add example

examples/pixel_vase.scad

@@ -0,0 +1,44 @@
+include <bezier_curve.scad>;
+include <pixel/px_line.scad>;
+include <pixel/px_polyline.scad>;
+include <pixel/px_cylinder.scad>;
+
+x1 = 5;
+x2 = 20;
+x3 = 8;
+thickness = 1;
+
+module pixel_vase(x1, x2, x3, thickness) {
+    p0 = [x1, 0, 0];
+    p1 = [10, 0, 4];
+    p2 = [x2, 0, 8];
+    p3 = [3, 0, 20];
+    p4 = [x3, 0, 30];
+
+    rounded_points = [for(pt = bezier_curve(0.1, 
+        [p0, p1, p2, p3, p4]
+    )) [round(pt[0]), round(pt[1]), round(pt[2])]];
+
+    px_path = px_polyline(rounded_points);
+    leng = len(px_path);
+
+    for(p = px_cylinder(px_path[0][0], 1, true)) { 
+        linear_extrude(1) union() {
+            translate([p[0], p[1]])
+                square(1.1, center = true);
+        }
+    }
+
+    for(i = [0:leng - 1]) {
+        r = px_path[i][0];
+        for(p = px_cylinder(r, 1, thickness = thickness)) { 
+            translate([0, 0, i]) 
+                linear_extrude(1) union() {
+                    translate([p[0], p[1]])
+                        square(1.1, center = true);
+                }
+        }
+    }  
+}    
+
+pixel_vase(x1, x2, x3, thickness);