kaze/orx
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[orx-marching-squares] Update README.md

Browse Source
This commit is contained in:
Edwin Jakobs
2023-02-03 07:12:53 +01:00
parent 5e6123c958
commit 97ecb7ca14
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
orx-marching-squares/README.md
View File

@@ -8,16 +8,16 @@ Tools for extracting contours from functions
```kotlin ```kotlin
fun f(v: Vector2) = v.distanceTo(drawer.bounds.center) - 200.0 fun f(v: Vector2) = v.distanceTo(drawer.bounds.center) - 200.0
val segments = findContours(::f, drawer.bounds, 16.0) val contours = findContours(::f, drawer.bounds, 16.0)
drawer.lineSegments(segments) drawer.contours(contours)
``` ```
With a small adjustment to the given function one can use `findContours` to find iso contours. The trick is to add a cosine over the distance function. With a small adjustment to the given function one can use `findContours` to find iso contours. The trick is to add a cosine over the distance function.
```kotlin ```kotlin
fun f(v: Vector2) = cos((v.distanceTo(drawer.bounds.center) / 100.0) * 2 * PI) fun f(v: Vector2) = cos((v.distanceTo(drawer.bounds.center) / 100.0) * 2 * PI)
val segments = findContours(::f, drawer.bounds.offsetEdges(32.0), 16.0) val contours = findContours(::f, drawer.bounds.offsetEdges(32.0), 16.0)
drawer.lineSegments(segments) drawer.contours(contours)
``` ```
<!-- __demos__ --> <!-- __demos__ -->
## Demos ## Demos