What s New for Developers in ArcGIS Maura Daffern October 16

Transcription

1 What s New for Developers in ArcGIS 10.1 Maura Daffern October 16 mdaffern@esri.ca

2 Today s Agenda This seminar is designed to help you understand: 1) Using Python to increase productivity 2) Overview of ArcGIS Runtime

3 Python (The Essentials)

4 Why Python? Fulfills the needs of our user community Simple and easy to learn Scalable Modular Object Oriented Easy to maintain Cross platform Established and active user community

5 What is ArcPy? ArcPy is a native Python site-package Includes code completion and intellisense Provides direct access to many ArcGIS modules Data access (new) Mapping (updated) Extensions - Spatial Analyst (updated) Network Analyst (new) Time (new)

6 Functions The ArcPy module contains functions that are necessary for performing scripting tasks Listing data Describing data Geodatabase management Validating table and field names Analyzing & Updating data Map production These functions allow users to automate manual tasks

7 What s new in Python in ArcGIS 10.1

8 Python Toolboxes Have a number of advantages over custom toolboxes Tools that work just like core geoprocessing tools Messages can be written to the results window A single place to edit parameter definitions, validation code, and source code) Implement licensing checks Create Value Table parameters Create composite data type i.e. A parameter than can accept a feature layer or a raster layer

9 Data Access Module Data Access Cursors (e.g. arcpy.da.searchcursor) Much faster than traditional cursors (e.g. arcpy.searchcursor) Support with statements No need to access the full geometry # Import arcpy reference library import arcpy # Print the tower id, type, and the feature s locations (lat, long) fields = [ TOWER_ID, TOWER_TYPE, SHAPE@XY ] with arcpy.da.searchcursor (r c:\data\utilities.gdb\towers, fields) as cursor: for row in cursor: print ( {0},{1},{2}.format(row[0], row[1], row[2]))

10 Accessing Geometry The geometry of features can be accessed using a new shape@ token Traditionally geometries slowed down the cursor since they could not be individually returned shape@area, shape@length, shape@xy, shape@m, shape@z, shape@truecentroid # Import arcpy reference library import arcpy # Calculate the sum (length) of all the ferry lines in Canada with arcpy.da.searchcursor(r c:\data\transportation.gdb\ferry","shape@length") as rows: print sum([row[0]for row in rows])

11 Writing Feature Geometry Insert cursors must be used to create new features Point and Array objects are used to create the feature parts Update cursors can be used to replace a row s existing geometry # Add a new ferry line to the ferry feature class using an InsertCursor with arcpy.da.insertcursor(r c:\data\transportation.gdb\ferry","shape@") as ferrycursor: # Create an array using a series of point objects ptlist = [arcpy.point( , ), arcpy.point( , )] linearray = arcpy.array(ptlist) # Create a stream polyline from the array polyline = arcpy.polyline (linearray) # Insert stream polyline into the dataset ferrycursor.insertrow([polyline])

12 Editor Class Allows use of edit sessions and operations to manage database transactions Similar to editing with the GUI (Editor Toolbar) Edits are temporary until saved and applied to the session fc = r Database Connections\Brampton.sde\brampton.jgp.schools workspace = os.path.dirname(fc) #Start an edit session since editing is usually tied to a specific database this variable must be provided. edit = arcpy.da.editor(workspace) #Edit session is started without undo/redo stack for versioned data. The second arg. states whether the data is versioned. edit.startediting(false, False) #Insert a row into the school table with arcpy.da.insertcursor(fc, ( NAME, SHAPE@ )) as schoolcursor: schoolcursor.insertrow([ School of Hard Rock, ( , )]) # Stop the edit session and commit the changes to the table edit.stopediting(true)

13 Python Add-ins

14 What is an Add-in? An add-in is a customization such as a collection of tools that plugs into ArcGIS Desktop Introduced at 10.0 to make it easier for users to extend ArcGIS Can be authored using.net Language & JAVA (ArcGIS 10.0) ArcGIS 10.1 introduces python to the list of supported languages

15 Python Add-in Wizard Introduced to streamline the add-in creation process Download available from the ArcGIS Resources Center Specify what product it s for Project properties can be defined easily within the wizard Creates all of the directories and files required for the add-in to work

16 Types of Python Add-ins Button Simple click to execute Tool Requires user interaction Combo Box Provide a set of choices Menu Container for buttons or other menus Toolbar Container for every add-in type Tool Palette Container of tools Application Extension Coordinates activities between other components i.e. If an extension is not enabled then the related series of tools will not be enabled

17 Demonstration Python resource center Creating a python toolbox Creating a python add-in

18 ArcGIS Runtime SDK for WPF

19 Why ArcGIS Runtime? ArcGIS Runtime SDK for WPF enables developers to build rich, highly functional GIS applications Applications with small memory and disk-space footprints Build touch-screen applications Leverage device gps (Location Aware device) Exploit the performance of the operating system Integrate with the ArcGIS system Network Analyst Python Scripting Geocoding Spatial Analyst 3D Analyst GPS Geoprocessing Map Display

20 ArcGIS Runtime (The Details) New Architecture Native 32 and 64 bit code execution Asynchronous programming enables true multi-threading Simplified Deployment No Install required Deploy only needed components Side-by-Side deployment Independent of other ArcGIS installs

21 Getting Started The Runtime is can be accessed through the Esri Developer Network (EDN) After installing the SDK you re provided with Central ArcGIS Runtime API Assemblies Samples Conceptual / API Reference Documentation VS 2010 / Blend 4 integration

22 Creating a WPF Application ) Project Template Directory 2) ArcGIS Templates (WPF, ArcObjects, Desktop Add-Ins, SOEs) 3) WPF Map Application 4) Screenshot of template application 5 5) Details about the project and where the solution will be stored

23 It s Not Just About Code ArcGIS for Desktop is used to provide a solution Content is Authored Map Packages Tiles Packages Locator Packages Functionality can be authored Geoprocessing Packages Packages can be delivered on media or downloaded from online ArcGIS for Server can deliver content directly to clients

24 Plan Map Content Map Buttons Live / Temporary Data Vehicles, events, query results... Operational Data Facilities, zones, networks Basemap Imagery, topographic data

25 Querying data Identify Operations Attribute and spatial queries Handled by specific task classes in the ESRI.ArcGIS.Client.Task namespace Similar programming pattern for each task Define input parameters Execute task asynchronously Process and display results

26 Editing Geodatabase Feature Editing File and SDE Geodatabase Simple feature editing Attributes and shape Supported by Feature Services Edit environment authored in ArcGIS for Desktop

27 Geoprocessing Tools, Scripts, and Models Supported System Tools Available depending on the level of the runtime Basic (None) Standard (ArcEditor level tools) Some tools require Standard level + Extension Tool list available The analyzers at 10.1 help to improve the service publishing workflow

28 Demonstration II ArcGIS Resource Center IDE Integration WPF Sample Editing

29 Summary In this seminar you were introduced to: 1) Using Python to increase productivity 2) Overview of ArcGIS Runtime

30 Python Resources ArcGIS Resources Center Using Python Help ArcGIS Python Recipes twitter.com/esricanada facebook.com/esricanada

31 Runtime WPF Resources ArcGIS Resources Center Using WPF Runtime Help WPF Runtime Concepts twitter.com/esricanada facebook.com/esricanada