| 摘要 |
<p>A CAD system for a building promts the system user to input the kind of a constituent element that the system user desires to draw (at step 201), to input a reference line (at Step 202), to input the position of the constituent element on the basis of the reference line (at Step 203), and to input the size of the constituent element (at Step 204), and draws the constituent element of the kind having the size in the position of a layer related to the constituent element according to the expression rule (at Step 205).</p> |
