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DCL:GRPH2:UMPACK:
Map Projection Routines: Explanation of Subroutines
12.2.2 UMSCWD
- 1.
- Function
Sets a circular window.
- 2.
- Call
CALL UMSCWD(UXC, UYC, R)
- 3.
- Explanation of Parameters
| UXC,UYC |
(R) |
Longitude and latitude of the center. |
| R |
(R) |
The radius of the window. (in angle) |
- 4.
- Notes
- (a)
- This information is used by UMPFIT.
- (b)
- The scaling factor is set so that the area inside this circle in included.
- (c)
- In cylindrical and conical projections, unlike UMSCNT, normal
aspect is selected even when UYC is not 0, unless explicitly
specified.
- (d)
- In a conical projection, UYC will be the standard meridian unless
the standard meridian (STLAT1) is specified.