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<title>Usage</title>
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<a href="plot3d-examples.html">Next</a> <a href="plot3d.html">Previous</a> <a href="plot3d.html">Up</a> <a href="index.html">Contents</a> <br> <b>Next: </b><a href="plot3d-examples.html">Examples</a><br>
<b>Up: </b><a href="plot3d.html">plot3d: Old-style 3D Scatter Plot</a><br>
<b>Previous: </b><a href="plot3d.html">plot3d: Old-style 3D Scatter Plot</a><br>
<hr>
<h3><a name="plot3d-usage">B.13.1 Usage</a></h3>
<p>The usage of <code>plot3d</code> is
<pre>
stilts <stilts-flags> plot3d xpix=<int-value> ypix=<int-value>
font=dialog|serif|... fontsize=<int-value>
fontstyle=plain|bold|italic|bold-italic
legend=true|false title=<value>
omode=swing|out|cgi|discard|auto
out=<out-file>
ofmt=png|png-transp|gif|jpeg|pdf|eps|eps-gzip
inN=<table> ifmtN=<in-format>
istreamN=true|false cmdN=<cmds> xdataN=<expr>
ydataN=<expr> zdataN=<expr> auxdataN=<expr>
xlo=<float-value> ylo=<float-value>
zlo=<float-value> auxlo=<float-value>
xhi=<float-value> yhi=<float-value>
zhi=<float-value> auxhi=<float-value>
xlog=true|false ylog=true|false
zlog=true|false auxlog=true|false
xflip=true|false yflip=true|false
zflip=true|false auxflip=true|false
xlabel=<value> ylabel=<value> zlabel=<value>
auxlabel=<value>
xerrorN=<expr>|[<lo-expr>],[<hi-expr>]
yerrorN=<expr>|[<lo-expr>],[<hi-expr>]
zerrorN=<expr>|[<lo-expr>],[<hi-expr>]
auxshader=rainbow|pastel|... txtlabelN=<value>
subsetNS=<expr> nameNS=<value>
colourNS=<rrggbb>|red|blue|...
shapeNS=filled_circle|open_circle|...
sizeNS=<int-value> transparencyNS=<int-value>
lineNS=DotToDot|LinearRegression
linewidthNS=<int-value>
dashNS=dot|dash|...|<a,b,...>
hideNS=true|false
errstyleNS=lines|capped_lines|...
grid=true|false antialias=true|false
sequence=<suffix>,<suffix>,...
fog=<float-value> phi=<float-value>
theta=<float-value>
</pre>
If you don't have the <code>stilts</code> script installed,
write "<code>java -jar stilts.jar</code>" instead of
"<code>stilts</code>" - see <a href="invoke.html">Section 3</a>.
The available <code><stilts-flags></code> are listed
in <a href="stilts-flags.html">Section 2.1</a>.
For programmatic invocation, the Task class for this
command is <code>uk.ac.starlink.ttools.task.TablePlot3D</code>.
</p>
<p>Parameter values are assigned on the command line
as explained in <a href="task-args.html">Section 2.3</a>.
They are as follows:
</p>
<p>
<dl>
<dt><strong><code>antialias = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>Controls whether lines are drawn using antialiasing,
where applicable.
If lines are drawn to a bitmapped-type graphics output format
setting this parameter to true smooths the lines out by
using gradations of colour for diagonal lines, and setting it
false simply sets each pixel in the line to on or off.
For vector-type graphics output formats, or for cases in which
no diagonal lines are drawn, the setting of this parameter
has no effect.
Setting it true may slow the plot down slightly.
<p>[Default: <code>true</code>]
</p>
</dd>
<dt><strong><code>auxdataN = <expr></code> <em>(String)</em></strong></dt>
<dd>Gives a column name or expression for the aux
axis data for table N.
The expression is a numeric algebraic expression
based on column names
as described in <a href="jel.html">Section 10</a>
</dd>
<dt><strong><code>auxflip = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>If set true, the scale on the aux axis
will increase in the opposite sense from usual
(e.g. right to left rather than left to right).
<p>[Default: <code>false</code>]
</p>
</dd>
<dt><strong><code>auxhi = <float-value></code> <em>(Double)</em></strong></dt>
<dd>The upper limit for the plotted aux axis.
If not set, a value will be chosen which is high enough
to accommodate all the data.
</dd>
<dt><strong><code>auxlabel = <value></code> <em>(String)</em></strong></dt>
<dd>Specifies a label to be used for annotating axis aux.
A default values based on the plotted data will be used
if no value is supplied for this parameter.
</dd>
<dt><strong><code>auxlo = <float-value></code> <em>(Double)</em></strong></dt>
<dd>The lower limit for the plotted aux axis.
If not set, a value will be chosen which is low enough
to accommodate all the data.
</dd>
<dt><strong><code>auxlog = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>If false (the default), the scale on the aux
axis is linear; if true it is logarithmic.
<p>[Default: <code>false</code>]
</p>
</dd>
<dt><strong><code>auxshader = rainbow|pastel|...</code> <em>(<a href="http://andromeda.star.bris.ac.uk/starjavadocs/uk/ac/starlink/ttools/plot/Shader.html">Shader</a>)</em></strong></dt>
<dd>Determines how data from auxiliary axes will be displayed.
Generally this is some kind of colour ramp.
These are the available <em>colour fixing</em> options:
<ul>
<li><code>rainbow</code></li>
<li><code>pastel</code></li>
<li><code>standard</code></li>
<li><code>heat</code></li>
<li><code>colour</code></li>
<li><code>hue</code></li>
<li><code>greyscale</code></li>
<li><code>red-blue</code></li>
</ul>
and these are the available <em>colour modifying</em> options:
<ul>
<li><code>hsv_h</code></li>
<li><code>hsv_s</code></li>
<li><code>hsv_v</code></li>
<li><code>intensity</code></li>
<li><code>rgb_red</code></li>
<li><code>rgb_green</code></li>
<li><code>rgb_blue</code></li>
<li><code>yuv_y</code></li>
<li><code>yuv_u</code></li>
<li><code>yuv_v</code></li>
<li><code>transparency</code></li>
</ul>
<p>[Default: <code>rainbow</code>]
</p>
</dd>
<dt><strong><code>cmdN = <cmds></code> <em>(<a href="http://andromeda.star.bris.ac.uk/starjavadocs/uk/ac/starlink/ttools/filter/ProcessingStep.html">ProcessingStep[]</a>)</em></strong></dt>
<dd>Specifies processing to be performed on
the table.
The value of this parameter is one or more of the filter
commands described in <a href="filterSteps.html">Section 6.1</a>.
If more than one is given, they must be separated by
semicolon characters (";").
This parameter can be repeated multiple times on the same
command line to build up a list of processing steps.
The sequence of commands given in this way
defines the processing pipeline which is performed on the table.
<p>Commands may alteratively be supplied in an external file,
by using the indirection character '@'.
Thus a value of "<code>@filename</code>"
causes the file <code>filename</code> to be read for a list
of filter commands to execute. The commands in the file
may be separated by newline characters and/or semicolons.
</p>
</dd>
<dt><strong><code>colourNS = <rrggbb>|red|blue|...</code> <em>(<a href="http://docs.oracle.com/javase/6/docs/api/java/awt/Color.html">Color</a>)</em></strong></dt>
<dd>Defines the colour of markers plotted.
The value may be a 6-digit hexadecimal number giving
red, green and blue intensities,
e.g. "<code>ff00ff</code>" for magenta.
Alternatively it may be the name of one of the
pre-defined colours.
These are currently
red, blue, green, grey, magenta, cyan, orange, pink, yellow, black and white.
<p>For most purposes, either the American or the British spelling
is accepted for this parameter name.
</p>
</dd>
<dt><strong><code>dashNS = dot|dash|...|<a,b,...></code> <em>(float[])</em></strong></dt>
<dd>Defines the dash style for any lines drawn in data set
NS
To generate a dashed line the value may be
one of the named dash types:
<ul>
<li><code>dot</code></li>
<li><code>dash</code></li>
<li><code>longdash</code></li>
<li><code>dotdash</code></li>
</ul>
or may be a comma-separated string of on/off length values such as
"<code>4,2,8,2</code>".
A <code>null</code> value indicates a solid line.
<p>Only has an effect if the
<code>lineNS</code>
parameter is set to draw lines.
</p>
</dd>
<dt><strong><code>errstyleNS = lines|capped_lines|...</code> <em>(<a href="http://andromeda.star.bris.ac.uk/starjavadocs/uk/ac/starlink/ttools/plot/ErrorRenderer.html">ErrorRenderer</a>)</em></strong></dt>
<dd>Defines the way in which error bars (or ellipses, or...)
will be represented for data set NS
if errors are being displayed.
The following options are available:
<ul>
<li><code>none</code></li>
<li><code>lines</code></li>
<li><code>capped_lines</code></li>
<li><code>caps</code></li>
<li><code>arrows</code></li>
<li><code>cuboid</code></li>
<li><code>ellipse</code></li>
<li><code>crosshair_ellipse</code></li>
<li><code>rectangle</code></li>
<li><code>crosshair_rectangle</code></li>
<li><code>filled_ellipse</code></li>
<li><code>filled_rectangle</code></li>
</ul>
<p>[Default: <code>lines</code>]
</p>
</dd>
<dt><strong><code>fog = <float-value></code> <em>(Double)</em></strong></dt>
<dd>Sets the level of fogging used to provide a visual
indication of depth.
Object plotted further away from the viewer appear more
washed-out by a white fog.
The default value gives a bit of fogging; increase it to
make the fog thicker, or set to zero if no fogging is required.
<p>[Default: <code>1.0</code>]
</p>
</dd>
<dt><strong><code>font = dialog|serif|...</code> <em>(String)</em></strong></dt>
<dd>Determines the font that will be used for textual annotation
of the plot, including axes etc.
At least the following fonts will be available:
<ul>
<li><code>serif</code></li>
<li><code>sansserif</code></li>
<li><code>monospaced</code></li>
<li><code>dialog</code></li>
<li><code>dialoginput</code></li>
</ul>
as well as a range of system-dependent fonts,
possibly including
<ul>
<li><code>dejavu_sans</code></li>
<li><code>dejavu_sans_mono</code></li>
<li><code>dejavu_serif</code></li>
</ul>
<p>[Default: <code>dialog</code>]
</p>
</dd>
<dt><strong><code>fontsize = <int-value></code> <em>(Integer)</em></strong></dt>
<dd>Sets the font size used for plot annotations.
<p>[Default: <code>12</code>]
</p>
</dd>
<dt><strong><code>fontstyle = plain|bold|italic|bold-italic</code> <em>(Integer)</em></strong></dt>
<dd>Gives a style in which the font is to be applied for
plot annotations.
Options are
<code>plain</code>,
<code>bold</code>,
<code>italic</code> and
<code>bold-italic</code>.
<p>[Default: <code>plain</code>]
</p>
</dd>
<dt><strong><code>grid = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>If true, grid lines are drawn on the plot.
If false, they are absent.
<p>[Default: <code>true</code>]
</p>
</dd>
<dt><strong><code>hideNS = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>Indicates whether the actual markers plotted for each point
should be hidden.
Normally this is false, but you may want to set it to true
if the point positions are being revealed in some other way,
for instance by error markers or lines drawn between them.
<p>[Default: <code>false</code>]
</p>
</dd>
<dt><strong><code>ifmtN = <in-format></code> <em>(String)</em></strong></dt>
<dd>Specifies the format of the input table as specified by parameter <code>inN</code>.
The known formats are listed in <a href="inFormats.html">Section 5.2.1</a>.
This flag can be used if you know what format your
table is in.
If it has the special value
<code>(auto)</code> (the default),
then an attempt will be
made to detect the format of the table automatically.
This cannot always be done correctly however, in which case
the program will exit with an error explaining which
formats were attempted.
<p>[Default: <code>(auto)</code>]
</p>
</dd>
<dt><strong><code>inN = <table></code> <em>(<a href="http://www.starlink.ac.uk/stil/javadocs/uk/ac/starlink/table/StarTable.html">StarTable</a>)</em></strong></dt>
<dd>The location of the input table.
This may take one of the following forms:
<ul>
<li>A filename.</li>
<li>A URL.</li>
<li>The special value "<code>-</code>",
meaning standard input.
In this case the input format must be given explicitly
using the <code>ifmtN</code>
parameter.
Note that not all formats can be streamed in this way.
</li>
<li>A system command line with
either a "<code><</code>" character at the start,
or a "<code>|</code>" character at the end
("<code><syscmd</code>" or
"<code>syscmd|</code>").
This executes the given pipeline and reads from its
standard output.
This will probably only work on unix-like systems.
</li>
</ul>
In any case, compressed data in one of the supported compression
formats (gzip, Unix compress or bzip2) will be decompressed
transparently.
</dd>
<dt><strong><code>istreamN = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>If set true, the input table
specified by the <code>inN</code> parameter
will be read as a stream.
It is necessary to give the
<code>ifmtN</code> parameter
in this case.
Depending on the required operations and processing mode,
this may cause the read to fail (sometimes it is necessary
to read the table more than once).
It is not normally necessary to set this flag;
in most cases the data will be streamed automatically
if that is the best thing to do.
However it can sometimes result in less resource usage when
processing large files in certain formats (such as VOTable).
<p>[Default: <code>false</code>]
</p>
</dd>
<dt><strong><code>legend = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>Determines whether a legend showing which plotting style is
used for each data set.
Defaults to true if there is more than one set, false otherwise.
</dd>
<dt><strong><code>lineNS = DotToDot|LinearRegression</code> <em>(<a href="http://andromeda.star.bris.ac.uk/starjavadocs/uk/ac/starlink/ttools/plot/MarkStyle.Line.html">Line</a>)</em></strong></dt>
<dd>Determines what line if any will be plotted along with the
data points.
The options are:
<ul>
<li><code>null</code>:
No line is plotted.
</li>
<li><code>DotToDot</code>:
Each point is joined to the next one in sequence
by a straight line.
</li>
<li><code>LinearRegression</code>:
A linear regression line is plotted based on all the points
which are visible in the plot.
Note that the regression coefficients take no account of
points out of the visible range.
</li>
</ul>
</dd>
<dt><strong><code>linewidthNS = <int-value></code> <em>(Integer)</em></strong></dt>
<dd>Sets the line width in pixels for any lines drawn in data set
NS.
<p>Only has an effect if the
<code>lineNS</code>
parameter is set to draw lines.
</p>
<p>[Default: <code>1</code>]
</p>
</dd>
<dt><strong><code>nameNS = <value></code> <em>(String)</em></strong></dt>
<dd>Provides a name to use for a subset with the symbolic label
NS.
This name will be used for display in the legend,
if one is displayed.
</dd>
<dt><strong><code>ofmt = png|png-transp|gif|jpeg|pdf|eps|eps-gzip</code> <em>(<a href="http://andromeda.star.bris.ac.uk/starjavadocs/uk/ac/starlink/ttools/plot/GraphicExporter.html">GraphicExporter</a>)</em></strong></dt>
<dd>Graphics format in which the plot is written to
the output file, see <a href="graphicExporter.html">Section 8.6</a>.
One of:
<ul>
<li><code>png</code>: PNG
</li>
<li><code>png-transp</code>: PNG with transparent background
</li>
<li><code>gif</code>: GIF
</li>
<li><code>jpeg</code>: JPEG
</li>
<li><code>pdf</code>: Portable Document Format
</li>
<li><code>eps</code>: Encapsulated PostScript
</li>
<li><code>eps-gzip</code>: Gzipped Encapsulated PostScript
</li>
</ul>
May default to a sensible value depending on the
filename given by <code>out</code>.
</dd>
<dt><strong><code>omode = swing|out|cgi|discard|auto</code> <em>(<a href="http://andromeda.star.bris.ac.uk/starjavadocs/uk/ac/starlink/ttools/plottask/PaintMode.html">PaintMode</a>)</em></strong></dt>
<dd>Determines how the drawn plot will be output, see <a href="paintMode.html">Section 8.5</a>.
<ul>
<li><code><a href="paintmode-swing.html">swing</a></code>:
Plot will be displayed in a window on the screen.
This plot is "live"; it can be resized and (except for old-style plots)
navigated around with mouse actions in the same way as plots in TOPCAT.
</li>
<li><code><a href="paintmode-out.html">out</a></code>:
Plot will be written to a file given by <code>out</code> using the graphics format given by <code><a href="graphicExporter.html">ofmt</a></code>.
</li>
<li><code><a href="paintmode-cgi.html">cgi</a></code>:
Plot will be written in a way suitable for CGI use direct from a web server.
The output is in the graphics format given by <code><a href="graphicExporter.html">ofmt</a></code>,
preceded by a suitable "Content-type" declaration.
</li>
<li><code><a href="paintmode-discard.html">discard</a></code>:
Plot is drawn, but discarded. There is no output.
</li>
<li><code><a href="paintmode-auto.html">auto</a></code>:
Behaves as <code><a href="paintmode-swing.html">swing</a></code> or <code><a href="paintmode-out.html">out</a></code> mode depending on presence of <code>out</code> parameter
</li>
</ul>
<p>[Default: <code>auto</code>]
</p>
</dd>
<dt><strong><code>out = <out-file></code> <em>(uk.ac.starlink.util.Destination)</em></strong></dt>
<dd>The location of the output file. This is usually a filename
to write to.
If it is equal to the special value "-"
the output will be written to standard output.
</dd>
<dt><strong><code>phi = <float-value></code> <em>(Double)</em></strong></dt>
<dd>Angle in degrees through which the 3D plot is rotated
abound the Z axis prior to drawing.
<p>[Default: <code>30.0</code>]
</p>
</dd>
<dt><strong><code>sequence = <suffix>,<suffix>,...</code> <em>(String[])</em></strong></dt>
<dd>Can be used to control the sequence in which different
datasets and subsets are plotted.
This will affect which symbols are plotted on top of,
and so potentially obscure,
which other ones.
The value of this parameter is a comma-separated list of the
"<code>NS</code>"
suffixes which appear on the
parameters which apply to subsets.
The sets which are named
will be plotted in order, so the first-named one will be
at the bottom (most likely to be obscured).
Note that if this parameter is supplied, then only those sets
which are named will be plotted,
so this parameter may also be used to restrict which plots appear
(though it may not be the most efficient way of doing this).
If no explicit value is supplied for this parameter,
sets will be plotted in some sequence decided by STILTS
(probably alphabetic by suffix).
</dd>
<dt><strong><code>shapeNS = filled_circle|open_circle|...</code> <em>(<a href="http://andromeda.star.bris.ac.uk/starjavadocs/uk/ac/starlink/ttools/plot/MarkShape.html">MarkShape</a>)</em></strong></dt>
<dd>Defines the shapes for the markers that are plotted in
data set NS.
The following shapes are available:
<ul>
<li><code>filled_circle</code></li>
<li><code>open_circle</code></li>
<li><code>cross</code></li>
<li><code>x</code></li>
<li><code>open_square</code></li>
<li><code>open_diamond</code></li>
<li><code>open_triangle_up</code></li>
<li><code>open_triangle_down</code></li>
<li><code>filled_square</code></li>
<li><code>filled_diamond</code></li>
<li><code>filled_triangle_up</code></li>
<li><code>filled_triangle_down</code></li>
</ul>
</dd>
<dt><strong><code>sizeNS = <int-value></code> <em>(Integer)</em></strong></dt>
<dd>Defines the marker size in pixels for markers plotted in
data set NS.
If the value is negative, an attempt will be made to use a
suitable size according to how many points there are to be
plotted.
<p>[Default: <code>-1</code>]
</p>
</dd>
<dt><strong><code>subsetNS = <expr></code> <em>(String)</em></strong></dt>
<dd>Gives the selection criterion for the subset labelled
"<code>NS</code>".
This is a boolean expression which may be the name of
a boolean-valued column or any other boolean-valued expression.
Rows for which the expression evaluates true will be included
in the subset, and those for which it evaluates false will not.
</dd>
<dt><strong><code>theta = <float-value></code> <em>(Double)</em></strong></dt>
<dd>Angle in degrees through which the 3D plot is rotated
towards the viewer
(i.e. about the horizontal axis of the viewing plane)
prior to drawing.
<p>[Default: <code>15.0</code>]
</p>
</dd>
<dt><strong><code>title = <value></code> <em>(String)</em></strong></dt>
<dd>A one-line title to display at the top of the plot.
</dd>
<dt><strong><code>transparencyNS = <int-value></code> <em>(Integer)</em></strong></dt>
<dd>Determines the transparency of plotted markers
for data set NS.
A value of <code><n></code> means that opacity is only
achieved (the background is only blotted out)
when <code><n></code> pixels of this colour have been
plotted on top of each other.
<p>The minimum value is 1, which means opaque markers.
</p>
</dd>
<dt><strong><code>txtlabelN = <value></code> <em>(String)</em></strong></dt>
<dd>Gives an expression which will label each plotted point.
If given, the text (or number) resulting from evaluating
the expression will be written near each point which is
plotted.
</dd>
<dt><strong><code>xdataN = <expr></code> <em>(String)</em></strong></dt>
<dd>Gives a column name or expression for the x
axis data for table N.
The expression is a numeric algebraic expression
based on column names
as described in <a href="jel.html">Section 10</a>
</dd>
<dt><strong><code>xerrorN = <expr>|[<lo-expr>],[<hi-expr>]</code> <em>(String)</em></strong></dt>
<dd>Gives expressions for the errors on X
coordinates for table N.
The following forms are permitted:
<ul>
<li><code><expr></code>: symmetric error value
</li>
<li><code><lo-expr>,<hi-expr></code>:distinct lower and upper error values
</li>
<li><code><lo-expr>,</code>: lower error value only
</li>
<li><code>,<hi-expr></code>: upper error value only
</li>
<li><code>null</code>: no errors
</li>
</ul>
The expression in each case is a numeric algebraic expression
based on column names
as described in <a href="jel.html">Section 10</a>.
</dd>
<dt><strong><code>xflip = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>If set true, the scale on the x axis
will increase in the opposite sense from usual
(e.g. right to left rather than left to right).
<p>[Default: <code>false</code>]
</p>
</dd>
<dt><strong><code>xhi = <float-value></code> <em>(Double)</em></strong></dt>
<dd>The upper limit for the plotted x axis.
If not set, a value will be chosen which is high enough
to accommodate all the data.
</dd>
<dt><strong><code>xlabel = <value></code> <em>(String)</em></strong></dt>
<dd>Specifies a label to be used for annotating axis x.
A default values based on the plotted data will be used
if no value is supplied for this parameter.
</dd>
<dt><strong><code>xlo = <float-value></code> <em>(Double)</em></strong></dt>
<dd>The lower limit for the plotted x axis.
If not set, a value will be chosen which is low enough
to accommodate all the data.
</dd>
<dt><strong><code>xlog = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>If false (the default), the scale on the x
axis is linear; if true it is logarithmic.
<p>[Default: <code>false</code>]
</p>
</dd>
<dt><strong><code>xpix = <int-value></code> <em>(Integer)</em></strong></dt>
<dd>The width of the output graphic in pixels.
<p>[Default: <code>300</code>]
</p>
</dd>
<dt><strong><code>ydataN = <expr></code> <em>(String)</em></strong></dt>
<dd>Gives a column name or expression for the y
axis data for table N.
The expression is a numeric algebraic expression
based on column names
as described in <a href="jel.html">Section 10</a>
</dd>
<dt><strong><code>yerrorN = <expr>|[<lo-expr>],[<hi-expr>]</code> <em>(String)</em></strong></dt>
<dd>Gives expressions for the errors on Y
coordinates for table N.
The following forms are permitted:
<ul>
<li><code><expr></code>: symmetric error value
</li>
<li><code><lo-expr>,<hi-expr></code>:distinct lower and upper error values
</li>
<li><code><lo-expr>,</code>: lower error value only
</li>
<li><code>,<hi-expr></code>: upper error value only
</li>
<li><code>null</code>: no errors
</li>
</ul>
The expression in each case is a numeric algebraic expression
based on column names
as described in <a href="jel.html">Section 10</a>.
</dd>
<dt><strong><code>yflip = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>If set true, the scale on the y axis
will increase in the opposite sense from usual
(e.g. right to left rather than left to right).
<p>[Default: <code>false</code>]
</p>
</dd>
<dt><strong><code>yhi = <float-value></code> <em>(Double)</em></strong></dt>
<dd>The upper limit for the plotted y axis.
If not set, a value will be chosen which is high enough
to accommodate all the data.
</dd>
<dt><strong><code>ylabel = <value></code> <em>(String)</em></strong></dt>
<dd>Specifies a label to be used for annotating axis y.
A default values based on the plotted data will be used
if no value is supplied for this parameter.
</dd>
<dt><strong><code>ylo = <float-value></code> <em>(Double)</em></strong></dt>
<dd>The lower limit for the plotted y axis.
If not set, a value will be chosen which is low enough
to accommodate all the data.
</dd>
<dt><strong><code>ylog = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>If false (the default), the scale on the y
axis is linear; if true it is logarithmic.
<p>[Default: <code>false</code>]
</p>
</dd>
<dt><strong><code>ypix = <int-value></code> <em>(Integer)</em></strong></dt>
<dd>The height of the output graphic in pixels.
<p>[Default: <code>300</code>]
</p>
</dd>
<dt><strong><code>zdataN = <expr></code> <em>(String)</em></strong></dt>
<dd>Gives a column name or expression for the z
axis data for table N.
The expression is a numeric algebraic expression
based on column names
as described in <a href="jel.html">Section 10</a>
</dd>
<dt><strong><code>zerrorN = <expr>|[<lo-expr>],[<hi-expr>]</code> <em>(String)</em></strong></dt>
<dd>Gives expressions for the errors on Z
coordinates for table N.
The following forms are permitted:
<ul>
<li><code><expr></code>: symmetric error value
</li>
<li><code><lo-expr>,<hi-expr></code>:distinct lower and upper error values
</li>
<li><code><lo-expr>,</code>: lower error value only
</li>
<li><code>,<hi-expr></code>: upper error value only
</li>
<li><code>null</code>: no errors
</li>
</ul>
The expression in each case is a numeric algebraic expression
based on column names
as described in <a href="jel.html">Section 10</a>.
</dd>
<dt><strong><code>zflip = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>If set true, the scale on the z axis
will increase in the opposite sense from usual
(e.g. right to left rather than left to right).
<p>[Default: <code>false</code>]
</p>
</dd>
<dt><strong><code>zhi = <float-value></code> <em>(Double)</em></strong></dt>
<dd>The upper limit for the plotted z axis.
If not set, a value will be chosen which is high enough
to accommodate all the data.
</dd>
<dt><strong><code>zlabel = <value></code> <em>(String)</em></strong></dt>
<dd>Specifies a label to be used for annotating axis z.
A default values based on the plotted data will be used
if no value is supplied for this parameter.
</dd>
<dt><strong><code>zlo = <float-value></code> <em>(Double)</em></strong></dt>
<dd>The lower limit for the plotted z axis.
If not set, a value will be chosen which is low enough
to accommodate all the data.
</dd>
<dt><strong><code>zlog = true|false</code> <em>(Boolean)</em></strong></dt>
<dd>If false (the default), the scale on the z
axis is linear; if true it is logarithmic.
<p>[Default: <code>false</code>]
</p>
</dd>
</dl>
</p>
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<hr><i>STILTS - Starlink Tables Infrastructure Library Tool Set<br>Starlink User Note256<br>STILTS web page:
<a href="http://www.starlink.ac.uk/stilts/">http://www.starlink.ac.uk/stilts/</a><br>Author email:
<a href="mailto:m.b.taylor@bristol.ac.uk">m.b.taylor@bristol.ac.uk</a><br>Mailing list:
<a href="mailto:topcat-user@jiscmail.ac.uk">topcat-user@jiscmail.ac.uk</a><br></i></body>
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