Graticule

A Graticule is a special kind of LineString item that automatically draws latitude and longitude ticks and graticules using the world position of the contents of a Map Frame item.

Because Graticule items can be time-consuming to setup, commands are provided for storing and recalling Graticule Style objects from Named Object Libraries.

Properties

• Closed
• Dicing
• Double-sided ticks
• Draw labels
• Draw margin
• Geometry class
• Graticule brush
• Graticule level
• Graticule pen
• Graticule span
• Latitude format
• Latitude step
• Longitude format
• Longitude step
• Number of vertices
• Tick length
  

Properties

• Closed: _closed&
  Does the geometry of the item form a closed loop?
  
  
• Dicing: _graticuleDicing&
  Should Graticule dicing be drawn?
  
  This parameter can only be set in level 1.
  
  
  
• Double-sided ticks: _graticuleDoubleSidedTick&
  Should the Graticule tick be drawn on both sides of the Graticule outline at this level?
  
  
  
• Draw labels: _graticuleLabel&
  Should the Graticule ticks be labeled at this level?
  
  
  
• Draw margin: _graticuleMargin&
  Should a margin be drawn around the Graticule tick lines at this level.
  
  
  
• Geometry class: _classGeom$
  The C++ class used to store an item's geometry. This is handled automatically. You can see what precision an item's geometry is stored with by recognising the geometry classes.
  
  
• Graticule brush: _graticuleBrush$
  The Brush with which to draw the Graticule label text at this level.
  
  
• Graticule level: _graticuleLevel&
  The current Graticule level. Each Graticule has up to eight levels of tick line (numbered from 0 to 7), each of which can have properties set.
  
  
• Graticule pen: _graticulePen$
  The Pen with which to draw the Graticule lines and label text at this level.
  
  
• Graticule span: _graticuleSpan&
  The type of Graticule span at this level.
  
  Valid values are:
  
  

SIS_GRATICULE_NONE	No lines appear across the map frame, but Labels or Ticks (Tick length) can still be drawn if required.
SIS_GRATICULE_GRID	Draw a grid latitude and longitude lines.
SIS_GRATICULE_CROSSHAIR	Draw a grid of crosshairs at latitude and longitude intersections.
SIS_GRATICULE_CROSSHAIR_TEXT	Draw a grid of crosshairs annotated with latitude and longitude text.

• Latitude format: _graticuleFormatLat$
  The format string for the latitude Graticule label text at this level, using the following format specifications:
  
  

  %d or %D	Print the degrees (%D appends a degrees symbol °)
  %m or %M	Print the minutes (%M appends a ')
  %s or %S	Print the seconds (%S appends a ")
  %c or %C	Print the direction (N, S, E, or W)

  
  %d, %D, %m, %M, %s and %S can be modified to print fixed width and precision (like the C printf function), e.g.: %4.2s   
  
  
• Latitude step: _graticuleStepLat#
  The Graticule latitude step, in degrees, at this level.
  
  
• Longitude format: _graticuleFormatLon$
  The format string for the longitude Graticule label text at this level, using the following format specifications:
  
  

  %d or %D	Print the degrees (%D appends a degrees symbol °)
  %m or %M	Print the minutes (%M appends a ')
  %s or %S	Print the seconds (%S appends a ")
  %c or %C	Print the direction (N, S, E, or W)

  
  %d, %D, %m, %M, %s and %S can be modified to print fixed width and precision (like the C printf function), e.g.: %4.2s   
  

• Longitude step: _graticuleStepLon#
  The Graticule longitude step, in degrees, at this level.
  
  
• Number of vertices: _np&
  The number of vertices in the item's geometry.
  
  
• Tick length: _graticuleTickLength&
  The length, in millimetres, of a Graticule tick, at this level.
  
  

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