what is the difference between ground and grid coordinates?
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Your surveyor is asking if you want in ground or grid, because ground is what is used in the (real world) if you were in the field measure with a tape . Grid is a measurement from a projection which will have different scale factors applied to your measurements, depending on where you are with in the projection.
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There are two main types of grid reference: four-figure grid reference, such as '19 45', indicates a 1 km by 1 km square on the map; and. six-figure grid reference, such as '192 454', indicates a 100 m by 100 m square on the map.
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Ground refers to the physical ground or earth. Neutral refers to the star point of a STAR connected load. This does not apply to DELTA connected loads. Kirchhoff's current law says that in any three phase STAR connected system any imbalance in current or voltage is carried by/in the neutral.
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If you were standing at the origin of the unit cell, you could travel q · a in the x-direction, r · v in the y-direction, and s · c in the z-direction to get to point P. Thus we would say that point P corresponds to the qrs point coordinates. To find q, r, and s when you are shown a drawing with a point: 1.
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Global coordinate system - corresponds to the entire body and is used to define nodes in the entire body. Local coordinate system - corresponds to a particular element in the body , and the numbering is done to that particular element neglecting the entire body .
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For power-supplies sometimes one of the supply rails will be referred to as ground (abbreviated "GND") - positive and negative voltages are relative to the ground. In digital electronics, negative voltages are seldom present, and the ground nearly always is the most negative voltage level.
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This method differs from the nodal method by using mesh currents instead of nodal voltages as circuit variables. ... Nodal method uses Kirchhoff's currents Law to consider nodal voltages, and Mesh method uses Kirchhoff's voltages Law to consider mesh currents. Mesh is a loop, which does not contain any other loops.
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The vector model uses points and line segments to identify locations on the earth while the raster model uses a series of cells to represent locations on the earth. The figure represents vector (left) versus raster (right) data. One of the most common types of raster data is land cover derived from satellite imagery.
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As nouns the difference between grid and graticule is that grid is a rectangular array of squares or rectangles of equal size, such as in a crossword puzzle while graticule is a grid of horizontal and vertical lines.
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Grid north. Grid north (GN) is a navigational term referring to the direction northwards along the grid lines of a map projection. It is contrasted with true north (the direction of the North Pole) and magnetic north (the direction in which a compass needle points). ... Grid north solves this problem.
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Horizontal lines go left and right and are in the form of y = b where b represents the y intercept. Vertical lines go up and down and are in the form of x = a where a represents the shared x coordinate of all points.
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Coordinates. All graphs have an x and y axis. Coordinates, written as an ordered pair of numbers, are used to give positions on a graph. The x-axis is horizontal (across), while the y-axis is vertical (up-down).
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A grid bearing is measured using the direction northwards along the grid lines of the map projection as a reference point. A magnetic bearing is measured in relation to magnetic north, using the direction toward the magnetic north pole (in northeastern Canada) as a reference point.
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Coordinate system The z-axis indicates the player's distance south (positive) or north (negative) of the origin point—i.e., the latitude, The y-axis indicates how high or low (from 0 to 255, with 64 being sea level) the player is—i.e., the elevation, The unit length of the three axes equal the side of one block.
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As nouns the difference between grid and table. is that grid is a rectangular array of squares or rectangles of equal size, such as in a crossword puzzle while table is an item of furniture with a flat top surface raised above the ground, usually on one or more legs.
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A 2D coordinate system is used to specify all locations in 2D space. A 3D coordinate system is used to specify all locations in 3D space. Cartesian (rectangular) coordinate systems.
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Grid is a collections of geographical dispersed generation units and load centres which are connected by power lines. Whereas Substation is a part of grid, to step up voltages at generation stations for transmission and step down voltages at load centres for distribution.