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DCL:GRPH2:UMPACK:  
Map Projection Routines: Explanation of Subroutines:  
Control
 
12.2.1 umscnt
  
 
- 1. 
- Function 
 
Specifies the "contact" of the plane of projection. 
   
- 2. 
- Call 
   
NumRu::DCL.umscnt(xcnt,ycnt,rot)  
   
- 3. 
- Explanation of Parameters 
   
 
| uxc,uyc | (R) | The longitude and latitude of the contact. |  | rot | (R) | The inclination of the central meridian. (clockwise) |  
 
 
- 4. 
- Notes 
   
- (a) 
- This information is used by UMPFIT. 
- (b) 
- In a normal cylindrical projection (normal aspect),  UYC=0 and  
  rot=0. Otherwise, it is in an oblique aspect.  
    
- (c) 
- In a conical projection,   
	  uyc  becomes the standard meridian unless the standard meridian (STLAT1)  
  is specified. When the standard meridian is specified, a cone corresponding to  
  it is set, and the cone is inclined so that it comes into contact at (UXC,  
  UYC). Such a projection is in an oblique aspect.  
    
- (d) 
- In the azimuthal projection, (UXC,UYC,ROT) is synonymous with the 
  pole of the map projection (PLX,PLY,PLROT).