Modern Tui TuiGraph

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TuiGraph

Draws a line graph of one or more series, scaled to fit or to a fixed range.

Syntax

type TuiGraph extends TuiWidget
    as TuiSeriesArray series
    as uint8 graphKind
    as float64 minY, maxY
    as boolean autoScale, showAxes
end type

Description

A line graph over one or more series. TUIGRAPH_BRAILLE gives the highest resolution; _BLOCK and _BAR are the coarser fallbacks for a terminal without a braille font. Turn autoScale off and set minY/maxY when the axis should be stable -- a percentage plot that rescales itself is unreadable.

Example

#import "std/tui"
using tui

dim as TuiScreen scr
scr.Resize( 40, 10 )
dim as TuiFrame ptr f = scr.BeginFrame( )

dim as TuiGraph g
g.graphKind = TUIGRAPH_BRAILLE
g.autoScale = FALSE               '' a percentage axis should not move
g.minY = 0 : g.maxY = 100

dim as TuiSeries s
for i as int32 = 0 to 199
    s.data.Push( 50.0 + sin( i / 9.0 ) * 45.0 )
next
s.color = TuiRgb( 120, 220, 160 )
g.series.Push( s )
g.Render( *f, f->Area( ) )
print g.series.Count( )           '' 1

See also

TuiCanvas	TuiCanvas.Dot	TuiCanvas.DotWidth	TuiCanvas.CellRows
TuiCanvas.Resize	TuiCanvas.Line_	TuiCanvas.DotHeight	TuiCanvas.Pattern
TuiCanvas.Clear	TuiCanvas.Blit	TuiCanvas.CellCols	TuiSeries

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Library: Terminal TUI Library
Category: Terminal TUI Library
Documented under: Charts
Working examples: hello.tiko · form.tiko · dashboard.tiko

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