TftArc() | TFT & EPD Graphic Library 2

Syntax

TftArc(wX_Start As Word, wY_Start As Word, wX_Stop As Word, wY_Stop As Word, wRadius As Word, pCurve As Bit, wColor As Word, bWidth As Byte, sbDirection As SByte, bFillFactor As Byte)

Parameters

Parameter	Description
wX_Start	X-coordinate of the starting point of the arc
wY_Start	Y-coordinate of the starting point of the arc
wX_Stop	X-coordinate of the ending point of the arc
wY_Stop	Y-coordinate of the ending point of the arc
wRadius	Radius of the arc (must be greater than the distance between the start and stop points)
pCurve	Direction of the arc: 0 = Concave 1 = Convex
wColor	Arc color in 16-bit RGB565 format
bWidth	Arc thickness in pixels (default is 1 if not specified)
sbDirection	Direction in which additional pixels are added relative to the center point: 1 = Outward -1 = Inward

Overview

Else = Ignored (no additional width)

bFillFactor — Factor to fill missing pixels due to floating-point rounding when drawing thicker arcs:

0 = 200% additional pixels
1 = 100% additional pixels
2, 3... = fractional additional pixels (e.g., 1/2 = 50%, 1/3 = 33%)
100 = no additional pixels

Draws an arc with a specified start and stop point, radius, and curvature direction.

The arc can have additional thickness and be filled with extra pixels for smoother rendering.

Example

TftSetUp(0, 0)

TftResetScreen(BLACK)

TftArc(30,80,290,80,200,0,GREEN,1,1,100)

TftArc(10,60,200,50,160,1,RED,6,-1,100)

TftArc()

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