| 摘要 |
The invention relates to a drawing aid (1) for transferring, at least indirectly, dots (3) of at least one object (4) observed by a person, such as a draughtsman onto a drawing medium (2), which drawing aid comprises: - at least one primary element (5), which is optically transparent and has a grid pattern of lines in which two sets (E) of lines (6, 7) can be distinguished, in each of which sets the spaced lines are oriented in a preferred direction (D1, D2), the said directions (D1, D2) intersecting, and - at least one secondary element (8) for transferring dots plotted using the primary element (5), the said secondary element (8) has a grid pattern similar to that of the primary element, that is to say including lines (9, 10) organised in the same grid arrangement, but possibly with a different scale compared to the said grid pattern. <IMAGE>
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