使用样板或模版，或者干脆徒手画。
Ideogramic还允许在图上进行徒手画。
在这幅画的其他部分，蒙德里安显然是用徒手画的，完全没有用纸条引导。
In other parts of the painting, Mondrian clearly painted freehand, with no paper to guide him.
机械制图和建筑绘图课程是没有必要的，事实上，可能会比一般学科和徒手画类的有用。
Courses in mechanical drawing and architectural drawing are not necessary and, in fact, may be less useful than general academic subjects and freehand drawing classes.
分析了徒手画曲线的性质，提出了徒手画曲线的主曲线概念，并提供了一种搜索该主曲线的折线逼近算法，自适应地得到主曲线；
This paper analyzed the character of sketch curve and developed the concept of principal curve of sketch curve, and provided an adaptive algorithm by polygonal line for approximating principal curve.
在最后一张细节图上有很多值得注意的地方：在条带下面，你可以找到蒙德里安小心的在线条上收尾，改过他徒手水平画的痕迹。
There is a lot to see in this last detail: underneath the stripe, you can see where Mondrian carefully edged his brush up to the stripe, overlapping some horizontal marks he'd made freehand.
在最后一张细节图上有很多值得注意的地方：在条带下面，你可以找到蒙德里安小心的在线条上收尾，改过他徒手水平画的痕迹。
There is a lot to see in this last detail: underneath the stripe, you can see where Mondrian carefully edged his brush up to the stripe, overlapping some horizontal marks he'd made freehand.
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