pattern_sim: Update man page, simplify --help

2 files changed, 18 insertions, 38 deletions

diff --git a/doc/man/pattern_sim.1 b/doc/man/pattern_sim.1
index a9528654..e34bf11d 100644
--- a/doc/man/pattern_sim.1
+++ b/doc/man/pattern_sim.1
@@ -120,6 +120,18 @@ Generate random crystal sizes between \fImin\fR and \fImax\fR nanometres.  These
 .PD
 Do not calculate Poisson noise.
 
+.PD 0
+.IP "\fB-s\fR \fIn\fR"
+.IP \fB--sample-spectrum=\fR\fIn\fR
+.PD
+Include \fIn\fR samples from the spectrum in the calculation.
+
+.PD 0
+.IP "\fB-x\fR \fItype\fR"
+.IP \fB--spectrum=\fR\fItype\fR
+.PD
+Use \fItype\fR of spectrum.  \fItype\fR can be one of \fBtophat\fR or \fBsase\fR.
+
 
 .SH REFLECTION LISTS
 
diff --git a/src/pattern_sim.c b/src/pattern_sim.c
index 5ea328bf..7be2acfb 100644
--- a/src/pattern_sim.c
+++ b/src/pattern_sim.c
@@ -73,54 +73,22 @@ static void show_help(const char *s)
 "                            available devices.\n"
 " -g, --geometry=<file>     Get detector geometry from file.\n"
 " -b, --beam=<file>         Get beam parameters from file.\n"
-"\n"
 " -n, --number=<N>          Generate N images.  Default 1.\n"
 "     --no-images           Do not output any HDF5 files.\n"
 " -o, --output=<filename>   Output HDF5 filename.  Default: sim.h5.\n"
-"                            If you choose to simulate more than one pattern,\n"
-"                            the filename given will be postfixed with a\n"
-"                            hyphen, the image number and '.h5'.  In this\n"
-"                            case, the default value is 'sim', such that the\n"
-"                            files produced are sim-1.h5, sim-2.h5 and so on.\n"
-" -r, --random-orientation  Use a randomly generated orientation\n"
-"                            (a new orientation will be used for each image).\n"
+" -r, --random-orientation  Use randomly generated orientations.\n"
 "     --powder=<file>       Write a summed pattern of all images simulated by\n"
 "                            this invocation as the given filename.\n"
 " -i, --intensities=<file>  Specify file containing reflection intensities\n"
 "                            (and phases) to use.\n"
 " -y, --symmetry=<sym>      The symmetry of the intensities file.\n"
-" -t, --gradients=<method>  Use <method> for the calculation of shape\n"
-"                            transform intensities.  Choose from:\n"
-"                             mosaic      : Take the intensity of the nearest\n"
-"                                           Bragg position.  This is the\n"
-"                                           fastest method and the only one\n"
-"                                           supported on the GPU.\n"
-"                             interpolate : Interpolate trilinearly between\n"
-"                                           six adjacent Bragg intensities.\n"
-"                                           This method has intermediate\n"
-"                                           accuracy.\n"
-"                             phased      : As 'interpolate', but take phase\n"
-"                                           values into account.  This is the\n"
-"                                           most accurate method, but the\n"
-"                                           slowest.\n"
-"     --really-random       Use really random numbers for the orientation and\n"
-"                            crystal size.  By default, the same sequence\n"
-"                            will be used for each new run.\n"
-"     --min-size=<s>        Generate random crystal sizes using <s> as the\n"
-"                            minimum crystal size in nm. --max-size is also\n"
-"                            required.\n"
-"     --max-size=<s>        Use <s> as the maximum crystal size in nm.\n"
-"                            --min-size is also required.\n"
+" -t, --gradients=<method>  Select method for calculation of shape transforms\n"
+"     --really-random       Seed the random number generator with /dev/urandom.\n"
+"     --min-size=<s>        Minimum crystal size in nm.\n"
+"     --max-size=<s>        Naximum crystal size in nm.\n"
 "     --no-noise            Do not calculate Poisson noise.\n"
 " -s, --sample-spectrum=<N> Use N samples from spectrum. Default 3.\n"
-" -x, --spectrum=<type>     Use <type> for the calculation of spectrum.\n"
-"                             Choose from:\n"
-"                             tophat :      Tophat spectrum. Bandwidth is\n"
-"                                           taken from beam parameters.\n"
-"                             SASE      :   SASE spectrum. Random SASE pulse \n"
-"                                           is generated from a model.\n"
-"                                           Bandwidth is taken from beam \n"
-"                                           parameters.\n"
+" -x, --spectrum=<type>     Type of spectrum to simulate.\n"
 );
 }