Web AppBuilder for ArcGIS (Developer Edition)

Cost Analysis widget

(Added at v2.7)

The Cost Analysis widget enables you to assign a cost factor for each feature you create. These costs are automatically tallied and provide an overall project or event cost. Additional cost factors can be applied, or the entire cost can be scaled based on factors not captured in the data. Costs can be assigned for the edit templates of each layer, and they can be different depending on the area in which the features are created.

Configure settings

Configure the settings of the Cost Analysis widget.

General settings

The general settings options are as follows:

  • Measurement Unit—The standard of measure for displaying length and area of features to be costed.
  • Measurement Symbol—Displays the cost.
  • Round Cost—The rounded final cost of the project.
    Note:

    Individual line items are not rounded, only the final result.

  • Type of Project Area—As you sketch in features, a boundary of all the features in your project is made. Use this setting to determine the type of area you want.

Project settings

The project settings options are as follows:

  • Define geography for costing—This layer allows you to set cost equations of feature templates based on geographies.
    • Costing Geometry Layer—If your project consists of different areas of interest, and those areas have different costs associated with them, specify them here. This layer must be a polygon.
    • Field to Label Geography—The descriptive field of the costing geometry to display.
  • Ability to Save and Load project settings—Configuring these tables and layers allows you to save or load the project.
    Note:

    The settings on these tabs are optional. If you decide not to specify any of these parameters, you can still cost out features you sketch on the map. The widget still provides the final cost of all features sketched. It will not save the project, so if you restart the app, all your cost information is removed.

    • Project Assets Table—This table associates all drawn features to the project along with any costing geography so that a project can be reloaded at any time.
    • Project Multiplier Additional Cost Table—This table stores costs that are not associated with any feature, such as rebates, credits, sponsorships, and rentals.
    • Project Layer—This is a polygon feature layer that stores the details of the project along with the net and gross cost of the project.

Layer settings

If the feature layer has a field where you want to store the Project ID, you can specify it here. When you sketch a feature on the map, the field specified here on its corresponding layer will be updated with the Project ID.

This tab shows all the layers in the map. You can select the layers you want to edit and use for costing out a project. If there are layers that are not editable, the Editable check box will be unavailable.

Costing information

  • Feature Template—The layers for which you enabled editing on the Layer settings tab are listed here as individual tables. There is a row for each feature template for its corresponding layer. This allows you to cost each feature template independently. You can have more than one of the same feature template as long as you have a different Geography or Scenario setting for each.
  • Cost Equation—This is where you define the cost for each feature template.

    You can have a fixed number, such as 100. Each time you sketch in a feature from this feature's template, 100 appears in the line item. This text field also supports mathematical expressions. Additionally, there are built-in variables you can access to build complex expressions. These built-in variables are {MEASURE} for the length or area of the feature, {TOTALMEASURE} for the length or area of all the same drawn features, and {TOTALCOUNT} for the count of all the same features. You can build an expression such as {MEASURE} * 100. If you draw a line, the widget will take the length of the line and multiple that value by 100 to get you the cost of that feature.

  • Geography—If you specified a cost geography on the Project Settings tab, this drop-down list will show the distinct records.

    The Geography option allows you to define cost by geographic area. For example, you have a costing geography that consists of high fire threat regions and low fire threat regions, and you have a feature layer for electric poles. Your feature templates for an electric pole are based on material, and one of the values is wood. For the low fire threat region, you set the cost to X, where X is the base cost of the pole. In the high fire threat region, you set the value of the wood pole to 2X, because it has to be treated to resist fire. If you choose to break down your costing by geography, you need to ensure that for each feature template, you have a none case. This is in case your sketch falls into an area that is outside of any costing geography, but still needs a cost associated with it.

  • Scenario—Scenarios behave similarly to geography but without any spatial component. If you have different use cases where you need to have different costs, this is when scenarios are useful. You can manage scenarios by clicking the Manage Scenarios button.

    For example, if you have a tree trimming route, you can define different contractors as scenarios so that contractor 1 costs X amount to trim trees and contractor 2 costs Y amount to trim trees. The contractors would be added as scenarios. You can have the same scenario in different costing geographies. In this example, contractor 1 can trim in both high and low fire threat regions.

  • Actions—Allows you to delete or copy rows.

Statistics settings

If there is a need to understand statistical information in your project, use these settings to set up those calculations. For example, if you are sketching several proposed detention ponds and you want to know the maximum amount of storage available across all the ponds, you can set that statistic using this setting. You can build new statistics while using the widget. Those statistics are not saved and are lost when the application is reloaded. The statistics you define here are persisted.

Use the Cost Analysis widget

Complete the following steps to configure the Cost Analysis widget:

  1. Click the Cost Analysis widget button Cost analysis button.

    The Cost Analysis window appears.

    Cost Analysis window

    The top part of the widget shows the features you can sketch or copy onto the map using Feature Mode. The middle section shows the list of features drawn on the map and the cost of each item. This section also shows the total and gross costs of the design work. Also in this section, you can define statistics for your design. The bottom section contains the Back and Refresh buttons. Click Back to go to the previous pane; click Refresh to refresh the widget.

    Note:

    If you reload the app without clicking Refresh, the features are still present in the underlying feature layer. You will need to use another widget, such as the Edit widget, to remove the remaining features.

  2. Say you're a planner at a gas utility who wants to know the estimated cost to extend gas service to a new community located at Cortez Ct, Naperville, Illinois, 60563. Use the feature template picker and choose Plastic PVC main, and sketch in the yellow path. The result shows the cost to install the mainline gas pipe is more than $2 million.

    Choose Plastic PVC

  3. Since you're extending a new service to the area, you need to increase the capacity servicing this new extension. Select Plastic PVC pipe and click the Feature Mode button Feature Mode. Select the mainline just northeast of the new extension.

    Mainline on the northeast selected

  4. Copy over all the selected features or uncheck the features you don't want to copy. Determine how you want the features to be copied by choosing to create individual features or a single multigeometry feature. The results are copied to the Plastic PVC feature in the current cost project.

    Results copied to the Plastic PVC feature

    The newly copied feature is now included in your costing project, and the total cost of the project has increased to $3.2 million.

  5. This design qualifies for a discount. To determine how much money this will save the project, click the Asset Items arrow.

    Asset Items arrow

    A detailed view of the cost items appears that allows you to edit the cost equation.

  6. Expand Pipe.
  7. Click the Summation button on the right.

    Expand Pipe and click the Summation button.

    A window appears where you can override the cost equation that was initially set up for this layer.

  8. Change the value from {MEASURE} * 100 to {MEASURE} * 900 to reflect the $100 discount, and click OK.

    New cost equation

    You now see the new cost of the mainline pipe and the new cost of the entire design.

    Total cost for mainline pipe

    The total cost decreased from $3.2 million to $2.9 million. You're finished with this estimation and can now share the results with the project manager to discuss the next steps.