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[orx-marching-squares] Change findContours to return List<ShapeContour>

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This commit is contained in:
Edwin Jakobs
2023-02-02 22:03:51 +01:00
parent 9019e7e7ea
commit 5e6123c958
5 changed files with 65 additions and 18 deletions
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5
orx-marching-squares/src/jvmDemo/kotlin/FindContours01.kt
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@@ -14,8 +14,9 @@ fun main() {
drawer.clear(ColorRGBa.BLACK)
drawer.stroke = ColorRGBa.PINK
fun f(v: Vector2) = v.distanceTo(drawer.bounds.center) - 200.0
val segments = findContours(::f, drawer.bounds, 16.0)
drawer.lineSegments(segments)
val contours = findContours(::f, drawer.bounds, 16.0)
drawer.fill = null
drawer.contours(contours)
}
}
}

5
orx-marching-squares/src/jvmDemo/kotlin/FindContours02.kt
View File

@@ -16,8 +16,9 @@ fun main() {
drawer.clear(ColorRGBa.BLACK)
drawer.stroke = ColorRGBa.PINK
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)
drawer.lineSegments(segments)
val contours = findContours(::f, drawer.bounds.offsetEdges(-24.0), 16.0)
drawer.fill = null
drawer.contours(contours)
}
}
}

9
orx-marching-squares/src/jvmDemo/kotlin/FindContours03.kt
View File

@@ -16,14 +16,13 @@ fun main() {
extend {
drawer.clear(ColorRGBa.BLACK)
drawer.stroke = ColorRGBa.PINK
drawer.fill = null
fun f(v: Vector2): Double {
val p = v + Vector2(cos(v.y * 0.1 + seconds) * 40.0, sin(v.x * 0.1 + seconds) * 40.0)
return cos((p.distanceTo(drawer.bounds.center) / 720.0) * 6 * PI)
return cos((p.distanceTo(drawer.bounds.center) / 720.0) * 12 * PI)
}
val segments = findContours(::f, drawer.bounds.offsetEdges(32.0), 4.0)
drawer.lineSegments(segments)
val contours = findContours(::f, drawer.bounds.offsetEdges(-2.0), 4.0)
drawer.contours(contours)
}
}
}

6
orx-marching-squares/src/jvmDemo/kotlin/FindContours04.kt
View File

@@ -6,7 +6,6 @@ import org.openrndr.extra.marchingsquares.findContours
import org.openrndr.math.Vector2
import kotlin.math.PI
import kotlin.math.cos
import kotlin.math.sin
fun main() {
application {
@@ -20,16 +19,17 @@ fun main() {
extend {
drawer.clear(ColorRGBa.BLACK)
drawer.stroke = ColorRGBa.BLACK
drawer.fill = null
fun f(v: Vector2): Double {
val iv = v.toInt()
val d = if (iv.x >= 0 && iv.y >= 0 && iv.x < image.width && iv.y < image.height) image.shadow[iv.x, iv.y].luminance else 0.0
return cos(d * PI * 8.0 + seconds)
}
val segments = findContours(::f, drawer.bounds.offsetEdges(32.0), 4.0)
val contours = findContours(::f, drawer.bounds.offsetEdges(32.0), 4.0)
drawer.drawStyle.colorMatrix = grayscale()
drawer.image(image)
drawer.lineSegments(segments)
drawer.contours(contours)
}
}
}