se.1.1.0.Symbolizer.xsd Maven / Gradle / Ivy
SE Symbolizer version 1.1.0 (2006-07-20)
A "SymbolizerType" is an abstract type for encoding the graphical
properties used to portray geographic information. Concrete Symbolizer
types are derived from this base type.
A "BaseSymbolizer" defines the default properties of a Symbolizer to
be those of an external Symbolizer, which will frequently be inside
of an OGC Symbolizer repository. The Symbolizer properties given
in-line override the base-Symbolizer properties.
LINE Symbolizer
A LineSymbolizer is used to render a "stroke" along a linear geometry.
A Geometry gives reference to a (the) geometry property of a
feature to be used for rendering.
A "Stroke" specifies the appearance of a linear geometry. It is
defined in parallel with SVG strokes. The following SvgParameters
may be used: "stroke" (color), "stroke-opacity", "stroke-width",
"stroke-linejoin", "stroke-linecap", "stroke-dasharray", and
"stroke-dashoffset". Others are not officially supported.
A "SvgParameter" refers to an SVG/CSS graphical-formatting
parameter. The parameter is identified using the "name" attribute
and the content of the element gives the SVG/CSS-coded value.
The "ParameterValueType" uses WFS-Filter expressions to give
values for SE graphic parameters. A "mixed" element-content
model is used with textual substitution for values.
A "GraphicFill" defines repeated-graphic filling (stippling)
pattern for an area geometry.
A "GraphicStroke" defines a repeated-linear graphic pattern to be used
for stroking a line.
Initialgap defines the initial empty space, before the first Graphic or Label should be rendered.
Gap defines the empty space between two Graphics or Labels.
POLYGON Symbolizer
A "PolygonSymbolizer" specifies the rendering of a polygon or
area geometry, including its interior fill and border stroke.
A "Fill" specifies the pattern for filling an area geometry.
The allowed SvgParameters are: "fill" (color) and "fill-opacity".
POINT Symbolizer
A "PointSymbolizer" specifies the rendering of a "graphic Symbolizer"
at a point.
A "Graphic" specifies or refers to a "graphic Symbolizer" with inherent
shape, size, and coloring.
An "ExternalGraphic" gives a reference to a raster or vector
graphical object, either online or inline, in an externally-defined
graphic format.
A "Mark" specifies a geometric shape and applies coloring to it.
TEXT Symbolizer
A "TextSymbolizer" is used to render text labels according to
various graphical parameters.
A "Label" specifies the textual content to be rendered.
A "Font" element specifies the text font to use. The allowed
SvgParameters are: "font-family", "font-style", "font-weight",
and "font-size".
The "LabelPlacement" specifies where and how a text label should
be rendered relative to a geometry. The present mechanism is
poorly aligned with CSS/SVG.
A "PointPlacement" specifies how a text label should be rendered
relative to a geometric point.
An "AnchorPoint" identifies the location inside of a text label to
use an an 'anchor' for positioning it relative to a point geometry.
A "Displacement" gives X and Y offset displacements to use for
rendering a text label, graphic or other Symbolizernear a point.
A "LinePlacement" specifies how a text label should be rendered
relative to a linear geometry.
A "PerpendicularOffset" gives the perpendicular distance away
from a line to draw a label.
A "Halo" fills an extended area outside the glyphs of a rendered
text label to make the label easier to read over a background.
RASTER Symbolizer
A "RasterSymbolizer" is used to specify the rendering of
raster/matrix-coverage data (e.g., satellite images, DEMs).
"ChannelSelection" specifies the false-color channel selection
for a multi-spectral raster source.
"OverlapBehavior" tells a system how to behave when multiple
raster images in a layer overlap each other, for example with
satellite-image scenes.
A "ColorMap" defines either the colors of a pallette-type raster
source or the mapping of numeric pixel values to colors.
"ContrastEnhancement" defines the 'stretching' of contrast for a
channel of a false-color image or for a whole grey/color image.
Contrast enhancement is used to make ground features in images
more visible.
"ShadedRelief" specifies the application of relief shading
(or "hill shading") to a DEM raster to give it somewhat of a
three-dimensional effect and to make elevation changes more
visible.
"ImageOutline" specifies how individual source rasters in
a multi-raster set (such as a set of satellite-image scenes)
should be outlined to make the individual-image locations visible.
Function element
Numeric formatting function
Function for formatting numbers to make them human readable.
Date formatting function
Function for dates.
String formatting functions
Returns substrings.
Concatenates strings.
Changes the case of strings.
Strips off chars from a string value
Returns position of first occurence of a substring
Returns length of string
Categorize function
The transformation of continuous values to distinct values.
Interpolate function
The transformation of continuous values to a number of values.
Transformation of discrete values to other values
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