[orx-shapes] Add Drawer.bezierPatches

2021-03-20 10:10:26 +01:00
parent a664907e0f
commit 9acd221f49
7 changed files with 620 additions and 26 deletions
--- a/orx-shapes/src/demo/kotlin/DemoBezierPatchDrawer03.kt
+++ b/orx-shapes/src/demo/kotlin/DemoBezierPatchDrawer03.kt
@@ -0,0 +1,68 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.isolated
+import org.openrndr.draw.loadFont
+import org.openrndr.extensions.SingleScreenshot
+import org.openrndr.extra.shapes.bezierPatch
+import org.openrndr.extra.shapes.drawers.bezierPatch
+import org.openrndr.extra.shapes.grid
+import org.openrndr.extras.color.spaces.toOKLABa
+import org.openrndr.math.Vector2
+import org.openrndr.math.Vector3
+import org.openrndr.math.min
+import org.openrndr.math.transforms.buildTransform
+import org.openrndr.shape.Circle
+import org.openrndr.shape.Rectangle
+import kotlin.math.min
+
+fun main() {
+    application {
+        configure {
+            width = 720
+            height = 720
+        }
+        program {
+            if (System.getProperty("takeScreenshot") == "true") {
+                extend(SingleScreenshot()) {
+                    this.outputFile = System.getProperty("screenshotPath")
+                }
+            }
+            extend {
+                drawer.clear(ColorRGBa.BLACK)
+                val colors = listOf(
+                    listOf(ColorRGBa.PINK.toOKLABa(), ColorRGBa.PINK.toOKLABa(), ColorRGBa.PINK.toOKLABa(), ColorRGBa.PINK.toOKLABa()),
+                    listOf(ColorRGBa.RED.toOKLABa(), ColorRGBa.RED.toOKLABa(), ColorRGBa.RED.toOKLABa(), ColorRGBa.RED.toOKLABa()),
+                    listOf(ColorRGBa.BLUE.toOKLABa(), ColorRGBa.BLUE.toOKLABa(), ColorRGBa.BLUE.toOKLABa(), ColorRGBa.BLUE.toOKLABa()),
+                    listOf(ColorRGBa.WHITE.toOKLABa(), ColorRGBa.WHITE.toOKLABa(), ColorRGBa.WHITE.toOKLABa(), ColorRGBa.WHITE.toOKLABa()),
+                )
+
+                val grid = drawer.bounds.grid(4,4, marginX = 20.0, marginY = 20.0, gutterX = 10.0, gutterY = 10.0)
+
+                val cellWidth = grid[0][0].width
+                val cellHeight = grid[0][0].height
+
+                val a = bezierPatch(Rectangle.fromCenter(Vector2(0.0, 0.0), cellWidth, cellHeight).contour)
+                    .withColors(colors)
+
+                val b = bezierPatch(
+                    Circle(0.0, 0.0, min(cellWidth, cellHeight) / 2.0).contour.transform(
+                        buildTransform {
+                            rotate(Vector3.UNIT_Z, 45.0)
+                        }
+                    )
+                ).withColors(colors)
+
+                for (y in grid.indices) {
+                    for (x in grid[y].indices) {
+                        val f = (y * grid[y].size + x).toDouble() / (grid.size * grid[y].size - 1.0)
+                        val blend = a * (1.0 - f) + b * f
+                        drawer.isolated {
+                            drawer.translate(grid[y][x].center)
+                            drawer.bezierPatch(blend)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}