diff --git a/src/surface/sf_curve.scad b/src/surface/sf_curve.scad
index 022422ac..37542700 100644
--- a/src/surface/sf_curve.scad
+++ b/src/surface/sf_curve.scad
@@ -5,10 +5,23 @@ use <ptf/ptf_rotate.scad>;
 module sf_curve(levels, points, thickness, depth, invert = false) {
     rows = len(levels);
     columns = len(levels[0]);
+    leng_points = len(points);
+
+    assert(leng_points > columns, "The length of `points` must be greater than the column length of `levels`");
+    
+    to = leng_points - 1;
+    pts = (leng_points + 1 == columns) ? points :
+        // resample 
+        let(diff = leng_points / columns)
+        [
+            for(i = [0:columns]) 
+            let(idx = floor(diff * i))
+            points[idx > to ? to : idx]
+        ];
 
     normal_vts = [
 		for(i = [0:columns - 1]) 
-		let(v = points[i + 1] - points[i])
+		let(v = pts[i + 1] - pts[i])
 		ptf_rotate(v / norm(v), [0, -90, 0])
 	];
 		
@@ -19,11 +32,10 @@ module sf_curve(levels, points, thickness, depth, invert = false) {
 		for(y = [0:rows - 1])
 		[
 			for(x = [0:columns - 1]) 
-			let(p = points[x])
+			let(p = pts[x])
 			[p[0], y, p[2]] + normal_vts[x] * s[y][x][2]
 		]
 	];
-
 	
 	sf_solidify(_curve(surfaces[0]), _curve(surfaces[1]));
 }
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