NORTHARROW

Used in

CONFIG  REQUEST  RESPONSE  

Servers

Image  

Parent elements

OBJECT 

Syntax

<NORTHARROW	Attribute Description Table
(r)coords="double"      (r)type="1 - 8"      angle="0.0 - 360.0" [0]      antialiasing="true | false" [false]      outline="0,0,0 - 255,255,255"      overlap="true | false" [true]      shadow="0,0,0 - 255,255,255"      size="integer" [30]      transparency="0.0 - 1.0" [1.0] >      No Child Elements </NORTHARROW >
(r): Attribute or child element is required.

Description

Places a north arrow on the acetate layer of the map.

Restrictions

• NORTHARROW, as an object in an acetate layer, can only be used with Image Services in an HTML Viewer.

Notes

• The following north arrow types are available:
  
  
• NORTHARROW does not support custom arrows. However, custom north arrows can be created by using RASTERMARKERSYMBOL or TRUETYPEMARKERSYMBOL in an acetate layer.

Attribute Descriptions for NORTHARROW

Attribute	Usage
angle	Angle of the north arrow in degrees. 0 degrees points to the north, and values increase moving clockwise.
antialiasing	Used to make edges of labels and symbols smoother. When set to "true", antialiasing is active. Note that the time to generate a map may significantly increase when antialiasing is turned on.
coords	North arrow placement location. Coordinate pair is separated by white space by default. The separator can be changed by using SEPARATORS. If using pixel coordinates, "0 0" is in the lower left corner of the map viewer area.
outline	Outline color using RGB values.
overlap	Determines if labels can overlap this symbol. When "true", labels can overlap. When "false", labels will not overlap the symbol. If labels are not drawing as expected, check if overlap is set to "false" for this symbol or any other symbol in the ArcIMS service.
shadow	Shadow color using RGB values.
size	Arrow size in pixels.
transparency	Value to set percentage of transparency. 1.0 is 0 percent transparent. 0.0 is 100 percent transparent.
type	Value representing north arrow type.

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Examples for NORTHARROW

<?xml version="1.0" encoding="UTF-8"?> <ARCXML version="1.1"> <REQUEST>   <GET_IMAGE>     <PROPERTIES>       <ENVELOPE minx="-180" miny="-90" maxx="180" maxy="90" />       <IMAGESIZE width="643" height="502" />     </PROPERTIES>     <LAYER type="acetate" name="acetate" id="acetate">       <OBJECT units="pixel">         <NORTHARROW type="4" size="15" coords="20 30" shadow="32,32,32" angle="0" antialiasing="true" overlap="false"/>       </OBJECT>     </LAYER>   </GET_IMAGE> </REQUEST> </ARCXML>

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