bresenham-zingl
Advanced tools
Port of C code by Alois Zingl from this paper
npm i -S bresenham-zingl
These are two callbacks you will have to provide in order to make use of the output:
setPixel(x, y)Use that callback to fill the pixel on canvas.
| parameter | type | description |
|---|---|---|
x | number | |
y | number |
setPixelAlpha(x, y, alpha)Callback that would also receive the alpha value for the pixel
| parameter | type | description |
|---|---|---|
x | number | |
y | number | |
alpha | number |
line(x0, y0, x1, y1, setPixel)Line segment rasterisation
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
setPixel | setPixel |
ellipse(xm, ym, a, b, setPixel)Draws ellipse
| parameter | type | description |
|---|---|---|
xm | number | |
ym | number | |
a | number | |
b | number | |
setPixel | setPixel |
circle(xm, ym, r, setPixel)Circel rasterisation
| parameter | type | description |
|---|---|---|
xm | number | |
ym | number | |
r | number | |
setPixel | setPixel |
quadBezierSegment(x0, y0, x1, y1, x2, y2, setPixel)plot a limited quadratic Bezier segment
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
x2 | number | |
y2 | number | |
setPixel | setPixel |
quadBezierAA(x0, y0, x1, y1, x2, y2, setPixelAA)Plot any quadratic Bezier curve with anti-alias
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
x2 | number | |
y2 | number | |
setPixelAA | setPixelAlpha |
quadBezier(x0, y0, x1, y1, x2, y2, setPixel)Plot any quadratic Bezier curve
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
x2 | number | |
y2 | number | |
setPixel | setPixel |
quadRationalBezierSegment(x0, y0, x1, y1, x2, y2, w, setPixel)plot a limited rational Bezier segment, squared weight
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
x2 | number | |
y2 | number | |
w | number | |
setPixel | setPixel |
quadRationalBezier(x0, y0, x1, y1, x2, y2, w, setPixel)plot any quadratic rational Bezier curve
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
x2 | number | |
y2 | number | |
w | number | |
setPixel | setPixel |
rotatedEllipse(x, y, a, b, angle, setPixel)Plot ellipse rotated by angle (radian)
| parameter | type | description |
|---|---|---|
x | number | |
y | number | |
a | number | |
b | number | |
angle | number | |
setPixel | setPixel |
rotatedEllipseRect(x0, y0, x1, y1, zd, setPixel)Rectangle enclosing the ellipse, integer rotation angle
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
zd | number | |
setPixel | setPixel |
ellipseRect(x0, y0, x1, y1, setPixel)Rectangular parameter enclosing the ellipse
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
setPixel | setPixel |
cubicBezierSeg(x0, y0, x1, y1, x2, y2, x3, y3, setPixel)Plot limited cubic Bezier segment
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
x2 | number | |
y2 | number | |
x3 | number | |
y3 | number | |
setPixel | setPixel |
cubicBezier(x0, y0, x1, y1, x2, y2, x3, y3, setPixel)plot any cubic Bezier curve
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
x2 | number | |
y2 | number | |
x3 | number | |
y3 | number | |
setPixel | setPixel |
lineAA(x0, y0, x1, y1, setPixelAA)Draw a black (0) anti-aliased line on white (255) background
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
setPixelAA | setPixelAlpha |
Returns number,
circleAA(xm, ym, r, setPixelAA)Draw a black anti-aliased circle on white background
| parameter | type | description |
|---|---|---|
xm | number | |
ym | number | |
r | number | |
setPixelAA | setPixelAlpha |
quadBezierSegmentAA(x0, y0, x1, y1, x2, y2, setPixelAA)Draw an limited anti-aliased quadratic Bezier segment
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
x2 | number | |
y2 | number | |
setPixelAA | setPixelAlpha |
quadRationalBezierSegmentAA(x0, y0, x1, y1, x2, y2, w, setPixelAA)draw an anti-aliased rational quadratic Bezier segment, squared weight
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
x2 | number | |
y2 | number | |
w | number | |
setPixelAA | setPixelAlpha |
lineWidth(x0, y0, x1, y1, wd, setPixel)Plot an anti-aliased line of width wd
| parameter | type | description |
|---|---|---|
x0 | number | |
y0 | number | |
x1 | number | |
y1 | number | |
wd | number | |
setPixel | setPixel |
(The MIT License)
Copyright (c) 2012 Alois Zingl
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
FAQs
Bresenham rasterisation algorithms by Alois Zingl
The npm package bresenham-zingl receives a total of 175 weekly downloads. As such, bresenham-zingl popularity was classified as not popular.
We found that bresenham-zingl demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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