feat: add one point support for line mark. (#306)

Co-authored-by: dan12411 <[email protected]>
entronad · Jul 26, 2024 · 0cd16d1 · 0cd16d1
1 parent 44fbd01
commit 0cd16d1
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Showing 2 changed files with 8 additions and 4 deletions.
diff --git a/lib/src/graffiti/element/polyline.dart b/lib/src/graffiti/element/polyline.dart
@@ -37,7 +37,7 @@ class PolylineElement extends PrimitiveElement {
     double? rotation,
     Offset? rotationAxis,
     String? tag,
-  })  : assert(points.length >= 2),
+  })  : assert(points.isNotEmpty),
         super(
           style: style,
           rotation: rotation,

diff --git a/lib/src/shape/line.dart b/lib/src/shape/line.dart
@@ -105,11 +105,15 @@ class BasicLineShape extends LineShape {
     final primitives = <MarkElement>[];
 
     final represent = group.first;
-    final style = getPaintStyle(
-        represent, true, represent.size ?? defaultSize, coord.region, dash);
+    final strokeWidth = represent.size ?? defaultSize;
+    final style =
+        getPaintStyle(represent, true, strokeWidth, coord.region, dash);
 
     for (var contour in contours) {
-      if (smooth) {
+      if (contour.length == 1) {
+        primitives.add(CircleElement(
+            center: contour[0], radius: strokeWidth / 2, style: style));
+      } else if (smooth) {
         primitives.add(SplineElement(
             start: contour.first,
             cubics: getCubicControls(contour, false, true),