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[orx-shapes] Demo comments

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This commit is contained in:
Abe Pazos
2025-08-30 23:56:56 +02:00
parent 2c3417dad6
commit ea4a2c0d89
12 changed files with 196 additions and 64 deletions
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8
orx-shapes/src/jvmDemo/kotlin/arrangement/DemoArrangement01.kt
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@@ -12,6 +12,14 @@ import org.openrndr.shape.Rectangle
import org.openrndr.shape.Shape
import kotlin.random.Random
/**
* Demonstrates the use of Arrangement to create a 2D arrangement of shapes.
*
* The Arrangement constructor takes as arguments instances of [org.openrndr.shape.ShapeProvider]s.
*
* Once constructed, we can request `originFaces`, `edges`, `vertices`, `boundaries` and `holes`,
* to render or manipulate them further as needed.
*/
fun main() = application {
configure {
width = 800

10
orx-shapes/src/jvmDemo/kotlin/arrangement/DemoArrangement02.kt
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@@ -10,6 +10,14 @@ import org.openrndr.extra.shapes.arrangement.BoundedFace
import org.openrndr.extra.shapes.hobbycurve.hobbyCurve
import kotlin.random.Random
/**
* Demonstrates the use of Arrangement to create a 2D arrangement of shapes using a self-intersecting curve.
*
* For self-intersections we need to pass the same curve twice as arguments to Arrangement.
* The specific curve used results in 4 intersection points.
*
* This demo shows how we can query and visualize the neighborhoods of those 4 vertices.
*/
fun main() = application {
configure {
width = 800
@@ -21,7 +29,7 @@ fun main() = application {
val uniformPoints = poissonDiskSampling(drawer.bounds.offsetEdges(-200.0), 100.0, random=Random(10579))
val curve = hobbyCurve(uniformPoints, closed=true)
// Construct an arrangement of the curve. In order to obtain an arrangement dealing with self intersections,
// Construct an arrangement of the curve. To get an arrangement dealing with self-intersections,
// the curve is passed in twice.
val arrangement = Arrangement(curve, curve)

46
orx-shapes/src/jvmDemo/kotlin/arrangement/DemoArrangement04.kt
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@@ -12,32 +12,46 @@ import org.openrndr.shape.Circle
import kotlin.math.sqrt
import kotlin.random.Random
/**
* Demonstrates using the `boundedFaces` collection available in Arrangements.
*
* `boundedFaces` elements have a `contour` property, while `unboundedFaces` do not.
*
* In this example, `faces` contains 25 items: 24 `bounded` and 1 `unbounded` faces.
*/
fun main() = application {
program {
val circles = listOf(
Circle(drawer.bounds.center - Vector2(50.0, 0.0), 50.0),
Circle(drawer.bounds.center + Vector2(50.0, 0.0), 50.0),
Circle(drawer.bounds.center + Vector2(0.0, 50.0), 50.0),
Circle(drawer.bounds.center - Vector2(0.0, 50.0), 50.0),
Circle(drawer.bounds.center - Vector2(50.0, 0.0), sqrt(50.0 * 50.0 + 50.0 * 50.0) - 49.9),
Circle(drawer.bounds.center + Vector2(50.0, 0.0), sqrt(50.0 * 50.0 + 50.0 * 50.0) - 49.9),
Circle(drawer.bounds.center - Vector2(0.0, 50.0), sqrt(50.0 * 50.0 + 50.0 * 50.0) - 49.9),
Circle(drawer.bounds.center + Vector2(0.0, 50.0), sqrt(50.0 * 50.0 + 50.0 * 50.0) - 49.9),
Circle(Vector2(-50.0, 0.0), 50.0),
Circle(Vector2(50.0, 0.0), 50.0),
Circle(Vector2(0.0, 50.0), 50.0),
Circle(Vector2(0.0, -50.0), 50.0),
Circle(Vector2(-50.0, 0.0), sqrt(50.0 * 50.0 + 50.0 * 50.0) - 49.9),
Circle(Vector2(50.0, 0.0), sqrt(50.0 * 50.0 + 50.0 * 50.0) - 49.9),
Circle(Vector2(0.0, -50.0), sqrt(50.0 * 50.0 + 50.0 * 50.0) - 49.9),
Circle(Vector2(0.0, 50.0), sqrt(50.0 * 50.0 + 50.0 * 50.0) - 49.9),
).shuffled()
val arr = Arrangement(circles)
println(arr.faces.size)
println(arr.boundedFaces.size)
println(arr.unboundedFaces.size)
extend {
val r = Random(100)
drawer.stroke = ColorRGBa.WHITE
for (f in arr.boundedFaces) {
drawer.fill =
rgb(
Double.uniform(0.0, 1.0, r),
Double.uniform(0.0, 1.0, r),
Double.uniform(0.0, 1.0, r)
).saturate<OKHSV>(0.25)
drawer.stroke = ColorRGBa.WHITE
drawer.translate(drawer.bounds.center)
drawer.scale(2.0)
for (f in arr.boundedFaces) {
drawer.fill = rgb(
Double.uniform(0.0, 1.0, r),
Double.uniform(0.0, 1.0, r),
Double.uniform(0.0, 1.0, r)
).saturate<OKHSV>(0.25)
drawer.contour(f.contour)
}
}