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[orx-fx] Add comments to demos

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This commit is contained in:
Abe Pazos
2025-09-23 19:20:42 +02:00
parent 857f3458e3
commit fd022e9d0e
16 changed files with 203 additions and 70 deletions
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60
orx-fx/src/jvmDemo/kotlin/DemoContour01.kt
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@@ -1,8 +1,3 @@
/**
* Demonstrate the Contour filter
* @author Edwin Jakobs
*/
import org.openrndr.application
import org.openrndr.color.ColorRGBa
import org.openrndr.draw.createEquivalent
@@ -11,6 +6,20 @@ import org.openrndr.extra.fx.edges.Contour
import org.openrndr.extra.imageFit.imageFit
import org.openrndr.extra.shapes.primitives.grid
/**
* Demonstrates the [Contour] filter.
* @author Edwin Jakobs
*
* This demo creates a grid of 2x2 to draw a loaded image four times,
* each using the [Contour] effect with different parameters.
*
* `actions` is a variable containing a list of 4 functions.
* Each of these functions sets the effect parameters to different values.
*
* The 4 grid cells and the 4 actions are used in pairs:
* first the action is called to set the effect parameters, the
* effect is applied, and the result is drawn in a cell.
*/
fun main() = application {
configure {
width = 720
@@ -19,33 +28,32 @@ fun main() = application {
program {
val image = loadImage("demo-data/images/image-001.png")
val contour = Contour()
contour.levels = 4.0
contour.window = 1
contour.outputBands = true
contour.contourColor = ColorRGBa.PINK
contour.backgroundOpacity = 0.0
val edges = image.createEquivalent()
val cells = drawer.bounds.grid(2, 2).flatten()
val actions = listOf(
{
contour.outputBands = true
contour.levels = 2.0
},
{
contour.outputBands = false
contour.levels = 2.0
},
{
contour.outputBands = false
contour.levels = 8.0
},
{
contour.outputBands = true
contour.levels = 8.0
},
)
extend {
val cells = drawer.bounds.grid(2, 2).flatten()
val actions = listOf(
{
contour.outputBands = true
contour.levels = 2.0
},
{
contour.outputBands = false
contour.levels = 2.0
},
{
contour.outputBands = false
contour.levels = 8.0
},
{
contour.outputBands = true
contour.levels = 8.0
},
)
for ((cell, action) in cells zip actions) {
action()
contour.apply(image, edges)