docs: Turtle Keyframes Example ( Fixes #251 )

Author: StartAutomating

Examples/Keyframes.turtle.ps1

@@ -0,0 +1,58 @@
+<#
+.SYNOPSIS
+    Turtles can now use keyframes
+.DESCRIPTION
+    Turtles can now use CSS keyframes.
+
+    Here are a few examples.
+#>
+
+turtle id wiggle-square square 42 fill '#4488ff' stroke '#224488' keyframe ([Ordered]@{
+    'wiggle3d' = [Ordered]@{
+        '0%,100%' = [Ordered]@{
+            transform = "rotateX(-3deg) rotateY(-3deg) rotateZ(-3deg)"            
+        }
+        '50%' = [Ordered]@{
+            transform = "rotateX(3deg) rotateY(3deg) rotateZ(3deg)"
+        }
+    }
+}) pathclass wiggle3d save ./Keyframes-Wiggle-Square.svg
+
+
+turtle viewbox 84 id moving-square square 42 fill '#4488ff' stroke '#224488' keyframe ([Ordered]@{
+    'moving-in-3d' = [Ordered]@{
+        '0%,100%' = [Ordered]@{
+            transform = "translate3d(0ch, 2ch, 5em) rotateY(-180deg)"            
+        }
+        '50%' = [Ordered]@{
+            transform = "translate3d(5ch, 1ch, 5em) rotateY(0deg)"            
+        }
+    }
+}) pathclass moving-in-3d save ./Keyframes-Moving-Square.svg
+
+turtle id "wow-wow-wow-wow-wow" keyframe @{
+    'bigger-font' = [Ordered]@{
+        '0%' = @{
+            'font-size' = '1rem'
+        }
+        '16%' = @{
+            'font-size' = '2rem'
+        }
+        '32%' = @{
+            'font-size' = '5rem'
+        }
+        '48%' = @{
+            'font-size' = '10rem'
+        }
+        '64%' = @{
+            'font-size' = '15rem'
+        }
+        '100%' = @{
+            'font-size' = '20rem'
+        }
+    }
+} duration '00:00:01.68' TextAttribute @{
+    class='bigger-font'
+} text ["wow"] save ./Keyframes-Wow.svg
+
+