| 摘要 |
<p>PURPOSE:To omit the input of a pattern defining sentence supplied from a keyboard and to define a new pattern element without using any code added to a pattern element, by using the defining method of the the picked pattern element and this pattern element to daw the raw pattern element on a display screen. CONSTITUTION:The pattern defining sentences of the necessary points, straight lines and circuit circles are supplied through a keyboard 105 and drawn on a CRT 106. Under such conditions, a prescribed menu item MN is picked up by a cursor 108c on a menu table 108b. Then the defining method is indicated for pattern elements and an intersecting point between two straight lines, for example, is defined. When two straight lines Si and Sj drawn on a display screen are indicated by a graphic cursor GCS, a processor 102 defines a new pattern element (Pm) by means of the picked pattern defining method and pattern elements (Si, Sj). This element (Pm) is stored in a RAM 103 and also drawn on the display screen.</p> |
