DemoTunniPoint01.kt

package tunni

import org.openrndr.application
import org.openrndr.color.ColorRGBa
import org.openrndr.extra.shapes.tunni.tunniLine
import org.openrndr.extra.shapes.tunni.tunniPoint
import org.openrndr.extra.shapes.tunni.withTunniLine
import org.openrndr.shape.Circle
import kotlin.math.cos

fun main() {
    application {
        program {
            extend {
                drawer.clear(ColorRGBa.WHITE)
                drawer.fill = ColorRGBa.BLACK
                val c = Circle(drawer.bounds.center, 200.0).contour

                drawer.fill = null
                for (s in c.segments) {
                    val tp = s.tunniPoint
                    drawer.circle(tp, 10.0)
                    val sc = s.cubic
                    drawer.lineSegment(sc.control[0], sc.control[1])
                    //drawer.segment(s.withTunniPoint(tp + (mouse.position - drawer.bounds.center)/2.0))
                    drawer.segment(s.withTunniLine(s.tunniLine.position(0.5) + s.tunniLine.normal * cos(seconds) * 40.0))

                }
                drawer.contour(c)
            }
        }
    }
}