Projection Dialogs: Difference between revisions
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===Datum=== | ===Datum=== | ||
[https://en.wikipedia.org/wiki/Geodetic_datum Datums] in ''italics'' are placeholders for the collapsed list directly below that entry. | |||
{| class="mw-collapsible mw-collapsed" style="border:1px solid #D0E0FF; background-color:transparent; width:90%; margin-top:1em;" | |||
|- | |||
! colspan="2" | List of Datums | |||
|- style="vertical-align:top;" | |||
| style="width:50%;" | | |||
*Adindan | *Adindan | ||
*Ain el Abd (Bahrain) | *Ain el Abd (Bahrain) | ||
| Line 943: | Line 950: | ||
*Easter Island 1967 | *Easter Island 1967 | ||
*ED50 | *ED50 | ||
{{collapse top|title=ED50 Datums}} | |||
*ED50 (England) | *ED50 (England) | ||
*ED50 (Finland/Norway) | *ED50 (Finland/Norway) | ||
| Line 954: | Line 962: | ||
*ED50 (Spain/Portugal) - NTv2 Grid | *ED50 (Spain/Portugal) - NTv2 Grid | ||
*ED50 (Turkey) | *ED50 (Turkey) | ||
{{collapse bottom}} | |||
*ED79 | *ED79 | ||
*ED87 | *ED87 | ||
| Line 980: | Line 989: | ||
*Hungarian Datum 1972 | *Hungarian Datum 1972 | ||
*IGN72 Grande Terre (New Caledonia) | *IGN72 Grande Terre (New Caledonia) | ||
*''Indian (see below):'' | |||
{{collapse top|title=Indian Datums}} | |||
*Indian (Bangladesh) | *Indian (Bangladesh) | ||
*Indian (Mean Value) | *Indian (Mean Value) | ||
| Line 987: | Line 998: | ||
*Indian 1960 | *Indian 1960 | ||
*Indian 1975 | *Indian 1975 | ||
{{collapse bottom}} | |||
*Indonesia 1974 | *Indonesia 1974 | ||
*Ireland 1965 | *Ireland 1965 | ||
| Line 1,012: | Line 1,024: | ||
*Luref (Luxembourg) | *Luref (Luxembourg) | ||
*Luzon (Philippines) | *Luzon (Philippines) | ||
| | |||
*M'Poraloko (Gabon) | *M'Poraloko (Gabon) | ||
*Malongo 1987 | *Malongo 1987 | ||
| Line 1,021: | Line 1,034: | ||
*Minna (Cameroon) | *Minna (Cameroon) | ||
*Minna (Nigeria) | *Minna (Nigeria) | ||
*''MN County (see below):'' | |||
{{collapse top|title=MN County Datums}} | |||
*MN County (Anoka) | *MN County (Anoka) | ||
*MN County (Becker) | *MN County (Becker) | ||
| Line 1,106: | Line 1,121: | ||
*MN County (Wright) | *MN County (Wright) | ||
*MN County (Yellow Medicine) | *MN County (Yellow Medicine) | ||
{{collapse bottom}} | |||
*Modis Spheroid (6371007.181 M) | *Modis Spheroid (6371007.181 M) | ||
*NAD27 | *NAD27 | ||
{{collapse top|title=NAD27 Datums}} | |||
*NAD27 (Alaska) | *NAD27 (Alaska) | ||
*NAD27 (Aleutian Islands East) | *NAD27 (Aleutian Islands East) | ||
| Line 1,123: | Line 1,140: | ||
*NAD27 (San Salvador) | *NAD27 (San Salvador) | ||
*NAD27 (Yuma Proving Grounds) | *NAD27 (Yuma Proving Grounds) | ||
{{collapse bottom}} | |||
*NAD83 | *NAD83 | ||
{{collapse top|title=NAD83 Datums}} | |||
*NAD83 (Alabama HPGN) | *NAD83 (Alabama HPGN) | ||
*NAD83 (Arizona HPGN) | *NAD83 (Arizona HPGN) | ||
| Line 1,177: | Line 1,196: | ||
*NAD83 CSRS (Quebec) | *NAD83 CSRS (Quebec) | ||
*NAD83 CSRS (Saskatchewan) | *NAD83 CSRS (Saskatchewan) | ||
{{collapse bottom}} | |||
*Nahrwan | *Nahrwan | ||
*Naparima (UAE) | *Naparima (UAE) | ||
| Line 1,224: | Line 1,244: | ||
*RT38 (Stockholm) | *RT38 (Stockholm) | ||
*RT90 | *RT90 | ||
*''S-42 (see below)'' | |||
{{collapse top|title=S-42 Datums}} | |||
*S-42 (Pulkovo 1942) | *S-42 (Pulkovo 1942) | ||
*S-42 Albania | *S-42 Albania | ||
| Line 1,237: | Line 1,259: | ||
*S-42 Romania | *S-42 Romania | ||
*S-42 Russia | *S-42 Russia | ||
{{collapse bottom}} | |||
*S-JTSK (Czech Republic) | *S-JTSK (Czech Republic) | ||
*Sao Braz | *Sao Braz | ||
| Line 1,261: | Line 1,284: | ||
*WGS72 | *WGS72 | ||
*WGS84 | *WGS84 | ||
*''WI County (see below)'': | |||
{{collapse top|title=WI County Datums}} | |||
*WI County (Burnett) | *WI County (Burnett) | ||
*WI County (Chippewa) | *WI County (Chippewa) | ||
| Line 1,267: | Line 1,292: | ||
*WI County (Sheboygan) | *WI County (Sheboygan) | ||
*WI County (Taylor) | *WI County (Taylor) | ||
{{collapse bottom}} | |||
*Xian 1980 (China) | *Xian 1980 (China) | ||
*Yacare (Uruguay) | *Yacare (Uruguay) | ||
*Zanderij (Suriname) | *Zanderij (Suriname) | ||
|} | |||
===Planar Units=== | ===Planar Units=== | ||
Revision as of 20:39, 14 September 2015
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
File:DisplayProjection.jpg
Example of the 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"
- "NGVD 29 (US)"
- "NAVD 88 (US)"
- Units, giving the following options:
- "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
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.
| List of Projections | |||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| The Projection drop-down contains the following options. If there is Zone information for a particular projection, that projection will be bolded and the zones will be listed directly beneath the projection as a collapsed list. Click on "Show" to view the zones. | |||||||||||||||||||||||||||||||||||||||||||||||||
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Datum
Datums in italics are placeholders for the collapsed list directly below that entry.
| List of Datums | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||||||
Planar Units
- "Meters"
- "Feet (U.S. Survey)"
- "Feet (International)"
- "Nautical Miles"
- "Yards"
- "Indian Yards"
- "Clarke's Feet"
- "Cape Feet"
- "Inches"
- "Links"
- "Chains (Benoit)"
- "Chains (Sears)"
- "Clarke's Links"
- "Centimeters"
- "Millimeters"
- "Kilometers"
- "British Chains (Sears 1922 Truncated)"
- "Clarke's Yards"
- "German Legal Meters"
- "Gold Coast Feet"
- "Sears Yards"
- "Sears Feet"
Parameters
In the Parameters section, the Attribute and Value columns contain information specific to the Projection and Zone selected.
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 |
