用图来状物纪事的起源很早,在中国宋代苏颂和赵公廉所著《新仪象法要》中已附有天文报时仪器的图样,明代宋应星所著《天工开物》中也有大量的机械图样,但这些都很不严谨。1799年,法国学者蒙日发表《画法几何》著作,自此机械图样中的图形开始严格按照画法几何的投影理论绘制。 The origins of the use of pictorial objects are very early. In the “new method of applying the new method of image” written by Su Song and Zhao Gonglian in the Song Dynasty in China, there were also drawings of astronomical timekeeping instruments. There was also a large amount of “Heavenly Creations” in the Song Dynasty Mechanical drawings, but these are not rigorous. In 1799, the French scholar Montagne published the book “Painting Geometry”. Since then, the drawings in mechanical drawings have been drawn strictly in accordance with the projection theory of the painting geometry.