refactor: 移除地面填充绘制逻辑

webui/src/components/Geometry.vue

@@ -293,16 +293,6 @@ const drawGround = (range: ReturnType<typeof calculateRange>) => {
   ctx.moveTo(toCanvasX(leftX, range), toCanvasY(leftY, range))
   ctx.lineTo(toCanvasX(rightX, range), toCanvasY(rightY, range))
   ctx.stroke()
-
-  // 地面填充
-  ctx.fillStyle = 'rgba(121, 85, 72, 0.1)'
-  ctx.beginPath()
-  ctx.moveTo(toCanvasX(leftX, range), toCanvasY(leftY, range))
-  ctx.lineTo(toCanvasX(rightX, range), toCanvasY(rightY, range))
-  ctx.lineTo(toCanvasX(rightX, range), toCanvasY(-50, range))
-  ctx.lineTo(toCanvasX(leftX, range), toCanvasY(-50, range))
-  ctx.closePath()
-  ctx.fill()
 }
 
 // 监听参数变化