diff --git a/components/model/line.vue b/components/model/line.vue
index 66192d3..c6b54b3 100644
--- a/components/model/line.vue
+++ b/components/model/line.vue
@@ -44,7 +44,7 @@ const count_pos = () => {
         line1.getWorldPosition(line1_pos)
         console.log('first', line1, line1_size, line1_pos)
     }
-    const k = ((line1_size.x / props.count) ) * 0.5
+    const k = ((line1_size.x / props.count) - line1_size.z) * 0.5
     switch (props.number) {
         case 1: break;
         case 2: