1/36. 2/36 something cool …

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Something cool … http://maps.google.com

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Google Maps API

Live earthquake mappinghttp://earthquakes.tafoni.net/

Other cool Google Maps API examples:

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More Google …

Search full text of bookse.g. http://books.google.com/books?q=uml

Calculator

Search tips & Hidden features

Also look for Google Code, Drive & Translate

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Google Earth ( http://earth.google.com )

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arcpy.mapping module

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What can you do with arcpy.mapping?

Manage Map Documents (mxd)Manage DataFrames and Layers

Change extentsAdd, remove, insert, move, and update layersFix broken data sourcesetc.

Manage some layer properties (definitionQuery, showLabels, etc.)

Page Layout elementsPosition, size, text, …

Print & Export map Map automation, map book creation (pdf tools)

Publish to ArcGIS server (not covered in this course)

Check for warnings and errorsConvert MXD to MSD

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Arcpy.mapping Classes & Functions

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MapDocument – Class / Function

…

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MapDocument Properties & Methods

PropertiesactiveView (rw)

author (rw)

credits (rw)

dataDrivenPages (ro)

dateExported (ro)

datePrinted (ro)

dateSaved (ro)

description (rw)

filePath (ro)

hyperlinkBase (rw)

relativePaths (ro)

summary (rw)

tags (rw)

title (rw)

MethodsdeleteThumbnail()

findAndReplaceWorkspacePaths( find_workspace_path, replace_workspace_path, {validate})

makeThumbnail ()

replaceWorkspaces( old_workspace_path, old_workspace_type, new_workspace_path, new_workspace_type, {validate})

save ()

saveACopy( file_name, {version})

(ro) = read-only(rw) = read-write

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MapDocument.ActiveView

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Find DataFrames in MapDocument

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DataFrame Properties & Methods

Propertiescredits (rw)

description (rw)

displayUnits (rw)

elementHeight (rw)

elementPositionX (rw)

elementPositionY (rw)

elementWidth (rw)

extent (rw)

geographicTransformations (rw)

mapUnits (ro)

name (rw)

referenceScale (rw)

rotation (rw)

scale (rw)

spatialReference (rw)

time (ro)

type (ro)

MethodspanToExtent(extent)

zoomToSelectedFeatures()

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Layer Class / FunctionLayer Class

Layer Function

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Layer Properties & Methods

Propertiesbrightness (rw)

contrast (rw)

credits (rw)

datasetName (rw)

dataSource (rw)

definitionQuery (rw)

description (rw)

isFeatureLayer (ro)

isGroupLayer (ro)

isRasterizingLayer (ro)

isRasterLayer (ro)

labelClasses (rw)

longName (ro)

name (rw)

serviceProperties (ro)

showLabels (rw)

transparency (rw)

visible (rw)

workspacePath (ro)

MethodsfindAndReplaceWorkspacePath( find_workspace_path, replace_workspace_path, {validate})

getExtent( {symbolized_extent})

getSelectedExtent( {symbolized_extent})

replaceDataSource( workspace_path, workspace_type, dataset_name, {validate})

save ()

saveACopy( file_name, {version})

supports( layer_property)

Selected properties

Layer = • .lyr file• Layer in DataFrame

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Find Layers in a DataFrame

i.e. All layers in all DataFrame’s

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Finding a specific layer in a DataFrame

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Working with Layers

arcpy.mapping can’tCreate new map layers in DataFrame or .lyr files from scratch Change all layer properties in a script

arcpy.mapping canAdd lyr file to DataFrame & change selected layer properties

dataSource, definitionQuery, etc. (see “(rw)” on previous slide)

Apply symbology from existing lyr files to existing layers in DataFrame

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Adding a Layer to a DataFrame

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Managing Layers in a DataFrame

Function Description

AddLayer Add a layer to a data frame within a map document (.mxd) using simple placement options.

AddLayerToGroup Add a layer to a group layer within a map document (.mxd) using simple placement options.

InsertLayer Insert a layer at a specific location within a data frame or within a group layer in a map document (.mxd).

MoveLayer Move a layer to a specific location within a data frame or group layer in a map document (.mxd).

RemoveLayer Remove a single layer or group layer from a specific data frame. If there is more than one layer that meets the criteria, then only the first layer will be removed unless the script iterates through each layer in a returned list.

UpdateLayer Update all layer properties or just the symbology for a layer in a map document (.mxd) by extracting the information from a source layer.

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Fixing broken data sources

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Methods for fixing broken data sourcesMapDocument.findAndReplaceWorkspacePaths(find_workspace_path, replace_workspace_path, {validate})

MapDocument.replaceWorkspaces(old_workspace_path, old_workspace_type, new_workspace_path, new_workspace_type,

{validate})

Layer.findAndReplaceWorkspacePath(find_workspace_path, replace_workspace_path, {validate})

Layer.replaceDataSource(workspace_path, workspace_type, dataset_name, {validate})

TableView.findAndReplaceWorkspacePath(find_workspace_path, replace_workspace_path, {validate})

TableView.replaceDataSource(workspace_path, workspace_type, dataset_name,

{validate})

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Fixing broken data source examples

Update all workspace paths for all the mxd’s in a folder from local system to UNC paths

Update all workspace paths to new folder and save to new mxd.

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Page Layout elements

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Getting Page Layout Elements

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MapSurround Element

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Text Element

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RefreshActiveView() and RefreshTOC()

After changing the content of a DataFrame or Page Layout … arcpy.RefreshActiveView()

After changing items in the Table of Contents (add, remove, move, update layers) …arcpy.RefreshTOC()

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Exporting maps to images (jpg)

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Exporting maps to PDF

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PDFDocument’s

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Creating/Opening PDF Documents

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PDFDocument.appendPages Example

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Working with arcpy.mapping scripts

Edit in PyScripter and use Load …

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Help is not perfect

Should be:Find the MAPSURROUND_ELEMENT with the name "ScaleBar" and move it's x position (relative to its anchor point) to the center of the parentDataFrame.  Save this change to the MXD.

Update: ESRI listened to me:

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