Résumé
The Layout object references a single-page layout in an ArcGIS Pro project (.aprx). It provides access to common properties like page size and a number of different export methods.
Discussion
An ArcGIS Pro project can contain multiple page layouts. Layouts are accessed using the listLayouts method on the ArcGISProject object and it returns a Python list of Layout objects. It is important to uniquely name each layout so a specific page layout can be easily referenced by its name.
The listElements method provides access to all the elements on the page layout: GraphicElement, LegendElement, MapFrameElement, MapSurroundElement, PictureElement, and TextElement.
The Layout object is where you'll find access to a number of exportTo methods. Use the Layout export methods if you want to export the entire page layout. There is also a similar set of export methods available on the MapFrame class, if you only want to export the contents of a single map frame.
A layout can contain a single MapSeries. If the mapSeries property returns None, then a map series has not been created in the layout. You should also check to see if the map series is enabled before attempting to manipulate its properties.
Propriétés
| Propriété | Explication | Type de données |
| mapSeries (Lecture/écriture) | Returns a MapSeries object if a spatial map series is enabled. It returns a NoneType if a map series does not exist or it is a bookmark map series. | MapSeries |
| metadata (Lecture/écriture) | Get or set the layout's Metadata class information. Note, setting metadata is dependent on the isReadOnly property value. | Metadata |
| name (Lecture/écriture) | The layout's name. It is important that all layouts have a unique name so they can be easily referenced by name. | String |
| pageHeight (Lecture/écriture) | A layout's page height based on the current pageUnits. | Double |
| pageUnits (Lecture/écriture) | A layout's page units. Below is a list of valid strings when setting the page units.
| String |
| pageWidth (Lecture/écriture) | A layout's page width based on the current pageUnits. | Double |
Vue d’ensemble des méthodes
| Méthode | Explication |
| exportToAIX (out_aix, {resolution}, {image_quality}, {compress_vector_graphics}, {image_compression}, {jpeg_compression_quality}, {embed_fonts}, {embed_color_profile}, {clip_to_elements}) | Exports a page layout to Adobe Creative Cloud (AIX) format. |
| exportToBMP (out_bmp, {resolution}, {bmp_color_mode}, {bmp_image_compression}, {embed_color_profile}, {clip_to_elements}) | Exports the page layout to the Microsoft Windows Bitmap format (BMP). |
| exportToEMF (out_emf, {resolution}, {image_quality}, {output_as_image}, {clip_to_elements}) | Exports the page layout to the Enhanced Metafile (EMF) format. |
| exportToEPS (out_eps, {resolution}, {image_compression}, {image_quality}, {embed_fonts}, {output_as_image}, {clip_to_elements}) | Exports a page layout to an Encapsulated PostScript (EPS) format file. |
| exportToGIF (out_gif, {resolution}, {gif_color_mode}, {clip_to_elements}) | Exports a page layout to Graphic Interchange Format (GIF). |
| exportToJPEG (out_jpg, {resolution}, {jpeg_color_mode}, {jpeg_quality}, {embed_color_profile}, {clip_to_elements}) | Exports a page layout to a Joint Photographic Experts Group (JPEG) format file. |
| exportToPAGX (out_pagx) |
Exports a layout to a page file. |
| exportToPDF (out_pdf, {resolution}, {image_quality}, {compress_vector_graphics}, {image_compression}, {embed_fonts}, {layers_attributes}, {georef_info}, {jpeg_compression_quality}, {clip_to_elements}, {output_as_image}, {embed_color_profile}) | Exports a page layout to Portable Document Format (PDF). |
| exportToPNG (out_png, {resolution}, {color_mode}, {transparent_background}, {embed_color_profile}, {clip_to_elements}) | Exports a page layout to a Portable Network Graphics (PNG) format file. |
| exportToSVG (out_svg, {resolution}, {compress_to_svgz}, {image_quality}, {embed_fonts}, {output_as_image}, {clip_to_elements}) | Exports a page layout to the Scalable Vector Graphics format (SVG). |
| exportToTGA (out_tga, {resolution}, {color_mode}, {transparent_background}, {clip_to_elements}) | Exports the page layout to the Truevision Graphics Adapter format (TGA). |
| exportToTIFF (out_tif, {resolution}, {color_mode}, {tiff_compression}, {jpeg_compression_quality}, {transparent_background}, {embed_color_profile}, {clip_to_elements}) | Exports the page layout to a Tagged Image File Format (TIFF) file. |
| getDefinition (cim_version) | Gets a layout's CIM definition. |
| listElements ({element_type}, {wildcard}) | Returns a Python list of page layout elements that exist on a Layout object. |
| setDefinition (definition_object) | Sets a layout's CIM definition. |
Méthodes
exportToAIX (out_aix, {resolution}, {image_quality}, {compress_vector_graphics}, {image_compression}, {jpeg_compression_quality}, {embed_fonts}, {embed_color_profile}, {clip_to_elements})| Paramètre | Explication | Type de données |
out_aix | A string that represents the path and file name for the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 300) | Integer |
image_quality | A string that specifies output image quality, the draw resolution of map layers that draw as rasters.
(La valeur par défaut est BEST) | String |
compress_vector_graphics | A Boolean that controls compression of vector and text portions of the output file. Image compression is defined separately. (La valeur par défaut est True) | Boolean |
image_compression | A string that specifies the compression scheme used to compress image or raster data in the output file.
(La valeur par défaut est ADAPTIVE) | String |
jpeg_compression_quality | A number that controls compression quality value when image_compression is set to ADAPTIVE or JPEG. The valid range is 1 through 100. A jpeg_compression_quality of 100 provides the best quality images but creates large export files. The recommended range is between 70 and 90. (La valeur par défaut est 80) | Integer |
embed_fonts | A Boolean that controls the embedding of fonts in the export file. Font embedding allows text and character markers to be displayed correctly when the document is viewed on a computer that does not have the necessary fonts installed. (La valeur par défaut est True) | Boolean |
embed_color_profile | If set to True, color profile information is embedded in the image's metadata. (La valeur par défaut est True) | Boolean |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
AIX is an Adobe Illustrator Exchange file exported from ArcGIS to be used with ArcGIS Maps for Adobe Creative Cloud plug-in. When used with the plugin vector and raster map content is converted into editable, layered artwork for an improved editing experience in Adobe Illustrator. Once opened in Illustrator it can be used for high end graphic design or map finishing workflows and migrated across the other Adobe Creative Cloud applications.
exportToBMP (out_bmp, {resolution}, {bmp_color_mode}, {bmp_image_compression}, {embed_color_profile}, {clip_to_elements})| Paramètre | Explication | Type de données |
out_bmp | A string that represents the path and file name for the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 96) | Integer |
bmp_color_mode | This value specifies the number of bits used to describe color.
(La valeur par défaut est 24-BIT_TRUE_COLOR) | String |
bmp_image_compression | A string that specifies the compression scheme used to compress image or raster data in the output file. This option only applies to 8-bit bmp_color_mode options.
(La valeur par défaut est NONE) | String |
embed_color_profile | If set to True, color profile information is embedded in the image's metadata. (La valeur par défaut est True) | Boolean |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
BMP files are native Windows raster images. BMP files can store pixel data at several bit depths. BMP images are typically much larger than formats such as JPEG or PNG.
exportToEMF (out_emf, {resolution}, {image_quality}, {output_as_image}, {clip_to_elements})| Paramètre | Explication | Type de données |
out_emf | A string that represents the system path and file name for the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 96) | Integer |
image_quality | A string that specifies output image quality, the draw resolution of map layers that draw as rasters.
(La valeur par défaut est BEST) | String |
output_as_image | If set to True, vector content can be saved as an image. Selecting this option for maps or layouts that contain vector layers with a high density of vertices can reduce the output file size. When exporting to PDF and this option is set to True, you cannot view PDF layers in the output. (La valeur par défaut est False) | Boolean |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
EMF files are native Windows graphics files that can contain a mixture of vector and raster data. They are useful for embedding in Windows documents because the vector portions of the EMF can be resized without loss of quality. However, since EMF does not support font embedding and is exclusively a Windows format, it is not commonly used as an interchange format between users.
exportToEPS (out_eps, {resolution}, {image_compression}, {image_quality}, {embed_fonts}, {output_as_image}, {clip_to_elements})| Paramètre | Explication | Type de données |
out_eps | A string that represents the system path and file name for the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 96) | Integer |
image_compression | A string that specifies the compression scheme used to compress image or raster data in the output file.
(La valeur par défaut est DEFLATE) | String |
image_quality | A string that specifies output image quality, the draw resolution of map layers that draw as rasters.
(La valeur par défaut est BEST) | String |
embed_fonts | A Boolean that controls the embedding of fonts in the export file. Font embedding allows text and character markers to be displayed correctly when the document is viewed on a computer that does not have the necessary fonts installed. (La valeur par défaut est True) | Boolean |
output_as_image | If set to True, vector content can be saved as an image. Selecting this option for maps or layouts that contain vector layers with a high density of vertices can reduce the output file size. When exporting to PDF and this option is set to True, you cannot view PDF layers in the output. (La valeur par défaut est False) | Boolean |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
EPS files use the PostScript page description language to describe vector and raster objects. PostScript is the publishing industry standard for high-end graphics files, cartography, and printing. EPS files can be edited in many drawing applications or placed as a graphic in most page layout applications. EPS files support embedding of fonts so users who do not have Esri fonts installed can still view the proper symbology.
exportToGIF (out_gif, {resolution}, {gif_color_mode}, {clip_to_elements})| Paramètre | Explication | Type de données |
out_gif | A string that represents the system path and file name for the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 96) | Integer |
gif_color_mode | This value specifies the number of bits used to describe color.
(La valeur par défaut est 8-BIT_PALETTE) | String |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
GIF files are a legacy raster format for use on the web. GIF files cannot contain more than 256 colors (8 bits per pixel), which along with optional lossless compression, makes them smaller than other file formats.
exportToJPEG (out_jpg, {resolution}, {jpeg_color_mode}, {jpeg_quality}, {embed_color_profile}, {clip_to_elements})| Paramètre | Explication | Type de données |
out_jpg | A string that represents the path and file name of the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 96) | Integer |
jpeg_color_mode | This value specifies the number of bits used to describe color.
(La valeur par défaut est 24-BIT_TRUE_COLOR) | String |
jpeg_quality | This value (0–100) controls the amount of compression applied to the output image. With a JPEG image, quality is adversely affected the more compression is applied. A higher quality (highest = 100) setting will produce sharper images and larger file sizes. A lower quality setting will produce more image artifacts and smaller files. (La valeur par défaut est 80) | Integer |
embed_color_profile | If set to True, color profile information is embedded in the image's metadata. (La valeur par défaut est True) | Boolean |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
JPEG files are compressed image files. They support 24-bit color and are a popular choice for use on the web because a JPEG file size is often substantially smaller than many other image formats. However, the JPEG compression algorithm is lossy and is not recommended for many map images, as line drawings, and text or icon graphics, become blurred by compression artifacts. Therefore, PNG is usually a superior format for map images.
exportToPAGX (out_pagx)
| Paramètre | Explication | Type de données |
out_pagx | A string used to save a layout to a page file (.pagx). | String |
This method is useful if you want to save a layout to a page file that can be imported later into a project using the ArcGISProject importDocument method.
exportToPDF (out_pdf, {resolution}, {image_quality}, {compress_vector_graphics}, {image_compression}, {embed_fonts}, {layers_attributes}, {georef_info}, {jpeg_compression_quality}, {clip_to_elements}, {output_as_image}, {embed_color_profile})| Paramètre | Explication | Type de données |
out_pdf | A string that represents the path and file name for the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 300) | Integer |
image_quality | A string that specifies output image quality, the draw resolution of map layers that draw as rasters.
(La valeur par défaut est BEST) | String |
compress_vector_graphics | A Boolean that controls compression of vector and text portions of the output file. Image compression is defined separately. (La valeur par défaut est True) | Boolean |
image_compression | A string that specifies the compression scheme used to compress image or raster data in the output file.
(La valeur par défaut est ADAPTIVE) | String |
embed_fonts | A Boolean that controls the embedding of fonts in the export file. Font embedding allows text and character markers to be displayed correctly when the document is viewed on a computer that does not have the necessary fonts installed. (La valeur par défaut est True) | Boolean |
layers_attributes | A string that specifies whether the PDF layer and PDF object data (attributes) will be included in the export file.
(La valeur par défaut est LAYERS_ONLY) | String |
georef_info | A Boolean that enables the export of coordinate system information for each data frame into the output PDF file. (La valeur par défaut est True) | Boolean |
jpeg_compression_quality | A number that controls compression quality value when image_compression is set to ADAPTIVE or JPEG. The valid range is 1 through 100. A jpeg_compression_quality of 100 provides the best quality images but creates large export files. The recommended range is between 70 and 90. (La valeur par défaut est 80) | Integer |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
output_as_image | If set to True, vector content can be saved as an image. Selecting this option for maps or layouts that contain vector layers with a high density of vertices can reduce the output file size. When exporting to PDF and this option is set to True, you cannot view PDF layers in the output. (La valeur par défaut est False) | Boolean |
embed_color_profile | If set to True, color profile information is embedded in the image's metadata. (La valeur par défaut est True) | Boolean |
PDF files are designed to be consistently viewable and printable across different platforms. They are commonly used for distributing documents on the web, and the format is now an official ISO standard for document interchange. PDF files are editable in many graphics applications and retain map georeference information, annotation, labeling, and feature attribute data. PDF exports support embedding of fonts and can display symbology correctly even if the user does not have Esri fonts installed.
Review the PDFDocument class to learn more about how to manage PDF files, such as appending, inserting, and setting properties.
exportToPNG (out_png, {resolution}, {color_mode}, {transparent_background}, {embed_color_profile}, {clip_to_elements})| Paramètre | Explication | Type de données |
out_png | A string that represents the path and file name of the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 96) | Integer |
color_mode | This value specifies the number of bits used to describe color.
(La valeur par défaut est 32-BIT_WITH_ALPHA) | String |
transparent_background | If set to True, the white page background is set to transparent. (La valeur par défaut est False) | Boolean |
embed_color_profile | If set to True, color profile information is embedded in the image's metadata. (La valeur par défaut est True) | Boolean |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
A PNG file is a versatile raster format file that can display in web browsers and be inserted into other documents. It supports high-bit-depth color and uses a lossless compression. For maps, PNG is often the best raster format, since the lossless compression keeps text and line work legible by preventing the compression artifacts that can occur in JPEG format. PNG files can also define a transparent color.
exportToSVG (out_svg, {resolution}, {compress_to_svgz}, {image_quality}, {embed_fonts}, {output_as_image}, {clip_to_elements})| Paramètre | Explication | Type de données |
out_svg | A string that represents the path and file name for the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 96) | Integer |
compress_to_svgz | If set to True, the output is compressed. (La valeur par défaut est False) | Boolean |
image_quality | A string that specifies output image quality, the draw resolution of map layers that draw as rasters.
(La valeur par défaut est BEST) | String |
embed_fonts | A Boolean that controls the embedding of fonts in the export file. Font embedding allows text and character markers to be displayed correctly when the document is viewed on a computer that does not have the necessary fonts installed. (La valeur par défaut est True) | Boolean |
output_as_image | If set to True, vector content can be saved as an image. Selecting this option for maps or layouts that contain vector layers with a high density of vertices can reduce the output file size. When exporting to PDF and this option is set to True, you cannot view PDF layers in the output. (La valeur par défaut est False) | Boolean |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
SVG is an XML-based file format that has been specifically designed for viewing on the web. SVG can contain both vector and raster information. Some web browsers may require a plug-in to view SVG files. Older browsers may not be able to view SVG files at all. SVG supports font embedding, so users who do not have Esri fonts installed can still view SVG exports with proper symbology. You can also choose to produce compressed SVG files. The file extension changes to .svgz when this option is enabled.
exportToTGA (out_tga, {resolution}, {color_mode}, {transparent_background}, {clip_to_elements})| Paramètre | Explication | Type de données |
out_tga | A string that represents the path and file name for the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 96) | Integer |
color_mode | This value specifies the number of bits used to describe color.
(La valeur par défaut est 32-BIT_WITH_ALPHA) | String |
transparent_background | If set to True, the white page background is set to transparent. (La valeur par défaut est False) | Boolean |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
TGA files have historically been used for content that is meant to be used in other applications (for example, image sprites for animated games) and is read and written by many popular graphic arts applications. TGA format supports multiple bit depths including 32-bit with alpha (transparency) support.
exportToTIFF (out_tif, {resolution}, {color_mode}, {tiff_compression}, {jpeg_compression_quality}, {transparent_background}, {embed_color_profile}, {clip_to_elements})| Paramètre | Explication | Type de données |
out_tif | A string that represents the path and file name of the output export file. | String |
resolution | A number that defines the resolution of the export file in dots per inch (dpi). (La valeur par défaut est 96) | Integer |
color_mode | This value specifies the number of bits used to describe color.
(La valeur par défaut est 24-BIT_TRUE_COLOR) | String |
tiff_compression | This value represents a compression scheme.
(La valeur par défaut est LZW) | String |
jpeg_compression_quality | This value (0–100) controls the amount of compression applied to the output image. With a JPEG image, quality is adversely affected the more compression is applied. A higher quality (highest = 100) setting will produce sharper images and larger file sizes. A lower quality setting will produce more image artifacts and smaller files. (La valeur par défaut est 80) | Integer |
transparent_background | If set to True, the white page background is set to transparent. (La valeur par défaut est False) | Boolean |
embed_color_profile | If set to True, color profile information is embedded in the image's metadata. (La valeur par défaut est True) | Boolean |
clip_to_elements | If set to True, the layout is clipped to the smallest bounding box that includes all layout elements. (La valeur par défaut est False) | Boolean |
TIFF files are the best choice for importing into image editing applications and are also a common GIS raster data format. However, they cannot be natively viewed by a web browser.
getDefinition (cim_version)
| Paramètre | Explication | Type de données |
cim_version | A string that represents the major version of the CIM. | String |
CIM-level access to additional object properties was introduced at version 2.4. Esri follows the semantic versioning specification. This means that until the next major release—for example, 3.0—when breaking API changes are allowed, the value to be used with cim_version is V2. Once 3.0 is released, a new V3 option will become available. This gives Python script authors control over the CIM version that will be used during execution if there is a possibility that breaking changes may be introduced in the new version.
For more information about working with the CIM and samples, see Python CIM Access.
listElements ({element_type}, {wildcard})| Paramètre | Explication | Type de données |
element_type | A string that represents the element type that will be used to filter the returned list of elements.
(La valeur par défaut est None) | String |
wildcard | A wildcard is based on the element name and is not case sensitive. A combination of asterisks (*) and characters can be used to help limit the results. (La valeur par défaut est None) | String |
| Type de données | Explication |
| List | A Python list of page layout elements. The types of objects that can be returned are GraphicElement, LegendElement, MapFrame, MapsurroundElement, PictureElement, and TextElement. |
Each page element has a name property that can be set within the element properties dialog box. It is the layout author's responsibility to ensure each page element is given a unique name so that elements can be uniquely identified. If two elements have the same name, there is no way to ensure it is the element you want to reference.
The listElements method will return the elements within a group element into a flattened list. This makes it possible to easily search and replace text strings, for example, without having to navigate through a group element structure.
The element_type parameter can be skipped by passing an empty string or by including the parameter name for all parameters that follow the skipped parameter. For example elm = lyt.listElements("", "Title")[0]
#or
elm = lyt.listElements(wildcard="Title")[0]
setDefinition (definition_object)
| Paramètre | Explication | Type de données |
definition_object | A modified CIM definition object originally retrieved using getDefinition. | Object |
For more information about working with the CIM and samples, see Python CIM Access.
Exemple de code
The following script uses the keyword current, so it should be run from the Python window. The script prints the name of each map in a project and its layers as well as the name of each layout and its page size.
aprx = arcpy.mp.ArcGISProject("CURRENT")
for m in aprx.listMaps():
print("Map: " + m.name)
for lyr in m.listLayers():
print(" " + lyr.name)
print("Layouts:")
for lyt in aprx.listLayouts():
print(f" {lyt.name} ({lyt.pageHeight} x {lyt.pageWidth} {lyt.pageUnits})")The following script will update a map frame's area of interest by zooming to each bookmark that belongs to a map called Yosemite National Park and exports the result to individual PDF documents.
import arcpy, os
aprx = arcpy.mp.ArcGISProject(r"C:\Projects\YosemiteNP\Yosemite.aprx")
lyt = aprx.listLayouts("Main Attractions*")[0]
mf = lyt.listElements("MAPFRAME_ELEMENT", "Yosemite National Park*")[0]
bkmks = mf.map.listBookmarks()
for bkmk in bkmks:
mf.zoomToBookmark(bkmk)
lyt.exportToPDF(os.path.join(r"C:\Projects\YosemiteNP", f"{bkmk.name}.pdf"))
del aprxThe following script will check for the presence of a map series, then export two of its pages out to PDF.
import arcpy
import os
import sys
relpath = os.path.dirname(sys.argv[0])
p = arcpy.mp.ArcGISProject(relpath + "\\MapSeries\\US_States.aprx")
l = p.listLayouts()[0]
if not l.mapSeries is None:
ms = l.mapSeries
if ms.enabled:
ms.currentPageNumber = ms.getPageNumberFromName("Rhode Island")
ms.exportToPDF(relpath + "\\Output\\Ex1_RI.pdf", "CURRENT", resolution=300)
ms.currentPageNumber = ms.getPageNumberFromName("Washington")
ms.exportToPDF(relpath + "\\Output\\Ex1_WA.pdf", "CURRENT")Vous avez un commentaire à formuler concernant cette rubrique ?