(1663-1724. Född i Kamlach, död i Nürnberg.
Tysk kartograf. Han fick sin första undervisning hos jesuiterna i sin hemstad och skulle ha blivit munk men gick istället över till den evangeliska kyrkan. Bosatte sig i Nürnberg där han 1687 blev notarie. Som hobby började han på lediga stunder att kopiera kartor. Det visade sig snart att han hade betydande talang som kartritare, och 1702 grundlade han sitt eget kartförlag. Han fick snart rykte som den mest betydande av tyska kartografer, och hans kartor nådde en stor publik. Totalt ritade han 200 olika landkartor, något färre jordglober, astronomiska instrument och andra mekaniska arbeten. Hans stora världsatlas, 'Grosser Atlas ueber die ganze Welt', kom 1716 i 126 blad, och 'Atlas methodicus' år 1719 i 18 blad. Hans son, Johann Christoph Homann, fortsatte verksamheten efter faderns död.
Johann Baptist Homann (20 March 1664 – 1 July 1724) was a German geographer and cartographer, who made maps of the Americas.
Life
Homann was born in Oberkammlach near Kammlach in the Electorate of Bavaria. ...
Bland arbeten.
Grosser Atlas ueber die ganze Welt.
Atlas methodicus.
Död 1611.
Tysk kopparstickare, son till kopparstickaren Theodore de Bry (se denne). Han samarbetade med sin far och bror Johann Theodore de Bry (se denne), bl.a. med verket 'India Orientalis' som kom i flera band omkring 1599 och i senare utgåvor.
Bland arbeten.
India Orientalis.
Thieme-Becker. - Wieder.
(fl. 1790-1812). Publisher at the sign of the Little Midshipman, later called Navigation Warehouse No. 157 Leadenhall Street. Joined by Williams 1768 [Heather & Williams] - up to 1800; succeeded by Norie 1812.
Bland arbeten.
Clements' Thames 1791, China Seas 1799, Pilot American Ocean 1795-1801, Harbours Brit. Channel 1801, New Mediterranean Pilot 1802, Andaman & Nicobar Is. 1803, New North Sea Pilot 1807, Marine Atlas 1808, North Amer. Pilot 1810, Pilot London Spain 1810, Pilot Brazils 1811, World 1812.
Tooley
Karta öfver Stockholm. - 1904.
'Plan de Paris' / 'Plan de Turgot' - Louis Bretez 1734-1739.
Cassini de Thury, César-François
Biografiska uppgifter:17 June 1714 – 4 September 1784
César-François Cassini de Thury (17 June 1714 – 4 September 1784), also called Cassini III or Cassini de Thury, was a French astronomer and cartographer.
Cassini de Thury was born in Thury-sous-Clermont (Oise), the second son of Jacques Cassini and Suzanne Françoise Charpentier de Charmois. He was a grandson of Giovanni Domenico Cassini, and would become the father of Jean-Dominique Cassini, Comte de Cassini.
In 1735, he became a member of the French Academy of Sciences as a supernumerary adjunct astronomer, in 1741 as an adjunct astronomer, and in 1745 as a full member astronomer.
In January, 1751 he was elected a Fellow of the Royal Society.
He succeeded to his father’s official position in 1756 and continued the hereditary surveying operations. In 1744, he began the construction of a great topographical map of France, one of the landmarks in the history of cartography. Completed by his son Jean-Dominique, Cassini IV and published by the Académie des Sciences from 1744 to 1793, its 180 plates are known as the Cassini map(fr).
The post of director of the Paris observatory was created for his benefit in 1771 when the establishment ceased to be a dependency of the French Academy of Sciences.
His chief works are: La méridienne de l’Observatoire Royal de Paris (1744), a correction of the Paris meridian; Description géométrique de la terre (1775); and Description géométrique de la France (1784), which was completed by his son ('Cassini IV').
César-François Cassini de Thury died of smallpox in Paris on 4 September 1784,
The Cassini projection is a map projection described by César-François Cassini de Thury in 1745. It is the transverse aspect of theequirectangular projection, in that the globe is first rotated so the central meridian becomes the 'equator', and then the normal equirectangular projection is applied.
In practice, the projection has always been applied to models of the earth as an ellipsoid, which greatly complicates the mathematical development but is suitable for surveying. Nevertheless the use of the Cassini projection has largely been superseded by the Transverse Mercator projection, at least with central mapping agencies.
Areas along the central meridian, and at right angles to it, are not distorted. Elsewhere, the distortion is largely in a north-south direction, and varies by the square of the distance from the central meridian. As such, the greater the longitudinal extent of the area, the worse the distortion becomes.
Due to this, the Cassini projection works best on long, narrow areas, and worst on wide areas.
