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2.1 线条的排列
2.1.1 平行直线
钢笔绘画中最常用到的线条排列形式是平行直线的排列。较多的直线排列在一起便可以形成面,而线条排列的疏密会影响面的明度变化。绘画时,要注意每条线之间的间距。
横向平行
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竖向平行
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斜向平行(一)
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斜向平行(二)
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直线的渐变
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向上密集
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向下密集
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向左密集
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向右密集
2.1.2 弧线
与直线相比,弧线更加随意,有变化。
横向弧线
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竖向弧线
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斜向弧线(一)
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斜向弧线(二)
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斜向弧线(三)
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斜向弧线(四)
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弧线的渐变
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向上密集
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向下密集
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向左密集
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向右密集
2.1.3 交叉直线
两条或三条不平行的直线交叉在一起,在绘画中可以得到不同的排线效果。
横向交叉
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双条交叉
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三条交叉
竖向交叉
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双条交叉
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三条交叉
2.1.4 交叉弧线
横向交叉
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双条交叉
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三条交叉
竖向交叉
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双条交叉
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三条交叉
2.1.5 垂直交叉线
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竖直密集交叉
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竖直稀疏交叉
在绘制交叉线时,要尽量避免竖直的“十”字形交叉。这样的排线使得网格排列过于明显,不利于物体的形体塑造,如左图所示。
2.1.6 不同种类的排线
除了以往的排线形式外还有很多可以创造发掘的排线形式。不同的排线形式具有不同的效果,使用不同的排线不但可以更准确与便捷地表现物体的明度与形态,还可以更加准确地描绘物体的质感。
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2.1.7 钢笔画中的明度
在绘制钢笔画时会涉及明度深浅变化的问题。素描中的亮灰暗是通过不同排线组合与用笔力度及深浅变化来实现的,钢笔往往只是用明度不变的墨水。所以绘制亮灰暗变化主要依靠不同的排线形式来实现,下面我们以几种不同的排线形式展示钢笔画中明度的深浅变化。
增加横向排线密度产生不同的明度。
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增加竖向排线密度产生不同的明度。
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增加倾斜排线密度产生不同的明度。
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增加交叉排线密度产生不同的明度。
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增加点密度产生不同的明度。
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