7c97b80728
1. Change size of circles indicating intersections to make it obvious that the circles are not filled, and that only part of the intersecting shapes are being drawn. 2. Make intersecting shapes more visible by using different colors. 3. Animate self-intersecting shape.
36 lines
1.2 KiB
Kotlin
36 lines
1.2 KiB
Kotlin
import org.openrndr.application
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import org.openrndr.color.ColorRGBa
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import org.openrndr.draw.LineJoin
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import org.openrndr.math.Vector2
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import org.openrndr.shape.ShapeContour
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import org.openrndr.shape.intersections
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import kotlin.math.PI
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import kotlin.math.cos
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import kotlin.math.sin
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fun main() = application {
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program {
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val points = 200
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extend {
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val contour = ShapeContour.fromPoints(
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List(points) {
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val a = PI * 2 * it / points
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val x = (200 + 50 * cos(a * 2)) * sin(a * 3 + sin(a))
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val y = 150 * cos(a * 2 + seconds * 0.2)
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Vector2(x, y)
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}, closed = true
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)
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val ints = intersections(contour, contour)
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drawer.run {
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clear(ColorRGBa.WHITE)
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translate(width * 0.5, height * 0.5)
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fill = null
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stroke = ColorRGBa.BLACK
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lineJoin = LineJoin.ROUND
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contour(contour)
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fill = ColorRGBa.PINK.opacify(0.3)
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circles(ints.map { it.position }, 10.0)
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}
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}
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}
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} |