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Demos: ensure all use fun main() = application {

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- Adjust some demo window sizes.
- Replace Random.double by Double.uniform
- Tweak some demos so screenshots look more interesting
This commit is contained in:
Abe Pazos
2025-01-26 20:57:04 +01:00
parent 1975a820fc
commit c8f7dd52c6
116 changed files with 2889 additions and 2942 deletions
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106
orx-jvm/orx-boofcv/src/demo/kotlin/DemoSimplified01.kt
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@@ -17,63 +17,65 @@ import org.openrndr.math.Vector2
import org.openrndr.shape.Rectangle
import org.openrndr.shape.ShapeContour
fun main() {
application {
program {
// Create a buffer where to draw something for boofcv
val rt = renderTarget(width, height) {
colorBuffer()
depthBuffer()
}
// Draw some shapes on that buffer
drawer.isolatedWithTarget(rt) {
clear(ColorRGBa.BLACK)
fill = ColorRGBa.WHITE
stroke = null
rectangle(Rectangle.fromCenter(bounds.position(0.33, 0.5),
150.0, 150.0))
translate(bounds.position(0.62, 0.5))
rotate(30.0)
rectangle(Rectangle.fromCenter(Vector2.ZERO, 200.0, 200.0))
rectangle(0.0, -200.0, 60.0, 60.0)
circle(0.0, 190.0, 60.0)
}
// Convert the bitmap buffer into ShapeContours
val vectorized = imageToContours(rt.colorBuffer(0))
fun main() = application {
program {
// Create a buffer where to draw something for boofcv
val rt = renderTarget(width, height) {
colorBuffer()
depthBuffer()
}
// Draw some shapes on that buffer
drawer.isolatedWithTarget(rt) {
clear(ColorRGBa.BLACK)
fill = ColorRGBa.WHITE
stroke = null
rectangle(
Rectangle.fromCenter(
bounds.position(0.33, 0.5),
150.0, 150.0
)
)
translate(bounds.position(0.62, 0.5))
rotate(30.0)
rectangle(Rectangle.fromCenter(Vector2.ZERO, 200.0, 200.0))
rectangle(0.0, -200.0, 60.0, 60.0)
circle(0.0, 190.0, 60.0)
}
// Convert the bitmap buffer into ShapeContours
val vectorized = imageToContours(rt.colorBuffer(0))
// Show amount of segments in each shape (high number)
vectorized.forEachIndexed { i, it ->
println("boofcv shape $i: ${it.segments.size} segments")
}
// Show amount of segments in each shape (high number)
vectorized.forEachIndexed { i, it ->
println("boofcv shape $i: ${it.segments.size} segments")
}
// Make a simplified list of points
val simplePoints = vectorized.map {
simplify(it.adaptivePositions(), 4.0)
}.filter { it.size >= 3 }
// Make a simplified list of points
val simplePoints = vectorized.map {
simplify(it.adaptivePositions(), 4.0)
}.filter { it.size >= 3 }
// Use the simplified list to make a smooth contour
val smooth = simplePoints.map {
CatmullRomChain2(it, 0.0, true).toContour()
}
// Use the simplified list to make a smooth contour
val smooth = simplePoints.map {
CatmullRomChain2(it, 0.0, true).toContour()
}
// Use the simplified list to make a polygonal contour
val polygonal = simplePoints.map {
ShapeContour.fromPoints(it, true)
}
// Use the simplified list to make a polygonal contour
val polygonal = simplePoints.map {
ShapeContour.fromPoints(it, true)
}
// Show amount of segments in simplified shapes (low number).
// Note: `smooth` and `polygonal` have the same number of segments
smooth.forEachIndexed { i, it ->
println("simplified shape $i: ${it.segments.size} segments")
}
// Show amount of segments in simplified shapes (low number).
// Note: `smooth` and `polygonal` have the same number of segments
smooth.forEachIndexed { i, it ->
println("simplified shape $i: ${it.segments.size} segments")
}
extend {
drawer.run {
fill = null // ColorRGBa.PINK.opacify(0.15)
stroke = ColorRGBa.PINK.opacify(0.7)
contours(polygonal)
contours(smooth)
}
extend {
drawer.run {
fill = null // ColorRGBa.PINK.opacify(0.15)
stroke = ColorRGBa.PINK.opacify(0.7)
contours(polygonal)
contours(smooth)
}
}
}
@@ -97,4 +99,4 @@ fun imageToContours(input: ColorBuffer): List<ShapeContour> {
// orx-boofcv: convert vector data to OPENRNDR ShapeContours
return contours.toShapeContours(true, internal = true, external = true)
}
}