
	Where results make sense

Topic: Horizontal coordinate system

Related Topics

solar system

ONS coding system

Binary numeral system

immune system

Nintendo Entertainment System

nervous system

X Window System

numeral system

embedded systems

central nervous system

file system

In the News (Sat 22 Nov 08)

Norm Coleman

Benji Madden

Freddie Mac

Puerto Rico

Vladimir Putin

Treasury Department

Mitt Romney

Giovanni Trapattoni

Steve Ballmer

James Bond

	Coordinate system Summary
		The three-dimensional coordinate system is an extension of the twodimensional coordinate system invented in 1637 by French mathematician René Descartes (1596–1650).
		However, in a two-dimensional coordinate system, it is impossible to describe the location of an object that is off the plane of the floor, such as the location of a crystal on a chandelier that is hanging from the ceiling.
		In a three-dimensional coordinate system, it is possible to refer to the location of a chandelier crystal with reference to the two walls of the room and also the floor.
	www.bookrags.com /Coordinate_system (2007 words)

	ComputaMaps - Technology glossary (Site not responding. Last check: 2007-10-12)
		The horizontal datum, used as a reference for position, is defined by the latitude and longitude of an initial point, the direction of a line between this point and a specified second point, and two dimensions which define the spheroid.
		The coordinate system for describing the position of points on the Earth, in which ground points are represented in latitude and longitude.
		A local coordinate system formed by flattening the surface of the Earth using a map projection such as Transverse Mercator (for areas with long N-S extents), Lambert Conformal (for areas with long E-W extents) or Stereographic (for squarish areas) and establishing a rectangular grid coordinate system on the flattened projection.
	www.computamaps.com /tech_glossary.php (3349 words)

	[No title]
		A geographic coordinate system has two axes, latitude and longitude, which are only unambiguous when both of the related prime meridian and geodetic datum are given, and in turn the geodetic datum definition includes the definition of an ellipsoid.
		A geocentric coordinate system is a 3-dimensional coordinate system with its origin at or near the center of the earth and with 3 orthogonal axes.
		The X-axis is in or parallel to the plane of the equator and passes through its intersection with the Greenwich meridian, and the Y-axis is in the plane of the equator forming a right-handed coordinate system with the X and Z axes.
	www.remotesensing.org /geotiff/spec/geotiff2.5.html (2911 words)

	Coordinate Systems
		The horizontal coordinate system (commonly referred to as the alt-az system) is the simplest coordinate system as it is based on the observer's horizon.
		A more convenient coordinate system for cataloguing purposes is one based on the celestial equator and the celestial poles and defined in a similar manner to latitude and longitude on the surface of the Earth.
		In this system, known as the equatorial coordinate system, the analogue of latitude is the declination.
	mysite.verizon.net /tajames1000/astronomy/notes-coordinates.html (631 words)

	NOOBEED - Understanding Coordinate System
		By observing position of those fiducial marks in a matrix index system, rows and columns, and the given coordinates of them together with the values of xp and yp, we are able to calculate a set of parameters, which allowed us to transform back and forth between photo coordinates system and matrix index system.
		Hence y coordinates at the center of pixels are always zero, and X coordinates is at the center of the array, however shift by the principal point coordinate, if exist.
		This system is made by shifting the x origin of the image system to the center of the array, and convert the y coordinate to time.
	noobeed.com /nb_coord_system.htm (1317 words)

	Cartesian coordinate system Summary
		In mathematics, the Cartesian coordinate system is used to uniquely determine each point in the plane through two numbers, usually called the x-coordinate and the y-coordinate of the point.
		Using the Cartesian coordinate system geometric shapes (such as curves) can be described by algebraic equations, namely equations satisfied by the coordinates of the points lying on the shape.
		In analytic geometry the Cartesian coordinate system is the foundation for the algebraic manipulation of geometrical shapes.
	www.bookrags.com /Cartesian_coordinate_system (3956 words)

	Coordinate Systems (Site not responding. Last check: 2007-10-12)
		A coordinate of -90 degrees declination indicates that the point is on the south celestial pole while +90 degrees indicates that it is on the north celestial pole.
		The horizon (sometimes called horizontal) coordinate system is easier to visualize than the equatorial coordinate system, but harder to work with because positions are measured in relation to the zenith which is always changing position.
		The coordinates in the horizon coordinate system are the altitude and azimuth of a point.
	students.ee.sun.ac.za /~riaanvdd/coordinate_systems.htm (3071 words)

	Horizontal coordinate system - Wikipedia, the free encyclopedia
		The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane.
		Horizontal coordinates are very useful for determining the rise and set times of an object in the sky.
		It is possible to pass from the equatorial coordinate system to the horizontal coordinate system and back, once the observer's geographic latitude φ is known (+90° on the northpole, 0° on the equator, -90° on the southpole).
	en.wikipedia.org /wiki/Horizontal_coordinate_system (1152 words)

	COMET Help
		A horizontal coordinate system definition is the reference frame or system from which linear or angular quantities are measured and assigned to the position that a point occupies.
		A horizontal positional accuracy report is an explanation of the accuracy of the horizontal coordinate measurements and a description of the tests used.
		The choices are map projection, grid coordinate system, or local planar, which is a planar coordinate system for which the relationship between the planar coordinates and geographic (latitude and longitude) coordinates is not known.
	www.chesapeakebay.net /comet/Help.cfm?CometTerm=all (2902 words)

	Projections and Coordinate Systems
		The geographic system (latitude-longitude), which is based on angles measured on a sphere, is not valid for measurements on a plane.
		Therefore, a Cartesian coordinate system is used, where the origin (0, 0) is toward the lower left of the planar section.
		Within each zone, a local coordinate system is defined, in which the X-origin is located 500,000 m west of the central meridian, and the Y-origin is the south pole or the equator, depending on the hemisphere.
	gis.washington.edu /esrm250/lessons/projection (3039 words)

	FGDCgroups (Site not responding. Last check: 2007-10-12)
		A plane-rectangular coordinate system usually based on, and mathematically adjusted to, a map projection so that geographic positions can be readily transformed to and from plane coordinates.
		The reference frame or system from which linear or angular quantities are measured and assigned to the position that a point occupies.
		Any right-handed planar coordinate system of which the z-axis coincides with a plumb line through the origin that locally is aligned with the surface of the Earth.
	cgia.cgia.state.nc.us /tutorials/ncmeta/FGDCgroups.html (1589 words)

	342 Geospatial Reference Data [OCLC - 3xx Introduction] (Site not responding. Last check: 2007-10-12)
		Local. Any coordinate system that is not aligned with the surface of the Earth.
		Include the name of the grid system, the names of the parameters and values used for the data set, and the citation of the specification for the algorithms that describe the mathematical relationship between the Earth and the coordinates of the grid system.
		Description of a local planar system (any right-handed planar coordinate system of which the z-axis coincides with a plumb line through the origin that is aligned locally with the surface of the Earth).
	www.oclc.org /bibformats/en/3xx/342.shtm (1379 words)

	CIESIN's Guide to FGDC Compliant Metadata
		Definition: A plane-rectangular coordinate system usually based on, and mathematically adjusted to, a map projection so that geographic positions can be readily transformed to and from plane coordinates.
		The information provided shall include the name of the grid system, the names of the parameters and values used for the dataset, and the citation of the specification for the algorithms that describe the mathematical relationship between the Earth and the coordinates of the grid system.
		Definition: Any right-handed planar coordinate system of which the z-axis coincides with a plumb line through the origin that locally is aligned with the surface of the Earth.
	sedac.ciesin.org /metadata/guide/spatref.html (2007 words)

	CompBase Functions
		Converts a pixel coordinate into the corresponding user coordinate using the default horizontal coordinate system of a widget whose class is derived from the CompBase widget class.
		This function converts a pixel coordinate into the corresponding user coordinate in the default vertical coordinate system of a widget whose class is derived from the XintCompBase widget class.
		This function converts a user coordinate into the corresponding pixel coordinate using the default vertical coordinate system of a widget whose class is derived from the XintCompBase widget class.
	www.ics.com /support/docs/epak/3.0/editt_66.htm (1345 words)

	Equilibrium Free-Body Model Controls
		The vertical (y) extent of the coordinates system is set by values entered in the limit boxes in the left margin.
		The model view shown is of an object representing a rigid beam that may stand in for a ladder leaned against a wall, a balanced beam supported in the middle or drawbridge supported at one end with an angled cable holding the other end up.
		If coordinates are already entered, they may be converted to the other type by changing this choice.
	www.mcasco.com /semhelp.html (1030 words)

	spatial reference
		Horizontal Coordinate System Definition describes the reference frame or system from which linear or angular quantities are measured and assigned to the position that a point occupies.
		Codes for the State Plane Coordinate Systems based on the North American Datum of 1983 are found in: U.S. Department of Commerce.
		The information provided shall include the name of the grid system, the names of the parameters and values used for the data set, and the citation of the specification for the algorithms that describe the mathematical relationship between the Earth and the coordinates of the grid system.
	www.ciesin.org /metadata/documentation/guidelines/spatref.html (1889 words)

	Interoperable Coordinate Transformation and Identification of Coordinate Systems
		A Horizontal Coordinate System is a 2-D coordinate system that may be Projected (a cartographic projection) or Geographic (latitude and longitude).
		A Vertical Coordinate System is a vertical 1-D coordinate system (e.g., vertical with respect to a geoid or ellipsoid).
		The authority is whoever assigned the string to the coordinate system.
	www.ncgia.ucsb.edu /globalgrids-book/specht (1937 words)

	GEOG 483 Project 2: Summarizing and Displaying Property Damage from Tornadoes
		The geographic coordinate system measures locations in angles that range from +180 to -180 in longitude (x coordinate) and +90 to -90 in latitude (y coordinate).
		The horizontal coordinate system displays the NAD83 datum for the Counties shapefile.
		The horizontal coordinate system for Counties under the Metadata and Spatial tabs shows that the Counties shapefile uses the NAD83 datum.
	www.personal.psu.edu /students/a/e/aeo130/483Proj02.html (986 words)

	Metadata Section 4 - Spatial Reference Information
		The datum used in the horizontal coordinate system.
		The county coordinate zone identifier number from The Minnesota County Coordinate System, A User's Handbook by Ken Whitehorn, Itasca Co. Surveyor, published by Precision Measuring Systems, 1998.
		Explain the reference frame or system from which linear or angular quantities are measured and assigned to the position that a point occupies.
	www.gis.state.mn.us /stds/sparef.htm (407 words)

	Earth Coordinate System
		The main disadvantage of the alt-az system is that it is a local coordinate system - i.e.
		A more convenient coordinate system for cataloging purposes is one based on the celestial equator and the celestial poles and defined in a similar manner to latitude and longitude on the surface of the Earth.
		In this system, known as the equatorial coordinate system, the analog of latitude is the declination,
	zebu.uoregon.edu /~js/ast121/lectures/lec03.html (2904 words)

	GIS Services
		— The process of developing a network of horizontal and vertical position from a group of known positions using measurements taken from aerial photographs and mathematical computations.
		coordinate system — A system to measure horizontal and vertical distances so that a geographic feature true position can be established in relation to an accepted public reference system such as State Plane or Universal Transverse Mercator (UTM) coordinate systems.
		When identifiable on both the ground and an aerial photograph, ground control can be used to establish the true position of the aerial photograph.
	gis.state.tn.us /a_h.html (282 words)

	Metadata important
		Several issues are involved in choosing a map projection and coordinate system, including where on the globe the area you are mapping is located, how large the area is, and whether you need precise measurements of distance or areal extent.
		Latitude and longitude is a coordinate system (often called the "geographic" coordinate system).
		We have already defined the projection and coordinate reference system for the base map; all you have to do is import the projection parameters from the base map.
	doc.union.edu /Spain/Seminar8.html (1589 words)

	Mapping of DLG-E into SDTS:Section 5
		The coordinates must be in the internal system or external system.
		The DLG-E coordinate values are actual external coordinate values, but with the decimal point moved so as to treat them as integers.
		To convert the DLG-E coordinates to external coordinates, divide by the HCIF Factor.
	mcmcweb.er.usgs.gov /sdts/emapoct_93/section5.html (1245 words)

	Glossary of GPS Terminology (Site not responding. Last check: 2007-10-12)
		The concept is generally expanded to include the published coordinates of control stations within the system.
		Published in 1991 the orthometric heights are derived from an adjustment of leveling data constrained at a single point on the St. Lawrence Seaway.
		ECEF coordinates - Cartesian coordinates, Earth Centered Earth Fixed Rectangular coordinate system where the positive X axis lies on the equatorial plane passing through the prime meridian (Greenwich), the positive Y axis lies on the equatorial plane at 90 east, and positive Z passes north through the mean rotational axis of the earth.
	www.rbf.com /cgcc/glossary.htm (2557 words)

	Coordinate Systems Overview
		This overview of coordinate systems for georeferencing provides a brief description of local and global systems for use in precise positioning, navigation, and geographic information systems for the location of points in space.
		The system is based on units of the square-root of one-tenth of a mile.
		Once the coordinates of switching sites are known, distances between sites can be simply found by calculating the square root of the sum of the squares of the differences in the vertical and horizontal coordinates divided by ten.
	www.colorado.edu /geography/gcraft/notes/coordsys/coordsys.html (2649 words)

	Working Level Subset: - includes Basic Subset plus the following shaded elements
		An explanation of the accuracy of the horizontal coordinate measurements and a description of the tests used.
		An explanation of the accuracy of the vertical coordinate measurements and a description of the tests used.
		The denominator of the ratio of the difference between the equatorial and polar radii of the ellipsoid when numerator is set to 1.
	wagic.wa.gov /techstds2/wl_subsetv1.htm (961 words)

	[CF-metadata] Horizontal Data Coordinate System Definition [l ong] (fwd)
		For the horizontal, the choices are "Geographic", "Planar" or "Local" coordinate systems.
		For both of these coordinate systems, the "Geodetic_Model" specification is required (since it is applicable).
		If we allowed EPSG codes to be used as "grid_mapping_name", then we take the burden of handling all the thousands of coordinate reference systems from CF to the EPSG database, which seems to be the bible anyway.
	www.cgd.ucar.edu /pipermail/cf-metadata/2005/000562.html (1035 words)

Try your search on: Qwika (all wikis)