This document teaches the user the selection options in the attribute tables of the layers.

Admin 10.03.2020 Category : WEB GIS Education Documents

In GISLayer Software, separate selections are made by holding down the CTRL key and clicking with the mouse in the first column of the layer attriubute table, which shows the sequence number of the geometry (CTRL + mouse-left-click). Likewise, the selection is cancelled when the sequence number of the selected geometry is clicked.

If you click on the Selection menu, you will be presented with 7 different options.

These are;

  1. Select All
  2. Clear All Selections
  3. Select Filtered
  4. Show Selected
  5. Show All
  6. Swich Selection
  7. Spatial Selection

The locations of these tools are shown in the screenshot below.

Selections In Attribute Table

1.Selection: Select All

Select all: Selects all records in the table

An example of the Select All is shown in the screenshot below.

Selections In Attribute Table

2. Clear All Selections

Clear All Selections Cancels all existing selections.

An example of the Clear All Selections is shown in the screenshot below.

Selections In Attribute Table

3. Select Filtered

Select Filtered When filtering is performed; the records are selected in the filter result.

In the image below, a sample example has been made by filtering the "building" and clicking on the Select Filtered option.

Selections In Attribute Table

4. Show Selected

Show Selected: Shows all records selected in the table.

An example of the Show Selected is shown in the screenshot below.

Selections In Attribute Table

5. Show All

Show All option lists all geometries within the layer.

6. Switch Selection

Switch Selection: Clears selection and selects unselected geometies in the table.

For example, if you want to select the selected ones in the list but not the ones selected, the selection can be made by clicking the Swich Selection option. An example has been made for example in the image below.

Selections In Attribute Table

7. Spatial Selection

Spatial Selection: Activates the spatial selection within the layer whose attributes are listed, as shown earlier in the Edit menu,

  1. Select by Click
  2. Select Intersections: Select geometries that intersect with a drawn Line
  3. Select Within: Select all geometries within the drawn Polygon
  4. Close Selection Action: Closes the action panel

The scrdeenshot below shows an example these options.

Selections In Attribute Table

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