NAME
     comdraw - drawtool with distributed command interpreter

SYNOPSIS
     comdraw [-port n] [-import n] ['X-params'] [file]

DESCRIPTION

comdraw is a drawing editor with integrated command interpreter the
user can interact with via stdin and stdout (or via telnet if ACE is
built in).  The command syntax is a semi-colon separated list of
commands with arbitrary number of parameters enclosed in parenthesis,
with support for optional parameters and keyword arguments, i.e:

	command1(arg1 arg2 arg3 :key1 val1 :key2 val2);
	command2(arg1 arg2 arg3 :key1 val1 :key2 val2)

The literals and operators of C are all supported except for the
syntax of the conditional operator "?:".  See the comterp
documentation for more details.  

All arguments to commands documented below are integers unless
indicated by a suffix of str (which are strings embedded in quotes) or
flt (which are conventional floating point numbers).  "compview" is a
graphical object assigned to an interpreter variable.

DRAWING COMMANDS

compview=rect(x0,y0,x1,y1) -- create a rectangle
compview=rectangle(x0,y0,x1,y1) -- same as rect
compview=line(x0,y0,x1,y1) -- create a line
compview=arrowline(x0,y0,x1,y1) -- create line with arrows
compview=ellipse(x0,y0,r1,r2) -- create a rectangle
compview=text(x0,y0 textstr) -- create a text string
compview=multiline(x0,y0[,x1,y1,...]) -- create a multiline
compview=arrowmultiline(x0,y0[,x1,y1,...]) -- create a multiline with arrows
compview=openspline(x0,y0[,x1,y1,...]) -- create an open spline
compview=arrowspline(x0,y0[,x1,y1,...]) -- create an open spline with arrows
compview=polygon(x0,y0[,x1,y1,...]) -- create a polygon
compview=closedspline(x0,y0[,x1,y1,...]) -- create a closed spline
compview=raster(x0,x1,y0,y1) -- create an empty raster

GRAPHIC STATS COMMANDS

xylist=center(compview :xy :yx :x :y :scrn) -- center of compview (dflt :xy)
rectlist=mbr(compview :lbrt :lrbt :scrn) -- minimum bounding rectangle of compview (dflt :lbrt)
ptlist=points(compview :scrn) -- return point list from compview graphic

GRAPHIC STATE COMMANDS

font(fontnum) -- set current font from menu
brush(brushnum) -- set current brush from menu
pattern(patternnum) -- set current pattern from menu
colors(fgcolornum bgcolornum) -- set current colors from menu

nfonts() -- return size of font menu
nbrushes() -- return size of brush menu
npatterns() -- return size of pattern menu
ncolors() -- return size of color menus

DIRECT MANIPULATION COMMANDS

select([compview ...] :all :clear) -- make these graphics the current selection
delete(compview [compview ...]) -- delete graphic(s)
move(dx dy) -- move current selection
scale(xflt yflt) -- scale current selection
rotate(degflt) -- rotate current selection

GROUP/UNGROUP COMMANDS

newgroup=growgroup(groupview compview) -- add graphic to existing group graphic
newgroup=trimgroup(groupview compview) -- remove graphic from existing group graphic

COMPONENT AND ATTRIBUTE COMMANDS

compview=setattr(compview [:keyword value [:keyword value [...]]]) -- set attributes of a graphic component
attrlist(compview) -- return attribute list of component
compview=frame([index]) -- return composite component for a frame, defaults to current
val=at(list|attrlist|compview n :set val) -- return (or set) the nth item in a list.
num=size(list|attrlist|compview) -- return size of a list.

VIEWER COMMANDS

update() -- update viewer

error=save([pathstr]) -- command to save document (to pathname)	
compview=import(pathstr :popen :next) -- import graphic file from pathname or URL, or from a command if :popen
(:next imports next in numeric series)
export(compview[,compview[,...compview]] [path] :host host_str :port port_int :socket :string|:str :eps :idraw) -- remote in drawtool (or other) format
compview=paste(compview [xscale yscale xoff yoff | a00,a01,a10,a11,a20,a21]) -- paste graphic into the viewer
val=pastemode([val] :get) -- toggle or set paste mode, default is 0, always paste new graphics
compview=addtool(pathname) -- add button to toolbar based on zero-centered idraw drawing.

ncols() -- onscreen horizontal extent in pixels
nrows() -- onscreen vertical extent in pixels

dx,dy=stod(sx,sy) -- convert from screen to drawing coordinates
sx,sy=dtos(dx,dy) -- convert from drawing to screen coordinates
dx,dy=gtod(compview gx,gy) -- convert from graphic to drawing coordinates
gx,gy=dtog(compview dx,dy) -- convert from drawing to graphic coordinates

handles(flag) -- enable/disable current selection tic marks and/or highlighting
highlight(compview compviewgs) -- set the highlight graphic state for a graphic

zoom(zoomflt) -- zoom by factor
zoomin() -- zoom-in by 2
zoomout() -- zoom-out by 2

pan(px py) -- pan viewer
smallpanup() -- small pan up
smallpandown() -- small pan down
smallpanleft() -- small pan left
smallpanright() - small pan right
largepanup() -- large pan up
largepandown() -- large pan down
largepanleft() -- large pan left
largepanright() -- large pan right

IMAGING COMMANDS

tilefile(inpath outpath [xsize] [ysiz]) -- tile pgm or ppm image file
poke(compview x y val) -- poke pixel value into raster
pcols(compview) -- number of columns in a raster
pcols(compview) -- number of rows in a raster
pflush(compview) -- flush pixels poked into a raster
pclip(compview x1,y1,x2,y2,x3,y3[,...,xn,yn]) -- clip raster with polygon
alpha(compview [alphaval]) -- set/get alpha transparency

PLOTTING COMMANDS

-- requires plotmtv and pstoedit --
barplot([var_str value_float] [...] :title title_str :xtitle xtitle_str 
	:ytitle ytitle_str :valtitle valtitle_str :newview) -- display a barplot

OTHER COMMANDS

run(filename) -- run commands from file
quit() -- quit this interpreter
exit() -- exit entire application
pause([msgstr]) -- pause script execution until C/R

OPTIONS

"-comdraw n" specifies the port number to accept command interpreter
connections on.

"-import n" specifies the port number run the import service on.  The
import service accepts connections over the net and reads drawtool
format data.

"-stripped" brings up a comdraw without any menubar, toolbar, panner,
slider, or zoomer.  It can be controlled via stdin or telnet if built
with ACE.

"-rampsize n" selects the rampsize used for gray-level image
processing.

"-theight n" (or "-th n") selects the automatic raster tiling height.

"-twidth n" (or "-tw n") selects the automatic raster tiling width.

"-tile" enables the automatic raster tiling.

Also see the -help message and the drawtool and idraw man pages for
further options.

SEE ALSO  
	comterp, drawtool, idraw

WEB PAGES
	 http://www.ivtools.org/ivtools/comdraw.html



