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RenderSettings.md

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RenderSettings (settings, striding, renderer, scalewidth, scalecontours, renderhint, rendertextforvectors)

Back to Configuration

settings

settings : auto / precise / fast

Controls behaviour of nearestneighbour rendering (https://github.com/KNMI/adaguc-server/blob/master/adagucserverEC/CImgWarpNearestNeighbour.h).

  • auto: Automatically selects precise or fast setting based on grid size. Grids larger than 700x700 pixels will be done with fast (smaller grids with precise).
  • precise: Gridded files up to 1000x1000 pixels can be done with the precise renderer. This uses the GenericDataWarper
  • fast: Grid larger than 1000x1000 should be rendered with the option fast. This uses the AreaMapper
  • For files over 4000x4000 pixels tiling is recommended.
<RenderSettings settings="precise"/>

rendertextforvectors

<RenderSettings rendertextforvectors="true" />

When set to true, it will render text with windbarbs.

striding

Controls how many grid cells are skipped. E.g. if set to 2, every other (even) grid cell is used for reading.

<RenderSettings striding="1"/>

renderer

At the moment GD can be forced

<RenderSettings renderer="gd" />

renderhint

The renderhint provides a hint to the renderer on what type of styling to use to generate the image. Can be discreteclasses to use ShadeInterval configuration.

<RenderSettings renderhint="discreteclasses" />

For example to use discrete legend classes with the nearest neighbour or bilinear renderer do:

 <Style name="elevation_nl">

    <RenderSettings renderhint="discreteclasses"/>

    <RenderMethod>nearest,bilinear</RenderMethod>

    <NameMapping name="nearest" title="Height map nearest neighbour" abstract="Height map for AHN using nearest neighbour rendering" />
    <NameMapping name="bilinear" title="Height map bilinear" abstract="Height map for AHN using bilinear rendering" />

    <ShadeInterval min="-80" max="-7" fillcolor="#08387b" bgcolor="#FF000080" />
    <ShadeInterval min="-7" max="-6" fillcolor="#084584" />
    <ShadeInterval min="-6" max="-5" fillcolor="#105184" />
    <ShadeInterval min="-5" max="-4" fillcolor="#105D84" />
    <ShadeInterval min="-4" max="-3" fillcolor="#10698C" />
    <ShadeInterval min="-3" max="-2.5" fillcolor="#18758C" />
    <ShadeInterval min="-2.5" max="-2" fillcolor="#18828C" />
    <ShadeInterval min="-2" max="-1.5" fillcolor="#189294" />
    <ShadeInterval min="-1.5" max="-1" fillcolor="#219694" />
    <ShadeInterval min="-1" max="-0.5" fillcolor="#219E8C" />
    <ShadeInterval min="-0.5" max="0" fillcolor="#18A284" />
    <ShadeInterval min="0" max="0.5" fillcolor="#18AA7B" />
    <ShadeInterval min="0.5" max="1" fillcolor="#18B26B" />
    <ShadeInterval min="1" max="1.5" fillcolor="#10BA63" />
    <ShadeInterval min="1.5" max="2" fillcolor="#10BE52" />
    <ShadeInterval min="2" max="2.5" fillcolor="#08C742" />
    <ShadeInterval min="2.5" max="3" fillcolor="#08CF31" />
    <ShadeInterval min="3" max="3.5" fillcolor="#08CF31" />
    <ShadeInterval min="3.5" max="4" fillcolor="#00DB00" />
    <ShadeInterval min="4" max="4.5" fillcolor="#10DF00" />
    <ShadeInterval min="4.5" max="5" fillcolor="#29E300" />
    <ShadeInterval min="5" max="6" fillcolor="#42E700" />
    <ShadeInterval min="6" max="7" fillcolor="#63EB00" />
    <ShadeInterval min="7" max="8" fillcolor="#7BEF00" />
    <ShadeInterval min="8" max="9" fillcolor="#94F300" />
    <ShadeInterval min="9" max="10" fillcolor="#B5F700" />
    <ShadeInterval min="10" max="12" fillcolor="#CEF700" />
    <ShadeInterval min="12" max="14" fillcolor="#EFFF00" />
    <ShadeInterval min="14" max="16" fillcolor="#FFFB00" />
    <ShadeInterval min="16" max="18" fillcolor="#FFF300" />
    <ShadeInterval min="18" max="20" fillcolor="#FFE700" />
    <ShadeInterval min="20" max="25" fillcolor="#F7D700" />
    <ShadeInterval min="25" max="30" fillcolor="#F7CF08" />
    <ShadeInterval min="30" max="35" fillcolor="#F7C708" />
    <ShadeInterval min="35" max="40" fillcolor="#F7BE08" />
    <ShadeInterval min="40" max="45" fillcolor="#F7B610" />
    <ShadeInterval min="45" max="50" fillcolor="#EFA610" />
    <ShadeInterval min="50" max="60" fillcolor="#EFA210" />
    <ShadeInterval min="60" max="70" fillcolor="#EF9A10" />
    <ShadeInterval min="70" max="80" fillcolor="#E78E18" />
    <ShadeInterval min="80" max="90" fillcolor="#E78621" />
    <ShadeInterval min="90" max="100" fillcolor="#DE7921" />
    <ShadeInterval min="100" max="125" fillcolor="#D66D29" />
    <ShadeInterval min="125" max="150" fillcolor="#D66929" />
    <ShadeInterval min="150" max="175" fillcolor="#CE6131" />
    <ShadeInterval min="175" max="200" fillcolor="#CE5931" />
    <ShadeInterval min="200" max="250" fillcolor="#C67739" />
    <ShadeInterval min="250" max="300" fillcolor="#C65139" />
  </Style>

The legend will look like: