Vectorization Trace tool
[ESRI software] An ArcScan tool that allows users to manually trace raster cells and generate features to be converted from raster to vector data.
Trace Out command
Bentley Electric has an intelligent network model that supports a variety of tracing operations. This image depicts the "Trace Out" command for primary and secondary" ...
trace fossil -- Evidence left by organisms, such as burrows, imprints, coprolites, or footprints. Trace fossils are not preserved parts of the organism.
transgression -- (n) A rise in sea level relative to the land.
trace: create a new feature that traces existing features from the same or another layer
Adding attributes ...
Traces a flow through an elevation model on a raster map layer.
r.fill.dir
Filters and generates a depressionless elevation map and a flow direction map from a given elevation layer ...
Traces of ancient strand (beach) lines owing primarily to sealevel changes, but also often influenced by tectonic or isostatic adjustments, are found throughout the world.
Tracey Morton
Department of Geographical Sciences
Vista University
Pvt Bag X9, Bertsham, 2103
Soweto, South Africa
27 11 938-1305 (fax)
E-mail: MRTON-T@sorex.vista.ac.za ...
The traceability of products is indispensable for achieving a sustainable society through the 3R principle: reduce, reuse, recycle.
The trace of a square matrix is the sum of its diagonal entries, which equals the sum of its n eigenvalues.
Matrix exponential is defined for square matrices, using power series.
[edit] Special types of matrices ...
Other traces of Babylonian practice in Hipparchus work are:
first Greek known to divide the circle in 360 degrees of 60 arc minutes.
first consistent use of the sexagesimal number system.
You can trace color images, grayscale, or black and white images.
Contour Line Editing and Labeling ...
network trace
A function that performs network analysis on a geometric network. Specific kinds of network tracing include finding features that are connected, finding common ancestors, finding loops, tracing upstream, and tracing downstream.
What pattern is traced out on the celestial sphere when you move a flashlight around on the surface of a cube, keeping its tail as flat as possible on the surface? What is the celestial pattern for a dodecahedron?
Map errors can be traced to many different sources. Some common errors are due to problems with the following: source data, poor conceptual representation of reality, data processing, data output, data conversion and data encoding.
Maps can be digitized, or hand-traced with at computer mouse, to collect the coordinates of features. [LINK] Electronic scanning devices will also convert map lines and points to digits.
Hierarchical This type of data storage refers to data linked together in a tree-like fashion, similar to the conceot of family lines, where data relations can be traced through particular arms of the hierarchy.
cadastral survey The means by which private and public land is defined, divided, traced, and recorded.
The contour lines trace points of equal elevation across the map. See also: contour line and contour map.
Topography:
The shape of Earth's surface or the geometry of landforms in a geographic area.
Trace Element: ...
Information is traced from a major group, to a subgroup, and to further subgroups. Much like tracing a family tree, data can be traced through parents along paths through the hierarchy.
Also recall that the 'steepest downhill path' along a surface traces the shortest (i.e., optimal) line to the bottom. It's like a raindrop running down a roof-- the shape of the roof dictates the optimal path.
The basis of heads-up digitising is to use the mouse pointer to trace around the image to be digitised, recording the coordinates as it moves - in much the same manner as moving the puck on a digitising table or tablet.
POV-Ray, a ray-tracer for solid modeling
Data for heavenly maps available in coordinate form at the Flight Gear open-source flight simulator project, extracted from the xephem program ...
History is maintained—Parcel records can be traced back in time from stored date information. No historical data is lost, allowing you to see the state of affairs for a given parcel over time.
The work of site representation can be done with scaling xerox machine, exacto-knives, rubber cement and chipboard and trace paper.
A digitizer produces vector data as an operator traces points, lines, and polygon boundaries from a map. Scanning a map results in raster data that could be further processed to produce vector data.
Cohort analysis traces those persons born during the same time period as they age and live through common time-specific experiences and life stages [such as retirement, i.e. belonging to specific age groups at any one point in time].
A digitizing workstation with a digitizing tablet and cursor is typically used to trace digitize. Both the tablet and cursor are connected to a computer that controls their functions.
The images shown on this page were prepared the "old-fashioned" way, using the ray tracer . This is actually not a GIS application at all but is a general purpose 3-D rendering tool. It is available for free download.
For example, the GIS (or CAD) operator will trace the boundary of each state with a digitizing tablet or mouse. Boundaries common to pairs of states will therefore be traced twice.
Method of converting information from one format to another using a trace methology. Traditionally, digitizing has meant the creation of a spatial dataset from a hardcopy source such as a paper map or a plan.
NOAA's geostationary weather satellites trace their roots to NASA's Applications Technology Satellite (ATS), launched in December 1966, while the first GOES was launched on Oct. 16, 1975.
Lines are traced to define their shapes. This can be accomplished either manually or by use of a scanner. To encode map features as x,y coordinates in digital form. Lines are traced to define their shapes.
As the back reference content evolved, traceability became a factor when selecting the appropriate back reference to reflect the map face symbolization for reprinted maps.
The accompanying illustration (fig. 22) depicts the blockage of the road network that would result from an earthquake, assuming that any road crossing the fault trace would become impassable.
The ability to find a path or "trace" through a network from a source to a given point. For example, connectivity is necessary to find the path along a network of streets to find the shortest or best route from a fire station to a fire.
2.
To employ a digitizing tablet to record x,y or x,y,z values for map features. Lines are traced to define their shape. A digitizer button, pressed periodically along the line, records x,y coordinates.
In fact, the use of a topological data structure can be traced back to the need for overlaying vector data layers.
A trained operator securely mounts the source map upon the digitizing tablet and, utilizing the cross hairs on the digitizing puck, traces the cross hair axis along each linear feature to be captured in the digital file.
digitize: To encode map features as x,y coordinates in digital form. Lines are traced to define their shapes. This can be accomplished either manually or by use of a scanner.
Heads-up digitizing: This is similar to the manual digitization, but the raster scanned data is imported and laid below the vector data to be traced on the computer screen itself.
Iraq: Follow the Instructions
Color Iraq according to simple directions, such as, "Trace the paths of the Tigris and Euphrates Rivers in deep blue." Or go to the answers.
Si les axes sont subdivisés pour déterminer l'échelle (une subdivision égalant un mètre par exemple), on peut ensuite tracer les points qui nous intéressent d'après la paire de coordonnées qui les caractérisent.
Digitizing - Paper maps can be used to create a digital map, for example, by using a digitizing mouse to trace the paper map. Lines can also be added to an existing digital map.
Humans have long recognised the importance and value of maps to their lives. Indeed, the history of mapping can be traced to more than 5,000 years ago. Maps are essentially tools which are used to: ...
If the data to be used are not already in digital form (that is, in a form the computer can recognize), various techniques can capture the information. Maps can be digitized, or hand traced with a computer mouse, ...
In a water distribution system, connectivity would refer to the way pipes, valves, and reservoirs are attached, implying that water could be traced from its source in the network, from connection to connection, to any given final point.
If the data to be used are not already in digital form, that is, in a form the computer can recognize, various techniques can capture the information. Maps can be digitized, or hand-traced with a digitizer, to collect the coordinates of features.
scanning and vectorizing A data conversion technology that makes use of special hardware and software to make a bit map picture of a map (scanning) and have the computer trace lines on this bit map picture (vectorizing).
Cursor - A hand-controlled computer hardware device consisting of a graphic pointer or crosshairs and keys, used to point to locations on a computer terminal screen. In digitizing, a cursor is used to trace and capture the location of analog ...
These characteristics include distance, direction, shape, and area. The only place on a map where there is no distortion is along the trace of the line that marks the intersection of our ‘paper' with the surface of the earth.
A mouse is used to make selections and position the cursor to fields in computer forms when interacting with graphical user interfaces. A digitizer mouse is used to trace features and enter x,y coordinates of features.
In this layer, nitrogen, oxygen, argon, carbon dioxide, and the trace gases dominate and remain constant in their relative proportions. The homosphere extends from the Earth's surface to a height of 80 to 100 kilometers depending on latitude.
 See also: Information, Feature, Area, Model, Map
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