[openrndr-demos] Add rectangle batch demos

build.gradle

@@ -16,7 +16,7 @@ buildscript {
 apply plugin: 'org.jetbrains.dokka'
 
 project.ext {
-    openrndrVersion = openrndrUseSnapshot? "0.4.0-SNAPSHOT" : "0.3.44-rc.4"
+    openrndrVersion = openrndrUseSnapshot? "0.4.0-SNAPSHOT" : "0.3.44-rc.5"
     kotlinVersion = "1.3.72"
     spekVersion = "2.0.11"
     libfreenectVersion = "0.5.7-1.5.3"

openrndr-demos/src/demo/kotlin/DemoCompositionDrawer01.kt

@@ -1,36 +1,36 @@
 import org.openrndr.application
 import org.openrndr.color.ColorRGBa
 import org.openrndr.math.Vector2
-import org.openrndr.shape.CompositionDrawer
+import org.openrndr.shape.drawComposition
+import org.openrndr.svg.svgNamespaceInkscape
+import org.openrndr.svg.toSVG
 import org.openrndr.svg.writeSVG
 
 fun main() {
     application {
         program {
-
             extend {
-
                 drawer.clear(ColorRGBa.WHITE)
 
-                val cd = CompositionDrawer()
+                val composition = drawComposition {
-                val layer = cd.group {
+                    val layer = group {
                         fill = ColorRGBa.PINK
                         stroke = ColorRGBa.BLACK
                         strokeWeight = 10.0
-                    circle(Vector2(width/2.0, height/2.0), 100.0)
+                        circle(Vector2(width / 2.0, height / 2.0), 100.0)
                         circle(Vector2(200.0, 200.0), 50.0)
                     }
                     // demonstrating how to set custom attributes on the CompositionNode
                     // these are stored in SVG
                     layer.id = "Layer_2"
-                layer.attributes["openrndr:custom"] = "5"
+                    layer.attributes["inkscape:label"] = "Layer 1"
-
+                    layer.attributes["inkscape:groupmode"] = "layer"
+                }
                 // draw the composition to the screen
-                drawer.composition(cd.composition)
+                drawer.composition(composition)
 
                 // print the svg to the console
-                println(writeSVG(cd.composition))
+                println(composition.toSVG(namespaces = listOf(svgNamespaceInkscape)))
-
             }
         }
     }

openrndr-demos/src/demo/kotlin/DemoVolumeTexture01.kt

@@ -3,14 +3,8 @@ import org.openrndr.color.ColorRGBa
 import org.openrndr.draw.*
 import org.openrndr.extensions.Screenshots
 
-
 fun main() = application {
     program {
-
-        val screenshots = extend(Screenshots()) {
-
-        }
-
         val volumeTexture = VolumeTexture.create(128,128,32)
         val rt = renderTarget(128, 128) {
             volumeTexture(volumeTexture, 0)
@@ -18,9 +12,6 @@ fun main() = application {
 
         val cb = colorBuffer(128, 128)
         extend {
-
-            screenshots.afterScreenshot
-
             drawer.isolatedWithTarget(rt) {
                 drawer.ortho(rt)
                 drawer.clear(ColorRGBa.PINK)
@@ -28,6 +19,5 @@ fun main() = application {
             volumeTexture.copyTo(cb, 0)
             drawer.image(cb)
         }
-
     }
 }

openrndr-demos/src/demo/kotlin/DrawerRectangleBatch01.kt

@@ -0,0 +1,16 @@
+// A single rectangle
+
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+
+fun main() = application {
+    program {
+        extend {
+            drawer.clear(ColorRGBa.GRAY)
+            drawer.fill = ColorRGBa.PINK
+            drawer.stroke = ColorRGBa.WHITE
+            drawer.strokeWeight = 2.0
+            drawer.rectangle(100.0, 100.0, 50.0, 50.0)
+        }
+    }
+}

openrndr-demos/src/demo/kotlin/DrawerRectangleBatch02.kt

@@ -0,0 +1,29 @@
+// Stored rectangle batches
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.rectangleBatch
+
+fun main() = application {
+    program {
+        val batch = drawer.rectangleBatch {
+            fill = ColorRGBa.PINK
+            stroke = ColorRGBa.WHITE
+            for (i in 0 until 1000) {
+                strokeWeight = Math.random() * 5.0 + 1.0
+                val rwidth = Math.random() * 40.0 + 4.0
+                val rheight = Math.random() * 40.0 + 4.0
+                val x = Math.random() * width
+                val y = Math.random() * height
+                rectangle(x, y, rwidth, rheight, Math.random() * 360.0)
+            }
+        }
+
+        extend {
+            drawer.clear(ColorRGBa.GRAY)
+            drawer.fill = ColorRGBa.PINK
+            drawer.stroke = ColorRGBa.WHITE
+            drawer.strokeWeight = 2.0
+            drawer.rectangles(batch)
+        }
+    }
+}

openrndr-demos/src/demo/kotlin/DrawerRectangleBatch03.kt

@@ -0,0 +1,23 @@
+// Dynamic rectangle batches
+
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+
+fun main() = application {
+    program {
+        extend {
+            drawer.clear(ColorRGBa.GRAY)
+            drawer.fill = ColorRGBa.PINK
+            drawer.stroke = ColorRGBa.WHITE
+            drawer.strokeWeight = 2.0
+            drawer.rectangles {
+                for (y in 0 until height/20) {
+                    for (x in 0 until width/20) {
+                        rectangle(x * 20.0, y * 20.0, 10.0, 15.0, (x + y) * 10.0 + seconds*90.0)
+
+                    }
+                }
+            }
+        }
+    }
+}