Projection Dialogs: Difference between revisions
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{| class="mw-collapsible mw-collapsed" style="border:1px solid #D0E0FF; background-color:transparent; width:700px; margin-top:1em;" | {| class="mw-collapsible mw-collapsed" style="border:1px solid #D0E0FF; background-color:transparent; width:700px; margin-top:1em;" | ||
|- | |- | ||
! | ! List of Projections | ||
|- | |- | ||
| The ''Projection'' drop-down contains the following options. If there is ''Zone'' information for a particular projection, the zones will be listed directly beneath the projection as an indented list. | |||
|- | |- | ||
| | | | ||
*"3TM (Alberta)" | *"3TM (Alberta)" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*111W (112.5W - 109.5W) | *111W (112.5W - 109.5W) | ||
*114W (115.5W - 112.5W) | *114W (115.5W - 112.5W) | ||
*117W (118.5W - 115.5W) | *117W (118.5W - 115.5W) | ||
*120W (121.5W - 118.5W) | *120W (121.5W - 118.5W) | ||
</blockquote> | |||
*"10TM (Alberta)" | *"10TM (Alberta)" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Resource (False Easting 0) | *Resource (False Easting 0) | ||
*Resource (False Easting 500,000) | *Resource (False Easting 500,000) | ||
</blockquote> | |||
*"Aitoff-Wagner" | *"Aitoff-Wagner" | ||
*"Alaska Conformal" | *"Alaska Conformal" | ||
*"[https://en.wikipedia.org/wiki/Albers_projection Albers Conic]" | *"[https://en.wikipedia.org/wiki/Albers_projection Albers Conic]" | ||
*"Austrian Grid" | *"Austrian Grid" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Zone M28 (Western Austria) - Bundesmeldenetz | *Zone M28 (Western Austria) - Bundesmeldenetz | ||
*Zone M31 (Central Austria) - Bundesmeldenetz | *Zone M31 (Central Austria) - Bundesmeldenetz | ||
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*Zone M31 (Central Austria) - Gebrauchskoordinaten | *Zone M31 (Central Austria) - Gebrauchskoordinaten | ||
*Zone M34 (Eastern Austria) - Gebrauchskoordinaten | *Zone M34 (Eastern Austria) - Gebrauchskoordinaten | ||
</blockquote> | |||
*"[https://en.wikipedia.org/wiki/Azimuthal_equidistant_projection Azimuthal Equidistant]" | *"[https://en.wikipedia.org/wiki/Azimuthal_equidistant_projection Azimuthal Equidistant]" | ||
*"Belge 1972 (Belgium Lambert 1972)" | *"Belge 1972 (Belgium Lambert 1972)" | ||
Line 80: | Line 80: | ||
*"[https://en.wikipedia.org/wiki/Ordnance_Survey_National_Grid British Grid]" | *"[https://en.wikipedia.org/wiki/Ordnance_Survey_National_Grid British Grid]" | ||
*"Cassini Malaysia" | *"Cassini Malaysia" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Johor State | *Johor State | ||
*Kedah & Perlis States | *Kedah & Perlis States | ||
Line 91: | Line 91: | ||
*Singapore | *Singapore | ||
*Terengganu State | *Terengganu State | ||
</blockquote> | |||
*"[https://en.wikipedia.org/wiki/Cassini_projection Cassini-Soldner]" | *"[https://en.wikipedia.org/wiki/Cassini_projection Cassini-Soldner]" | ||
*"Croatia (TM)" | *"Croatia (TM)" | ||
Line 102: | Line 102: | ||
*"[https://en.wikipedia.org/wiki/Gall_stereographic_projection Gall Stereographic]" | *"[https://en.wikipedia.org/wiki/Gall_stereographic_projection Gall Stereographic]" | ||
*"[https://en.wikipedia.org/wiki/Gauss%E2%80%93Boaga_projection Gauss Boaga (Italia)]" | *"[https://en.wikipedia.org/wiki/Gauss%E2%80%93Boaga_projection Gauss Boaga (Italia)]" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Fuso Ovest (6E - 12E) | *Fuso Ovest (6E - 12E) | ||
*Fuso Est (12E - 18E) | *Fuso Est (12E - 18E) | ||
</blockquote> | |||
*"Gauss Krueger (6 degree zones)" | *"Gauss Krueger (6 degree zones)" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Zone 1 (0E - 6E) | *Zone 1 (0E - 6E) | ||
*Zone 2 (6E - 12E) | *Zone 2 (6E - 12E) | ||
Line 168: | Line 168: | ||
*Zone 59 (12W - 6W) | *Zone 59 (12W - 6W) | ||
*Zone 60 (6W - 0E) | *Zone 60 (6W - 0E) | ||
</blockquote> | |||
*"Gauss Krueger (Argentina)" | *"Gauss Krueger (Argentina)" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Zone 1 (73.5W - 70.5W) | *Zone 1 (73.5W - 70.5W) | ||
*Zone 2 (70.5W - 67.5W) | *Zone 2 (70.5W - 67.5W) | ||
Line 178: | Line 178: | ||
*Zone 6 (58.5W - 55.5W) | *Zone 6 (58.5W - 55.5W) | ||
*Zone 7 (55.5W - 52.5W) | *Zone 7 (55.5W - 52.5W) | ||
</blockquote> | |||
*"Gauss Krueger (Croatia) - HDKS" | *"Gauss Krueger (Croatia) - HDKS" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Zone 5 (13.5E - 16.5E) | *Zone 5 (13.5E - 16.5E) | ||
*Zone 6 (16.5E - 19.5E) | *Zone 6 (16.5E - 19.5E) | ||
*Zone 7 (19.5E - 22.5E) | *Zone 7 (19.5E - 22.5E) | ||
</blockquote> | |||
*"Gauss Krueger (3 degree zones)" | *"Gauss Krueger (3 degree zones)" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Zone 1 (1.5E - 4.5E) | *Zone 1 (1.5E - 4.5E) | ||
*Zone 2 (4.5E - 7.5E) | *Zone 2 (4.5E - 7.5E) | ||
Line 247: | Line 247: | ||
*Zone 59 (175.5E - 178.5E) | *Zone 59 (175.5E - 178.5E) | ||
*Zone 60 (178.5E - 181.5E) | *Zone 60 (178.5E - 181.5E) | ||
</blockquote> | |||
*"Gauss Krueger Slovenia" | *"Gauss Krueger Slovenia" | ||
*"[https://en.wikipedia.org/wiki/Equirectangular_projection Geographic (Latitude/Longitude)]" | *"[https://en.wikipedia.org/wiki/Equirectangular_projection Geographic (Latitude/Longitude)]" | ||
Line 259: | Line 259: | ||
*"Hungarian National Grid (EOV)" | *"Hungarian National Grid (EOV)" | ||
*"India Zoned Grid" | *"India Zoned Grid" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*India 0 | *India 0 | ||
*India I | *India I | ||
Line 268: | Line 268: | ||
*India IVa | *India IVa | ||
*India IVb | *India IVb | ||
</blockquote> | |||
*"[https://en.wikipedia.org/wiki/Irish_grid_reference_system Irish Grid]" | *"[https://en.wikipedia.org/wiki/Irish_grid_reference_system Irish Grid]" | ||
*"[https://en.wikipedia.org/wiki/Israeli_Transverse_Mercator Israel Grid (New)]" | *"[https://en.wikipedia.org/wiki/Israeli_Transverse_Mercator Israel Grid (New)]" | ||
*"[https://en.wikipedia.org/wiki/Israeli_Cassini_Soldner Israel Grid (Old)]" | *"[https://en.wikipedia.org/wiki/Israeli_Cassini_Soldner Israel Grid (Old)]" | ||
*"Japanese Projection System" | *"Japanese Projection System" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Japanese Plane I | *Japanese Plane I | ||
*Japanese Plane II | *Japanese Plane II | ||
Line 293: | Line 293: | ||
*Japanese Plane XVIII | *Japanese Plane XVIII | ||
*Japanese Plane XIX | *Japanese Plane XIX | ||
</blockquote> | |||
*"Korea TM" | *"Korea TM" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Korea West Belt (124.0E - 126.0E) | *Korea West Belt (124.0E - 126.0E) | ||
*Korea Central Belt (126.0E - 128.0E) | *Korea Central Belt (126.0E - 128.0E) | ||
*Korea East Belt (128.0E - 130.0E) | *Korea East Belt (128.0E - 130.0E) | ||
*Korea East Sea Belt (130.0E - 132.0E) | *Korea East Sea Belt (130.0E - 132.0E) | ||
</blockquote> | |||
*"[https://en.wikipedia.org/wiki/K%C5%99ov%C3%A1k's_projection Krovak]" | *"[https://en.wikipedia.org/wiki/K%C5%99ov%C3%A1k's_projection Krovak]" | ||
*"Laborde (Madagascar)" | *"Laborde (Madagascar)" | ||
Line 316: | Line 316: | ||
*"Lambert IV Carto (Corsica)" | *"Lambert IV Carto (Corsica)" | ||
*"Lambert IV Corse (Corsica)" | *"Lambert IV Corse (Corsica)" | ||
*"Lambert-93" | *"Lambert-93" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Base Lambert93 | *Base Lambert93 | ||
*CC-42 | *CC-42 | ||
Line 329: | Line 328: | ||
*CC-49 | *CC-49 | ||
*CC-50 | *CC-50 | ||
</blockquote> | |||
*"Marta Software Satellite" | *"Marta Software Satellite" | ||
*"[https://en.wikipedia.org/wiki/Mercator_projection Mercator]" | *"[https://en.wikipedia.org/wiki/Mercator_projection Mercator]" | ||
Line 335: | Line 334: | ||
*"Mercator (Navionics Special)" | *"Mercator (Navionics Special)" | ||
*"MGA (Map Grid of Australia)" | *"MGA (Map Grid of Australia)" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*MGA Zone 48 (102.0E - 108.0E) | *MGA Zone 48 (102.0E - 108.0E) | ||
*MGA Zone 49 (108.0E - 114.0E) | *MGA Zone 49 (108.0E - 114.0E) | ||
Line 347: | Line 346: | ||
*MGA Zone 57 (156.0E - 162.0E) | *MGA Zone 57 (156.0E - 162.0E) | ||
*MGA Zone 58 (162.0E - 168.0E) | *MGA Zone 58 (162.0E - 168.0E) | ||
</blockquote> | |||
*"Michigan Georef" | *"Michigan Georef" | ||
*"[https://en.wikipedia.org/wiki/Miller_cylindrical_projection Miller Cylindrical]" | *"[https://en.wikipedia.org/wiki/Miller_cylindrical_projection Miller Cylindrical]" | ||
*"Miller Oblated Stereographic" | *"Miller Oblated Stereographic" | ||
*"Minnesota County" | *"Minnesota County" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Aitkin | *Aitkin | ||
*Anoka | *Anoka | ||
Line 447: | Line 446: | ||
*Wright | *Wright | ||
*Yellow Medicine | *Yellow Medicine | ||
</blockquote> | |||
*"[https://en.wikipedia.org/wiki/Mollweide_projection Mollweide]" | *"[https://en.wikipedia.org/wiki/Mollweide_projection Mollweide]" | ||
*"MSTM (Mississippi Transverse Mercator)" | *"MSTM (Mississippi Transverse Mercator)" | ||
*"MTM (Eastern Canada)" | *"MTM (Eastern Canada)" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Zone 1 (54.5W - 51.5W) | *Zone 1 (54.5W - 51.5W) | ||
*Zone 2 (57.5W - 54.5W) | *Zone 2 (57.5W - 54.5W) | ||
Line 469: | Line 468: | ||
*Zone 16 (94.5W - 91.5W) | *Zone 16 (94.5W - 91.5W) | ||
*Zone 17 (97.5W - 94.5W) | *Zone 17 (97.5W - 94.5W) | ||
</blockquote> | |||
*"[https://en.wikipedia.org/wiki/Natural_Earth_projection Natural Earth]" | *"[https://en.wikipedia.org/wiki/Natural_Earth_projection Natural Earth]" | ||
*"New Brunswick Double Stereographic" | *"New Brunswick Double Stereographic" | ||
*"Norwegian Transverse Mercator (NTM)" | *"Norwegian Transverse Mercator (NTM)" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Zone 5 (5E - 6E) | *Zone 5 (5E - 6E) | ||
*Zone 6 (6E - 7E) | *Zone 6 (6E - 7E) | ||
Line 500: | Line 499: | ||
*Zone 29 (29E - 30E) | *Zone 29 (29E - 30E) | ||
*Zone 30 (30E - 31E) | *Zone 30 (30E - 31E) | ||
</blockquote> | |||
*"[https://en.wikipedia.org/wiki/New_Zealand_Map_grid New Zealand Map Grid]" | *"[https://en.wikipedia.org/wiki/New_Zealand_Map_grid New Zealand Map Grid]" | ||
*"[http://www.linz.govt.nz/data/geodetic-system/datums-projections-and-heights/projections/new-zealand-transverse-mercator-2000 New Zealand Transverse Mercator 2000]" | *"[http://www.linz.govt.nz/data/geodetic-system/datums-projections-and-heights/projections/new-zealand-transverse-mercator-2000 New Zealand Transverse Mercator 2000]" | ||
Line 506: | Line 505: | ||
*"[https://en.wikipedia.org/wiki/Orthographic_projection_in_cartography Orthographic]" | *"[https://en.wikipedia.org/wiki/Orthographic_projection_in_cartography Orthographic]" | ||
*"Philippines Grid" | *"Philippines Grid" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Zone 1 | *Zone 1 | ||
*Zone 2 | *Zone 2 | ||
Line 512: | Line 511: | ||
*Zone 4 | *Zone 4 | ||
*Zone 5 | *Zone 5 | ||
</blockquote> | |||
*"[https://en.wikipedia.org/wiki/Equirectangular_projection Plate Carree (Geographic)]" | *"[https://en.wikipedia.org/wiki/Equirectangular_projection Plate Carree (Geographic)]" | ||
*"Poland 1992/19" | *"Poland 1992/19" | ||
*"Poland 2000" | *"Poland 2000" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Zone 5 (13.5E - 16.5E) | *Zone 5 (13.5E - 16.5E) | ||
*Zone 6 (16.5E - 19.5E) | *Zone 6 (16.5E - 19.5E) | ||
*Zone 7 (19.5E - 22.5E) | *Zone 7 (19.5E - 22.5E) | ||
*Zone 8 (22.5E - 25.5E) | *Zone 8 (22.5E - 25.5E) | ||
</blockquote> | |||
*"Polar Stereographic" | *"Polar Stereographic" | ||
*"[https://en.wikipedia.org/wiki/Polyconic_projection Polyconic]" | *"[https://en.wikipedia.org/wiki/Polyconic_projection Polyconic]" | ||
Line 531: | Line 530: | ||
*"Sinusoidal (Integerized)" | *"Sinusoidal (Integerized)" | ||
*"[https://en.wikipedia.org/wiki/State_Plane_Coordinate_System State Plane Coordinate System]" | *"[https://en.wikipedia.org/wiki/State_Plane_Coordinate_System State Plane Coordinate System]" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Alabama East (FIPS 101) | *Alabama East (FIPS 101) | ||
*Alabama West(FIPS 102) | *Alabama West(FIPS 102) | ||
Line 660: | Line 659: | ||
*Wyoming West (FIPS 4904) | *Wyoming West (FIPS 4904) | ||
*Puerto Rico/Virgin Islands (FIPS 5200) | *Puerto Rico/Virgin Islands (FIPS 5200) | ||
</blockquote> | |||
*"Stereo70" | *"Stereo70" | ||
*"[https://en.wikipedia.org/wiki/Stereographic_projection#Cartography Stereographic]" | *"[https://en.wikipedia.org/wiki/Stereographic_projection#Cartography Stereographic]" | ||
*"[https://en.wikipedia.org/wiki/Swedish_grid Swedish Grid (RT90)]" | *"[https://en.wikipedia.org/wiki/Swedish_grid Swedish Grid (RT90)]" | ||
*"Swedish Grid (SWEREF99)" | *"Swedish Grid (SWEREF99)" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*SWEREF 99 TM | *SWEREF 99 TM | ||
*SWEREF 99 12 00 | *SWEREF 99 12 00 | ||
Line 679: | Line 678: | ||
*SWEREF 99 21 45 | *SWEREF 99 21 45 | ||
*SWEREF 99 23 15 | *SWEREF 99 23 15 | ||
</blockquote> | |||
*"[https://en.wikipedia.org/wiki/Swiss_coordinate_system Swiss Grid]" | *"[https://en.wikipedia.org/wiki/Swiss_coordinate_system Swiss Grid]" | ||
*"Swiss Grid (LV95)" | *"Swiss Grid (LV95)" | ||
*"System 1965 (Uklad 1965) [Poland] | *"System 1965 (Uklad 1965) [Poland] | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Zone (Strefa) 1 | *Zone (Strefa) 1 | ||
*Zone (Strefa) 2 | *Zone (Strefa) 2 | ||
Line 689: | Line 688: | ||
*Zone (Strefa) 4 | *Zone (Strefa) 4 | ||
*Zone (Strefa) 5 | *Zone (Strefa) 5 | ||
</blockquote> | |||
*"Times" | *"Times" | ||
*"[https://en.wikipedia.org/wiki/Transverse_Mercator_projection Transverse Mercator]" | *"[https://en.wikipedia.org/wiki/Transverse_Mercator_projection Transverse Mercator]" | ||
Line 698: | Line 697: | ||
*"UPS South (Univ. Polar Stereographic)" | *"UPS South (Univ. Polar Stereographic)" | ||
*"[https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_systemv UTM]" | *"[https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_systemv UTM]" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*-60 (174˚E - 180˚E - Southern Hemisphere) | *-60 (174˚E - 180˚E - Southern Hemisphere) | ||
*-59 (168˚E - 174˚E - Southern Hemisphere) | *-59 (168˚E - 174˚E - Southern Hemisphere) | ||
Line 819: | Line 818: | ||
*59 (168˚E - 174˚E - Northern Hemisphere) | *59 (168˚E - 174˚E - Northern Hemisphere) | ||
*60 (174˚E - 180˚E - Northern Hemisphere) | *60 (174˚E - 180˚E - Northern Hemisphere) | ||
</blockquote> | |||
*"[https://en.wikipedia.org/wiki/Van_der_Grinten_projection Van der Grinten]" | *"[https://en.wikipedia.org/wiki/Van_der_Grinten_projection Van der Grinten]" | ||
*"Vertical Near-Side Perspective" | *"Vertical Near-Side Perspective" | ||
Line 826: | Line 825: | ||
*"[https://en.wikipedia.org/wiki/Winkel_tripel_projection Winkel Tripel]" | *"[https://en.wikipedia.org/wiki/Winkel_tripel_projection Winkel Tripel]" | ||
*"Wisconsin County Reference System (WISCRS)" | *"Wisconsin County Reference System (WISCRS)" | ||
<blockquote style="margin-top:0px; margin-bottom:0px;"> | |||
*Adams County | *Adams County | ||
*Ashland County | *Ashland County | ||
Line 898: | Line 897: | ||
*Winnebago County | *Winnebago County | ||
*Wood County | *Wood County | ||
</blockquote> | |||
*"WTM83/91 (Wisc. Transverse Mercator)" | *"WTM83/91 (Wisc. Transverse Mercator)" | ||
|} | |} |
Revision as of 21:00, 18 January 2016
There are two main projection dialogs used in SMS, GMS, and WMS: The Display Projection dialog, and the Object Projection dialog. From each of these, the Select Projection dialog can be accessed. More detailed information about each projection and the information in these dialogs can be found in the Projections article.
Display Projection Dialog
The Display Projection dialog contains settings which are applied to the project as a whole.
Horizontal section
The Horizontal section of the dialog has two options available via radio buttons:
- No projection – This option doesn't set a projection, and only allows adjusting the horizontal Units used in the project. The available units include:
- "U. S. Survey Feet". Equal to 1200⁄3937 meters, approximately 0.3048006096 meters.
- "International Feet". Equal to 0.3048 meters.
- "Meters". Equal to the distance traveled by light in vacuum within 1⁄299792458 of a second.
- "Inches". Equal to 1⁄39.37 of a meter.
- "Centimeters". Equal to 1⁄100 of a meter.
- Global projection – Clicking on the Set Projection button allows more specific projections to be set. These are listed below in the Select Projection Dialog section.
Vertical section
The Vertical section has two drop-down boxes:
- Projection, giving the following options:
- "Local"
- "U. S. Survey Feet"
- "International Feet"
- "Meters"
- "Inches"
- "Centimeters"
Object Projection Dialog
The Object Projection dialog is the same as the Display Projection dialog, but only applies to one specific object (e.g., a coverage or a mesh). It can be accessed by selecting the object in the Project Explorer, then right-clicking on it and selecting Projection... from the menu.
Select Projection Dialog
The Select Projection dialog is accessed through the Set Projection... button in either the Display Projection dialog or the Object Projection dialog. It allows setting global projections for the project or for a specific object. It contains a single Projection tab with several options and sections.
All lists of drop-down selections are given in the order in which they appear in the drop-down.
Projection and Zone
There are many options available from the Projection drop-down:
List of Projections |
---|
The Projection drop-down contains the following options. If there is Zone information for a particular projection, the zones will be listed directly beneath the projection as an indented list. |
|
To the right of the Projection drop-down are three buttons:
- Load From File...: Allows a projection to be loaded from an external file. The accepted file formats are PRJ and SPR (PRJ is preferable).
- Save to File...: Allows the projection information set in this dialog to be saved as a PRJ file.
- Init from EPSG...: Opens a dialog where an EPSG Projection Code can be entered.
Datum
Datums in italics are placeholders for the collapsed list directly below that entry.
List of Datums | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Create New Datum Dialog
The Create New Datum dialog (right) allows for the creation of a new datum if the available datums (the list above) do not cover the needs of the user. There are a number of different fields and options in this dialog. These are detailed below:
- Datum Name: Enter the desired name for the new datum.
- Abbreviation (Optional): An optional field for a shortened version of the Datum Name.
- Prime Meridian (Degrees): Enter the prime meridian.
- Ellipsoid (Spheroid) Selection: This section consists of a drop-down list and two buttons:
- Add Ellipsoid...: This button brings up the Custom Ellipsoid Setup dialog. It has the following fields:
- Ellipsoid Name: Enter the desired name of the ellipsoid.
- Semi-Major Axis (meters): Enter the length of the semi-major axis.
- The two radio button options are:
- Use Semi-Minor Axis of: Enter the length of the the semi-minor axis.
- Use flattening of: Enter a number representing the flattening.
- Edit Ellipsoid...: Allows editing of a custom ellipsoid (one created with the Add Ellipsoid... button).
- The drop-down list options are:
Drop-down list options | |
---|---|
|
|
- Datum Transformation Method: This section consists of four radio button options:
- 3-parameter (Molodensky) Transformation: Uses the Molodensky transformation method.
- 7-parameter (Bursa-Wolfe) Transformation (Position Vector Rotation): Uses seven parameters: "three translations, three rotations, and a scale correction factor".
- 7-parameter (Bursa-Wolfe) Transformation (Coordinate Frame Rotation): Variation of the above.
- Custom Shift Based on Control Point File: Selecting this options brings up an Open dialog, allowing the user to select a Control Point File with the necessary data to set the datum transformation method. This file is a text file with entries (one per line) in the following format:
deg_longitude_in_new_datum,deg_latitude_in_new_datum,deg_longitude_in_WGS84,deg_latitude_in_WGS84
- Shifts to WGS84 (meters): This section allows the X Shift, Y Shift, and Z Shift to be manually set for the new datum.
- Rotation to WGS84: This section allows setting the X, Y, and Z in for the new datum by selecting from the Units drop-down:
- Scale Correction to WGS84 (parts per million): This section allows setting the Scale (ppm) for the new datum.
Planar Units
The planar unit is simply the measuring format used in the projection. Select the appropriate one from the list.
List of Planar Units | |
---|---|
|
|
Parameters
In the Parameters section, the Attribute and Value columns contain information specific to the Projection and Zone selected.
Related Topics
Projections | |
---|---|
UTM: | Africa • Asia • Australia • Europe • North America • South America |
State Plane: | Alaska • Hawaii • Mideast • Midwest • New England • Northwest • South Central • Southeast • Southwest • Virginia Area |
Other | CPP • Geographic |