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在工业产品设计中,效果图的绘制离不开透视画法。目前我们所采用的透视方法(平行透视、成角透视等)适用于简炼一般的形体,并要求形体有一定的规律和条件。形体的面线或平行于画面、基面,或垂直于画面、基面,很容易找到形体上的点、线在投影面上的特殊位置。如遇到较为复杂的形体如五方体、三棱锥等,此种画法便无能为力。我在实践中摸索出了一种简而易行的透视画法——网格坐标定点法,可适用于较为复杂的无规则的形体。
In the industrial product design, renderings can not be separated from the perspective of painting. At present, the perspective method we adopted (parallel perspective, angled perspective, etc.) is suitable for simplifying the general shape and requires the body to have certain rules and conditions. Body shape line or parallel to the screen, the base surface, or perpendicular to the screen, the base surface, it is easy to find the shape of the point, the line in a special position on the projection surface. In case of more complex body such as pentagonal, triangular pyramid, etc., this painting can do nothing. In practice, I worked out a simple and easy perspective method - grid coordinates fixed point method, can be applied to more complex irregular shape.