Element

<Ray>

Description

A line radiating outward at a given bearing. Child elements of LineStyle, PointText or Symbol may be used to annotate the ray.

Example

This example contains both line and coordinate reference system elements.

• The ray is set in a reversed direction (by180°)

• Direction is the value of SECTR1 attribute.

• Length is based on the value of limit1

• If the lenone attribute has a value then the PortrayalCRS is applied, otherwise the GeographicCRS is used.

• If the limpat attribute is set to 2 (dashed) then the line is drawn according NALST1 feature code, other wise no line is drawn.

DCLIGHTS.xsl

<xsl:element name="Ray">

  <xsl:attribute name="reverseBearing">true</xsl:attribute>

  <xsl:attribute name="direction">

    <xsl:value-of select="SECTR1"/>

  </xsl:attribute>

  <xsl:attribute name="length">

    <xsl:value-of select="$limit1"/>

  </xsl:attribute>

  <xsl:attribute name="crs">

    <xsl:text>PortrayalCRS</xsl:text>

  </xsl:attribute>

  <xsl:element name="LineStyle">

    <xsl:if test="not(sector) or sector/limpat = 2">

      <xsl:attribute name="styleRef">NALTSL</xsl:attribute>

    </xsl:if>

  </xsl:element>

  <xsl:if test="sector/lim1hi">

      <xsl:call-template name="limitHighlight">

      <xsl:with-param name="hilightPattern" select="sector/lim1hi"/>

      <xsl:with-param name="side" select="'right'"/>

      <xsl:with-param name="colour" select="$colourToken"/>

      <xsl:with-param name="length" select="$limit1"/>

   </xsl:call-template>

  </xsl:if>

  <Distance attribute="lenone" max="40"/>

</xsl:element>

Instruction Set

<Ray reverseBearing="true" direction="325" length="40" crs="PortrayalCRS">

  <LineStyle styleRef="NALTSL"/>

  <Distance attribute="lentwo" max="40"/>

</Ray>

Attributes

Name

Type

Description

direction

Double

Status: Mandatory

The direction/bearing that the Ray is pointing.

Defaults to 0 of crs.

length

Double

Length of the Ray.

Status: Mandatory if the Ray is being drawn as a line, but optional if the Ray is only being used as a reference. Length units are defined by crs.

reverseBearing

Boolean

Status: Optional.

true means to reverse the direction/bearing by 180 degrees but use the Sodano calculation based on length.

This is useful for light sectors which are defined using the bearing from seaward.

Default is false or 0.