Glossary - Revision history

Ngraham: /* Projection */

2010-05-18T19:43:24Z

Projection

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Contours or Contour Lines

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Hachures

2010-05-18T19:41:30Z

Contours or Contour Lines

2010-05-18T19:40:22Z

Hachures

2010-05-18T19:31:31Z

Contours or Contour Lines

2010-05-18T19:13:37Z

Hachures

2010-05-18T19:12:12Z

Hachures

2010-05-18T19:09:56Z

Hachures

2009-01-29T21:44:47Z

@@ Line 36: / Line 36: @@
 :A pole is a unit of measurement, equivalent to 5.5 yards / 16.5 feet. Also called a "rod" or a "perch." A pole is one-quarter of the distance of a "chain."
-==='''Projection'''===
 ==='''Q.M.'''===

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 | [[Image:Contours_MC_041_1929d.jpg|thumb|Detail from "Soil map, North Carolina, Gates County sheet," 1929. NC Archives call number MC.041.1929d.]]
 |}
 ==='''do.'''===

@@ Line 27: / Line 27: @@
 ==='''Hachures'''===
-:Hachures, defined as "short lines following the direction of maximum slope" (AACR2 Cartographic Materials, 2002) are probably the most common method for showing relief on historic maps of North Carolina. Hachures often designate specific mountains or hills, and are effective at showing variations in elevation, but they still do not convey as much information as numbered relief methods, such as contours and spot heights.
+:Hachures, defined as "short lines following the direction of maximum slope" (AACR2 ''Cartographic Materials'', 2002) are probably the most common method for showing relief on historic maps of North Carolina.  Hachures often designate specific mountains or hills, and are effective at showing variations in elevation, but they still do not convey as much information as numbered relief methods, such as contours and spot heights.
 ==='''Longitude West from . . .'''===

@@ Line 8: / Line 8: @@
 ==='''Contours or Contour Lines'''===
-:Contours are lines on a map connecting points of equal elevation. The lines can be curved or straight. Topographic maps usually include contours. "The contour interval of a contour map is the difference in elevation between successive contour lines." (Source: [http://en.wikipedia.org/wiki/Contour_line http://en.wikipedia.org/wiki/Contour_line])
+:Contour lines designate changes in elevation.  Elevation numbers are given at intervals, with the lines appearing concentrically in order to show the changes in elevation in a given area.  Contours are not limited to the mountainous western parts of the state, and are often used to show elevation in low-lying areas in the east.
 ==='''do.'''===

@@ Line 19: / Line 19: @@
 ==='''Hachures'''===
-:Hachures are short lines used for denoting terrain or relief on maps. Lines are drawn in the direction of the slope. The thickness and number of lines provide a general sense of the steepness of a slope.
+:Hachures, defined as "short lines following the direction of maximum slope" (AACR2 Cartographic Materials, 2002) are probably the most common method for showing relief on historic maps of North Carolina. Hachures often designate specific mountains or hills, and are effective at showing variations in elevation, but they still do not convey as much information as numbered relief methods, such as contours and spot heights.
-:"Steeper slopes are represented by thicker, shorter and closer strokes, while gentler slopes are represented by thinner, longer and farther apart strokes. A very gentle slope or a flat area, like the top of a hill, are usually left blank. The hachures are traditionally monocolour, usually black, grey or brown." (Source: [http://en.wikipedia.org/wiki/Hachure_map http://en.wikipedia.org/wiki/Hachure_map])
 ==='''Longitude West from . . .'''===

← Older revision		Revision as of 19:31, 18 May 2010
Line 8:		Line 8:

	==='''Contours or Contour Lines'''===		==='''Contours or Contour Lines'''===
		+	:Contours are lines on a map connecting points of equal elevation. The lines can be curved or straight. Topographic maps usually include contours. "The contour interval of a contour map is the difference in elevation between successive contour lines." (Source: [http://en.wikipedia.org/wiki/Contour_line http://en.wikipedia.org/wiki/Contour_line])

	==='''do.'''===		==='''do.'''===

@@ Line 18: / Line 18: @@
 ==='''Hachures'''===
-Hachures are short lines used for denoting terrain or relief on maps. Lines are drawn in the direction of the slope. The thickness and number of lines provide a general sense of the steepness of a slope. "Steeper slopes are represented by thicker, shorter and closer strokes, while gentler slopes are represented by thinner, longer and farther apart strokes. A very gentle slope or a flat area, like the top of a hill, is usually left blank. The hachures are traditionally monocolour, usually black, grey or brown." (Source: [http://en.wikipedia.org/wiki/Hachure_map http://en.wikipedia.org/wiki/Hachure_map])
+:Hachures are short lines used for denoting terrain or relief on maps. Lines are drawn in the direction of the slope. The thickness and number of lines provide a general sense of the steepness of a slope. "Steeper slopes are represented by thicker, shorter and closer strokes, while gentler slopes are represented by thinner, longer and farther apart strokes. A very gentle slope or a flat area, like the top of a hill, is usually left blank. The hachures are traditionally monocolour, usually black, grey or brown." (Source: [http://en.wikipedia.org/wiki/Hachure_map http://en.wikipedia.org/wiki/Hachure_map])
 ==='''Longitude West from . . .'''===

← Older revision		Revision as of 19:09, 18 May 2010
Line 18:		Line 18:

	==='''Hachures'''===		==='''Hachures'''===
		+	Hachures are short lines used for denoting terrain or relief on maps. Lines are drawn in the direction of the slope. The thickness and number of lines provide a general sense of the steepness of a slope. "Steeper slopes are represented by thicker, shorter and closer strokes, while gentler slopes are represented by thinner, longer and farther apart strokes. A very gentle slope or a flat area, like the top of a hill, is usually left blank. The hachures are traditionally monocolour, usually black, grey or brown." (Source: [http://en.wikipedia.org/wiki/Hachure_map http://en.wikipedia.org/wiki/Hachure_map])

	==='''Longitude West from . . .'''===		==='''Longitude West from . . .'''===