plot/style

(line-style [color :int width :float dash :int alpha :float] :int)

allocate a line-style value.

(point-style [color :int fill-color :int sym :int size :float alpha :float] :int)

allocate a point-style value.

(fill-style [color :int alpha :float line-color :int line-width :float] :int)

allocate a fill-style value.

(plot-opts [width :int height :int title :cstr x-label :cstr y-label :cstr x-min :float x-max :float y-min :float y-max :float legend-pos :int] :int)

allocate a plot-opts value.

(plot-opts-width [opts :int] :int)

read the configured output width.

(plot-opts-height [opts :int] :int)

read the configured output height.

(default-line-style :int)

default line style with auto color.

(default-point-style :int)

default point style with auto color.

(default-fill-style :int)

default fill style with auto color.

(default-plot-opts :int)

default plot options.

(dash-solid :int)

solid stroke constant.

(dash-dash :int)

dashed stroke constant.

(dash-dot :int)

dotted stroke constant.

(dash-dash-dot :int)

dash-dot stroke constant.

(sym-circle :int)

circle point symbol constant.

(sym-square :int)

square point symbol constant.

(sym-triangle :int)

triangle point symbol constant.

(sym-cross :int)

cross point symbol constant.

(sym-plus :int)

plus point symbol constant.

(sym-diamond :int)

diamond point symbol constant.

(palette-size :int)

number of built-in palette entries.

(palette-color [idx :int] :int)

return (r g b) for palette index idx.

(color-seq [start-idx :int end-idx :int n :int] :int)

interpolate between palette anchors and return nearest palette indices.