org.geotools.filter.Filters.asDouble()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中org.geotools.filter.Filters.asDouble()方法的一些代码示例，展示了Filters.asDouble()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Filters.asDouble()方法的具体详情如下：
包路径：org.geotools.filter.Filters
类名称：Filters
方法名：asDouble

Filters.asDouble介绍

[英]Obtain the provided Expression as a double.
[中]以双精度形式获取提供的表达式。

代码示例

代码示例来源：origin: geotools/geotools

/**
 * Retrieve the opacity value of an Expression.
 *
 * @param opacity Expression object
 * @returna double value or 1.0 if unavailable.
 */
private static double opacity(Expression opacity) {
  if (opacity == null) {
    return 1.0;
  }
  double value = Filters.asDouble(opacity);
  return (Double.isNaN(value) ? 1.0 : value);
}

代码示例来源：origin: geotools/geotools

/**
 * Retrieves the opacity from a RasterSymbolizer.
 *
 * <p>If you are using something fun like rules you will need to do your own thing.
 *
 * @param symbolizer Raster symbolizer information.
 * @return opacity of the first RasterSymbolizer or NaN if unavailable.
 */
public static double rasterOpacity(RasterSymbolizer symbolizer) {
  if (symbolizer == null) {
    return Double.NaN;
  }
  return Filters.asDouble(symbolizer.getOpacity());
}

代码示例来源：origin: geotools/geotools

/**
 * Retrieve the opacity from the provided fill; or return the default.
 *
 * @param fill
 * @return opacity from the above fill; or return the Fill.DEFAULT value
 */
public static double opacity(Fill fill) {
  if (fill == null) {
    fill = Fill.DEFAULT;
  }
  Expression opacityExp = fill.getOpacity();
  if (opacityExp == null) {
    opacityExp = Fill.DEFAULT.getOpacity();
  }
  return Filters.asDouble(opacityExp);
}

代码示例来源：origin: geotools/geotools

/**
 * Retrieves the halo opacity from the first TextSymbolizer.
 *
 * @param symbolizer Text symbolizer information.
 * @return double of the halo's opacity, or NaN if unavailable.
 */
public static double textHaloOpacity(TextSymbolizer symbolizer) {
  if (symbolizer == null) {
    return Double.NaN;
  }
  Halo halo = symbolizer.getHalo();
  if (halo == null) {
    return Double.NaN;
  }
  Fill fill = halo.getFill();
  if (fill == null) {
    return Double.NaN;
  }
  Expression expr = fill.getOpacity();
  if (expr == null) {
    return Double.NaN;
  }
  return Filters.asDouble(expr);
}

代码示例来源：origin: geotools/geotools

/**
 * Retrieves the point border opacity from a PointSymbolizer.
 *
 * <p>If you are using something fun like rules you will need to do your own thing.
 *
 * @param symbolizer Point symbolizer information.
 * @return double of the point's border opacity, or NaN if unavailable.
 */
public static double pointBorderOpacity(PointSymbolizer symbolizer) {
  if (symbolizer == null) {
    return Double.NaN;
  }
  Graphic graphic = symbolizer.getGraphic();
  if (graphic == null) {
    return Double.NaN;
  }
  for (GraphicalSymbol gs : graphic.graphicalSymbols()) {
    if (gs != null && gs instanceof Mark) {
      Mark mark = (Mark) gs;
      Stroke stroke = mark.getStroke();
      if (stroke != null) {
        Expression exp = stroke.getOpacity();
        return Filters.asDouble(exp);
      }
    }
  }
  return Double.NaN;
}

代码示例来源：origin: org.geotools/gt2-main

/**
 * This method is here for backward compatability.
 *
 * @param expr DOCUMENT ME!
 *
 * @return DOCUMENT ME!
 *
 * @see Filters#doubleValue(Expression)
 * @deprecated
 */
public static double doubleValue(Expression expr) {
  return Filters.asDouble(expr);
}

代码示例来源：origin: org.geotools/gt-main

/**
 * Retrieve the opacity value of an Expression.
 *
 * @param opacity Expression object
 *
 * @returna double value or 1.0 if unavailable.
 */
private static double opacity( Expression opacity ) {
  if( opacity == null ){
    return 1.0;
  }
  double value = Filters.asDouble(opacity);
  return (Double.isNaN(value) ? 1.0 : value);
}

代码示例来源：origin: org.geotools/gt-main

/**
 * Retrieves the opacity from a RasterSymbolizer.
 * <p>
 * If you are using something fun like rules you  will need to do your own
 * thing.
 * </p>
 *
 * @param symbolizer Raster symbolizer information.
 * @return opacity of the first RasterSymbolizer or NaN if unavailable.
 */
public static double rasterOpacity(RasterSymbolizer symbolizer) {
  if (symbolizer == null) {
    return Double.NaN;
  }
  return Filters.asDouble(symbolizer.getOpacity());
}

代码示例来源：origin: org.geotools/gt-main

/**
 * Retrieve the opacity from the provided fill; or return the default.
 * @param fill
 * @return opacity from the above fill; or return the Fill.DEFAULT value
 */
public static double opacity(Fill fill) {
  if (fill == null) {
    fill = Fill.DEFAULT;
  }
  Expression opacityExp = fill.getOpacity();
  if( opacityExp == null ){
    opacityExp = Fill.DEFAULT.getOpacity();
  }
  return Filters.asDouble(opacityExp);
}

代码示例来源：origin: org.geotools/gt-widgets-swing-pending

valeur = Filters.asDouble(sym.getFill().getOpacity());
} else if (value instanceof PointSymbolizer) {
  PointSymbolizer sym = (PointSymbolizer) value;
  valeur = Filters.asDouble(sym.getGraphic().getOpacity());
} else if (value instanceof LineSymbolizer) {
  LineSymbolizer sym = (LineSymbolizer) value;
  valeur = Filters.asDouble(sym.getStroke().getOpacity());
} else if (value instanceof RasterSymbolizer) {
  RasterSymbolizer sym = (RasterSymbolizer) value;
  valeur = Filters.asDouble(sym.getOpacity());

代码示例来源：origin: geotools/geotools

assertEquals(0.5, Filters.asDouble(place.getAnchorPoint().getAnchorPointX()), 0.1);
assertEquals(0.5, Filters.asDouble(place.getAnchorPoint().getAnchorPointY()), 0.1);

代码示例来源：origin: geotools/geotools

assertEquals(0.5, Filters.asDouble(placement.getAnchorPoint().getAnchorPointX()), 0.1);
assertEquals(0.0, Filters.asDouble(placement.getAnchorPoint().getAnchorPointY()), 0.1);
assertEquals(0, Filters.asInt(placement.getDisplacement().getDisplacementX()));
assertEquals(5, Filters.asInt(placement.getDisplacement().getDisplacementY()));

代码示例来源：origin: org.geotools/gt-main

/**
 * Retrieves the halo opacity from the first TextSymbolizer.
 *
 * @param symbolizer Text symbolizer information.
 *
 * @return double of the halo's opacity, or NaN if unavailable.
 */
public static double textHaloOpacity(TextSymbolizer symbolizer) {
  if (symbolizer == null) {
    return Double.NaN;
  }
  Halo halo = symbolizer.getHalo();
  if (halo == null) {
    return Double.NaN;
  }
  Fill fill = halo.getFill();
  if (fill == null) {
    return Double.NaN;
  }
  Expression expr = fill.getOpacity();
  if( expr == null ){
    return Double.NaN;
  }
  return Filters.asDouble(expr);
}

代码示例来源：origin: geotools/geotools

assertEquals(0.5, Filters.asDouble(placement.getAnchorPoint().getAnchorPointX()), 0.1);
assertEquals(0.0, Filters.asDouble(placement.getAnchorPoint().getAnchorPointY()), 0.1);
assertEquals(0, Filters.asInt(placement.getDisplacement().getDisplacementX()));
assertEquals(25, Filters.asInt(placement.getDisplacement().getDisplacementY()));

代码示例来源：origin: geotools/geotools

@Test
public void testRasterWithTransparentGradient() throws Exception {
  //    <UserStyle>
  //      <Title>SLD Cook Book: Transparent gradient</Title>
  //      <FeatureTypeStyle>
  //        <Rule>
  //          <RasterSymbolizer>
  //            <Opacity>0.3</Opacity>
  //            <ColorMap>
  //              <ColorMapEntry color="#008000" quantity="70" />
  //              <ColorMapEntry color="#663333" quantity="256" />
  //            </ColorMap>
  //          </RasterSymbolizer>
  //        </Rule>
  //      </FeatureTypeStyle>
  //    </UserStyle>
  Style style = parse("raster", "transparent-gradient.sld");
  RasterSymbolizer raster = SLD.rasterSymbolizer(style);
  assertEquals(0.3, Filters.asDouble(raster.getOpacity()), 0.1);
  ColorMapEntry e = raster.getColorMap().getColorMapEntry(0);
  assertEquals("#008000", Filters.asString(e.getColor()));
  assertEquals(70, Filters.asInt(e.getQuantity()));
  e = raster.getColorMap().getColorMapEntry(1);
  assertEquals("#663333", Filters.asString(e.getColor()));
  assertEquals(256, Filters.asInt(e.getQuantity()));
}

代码示例来源：origin: org.geotools/gt-widgets-swing-pending

private Double format(MapLayer layer) {
  FeatureTypeStyle[] sty = layer.getStyle().getFeatureTypeStyles();
  double valeur = 1d;
  Rule[] rules = sty[0].getRules();
  for (int i = 0; i < rules.length; i++) {
    Rule r = rules[i];
    //on regarde si la regle s'applique au maplayer (s'il n'y a aucun filtre)
    if (r.getFilter() == null) {
      Symbolizer[] symbolizers = r.getSymbolizers();
      for (int j = 0; j < symbolizers.length; j++) {
        if (symbolizers[j] instanceof PolygonSymbolizer) {
          PolygonSymbolizer sym = (PolygonSymbolizer) symbolizers[j];
          valeur = Filters.asDouble(sym.getFill().getOpacity());
        } else if (symbolizers[j] instanceof PointSymbolizer) {
          PointSymbolizer sym = (PointSymbolizer) symbolizers[j];
          //valeur = SLD.pointOpacity(sym);
          valeur = Filters.asDouble(sym.getGraphic().getOpacity());
        } else if (symbolizers[j] instanceof LineSymbolizer) {
          LineSymbolizer sym = (LineSymbolizer) symbolizers[j];
          valeur = Filters.asDouble(sym.getStroke().getOpacity());
        } else if (symbolizers[j] instanceof RasterSymbolizer) {
          RasterSymbolizer sym = (RasterSymbolizer) symbolizers[j];
          valeur = Filters.asDouble(sym.getOpacity());
        }
      }
    }
  }
  return valeur;
}

代码示例来源：origin: geotools/geotools

assertEquals(7.5, Filters.asDouble(stroke.getDashOffset()), 0.1);

代码示例来源：origin: geotools/geotools

assertEquals(0.5, Filters.asDouble(contrast.getGammaValue()), 0.1);
assertEquals(ContrastMethod.NORMALIZE, contrast.getMethod());

代码示例来源：origin: org.geotools/gt-main

/**
 * Retrieves the point border opacity from a PointSymbolizer.
 * <p>
 * If you are using something fun like rules you  will need to do your own
 * thing.
 *
 * @param symbolizer Point symbolizer information.
 *
 * @return double of the point's border opacity, or NaN if unavailable.
 */
public static double pointBorderOpacity(PointSymbolizer symbolizer) {
  if (symbolizer == null) {
    return Double.NaN;
  }
  Graphic graphic = symbolizer.getGraphic();
  if (graphic == null) {
    return Double.NaN;
  }
  for (GraphicalSymbol gs : graphic.graphicalSymbols()) {
    if (gs != null && gs instanceof Mark) {
      Mark mark = (Mark) gs;
      Stroke stroke = mark.getStroke();
      if (stroke != null) {
        Expression exp = stroke.getOpacity();
        return Filters.asDouble(exp);
      }
    }
  }
  return Double.NaN;
}

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