EntityQ1794385· pop 22· linked from 10 articlescurvimeterSign in to savethumbnail|An opisometerArticle4 sectionsContentsExplanationHistory of the opisometerSee alsoReferencesthumbnail|An opisometerAn opisometer, also called a curvimeter, meilograph, or map measurer, is an instrument for measuring the lengths of arbitrary curved lines.Read full article (9 paragraphs)Gallery (2)ConnectionsInternational Standard Book NumberEntitymapEntityCategoriesCartographyLength, distance, or range measuring devicesNavigational equipment