c8f7dd52c6
- Adjust some demo window sizes. - Replace Random.double by Double.uniform - Tweak some demos so screenshots look more interesting
47 lines
1.4 KiB
Kotlin
47 lines
1.4 KiB
Kotlin
import org.openrndr.application
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import org.openrndr.extra.camera.Camera2D
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import org.openrndr.extra.viewbox.viewBox
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import org.openrndr.math.transforms.transform
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import org.openrndr.shape.Rectangle
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/**
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* Demonstrates how to create a viewBox with an interactive 2D camera and
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* display it multiple times.
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*
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* Instead of calling the viewBox's `.draw()` method multiple times,
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* we call its `.update()` method once, then draw its `.result`
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* repeatedly, in a grid of 4 columns and 4 rows.
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*
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* The camera's initial rotation and scaling are specified as a transformation matrix.
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* To control the camera use the mouse wheel and buttons on the top-left view.
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*/
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fun main() = application {
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configure {
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width = 720
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height = 720
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}
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program {
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val vbx = viewBox(Rectangle(0.0, 0.0, 200.0, 200.0)) {
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extend(Camera2D()) {
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// Set the initial view for the camera
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view = transform {
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rotate(30.0)
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scale(2.0)
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}
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}
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extend {
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drawer.rectangle(20.0, 20.0, 100.0, 100.0)
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}
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}
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extend {
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vbx.update()
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for (j in 0 until 4) {
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for (i in 0 until 4) {
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drawer.image(vbx.result, j * 200.0, i * 200.0)
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}
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}
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}
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}
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}
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