RasterPaletteAdder

Creates a palette from an attribute, and adds this palette to all selected bands on a raster.

典型的用途

Adding palettes to rasters to meet format or processing requirements.

How does it work?

RasterPaletteadder接收栅格功能，并将调色板添加到所有选定的频段。

The palette must be provided as an attribute, and the band(s) must have an interpretation type ofUINT8那uint16，或者UINT32.。

如果它们不符合所选频段的解释，则将丢弃调色板键。例如，在向UINT8频段添加调色板时，将丢弃大于255的所有键。

This transformer supports raster band selection. Therasterselectorcan be used to modify selection.

Palettes

Palettes can be acquired and assigned to an attribute in a number of ways, including:

Create a palette in a text file, and use anattributefilereader.要加载它并将其分配给属性
使用一个字符串在工作区中创建一个调色板，使用AttributeCreator或者AttributeManager
Extract a palette from a different raster using aRasterPaletteExtractor
Extract a palette from a different band on the same raster usingrasterselectorA.RasterPaletteExtractor

调色板属性的格式

调色板属性的一般格式如下：

格式	RGB Example	字符串示例
<值解释> [<字符串长度>] ......	RGB24 0 0,49,190 1 50,255,50 2 172,0,255 3 255,0,0.	字符串10. 0水 1森林 2商业 3.Urban

调色板的第一行必须包含价值解释。值解释的有效值是：

RGB24
RGBA32
RGB48
RGBA64
Gray8.
灰色16.
细绳

RGBA并由comma-delim RGB面板值ited strings of integers between 0 and the maximum value of the data type. For example, a valid RGBA32 value would be64,128,255,255那A.valid RGB48 value would be16384,32768,65535。

当指定了字符串解释时，第一行可以可选地指定调色板值的最大字符串长度。此值必须是正整数。如果未明确指定字符串长度，则将假设默认值为32。

细绳palette values may consist of any arbitrary text, except for the newline character.

灰色调色板值由0个整数和数据类型的最大值之间组成。

第一个是键值对之后的所有线条。调色板键必须按升序组织，但它们不需要是连续的 - 也就是说，并非必须存在系列中的所有数字。所有缺陷的调色板键最多关注0或等效值，例如RGB的0,0,0或字符串调色板的空字符串。

Examples

Usage Notes

要从栅格中的现有单元值生成调色板，请使用Rasterpalettegenerator。

选择光栅变压器

FME has an extensive selection of transformers for working with raster data. They can be generally categorized as working with whole rasters, bands, cells or palettes, and those designed for workflow control or combining raster with vector data.

有关光栅几何和属性的信息，请参阅罗斯克斯(IFMERaster)。

光栅变压器

Working with Rasters

这些变压器通常适用于整个栅格。

RasterCellOriginSetter	将单元格源点设置在栅格中的单元格中。
RasterConvolver.	Applies a convolution filter (sometimes called a核心或者lens）栅格功能并输出结果。
rasterexpressionEvaluator.	评估栅格或一对栅格中的每个单元格的表达式，包括代数操作和条件陈述。
RasterExtentsCoercer	Replaces the geometry of input raster features with a polygon covering either the extents of a raster or the extent of data within a raster.
RasterGCPExtractor	提取物地面控制点(GCP) coordinate system and point values from a raster feature and exposes them as attributes.
Rastergcpsetter.	套地面控制点s(GCPs) on a raster, pairing cell positions with known coordinates.
RastergeoreFerencer.	通过已知的角落坐标或起源，单元格尺寸和旋转来绕地理栅格。
Rasterhillsshader.	Generates a grayscale shaded relief representation of terrain, based on elevation values.
RasterInterpretationCoercer	Alters the interpretation type of rasters, including all bands, and converts cell values if necessary.
rastermosaicker.	将多个栅格功能合并到单个栅格功能中。
RasterPropertyExtractor	提取物the geometry properties of a raster feature and exposes them as attributes.
Rasterpyramider.	基于最小输出光栅的任一数量或尺寸，将栅格重新列出到多个分辨率。
RasterRegisterer	转换图像以最小化其与另一个的差异。
RasterResampler.	Resamples rasters, based on specified output dimensions, cell size in ground units, or percentage of original, and interpolates new cell values.
RasterRotationApplier	根据其旋转角度旋转栅格功能，内插新的单元格值，更新所有受影响的栅格属性，并使用旋转角度产生输出栅格功能。
rastersharpener.	Enhances the features of a raster image. The RasterSharpener enhances the borders, lines, and curves while reducing noise in the flat areas of the raster image.
rastersubsetter.	Clips raster features using pixel bounds instead of ground coordinates, and optionally adds cells around the perimeter.
rastertiler.	Splits each input raster into a series of tiles by specifying either a tile size in cells/pixels or the number of tiles.
RasterToPolygonCoercer	Creates polygons from input raster features. One polygon is output for each contiguous area of pixels with the same value in the input raster.
WebMaptiler.	Creates a series of image tiles that can be utilized by web mapping applications such as Bing™ Maps, Google Maps™, or Web Map Tile Service. This is done by resampling rasters to various different resolutions and then splitting them into tiles.

Working with Bands

这些变压器通常适用于带。

RasterBandadder.	添加一个新的乐队raster feature.
RasterBandCombiner	将巧合栅格功能合并到单个输出栅格功能，保留和附加所有频段。
RasterBandInterpretationCoercer	改变单个光栅带的解释类型，如有必要，转换单元值。
Rasterbandeepter	Removes all unselected bands from a raster feature.
RasterBandMinMaxExtractor	提取物the minimum and maximum band values, palette keys, and palette values from a raster feature, and adds them to a list attribute.
Rasterbandnamesetter.	将所选频段的频带名称设置在栅格上，与频带数字相比，使栅格内容更加简单地理解。
RasterBandNodataRemover	Removes the existing nodata identifier from selected bands of a raster feature. Any values previously equal to the nodata value are considered valid data.
RasterBandNodataseTter.	套a new nodata value on selected bands of a raster feature.
RasterBandorder	指定栅格中的频带所需顺序。频带根据输入带索引重新排序。
RasterBandPropertyExtractor.	提取物the band and palette properties of a raster feature and exposes them as attributes.
RasterBandRemover	Removes any selected bands from a raster feature.
漂流带带子	将频带或唯一频带和调色板组合分开，并输出单个栅格功能或包含所有组合的单个新栅格功能。
RasterStatisticsCalculator	计算栅格频段的统计信息，并将结果添加为属性。

使用细胞

Working with Palettes

Workflow Control

Vectors and Rasters

配置

输入端口

输出Ports

参数

Editing Transformer Parameters

使用一组菜单选项，可以通过引用工作区中的其他元素来分配变压器参数。一些变压器也可提供更高级的功能，例如高级编辑器和算术编辑器。要访问这些选项的菜单，请单击除适用的参数旁边。有关更多信息，请参阅Transformer Parameter Menu Options。

定义值

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

如何设置参数值

Using the Text Editor

文本编辑器提供了一种方便的方法来构建来自各种数据源的文本字符串（包括正则表达式），例如属性，参数和常量，其中结果直接在参数内使用。

文本编辑器

使用算术编辑器

The Arithmetic Editor provides a convenient way to construct math expressions from various data sources, such as attributes, parameters, and feature functions, where the result is used directly inside a parameter.

Arithmetic Editor

条件值

Set values depending on one or more test conditions that either pass or fail.

Parameter Condition Definition Dialog

内容

Expressions and strings can include a number of functions, characters, parameters, and more.

When setting values - whether entered directly in a parameter or constructed using one of the editors - strings and expressions containing String, Math, Date/Time or FME Feature Functions will have those functions evaluated. Therefore, the names of these functions (in the form @<function_name>）不应用作文字字符串值。

对话框选项 - 表格

Transformers with table-style parameters have additional tools for populating and manipulating values.

Reference

Processing Behavior	特征为基础
功能持有	不
依赖关系	没有
FME Licensing Level	FME专业版及以上
别名
历史

FME Community

The FME Community is the place for demos, how-tos, articles, FAQs, and more. Get answers to your questions, learn from other users, and suggest, vote, and comment on new features.

搜索all results about the RasterPaletteAdder关于FME社区。亚搏国际在线官网

Examples may contain information licensed under the Open Government Licence – Vancouver and/or the Open Government Licence – Canada.

RasterAspectCalculator	Calculates the aspect (direction of slope) for each cell of a raster. Aspect is measured in degrees from 0 to 360, clockwise from north.
RasterCellCoercer.	为栅格中的每个单元格创建各个点或多边形，可选地将频带值提取为z坐标或属性。
RasterCellvaluecalculator.	在一对栅格的单元格值上评估基本算术，最小值或平均操作。
RasterCellValueReplacer	Replaces a range of band values in a raster with a new single value.
RasterCellValueRounder	舍入光栅单元值。
罗斯特司人	Partitions a raster image into arbitrarily sized groups of cells from the input image based on intensity differences in the input raster image cells.
RasterSingularCellValueCalculator	Performs basic arithmetic operations on the cell values of a raster against a numeric value.
rasterslopecalculator.	计算栅格的每个单元格的斜率（z的最大变化率）。

RasterPaletteAdder	Creates a palette from an attribute, and adds this palette to all selected bands on a raster.
RasterPaletteExtractor	在栅格上创建现有调色板的字符串表示，并将其保存到属性。
Rasterpalettegenerator	Generates a palette out of the selected band(s) of a raster. The output raster will have the selected band(s) replaced by a new band with a palette.
RasterpaletteInterpretationCoercer.	改变光栅调色板的解释类型。
RasterPaletteNodataSetter	标识与栅格乐队的Nodata值匹配的调色板键，并设置一个值。
RasterPaletteRemover	从栅格功能中删除选定的调色板。
Rasterpaletteresolver	Resolves the palette(s) on a raster by replacing cell values with their corresponding palette values. Palette values with multiple components, such as RGB, are broken down and the individual values assigned to multiple, newly-added bands.

RastercheckPointer.	Forces accumulated raster operations to be processed, saving the state to disk and releasing resources to tune performance or assist with memory limitations.
RasterConsumer.	Reads raster features for testing purposes, including any accumulated raster operations. No additional operations are performed, and nothing is done with the features.
RasterExtractor	将栅格功能的几何图中序列化为Blob属性，根据常用二进制栅格格式的选择编码内容。
RasternumericCreator.	Creates a numeric raster of specified size and resolution, with default cell values.
RasterReplacer.	解码包含存储为Blobs的编码栅格的二进制属性，用解码栅格替换要素的几何图形。
RasterRGBCreator	Creates a color raster feature of specified size, resolution, and interpretation type, with default cell values.
rasterselector	Selects specific bands and palettes of a raster for subsequent transformer operations.

ImageRasterizer.	使用纯背景填充的FME_COLOR属性填充矢量功能，创建矢量或点云输入功能的光栅表示。可以使用颜色或强度分量呈现点云。
NumericRasterizer	创建矢量或点云输入特征的数字栅格表示，其中从输入特征的z坐标中取出单元值并覆盖在均匀的背景上。
Mapnikerasterizer.	Generates a raster from input vector and raster features, with fine control over symbolization and labeling, using the Mapnik toolkit.
PointCloudonRasterComponentsEtter.	通过覆盖光栅上的点云来设置点云组件值。每个点的组件值从点位置处的频带值内插。
PointOnRasterValueExtractor	从一个或多个输入点的位置处从栅格中提取频带和调色板值，并将其设置为特征上的属性。
RasterDEMGenerator	通过统一采样从输入点和断裂线产生的Delaunay三角测量来产生光栅数字高度模型（DEM）。
vectoronrasteroverlayer.	将矢量或点云功能光栅化到现有的光栅上。对于向量特征，FME_Color属性设置像素颜色，可以使用它们的颜色或强度分量呈现点云。

String Functions	这些功能操纵和格式化字符串。
特殊的角色	A set of control characters is available in the Text Editor.
数学函数	两个编辑器都有数学函数。
Date/Time Functions	Date and time functions are available in the Text Editor.
Math Operators	These operators are available in the Arithmetic Editor.
FME Feature Functions	这些主要是特定于特征的值。
FME Parameters	FME and workspace-specific parameters may be used.
创建和修改用户参数	创建自己的可编辑参数。