eval evaluates an id string

unquote removes quotes from a string

ftoa returns the string value of a floating point value

vmap maps one interval to another

validNumber checks that a string starts with a digit or sign or decimal point

printlevel prints the leading spaces for the specified level

makegeometry fills in the geometry from arguments

xmlesc escapes XML

opval returns the value of a binary operation

polar converts polar to Cartesian coordinates, compensating for canvas aspect ratio

fontColorOp generates markup for font, color, and opacity

mapData maps raw lat/long coordinates to canvas coordinates

printargs prints arguments from the specified point to the last

qesc remove quotes from a string, and XML escape it

keyparse parses keywords and executes

filequote gets a name from a quoted string

kind returns the type of statement

opencoords returns the source of coordinates: either as filename, or as an individual string with special formatting: the first character must be '+'

parse takes a line of input and returns a string slice containing the parsed tokens

readLoc reads lat/long pairs and an optional name from a file

Process reads input, parses, dispatches functions for code generation

colorop makes a color and optional opacity in the form of name:op

colorstring returns the markup for a color. either a single color or two colors and a percentage used for gradients

endlist writes an ending list to w

evaloop evaluates items in a loop body

fontColorOpLp generates markup for font, color, and opacity and linespacing

newlist writes the beginning of a list to w

parseLatLongs parses two forms of lat/long parse to (x,y)

ReadKML reads and parses KML files, writing deck markup

writeChart writes a chart, using data in the filename, using specified settings

deckline makes a line in deck markup

evaluate reserved variables for canvas bounds (geoXmin, geoXmax, geoYmin, geoYmax) if errors occur use the defaults

evaluate reserved variables for set lat/long bounds, if errors occur use the defaults

getcoords extracts lat/long from geo URLs

keyword formats a general keyword

setDefaultChartSettings sets all chart settings to default values

Dump shows the variables

area computes the diameter from a given area Area = Pi * (r*r), so given an area the diameter = sqrt ( area / pi) * 2 usecase: x=somevalue d=area x ci

curve make quadratic Bezier curve curve x1 y1 x2 y2 x3 y3 [size] [color] [opacity]

deckpolygon makes deck markup for a polygon given x, y coordinates slices

deckshape draws the shapes (lines, polylines, polygons) in deck markup

def reads and processes the function defintion def name arg1 arg2 ... argn ... edef

dotted line places count dots along the line (x1,y1) and (x2,y2)

dump prints the parsed lines

forvector returns the elements between "[" and "]"

funcbody caches the body of function defintions avoiding reapeted open/read/close

geoDataFormat looks at a filename and returns the format type based on the suffix

geodot places dots at geometric coordinates

"geotext" places text at geographic coordinates

isString tests of a string is bounded by quotes

kind returns the type of statement

maxitem returns the maximum element within a collection of decksh lines between the <begin> and <end> elements

mktoc makes a table of contents reading from r, writing to w

ParseCoords makes x, y slices from the string data contained in the kml coordinate element (lat,long,elevation separated by commas, each coordinate se

parsePoint return coordinates from the shape record

parseblock parses a block of code

parsefor collects and evaluates a loop body

parseif parses if -- else -- eif

Geographic functions parsesign fixes the parsing of signed numbers

process processes an io.Reader of decksh code

readFloat64 turns raw data into floating point

readJSON opens a geoJSON file, parses its contents, and writes coordinates in deck format

readSHP opens and parses a Shapefile, generating deck markup

shpdeckpoint places a circle at a coordinate. the coordinates are mapped from geographical coordinates to screen bounding box.

make a temp file from a name

textblock generates markup for a block of text textblock x y width size [font] [color] [opacity] [link]

toplevel formats top level elements

Assign makes an assignment

JSONCoordinates extracts coordinates from a JGeometry object, according to type

JSONLineString parses an array of coordinate pairs

JSONMultiPolygon parses an array of polygons

JSONPoint parses a single coordinate pair [longitude, latitude]

JSONPolygon parses an array of linear rings (array of coordinate pairs)

angle computes the angle formed by a line, compensating for aspect ratio

arc makes the markup for arc arc cx cy w h a1 a2 [size] [color] [opacity]

arctext places text on an arc arctext cx cy radius begin-angle end-angle size [font] [color] [opacity] [link]

areafunc returns the diameter, given the area measure

argChart takes a list of arguments with flags set and writes a chart

arrow draws a general arrow given two points. The rotation of the arrowhead is computed. arrow x1 y1 x2 y2 [linewidth] [arrowidth] [arrowheight] [colo

arrowhead returns the coordinates for left, right, up, down arrowheads. x, y is the point of the arrow, aw, ah are width, height

assign creates an assignment by filling in the global id map assignments are either simple (x=10), binary op (x=a+b), coordinate (p=(100,50)) or built

assignop creates an assignment by computing an addition or substraction on an identifier

beginslide writes new slide markup to w

binop processes a binary expression: id=id op number

brace makes various kinds of braces: (left, right, up, down) lbrace x y size aw ah [linewidth] [color] [opacity] rbrace x y size aw ah [linewidth] [co

bracket makes various kinds of braces: (left, right, up, down) lbracket x y width height [linewidth] [color] [opacity] rbracket x y width height [line

canvas produces the "canvas" element canvas width height

carrow makes a arrow with a curved line lcarrow x1 y1 x2 y2 x3 y3 [linewidth] [arrowidth] [arrowheight] [color] [opacity] rcarrow x1 y1 x2 y2 x3 y3 [l

chartbounds sets the bounding box for charts

chartflags sets the flags for the dchart keyword

cimage makes a captioned image cimage "file" "caption" x y w h [scale] [link]

comma formats a floating point value with commas. Limitations: up to 15 digits, no decimals

condition evaluates string and number conditional

conditional processes if...eif statements

content generates content of arbitrary type content "scheme://file" x y size

coordfunc assigns a coordinate pair

lbrace makes a downward-facing brace