Difference between revisions of "BezierCurve:evaluate"
(→Example) |
|||
Line 17: | Line 17: | ||
Get list of coordinate pairs: | Get list of coordinate pairs: | ||
<source lang="lua"> | <source lang="lua"> | ||
− | local BezierCurve = love.math.newBezierCurve({25,25,75, | + | local BezierCurve = love.math.newBezierCurve({25,25, 25,125, 75,25, 125,25}) |
local list = {} | local list = {} | ||
local subdivisions = 2^3 | local subdivisions = 2^3 |
Revision as of 13:56, 21 November 2021
Available since LÖVE 0.9.0 |
This function is not supported in earlier versions. |
Evaluate Bézier curve at parameter t. The parameter must be between 0 and 1 (inclusive).
This function can be used to move objects along paths or tween parameters. However it should not be used to render the curve, see BezierCurve:render for that purpose.
Function
Synopsis
x,y = BezierCurve:evaluate(t)
Arguments
number t
- Where to evaluate the curve.
Returns
number x
- x coordinate of the curve at parameter t.
number y
- y coordinate of the curve at parameter t.
Example
Get list of coordinate pairs:
local BezierCurve = love.math.newBezierCurve({25,25, 25,125, 75,25, 125,25})
local list = {}
local subdivisions = 2^3
local line = {}
for i = 0, subdivisions do
local t = i/subdivisions
print (t)
local x, y = BezierCurve:evaluate(t)
table.insert (line, x)
table.insert (line, y)
end
love.graphics.line(line)
See Also
Other Languages
Dansk –
Deutsch –
English –
Español –
Français –
Indonesia –
Italiano –
Lietuviškai –
Magyar –
Nederlands –
Polski –
Português –
Română –
Slovenský –
Suomi –
Svenska –
Türkçe –
Česky –
Ελληνικά –
Български –
Русский –
Српски –
Українська –
עברית –
ไทย –
日本語 –
正體中文 –
简体中文 –
Tiếng Việt –
한국어
More info