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-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - D. Alphabetic listing of commands</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_8.html">previous</A>, <A HREF="texdraw_10.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC39" HREF="texdraw_toc.html#TOC39">D. Alphabetic listing of commands</A></H1>
-<P>
-<A NAME="IDX186"></A>
-
-
-<DL COMPACT>
-
-<DT><CODE>\arrowheadsize l:<VAR>length</VAR> w:<VAR>width</VAR></CODE>
-<DD>
-Set the arrowhead size to be <VAR>length</VAR> units long and <VAR>width</VAR>
-units wide. The width is measured across the "base" of the arrowhead.
-The initial arrowhead size has a <VAR>length</VAR> of 0.16 inches and a
-<VAR>width</VAR> of 0.08 inches.
-
-<DT><CODE>\arrowheadtype t:<VAR>type</VAR></CODE>
-<DD>
-Set the arrowhead type to <VAR>type</VAR>, where <VAR>type</VAR> is one of
-<CODE>F</CODE>, <CODE>T</CODE>, <CODE>W</CODE>, <CODE>V</CODE>, or <CODE>H</CODE>. There are two
-kinds of arrowheads. The first kind is a triangle. There are 3
-variants: type <CODE>T</CODE> is an empty triangle, type <CODE>F</CODE> is a filled
-triangle (using the current gray level for lines), type <CODE>W</CODE> is a
-triangle filled with white. The second kind of arrowhead is an open
-ended Vee. There are 2 variants: type <CODE>V</CODE> has the stem continue to
-the tip, type <CODE>H</CODE> has the stem stop at the base of the arrowhead.
-The initial arrowhead type is <CODE>T</CODE>.
-
-<DT><CODE>\avec (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-Draw a line with an arrowhead from the current position to
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>. The new current position is <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>. The arrowhead is aligned with the line, with the tip at
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.
-
-<DT><CODE>\begin{texdraw}</CODE>
-<DD>
-Start a TeXdraw drawing. The drawing is terminated with an
-<CODE>\end{texdraw}</CODE> command. This command is for use with LaTeX.
-
-<DT><CODE>\bsegment</CODE>
-<DD>
-Start a drawing segment. The coordinate system is shifted such that the
-current position corresponds to the coordinate <CODE>(0 0)</CODE>. Changes to
-scaling, position and line parameters stay local to the drawing segment.
-
-<DT><CODE>\btexdraw</CODE>
-<DD>
-Start a TeXdraw drawing. The drawing is terminated with an
-<CODE>\etexdraw</CODE> command.
-
-<DT><CODE>\centertexdraw { ... }</CODE>
-<DD>
-Center a TeXdraw box. The argument contains TeXdraw commands.
-The resulting box has the horizontal size <CODE>\hsize</CODE> and height equal
-to the height of the drawing.
-
-<DT><CODE>\clvec (<VAR>x1</VAR> <VAR>y1</VAR>)(<VAR>x2</VAR> <VAR>y2</VAR>)(<VAR>x3</VAR> <VAR>y3</VAR>)</CODE>
-<DD>
-Draw a Bezier curve from the current position to the coordinate
-<CODE>(<VAR>x3</VAR> <VAR>y3</VAR>)</CODE> which becomes the new current position. The
-coordinates <CODE>(<VAR>x1</VAR> <VAR>y1</VAR>)</CODE> and <CODE>(<VAR>x2</VAR> <VAR>y2</VAR>)</CODE>
-serve as control points for the curve. Only the last coordinate given
-is used to update the size of the drawing.
-
-<DT><CODE>\drawbb</CODE>
-<DD>
-Draw a ruled box around the effective size of a drawing produced by
-TeXdraw commands.
-
-<DT><CODE>\drawdim <VAR>dim</VAR></CODE>
-<DD>
-Set the units to <VAR>dim</VAR>. The argument <VAR>dim</VAR> can be any valid
-TeX dimension unit. The units are used to interpret coordinate
-values. Examples of valid units: <CODE>cm</CODE>, <CODE>mm</CODE>, <CODE>in</CODE>,
-<CODE>pt</CODE>, and <CODE>bp</CODE>.
-
-<DT><CODE>\end{texdraw}</CODE>
-<DD>
-End a TeXdraw drawing started with a <CODE>\begin{texdraw}</CODE>
-command. The resulting TeXdraw drawing is placed in a box with
-height equal to the height of the drawing and width equal to the width
-of the drawing. The depth of the box is zero. This command is for use
-with LaTeX.
-
-<DT><CODE>\esegment</CODE>
-<DD>
-End a drawing segment. The current position in effect before the
-corresponding <CODE>\bsegment</CODE> command is restored. The scaling and
-line parameter values revert to those in effect before the corresponding
-<CODE>\bsegment</CODE> was invoked.
-
-<DT><CODE>\etexdraw</CODE>
-<DD>
-End a TeXdraw drawing started with a <CODE>\btexdraw</CODE> command. The
-resulting TeXdraw drawing is placed in a box with height equal to the
-height of the drawing and width equal to the width of the drawing. The
-depth of the box is zero.
-
-<DT><CODE>\everytexdraw { ... }</CODE>
-<DD>
-Specify TeXdraw commands to be executed at the beginning of every
-TeXdraw drawing.
-
-<DT><CODE>\fcir f:<VAR>level</VAR> r:<VAR>radius</VAR></CODE>
-<DD>
-Draw a filled circle with center at the current position. The radius is
-specified by <VAR>radius</VAR>. The circle is painted with the gray level
-specified by <VAR>level</VAR>. A gray level of 1 corresponds to white, with
-decreasing values getting darker. The level 0 is full black. This
-command does not draw a line along the circumference. The drawing size
-is increased if necessary to contain the circle.
-
-<DT><CODE>\fellip f:<VAR>level</VAR> rx:<VAR>x-radius</VAR> ry:<VAR>y-radius</VAR></CODE>
-<DD>
-Draw a filled ellipse with center at the current position. The radius
-in the <VAR>x</VAR> direction is specified by <VAR>x-radius</VAR>. The radius in
-the <VAR>y</VAR> direction is specified by <VAR>y-radius</VAR>. The ellipse is
-painted with the gray level specified by <VAR>level</VAR>. A gray level of 1
-corresponds to white, with decreasing values getting darker. The level
-0 is full black. This command does not draw a line along the boundary
-of the ellipse. The drawing size is increased if necessary to contain
-the ellipse.
-
-<DT><CODE>\htext (<VAR>x</VAR> <VAR>y</VAR>){<VAR>text</VAR>}</CODE>
-<DD>
-<DT><CODE>\htext {<VAR>text</VAR>}</CODE>
-<DD>
-The first form of this command places the TeX text <VAR>text</VAR>
-horizontally with the text reference point at the coordinate
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>. The new current position is <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>. The second form of this command places the TeX text
-<VAR>text</VAR> horizontally with the text reference point at the current
-position. The text reference point is set with the <CODE>\textref</CODE>
-command.
-
-<DT><CODE>\ifill f:<VAR>level</VAR></CODE>
-<DD>
-Close the current path and paint the interior of the region with gray
-level <VAR>level</VAR>. The line around the path is not drawn. Gray levels
-are real values from 0 (black) through intermediate values (grays) to 1
-(white).
-
-<DT><CODE>\larc r:<VAR>radius</VAR> sd:<VAR>start-angle</VAR> ed:<VAR>end-angle</VAR></CODE>
-<DD>
-Draw a counterclockwise arc. The center of the arc is at the current
-position. The radius is specified by <VAR>radius</VAR>. The start and end
-angles (in degrees) are specified by <VAR>start-angle</VAR> and
-<VAR>end-angle</VAR>. This command does not affect the limits (size) of the
-drawing.
-
-<DT><CODE>\lcir r:<VAR>radius</VAR></CODE>
-<DD>
-Draw a circle with center at the current position. The radius is
-specified by <VAR>radius</VAR>. This command draws a line along the
-circumference of the circle. The drawing size is increased if necessary
-to contain the circle.
-
-<DT><CODE>\lellip rx:<VAR>x-radius</VAR> ry:<VAR>y-radius</VAR></CODE>
-<DD>
-Draw an ellipse with center at the current position. The radius in the
-<VAR>x</VAR> direction is specified by <VAR>x-radius</VAR>. The radius in the
-<VAR>y</VAR> direction is specified by <VAR>y-radius</VAR>. The drawing size is
-increased if necessary to contain the ellipse.
-
-<DT><CODE>\lfill f:<VAR>level</VAR></CODE>
-<DD>
-Close the current path, draw the line around the path using the current
-grey level for lines and paint the interior of the region with specified
-gray level <VAR>level</VAR>. Gray levels are real values from 0 (black)
-through intermediate values (grays) to 1 (white).
-
-<DT><CODE>\linewd <VAR>width</VAR></CODE>
-<DD>
-Set the line width to <VAR>width</VAR> units. Initially <VAR>width</VAR> is 0.01
-inches (corresponding to 3 pixels at 300 pixels to the inch).
-
-<DT><CODE>\lpatt (<VAR>pattern</VAR>)</CODE>
-<DD>
-Set lines to have the pattern <CODE>(<VAR>pattern</VAR>)</CODE>. A pattern is a
-sequence of on/off lengths separated by blanks and enclosed in parentheses.
-The lengths alternately specify the length of a dash and the length of a
-gap between dashes. Each length is interpreted using the current
-scaling and drawing units. The pattern is used cyclically. The empty
-pattern signifies a solid line. The initial line pattern is a solid
-line, corresponding to the empty pattern <CODE>\lpatt ()</CODE>.
-
-<DT><CODE>\lvec (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-Draw a line from the current position to coordinate <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>. The new current position is <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.
-
-<DT><CODE>\move (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-Move to coordinate <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>. The new current position
-is <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.
-
-<DT><CODE>\ravec (<VAR>dx</VAR> <VAR>dy</VAR>)</CODE>
-<DD>
-Draw a line with an arrowhead from the current position, <VAR>dx</VAR> units
-in the <VAR>x</VAR> direction and <VAR>y</VAR> units in the <VAR>y</VAR> direction.
-The final position becomes the new current position. The arrowhead is
-aligned with the line, with the tip at the new current position.
-
-<DT><CODE>\relsegscale <VAR>value</VAR></CODE>
-<DD>
-Adjust the segment scale factor by multiplying by <VAR>value</VAR>. This has
-the effect of multiplying the current overall scale factor by the same
-factor. The overall scaling factor is the product of the unit scale
-factor and the segment scale factor.
-
-<DT><CODE>\relunitscale <VAR>value</VAR></CODE>
-<DD>
-Adjust the unit scale factor by multiplying by <VAR>value</VAR>. This has
-the effect of multiplying the overall scale factor by the same factor.
-The overall scaling factor is the product of the unit scale factor and
-the segment scale factor.
-
-<DT><CODE>\rlvec (<VAR>dx</VAR> <VAR>dy</VAR>)</CODE>
-<DD>
-Draw a line from the current position, <VAR>dx</VAR> units in the <VAR>x</VAR>
-direction and <VAR>dy</VAR> units in the <VAR>y</VAR> direction. The final
-position becomes the new current position.
-
-<DT><CODE>\rmove (<VAR>dx</VAR> <VAR>dy</VAR>)</CODE>
-<DD>
-Move from the current position, <VAR>dx</VAR> units in the <VAR>x</VAR> direction
-and <VAR>dy</VAR> units in the <VAR>y</VAR> direction. The final position becomes
-the new current position.
-
-<DT><CODE>\rtext td:<VAR>angle</VAR> (x y){<VAR>text</VAR>}</CODE>
-<DD>
-<DT><CODE>\rtext td:<VAR>angle</VAR> {<VAR>text</VAR>}</CODE>
-<DD>
-The first form of this command places the TeX text <VAR>text</VAR> at an
-angle with the text reference point at the coordinate <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>. The new current position is <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>. The
-second form of this command places the TeX text <VAR>text</VAR> at an
-angle with the text reference point at the current position. In both
-cases, the TeX text is placed in a box and the box is rotated
-counterclockwise by <VAR>angle</VAR> degrees about the text reference point.
-The text reference point is set with the <CODE>\textref</CODE> command.
-
-<DT><CODE>\savecurrpos (*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>
-<DD>
-Save the current position as the absolute position referenced by
-<CODE>(*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>.
-
-<DT><CODE>\savepos (<VAR>x</VAR> <VAR>y</VAR>)(*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>
-<DD>
-Save the coordinate position <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE> as the absolute
-position referenced by <CODE>(*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>. The coordinate
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE> is interpreted in the normal fashion as a
-coordinate relative to the current segment, using the current scaling
-factors and drawing unit.
-
-<DT><CODE>\setgray <VAR>level</VAR></CODE>
-<DD>
-Set the gray level of lines. Gray levels are real values from 0 (black)
-through intermediate values (gray) to 1 (white). The initial gray level
-is 0 corresponding to black.
-
-<DT><CODE>\setsegscale <VAR>scale</VAR></CODE>
-<DD>
-Set the segment scale factor. The argument <VAR>scale</VAR> is a real number
-which is used to scale coordinate values. The overall scale factor is
-the product of the unit scale factor and the segment scale factor.
-
-<DT><CODE>\setunitscale <VAR>scale</VAR></CODE>
-<DD>
-Set the unit scaling to <VAR>scale</VAR>. The argument <VAR>scale</VAR> is a real
-number which is used to scale coordinate values. The overall scaling
-factor is the product of the unit scale factor and the segment scale
-factor.
-
-<DT><CODE>\texdrawbox { ... }</CODE>
-<DD>
-Create a TeXdraw box. The argument contains TeXdraw commands.
-This macro returns a TeX box with height equal to the height of the
-drawing and width equal to the width of the drawing. The depth of the
-box is zero.
-
-<DT><CODE>\textref h:<VAR>h-ref</VAR> v:<VAR>v-ref</VAR></CODE>
-<DD>
-Set the text reference point for subsequent text commands. The
-horizontal reference point <VAR>h-ref</VAR> is one of <CODE>L</CODE>, <CODE>C</CODE> or
-<CODE>R</CODE> (left, center or right). The vertical reference point
-<VAR>v-ref</VAR> is one of <CODE>T</CODE>, <CODE>C</CODE> or <CODE>B</CODE> (top, center or
-bottom). For rotated text, the reference point is determined before
-rotation. The initial text reference point corresponds to
-<CODE>\textref h:L v:B</CODE>.
-
-<DT><CODE>\vtext (x y){<VAR>text</VAR>}</CODE>
-<DD>
-<DT><CODE>\vtext {<VAR>text</VAR>}</CODE>
-<DD>
-The first form of this command places the TeX text <VAR>text</VAR>
-vertically with the text reference point at the coordinate
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>. The new current position is <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>. The second form of this command places the TeX text
-<VAR>text</VAR> vertically with the text reference point at the current
-position. In both cases, the TeX text is placed in a box and the box
-is rotated counterclockwise by 90 degrees about the text reference
-point. The text reference point is set with the <CODE>\textref</CODE>
-command.
-
-</DL>
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_8.html">previous</A>, <A HREF="texdraw_10.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
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