55 lines
1.5 KiB
Kotlin
55 lines
1.5 KiB
Kotlin
package adjust
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import org.openrndr.application
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import org.openrndr.color.ColorRGBa
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import org.openrndr.extra.shapes.adjust.adjustContour
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import org.openrndr.math.Vector2
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import kotlin.math.cos
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import kotlin.math.sin
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/**
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* Demonstrates how to select and alter the edges of a rectangle.
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*
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* The rectangle is a scaled-down version window bounds.
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*
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* By default, the edges of a rectangular contour are linear, so the `edge.toCubic()` method
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* is called to make it possible to bend them.
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*
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* Then various edges are selected one by one and transformed over time using operations like
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* scale, rotate, splitAt and moveBy.
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*
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*/
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fun main() = application {
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configure {
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width = 800
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height = 800
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}
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program {
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extend {
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var contour = drawer.bounds.scaledBy(0.5, 0.5, 0.5).contour
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contour = adjustContour(contour) {
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for (i in 0 until 4) {
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selectEdge(i)
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edge.toCubic()
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}
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selectEdge(0)
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edge.scale(0.5, 0.5)
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edge.rotate(cos(seconds * 0.5) * 30.0)
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selectEdge(1)
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edge.toCubic()
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edge.splitAt(0.5)
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edge.moveBy(Vector2(cos(seconds * 10.0) * 40.0, 0.0))
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//edge.next?.select()
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selectEdge(3)
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edge.moveBy(Vector2(0.0, sin(seconds * 10.0) * 40.0))
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}
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drawer.stroke = ColorRGBa.RED
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drawer.contour(contour)
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}
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}
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}
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