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authorKarl Berry <karl@freefriends.org>2006-01-09 00:49:07 +0000
committerKarl Berry <karl@freefriends.org>2006-01-09 00:49:07 +0000
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+%%%%%%%%%%%%%%%%%%%%%%%% fullpict.doc %%%%%%%%%%%%%%%%%%%%%%%%%
+%% Bruce Shawyer -- March 2001 -- bshawyer@math.mun.ca %%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+This is an updated version of the previous Feb 99 and March 96 documents,
+containing information on the new an improved fullpict.sty
+
+Additional macros, making use of the size of the scaled picture box, are:
+
+\xaxis --- draws a vector just longer than the axis length
+\yaxis --- draws a vector just longer than the axis length
+\axes --- draws vectors just longer than the axes lengths
+\xticks{#1}[#2] --- \#1 -- gap between ticks,
+ --- \#2 -- length of tick -- default value is 1
+\yticks{#1}[#2] --- \#1 -- gap between ticks,
+ --- \#2 -- length of tick -- default value is 1
+\ticks{#1}[#2] --- \#1 -- gap between ticks,
+ --- \#2 -- length of tick -- default value is 1
+\xnums{#1}[#2] --- \#1 -- gap between numbers,
+ --- \#2 -- dist below axis -- default value is .25
+\ynums{#1}[#2] --- \#1 -- gap between numbers,
+ --- \#2 -- dist to left of axis -- default value is .25
+\nums{#1}[#2] --- \#1 -- gap between numbers,
+ --- \#2 -- dist from axis -- default value is .25
+\origin{#1} --- \#1 -- size of circle centred on the origin
+
+======================= February 99 file =====================
+
+This is an updated version of the previous March 96 document,
+containing information on the new an improved fullpict.sty
+
+There is a new environment --- scaledpicture
+
+This enhances the previous enviroment scalepicture in that it
+works properly inside tabular and minipage environments, and also
+choose at appropriate font size for the scale of the picture.
+
+New commands for the placement of labels are included. This removes
+the enormous amount of guesswork previously required to place a
+label appropriately on a diagram. Geographic north, south, east
+and west are used.
+
+They are:
+ \nput(x,y){label} - places the label north of (above) the point (x,y)
+ \sput(x,y){label} - places the label south of (below) the point (x,y)
+ \eput(x,y){label} - places the label east (to the right) of the point (x,y)
+ \wput(x,y){label} - places the label west (to the left) of the point (x,y)
+ \neput(x,y){label}
+ \seput(x,y){label}
+ \nwput(x,y){label}
+ \swput(x,y){label}
+A general form is available:
+ \angleput{angle}[radius] (x,y){label}
+ angle in degrees, between -360 and +360
+ radius [optional - default 1] to adjust the distance from the point (x,y)
+ (x,y) the coordinates of the point
+ label the label
+
+I and my co-workers have found that these macros save much time.
+
+For the information of those interested in how the angle works,
+a polygon of 24 sides is used instead of a circle. This avoids
+trigonometry, for linear functions give the sides. The difference
+between a true circle and this polygon become noticeable only for
+large values of radius , which are unlikely to be used.
+
+========================= March 96 file =============================
+I make a lot of use of the \LaTeX picture environment, in various
+documents with different text widths. Also, I teach \LaTeX as
+part of a course that involves writing a report on a mathematical
+experiment. The greatest difficulty is choosing an appropriate
+\unitlength so that the picture fits nicely on the page. Hence the
+genesis of ``fullpict.sty''.
+
+In order that a picture not fill up too much of the width of the
+printed line, I chose 90% of that width because that seemed to be
+most pleasing to the eye. The macro provides three new picture
+environment that behave exactly like the \LaTeX picture
+environment.
+
+The advantage is the there is no need to preselect \unitlength. The
+appropriate value for \unitlength is calculated from the x--length
+given to the picture.
+
+The three environments
+
+1. \begin{fullpict}(a,b)[(c,d)]
+ ...
+ \end{fullpict}
+
+ As in the picture environment, the (c,d) is optional and
+ defaults to (0,0) if not given.
+
+ This gives a picture 90% of the text width.
+
+2. \begin{halfpict}(a,b)[(c,d)]
+ ...
+ \end{halfpict}
+
+ As in the picture environment, the (c,d) is optional and
+ defaults to (0,0) if not given.
+
+ This gives a picture 45% of the text width.
+
+3. \begin{scalepict}{percent}(a,b)[(c,d)]
+ ...
+ \end{scalepict}
+
+ As in the picture environment, the (c,d) is optional and
+ defaults to (0,0) if not given.
+
+ A number must replace ``percent''. This is in the range:
+
+ 0 < percent < 112
+
+ otherwise the picture will exceed the text width. A percent
+ of 100 gives the same as ``fullpict'', and a percent of 50
+ gives the same as ``halfpict''.
+
+
+Also available for other use is a macro ``\goodunit''. This
+calculates the appropriate unit length in the above environments.