About the Sample Images

This documentation uses several sample images as examples in various topics.




The bronze sample image shows the equestrian statue of Henry IV (1553 - 1610) that stands at the Place du Pont Neuf just above the Square du Vert-Galant in the romantic heart of Paris.


Henry of Navarre became the first Bourbon king of France in 1589 at the age of thirty-five when his predecessor, Henry III, was assassinated. After a life of great difficulties as well as immense accomplishments Henry IV was assassinated on Friday, 14 May 1610. He was killed by a demented man who stabbed the king twice after leaping onto the royal coach when it was slowed by traffic congestion. (The king had previously escaped another assassination attempt in 1594 when a law student had attempted to stab him at the Hotel de Schomberg.)


Henry IV completed the Pont Neuf, which was begun during the reign of Henry III. He had become king under trying circumstances without the acceptance of the population but during his reign had won the hearts and minds of the French people. Henry IV proved to be a master of practical politics and directed the expansion of French power in Europe and overseas in North America. His support for exploration yielded discoveries such as Lake Champlain. At home, the king supported arts, learning and architecture. He died a beloved king, especially among common folk. Historians have long regarded him as one of the greatest of French kings.


The first equestrian monument to Henry IV was placed at the Pont Neuf by his widow, Marie de Medici. It was smashed by a revolutionary mob in 1792. In 1818 the next generation wished once more to remember the great king and emplaced the current monument. The Henry IV we see today was poured using bronze taken from the statue of Napoleon that was removed from the Vendome column.




The schloss image shows the famous Neuschwanstein castle built by Bavaria's King Ludwig II (1845 - 1886) between 1869 and 1886. "Schloss" is a German word used for castle or chateau. Ludwig II was a man obsessed with romantic images of a medieval Germany that never was. He squandered his fortune building elaborate and expensive fairy-tale castles. The unfinished Neuschwanstein was the last and most dramatic of all.


Set where the Bavarian plain meets soaring Alps, the castle perches within a dramatic landscape of vertical crags and plummeting gorges. The photograph was shot from the Marienbrucke footbridge that vaults over a waterfall in the mountains above Neuschwanstein.


Although it is built in the imagined style of castles of medieval times, Neuschwanstein was created in the late 1800's as a dream castle for Ludwig II's personal fantasies. It is not a practical fortification even though it is sited at highly defensible location once occupied by a true, fighting castle. Numerous design themes within the interior recall epic sagas and themes from Wagner's operas. The interior is only partly completed with sumptuous rooms for the king's apartments (including an artificial cave), a Singer's Hall for musical performances and a breath-taking throne room.


The king stayed at Neuschwanstein for but a few days during the latter stages of construction. In 1886 he was beset by creditors and facing bankruptcy when a Bavarian government commission declared him mentally deranged. A delegation sent to Neuschwanstein convinced him to leave the castle on 12 June and return to Munich for treatment. The next day, the king and his personal physician, Dr. Gudden, both were found dead in the Starnberg See, a large lake on the route from Neuschwanstein to Munich. An inquiry failed to reveal whether the deaths were an accident, suicide or murder.


The Free State of Bavaria now owns Neuschwanstein and operates it as one of Bavaria's most popular tourist attractions. In life a distant and lonely man, in death Ludwig II has become a Bavarian pop icon.




The globe image shows the elevations of the entire Earth using a false color palette to code height. The data used originates in the Global Land One-km Base Elevation ("GLOBE") project at NOAA. The GLOBE project created a one kilometer gridded digital elevation database for the entire Earth.


Several hundred megabytes of data were downloaded from the GLOBE web pages to build a worldwide digital elevation database. This data was then interpolated into a lower resolution data set suitable for casual browsing and background map image generation. This lower resolution data set was then imaged using RasterLab, an internal development tool that was created at manifold.net and used for development and verification of the raster algorithms employed within Manifold System.


The height palette used in the sample image provides relatively low contrast. This image was deliberately selected for use as a sample so that the effects of various image-enhancing commands could easily be seen.




The SanFran image is a sample Landsat 7 image downloaded from a USGS web site as a .jpg image. This is path 44, row 34 using Band 3, 2, and 1. Composition of Landsat bands into a .jpg format image was done by USGS. Date of acquisition is not known but is believed to be spring of 1999. The image shows the spring runoff from the Sierra Nevada mountains and other neighboring mountains into San Francisco Bay and out into the Pacific.


Clearly visible are the numerous regions and famous landmarks of this fascinating area. In the upper right is the Delta, the confluence of the Sacramento and the San Joaquin rivers. The waters of this region drain through Suisun Bay, through Carquinez Strait and into San Pablo Bay, the large and shallow bay at the northern extremity of San Francisco Bay. The South Bay is the local term for the large, mostly shallow part of the bay that reaches from San Francisco to the South and East. A less enclosed bay is the upper portion of Monterey Bay in the Pacific Ocean, visible at the bottom of the image.


This region is the home of the microprocessor, invented by Ted Huff at Intel in Santa Clara in 1971. The Santa Clara Valley ("Silicon Valley" or simply "The Valley" to locals) is the heavily developed region at the Southeast extremity of the South Bay. The first commercial microprocessor was the Intel 4004, which contained about 2300 transistors on a die ("chip") slightly larger than one inch square.


Although well known for silicon technology, the region is also the epicenter of the venture capital funding revolution that has powered business and technology breakthroughs in software, systems, biotechnology and most recently, the Internet. It is also a center of weapons technology. The Livermore Valley appears as a horizontal streak of development just East of the South Bay. Livermore is the home of the Lawrence Livermore National Laboratory, the nuclear weapons design center created as an alternative to Los Alamos in the 1950's with an initial mission focussing on the development of thermonuclear weapons. The nuclear weapons storage depot near Suisun Bay in Concord is said to host one of the highest concentrations of nuclear weapons in the world.


This image reveals an interesting juxtaposition. On the original image (provided on the Manifold CD) we can see beige and duff yellow colored regions on the edge of the bay near Silicon Valley. These are salt ponds where seawater is evaporated in the commercial production of salt. The same region where people invent and manufacture the most advanced technology ever conceived is also the place where one of the most ancient production processes continues to be practiced.




The Manifold System splash screens used for 5.xx and 6.xx series releases show the church of San Giorgio on the island of San Giorgio in Venice seen in a view across the Canale de San Marco from the campanile (bell tower) in St. Mark's plaza. The island of San Giorgio has been the site of a monastery since 982.


The patron saint of Venice is St. George. The church in his name was designed by Andrea Palladio and was begun in 1566. Other surviving buildings in Venice by Palladio include the Basilica, the Loggia Bernardo, the Palazzo Chiericati and the Villa Capra. To get to San Giorgio from St. Mark's square, take water taxis (vaporetti) 52 or 82.


The image is taken from a photograph shot the day after the total eclipse of the sun in central Europe on August 11, 1999, which was witnessed by the manifold.net team in commemoration of the official launch of Release 5.x development.


The August 11 eclipse path crossed most of Europe's most populated areas but was cursed with cloudy weather. Manifold 4.50 was used on laptops with GPS devices to find a location between Munich and Salzburg on the totality path that (given satellite weather photos) seemed likely to be in a break between clouds. Moving every few minutes from place to place on the autobahn to stay in a clear area, the Manifold team used the atomic-clock accuracy of GPS coupled with moving-map Manifold location to find a clear spot at the exact time of totality. A fabulously clear break showed the eclipse in full, cosmic glory. Within minutes, as everyone babbled over what they had just witnessed, the clouds closed in and the rain began. The team drove to Venice over the Brenner pass and the next day shot the splash screen photograph.


In the splash screen the island has been set in a landscape created with RasterLab, the Manifold internal raster algorithm development tool used to verify terrain window algorithms for Manifold System. RasterLab allowed development and verification of raster techniques while Release 5.00 was being created. The splash screen image was composed using over 40 layers, as seen in the Layers topic.


Historical Notes


A few notes of historical interest, mainly thumbnail biographies, have been scattered throughout the documentation in the following topics.


George Boole


Christopher Columbus

Projections Tutorial

Charles-Eugene Delaunay

Transform - Triangulation

Boris Nikolaevich Delone

Transform - Triangulation

J.P.G. Lejeune Dirichlet

Transform - Voronoi Operators

Leonhard Euler

About Networks

Johan Heinrich Lambert

Lambert Azimuthal Equal Area

Pierre Simon Laplace

Transform - Laplace

Gerardus Mercator


Gaspar de Portola

Example: Storing an Image in SQL Server 2008

John Parr Snyder

Space Oblique Mercator

Georgi. F. Voronoi

Transform - Voronoi Operators