## map projections

##### DM-53 - Map projection properties • Describe the visual appearance of the Earth’s graticule
• Discuss what a Tissot indicatrix represents and how it can be used to assess projection-induced error
• Interpret a given a projected graticule, continent outlines, and indicatrixes at each graticule intersection in terms of geometric properties preserved and distorted
• Illustrate distortion patterns associated with a given projection class
• Recognize distortion patterns on a map based upon the graticule arrangement
• Explain the kind of distortion that occurs when raster data are projected
• Explain the rationale for the selection of the geometric property that is preserved in map projections used as the basis of the UTM and SPC systems
• Recommend the map projection property that would be useful for various mapping applications, including parcel mapping, route mapping, etc., and justify your recommendations
• Define the four geometric properties of the globe that may be preserved or lost in projected coordinates
• Explain the concept of a “compromise” projection and for which purposes it is useful
##### DM-55 - Map projection parameters • Explain how the concepts of the tangent and secant cases relate to the idea of a standard line
• Implement a given map projection formula in a software program that reads geographic coordinates as input and produces projected (x, y) coordinates as output
• Identify the parameters that allow one to focus a projection on an area of interest
• Use GIS software to produce a graticule that matches a target graticule
• Identify the possible “aspects” of a projection and describe the graticule’s appearance in each aspect
• Define key terms such as “standard line,” “projection case,” and “latitude and longitude of origin”
##### DM-54 - Map projection classes • Explain the concepts “developable surface” and “reference globe” as ways of projecting the Earth’s surface
• Explain the mathematical basis by which latitude and longitude locations are projected into x and y coordinate space
• Illustrate the graticule configurations for “other” projection classes, such as polyconic, pseudocylindrical, etc.
• Classify various map projection types according to the geometric properties preserved
• Classify various map projection types by the three main classes of map projections based on developable surfaces
##### DM-55 - Map projection parameters • Explain how the concepts of the tangent and secant cases relate to the idea of a standard line
• Implement a given map projection formula in a software program that reads geographic coordinates as input and produces projected (x, y) coordinates as output
• Identify the parameters that allow one to focus a projection on an area of interest
• Use GIS software to produce a graticule that matches a target graticule
• Identify the possible “aspects” of a projection and describe the graticule’s appearance in each aspect
• Define key terms such as “standard line,” “projection case,” and “latitude and longitude of origin”
##### DM-54 - Map projection classes • Explain the concepts “developable surface” and “reference globe” as ways of projecting the Earth’s surface
• Explain the mathematical basis by which latitude and longitude locations are projected into x and y coordinate space
• Illustrate the graticule configurations for “other” projection classes, such as polyconic, pseudocylindrical, etc.
• Classify various map projection types according to the geometric properties preserved
• Classify various map projection types by the three main classes of map projections based on developable surfaces
##### DM-53 - Map projection properties • Describe the visual appearance of the Earth’s graticule
• Discuss what a Tissot indicatrix represents and how it can be used to assess projection-induced error
• Interpret a given a projected graticule, continent outlines, and indicatrixes at each graticule intersection in terms of geometric properties preserved and distorted
• Illustrate distortion patterns associated with a given projection class
• Recognize distortion patterns on a map based upon the graticule arrangement
• Explain the kind of distortion that occurs when raster data are projected
• Explain the rationale for the selection of the geometric property that is preserved in map projections used as the basis of the UTM and SPC systems
• Recommend the map projection property that would be useful for various mapping applications, including parcel mapping, route mapping, etc., and justify your recommendations
• Define the four geometric properties of the globe that may be preserved or lost in projected coordinates
• Explain the concept of a “compromise” projection and for which purposes it is useful
##### DM-53 - Map projection properties • Describe the visual appearance of the Earth’s graticule
• Discuss what a Tissot indicatrix represents and how it can be used to assess projection-induced error
• Interpret a given a projected graticule, continent outlines, and indicatrixes at each graticule intersection in terms of geometric properties preserved and distorted
• Illustrate distortion patterns associated with a given projection class
• Recognize distortion patterns on a map based upon the graticule arrangement
• Explain the kind of distortion that occurs when raster data are projected
• Explain the rationale for the selection of the geometric property that is preserved in map projections used as the basis of the UTM and SPC systems
• Recommend the map projection property that would be useful for various mapping applications, including parcel mapping, route mapping, etc., and justify your recommendations
• Define the four geometric properties of the globe that may be preserved or lost in projected coordinates
• Explain the concept of a “compromise” projection and for which purposes it is useful
##### DM-55 - Map projection parameters • Explain how the concepts of the tangent and secant cases relate to the idea of a standard line
• Implement a given map projection formula in a software program that reads geographic coordinates as input and produces projected (x, y) coordinates as output
• Identify the parameters that allow one to focus a projection on an area of interest
• Use GIS software to produce a graticule that matches a target graticule
• Identify the possible “aspects” of a projection and describe the graticule’s appearance in each aspect
• Define key terms such as “standard line,” “projection case,” and “latitude and longitude of origin”
##### DM-54 - Map projection classes • Explain the concepts “developable surface” and “reference globe” as ways of projecting the Earth’s surface
• Explain the mathematical basis by which latitude and longitude locations are projected into x and y coordinate space
• Illustrate the graticule configurations for “other” projection classes, such as polyconic, pseudocylindrical, etc.
• Classify various map projection types according to the geometric properties preserved
• Classify various map projection types by the three main classes of map projections based on developable surfaces
##### DM-55 - Map projection parameters • Explain how the concepts of the tangent and secant cases relate to the idea of a standard line
• Implement a given map projection formula in a software program that reads geographic coordinates as input and produces projected (x, y) coordinates as output
• Identify the parameters that allow one to focus a projection on an area of interest
• Use GIS software to produce a graticule that matches a target graticule
• Identify the possible “aspects” of a projection and describe the graticule’s appearance in each aspect
• Define key terms such as “standard line,” “projection case,” and “latitude and longitude of origin”