input