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Posted on February 20, 2023 (Updated on July 10, 2025)

Calculate and add area of overlapping features within polygons

Hiking & Activities

How do you find the area of overlapping polygons in ArcGIS?

The area of a polygon created in ArcGIS Pro can be determined in the attribute table of the polygon in the Shape_Area field. The area of the overlap between two or more polygon layers can also be determined with the Count Overlapping Features tool or the Clip tool.
 

How do you find overlapping polygons?

On the main menu, click Customize > Toolbars > Data Reviewer. Click the Select Data Check drop-down arrow on the Data Reviewer toolbar, click the plus sign (+) next to Feature on Feature Checks, then click Polygon Overlap/Gap is Sliver Check. The Polygon Overlap/Gap is Sliver Check Properties dialog box appears.

How do you fix overlapping polygons in ArcGIS?

Removing overlaps from existing polygons

  1. Select the polygon feature whose border you want to maintain. The other polygon will be clipped back to match it.
  2. Click the Editor menu and click Clip.
  3. Set the buffer distance to 0 and choose to discard the area that intersects.
  4. Click OK.


How do you add a polygon area in ArcGIS?

Procedure

  1. Create a new number field in the attribute table of the polygon theme. Open the table and select Start Editing from the Table menu. Select Add Field from the Edit menu.
  2. Populate the new field with area values. Note: ArcView calculates the area in the same units used to store the polygons in the shapefile.

 

How do you find overlapping area?

Quote from video: The rectangle has an area equal to two times one which is equal to two two of these triangles will have an area equal to three over four multiplied by one which is equal to three over.

What is the formula for calculating overlap?

Overlap = min(A2, B2) – max(A1, B1) + 1. In other words, the overlap of two integer intervals is a difference between the minimum value of the two upper boundaries and the maximum value of the two lower boundaries, plus 1.
 

How do you find the area of two overlapping rectangles?

We basically add areas of two rectangles. This includes the intersecting part twice, so we subtract the area of intersecting part. Similarly, we can compute area of 2nd rectangle. If the x_distance or y_distance is negative, then the two rectangles do not intersect.
 

How do you solve overlapping events?

For two overlapping events A and B, the probability that either of the events occurs is the sum of the probabilities of the events, minus the probability that both events occur. P(A or B) = P(A) + P(B) – P(A and B) Events A and B are overlapping.

How do you select overlapping features in Arcgis?

Select a feature from overlapping features

  1. On the Map tab, in the Selection group, click the Select drop-down menu and click Select By Rectangle .
  2. Click the map to select a feature.
  3. Click the button to cycle through the choices.
  4. Click the arrow to view a list of the features from which you can select.

How do you find the area of an overlapping rectangle?

We basically add areas of two rectangles. This includes the intersecting part twice, so we subtract the area of intersecting part. Similarly, we can compute area of 2nd rectangle. If the x_distance or y_distance is negative, then the two rectangles do not intersect.
 

How do you find the area of other polygons?

Quote from video: The area of a polygon is one-half times the perimeter.

How do you find the area of an irregular polygon using area?

To find the area of an irregular shape, we first break the shape into common shapes. Then we find the area of each shape and add them. For example, if an irregular polygon is made up of a square and a triangle, then: Area of irregular polygon = Area of Square + Area of Triangle.

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