Spatial Manager Desktop™ - FAQs: Selecting and filtering

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Contents

Introduction

  • Objective of this section
    • To practice with the selection of spatial features using several methods for designation over the Map and in the data grid and to conduct combined selections or selections resulting from queries
  • Topics in this section
    • Selecting over the Map: single selection or selecting by areas
    • Selecting a full Layer
    • Selecting on the data grid: control over the columns and information on selecting
    • Querying and filtering: selecting features by querying their data and filtering by Layers
    • Other functions: adding and removing features from the selection (CTRL), inverting the selection, deselecting all features (ESC) and selection properties


How can I select Features of a Map?

There are multiple methods to select Features in Spatial Manager Desktop™

  • Graphical selections in the Map
    • Single selection: by clicking on a Feature in the Map
    • Rectangular selection:
      • By dragging the cursor left to right over the Map to define a rectangle (blue) and selecting all Features completely included in this rectangle
      • By dragging the cursor right to left over the Map to define a rectangle (green) and selecting all Features completely or partially included in this rectangle
    • Radius selection:
      • By dragging the cursor left to right over the Map to define a circle (blue) and selecting all Features completely included in this circle
      • By dragging the cursor right to left over the Map to define a circle (green) and selecting all Features completely or partially included in this circle
    • Polygonal area selection: by defining a polygonal area in the Map; to finish this area definition you must double-click over the last vertex of the polygon. In "Options\Workspaces" you can configure if you want to select all Features completely included (Contains) in this area, or select all Features completely or partially included (Intersects) in this area


Select Tools


'Select by area' method in 'Options'


  • Select a whole Layer
    • You can select all the Features in the selected Layer by using the "Select" function in the "Layers" ribbon. You can also perform this operation from the Data Grid right-click menu


Select all Features in a Layer


Select all Features in a Layer from the Data grid


  • Selection queries
    • You can select Features in a Layer (or in all Layers) by querying their data. You can define simple or complex queries by choosing the "or"/"and" operators and you can apply the query to all the Features in the Layer (or in all Layers) or to the current selection only. As you will see below the option "Keep current selection" allows you add the Features resulting from the query to the current selection. You cannot choose the option "Apply to current selection" if you choose "Keep current selection" and viceversa
      • You can choose and search (...) among the available values for a Field
      • The function keeps the list of query conditions used the last time it was executed
      • If there are no results during a query, the function window is shown again and keeping the list of query conditions
      • You can use the Clean button (the "broom") to remove all query conditions from the list


Selecting by queries


  • Data grid selection
    • You can select a row in the Data grid by clicking on this row. If you want to add rows to the selection you can use the CTRL or SHIFT keys


Select Features in the 'Data grid'


  • Notes:
    • When you apply any graphical selection method, you can control the Data grid behaviour in "Options\Workspaces" and in the "Selection\Tools" ribbon
    • When you apply query or Data grid selection methods, you can control the Map view behaviour also in "Options\Workspaces" and in the "Selection\Tools" ribbon


'Auto-scroll the grid' option


'Auto-zoom the Map' option


Previous options in the ribbon


How can I add/remove Features to/from a selection?

  • To add Features to a selection in Spatial Manager Desktop™
    • Press CTRL key when you use any graphical selection method
    • Press CTRL or SHIFT keys when you click on rows in the Data grid
    • Click the option "Keep current selection" when you perform a "Selection by query" (you can find also this option when performing "Spatial queries" - "Standard" and "Professional" editions only). As you can see above the option "Apply to current selection" allows you apply a query only to the selected Features. You cannot choose the option "Keep current selection" if you choose "Apply to current selection" and viceversa
  • To remove Features from a selection in Spatial Manager Desktop™
    • Press CTRL key when you click on a Feature in the Map
    • Press CTRL key when you click on a row in the Data grid


Adding Features to the current selection when Selecting by Query


How can I invert a selection?

To invert a selection in Spatial Manager Desktop™ you must use the "Invert" function, so you will get selected all Features not selected previously in the Map and vice versa. You can also use the Data grid right-click menu to invert a selection


Invert the selection Tool


Invert the selection in the Data grid


How can I deselect all the selected Features?

There are four methods to deselect all selected Features in Spatial Manager Desktop™

  • Press the ESC key
  • Click anywhere empty in the Map
  • Use the "Deselect" function
    • You can also access this function from the Data grid right-click menu


Deselecting the selected Features


Deselecting from the Data grid


How can I filter selections by Layer?

You can use two ways to filter selections by Layer in Spatial Manager Desktop™

  • By setting the "Layer scope" parameter in "Options\Workspaces", so the graphical selections will apply to all Layers in the Map or to selected Layer only
  • Use the function "Restrict to layer", to limit only to a Layer in the current selection. You can also use this function to find out how much Features are now selected in every Layer of a selection


'Layer Scope' option


Restrict the selected Features to a Layer only


Can I get some information about a selection?

Yes, you can find data about a selection in the "Properties" panel of Spatial Manager Desktop™. If you do not see this information in the "Properties" panel when some Features are selected, set the focus of the application in the Workspace by clicking on the tab of the Workspace


Selection Properties


In addition, at the bottom of the Data grid, you will see this information:

  • How many Features are selected in the selected Layer of the Total number of Features included in the selected Layer
  • How many Features are selected in others Layers and the number of Layers including any Features selected


Selection basic data in the 'Data grid'


How can I "navigate" through the selected Features in the Data grid?

To "navigate" through the selected Features in the Data grid in Spatial Manager Desktop™, you can use the bottom arrows in the Data grid to go to the next, previous, first or last Feature in the grid


'Data grid' Navigate buttons


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