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Measuring Tool

All tutorial data is being used from http://gisdata.eddmaps.org/apps/demo

To follow along with the tutorials, feel free to use that web address to gain access to the online

demo.

The information in the demo map is being provided for demonstration purposes

only and does not constitute real data pertaining to

noxious weeds. The data cannot be considered reliable

and cannot be used for on the ground weed management decisions.

ALL RIGHTS RESERVED | EDDMAPS.ORG

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Measuring

Measure

Tool

There are 3 ways you can measure features on the map:

Area, Line Length, and X/Y coordinates.

To get started click on the "Measure Tool" in the bottom toolbar.

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1. Calculate Area

Measure

Panel

This opens the "Measure" panel and gives you 3 different tools for measuring.

To calculate the area we will be using the first tool.

Calculate

Area

Select the unit of measurement "Acres".

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Calculate

Area

Start by drawing a polygon around the area you want to measure.

As you draw notice the Measurement Results are being updated.

Calculate

Area

Double click your polygon to close the shape.

Notice the total area is calculated in acres. We will change the unit of measurement in the next step.

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Change

Measurement

Hold down the arrow and select Sq Meters instead of Acres.

Change

Measurement

Notice how our area being measured is now calculated in meters versus acres.

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2. Calculate Length

Measuring

Length

Click on the Length tool to measure the length of a line feature.

Measure

Line

Click on the map and then draw a line to the next spot. Double click the line to quit drawing.

Notice the Measurement Results are in miles and are calculated instantly.

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Measure

Length

To measure multiple line segments (polyline) click on the map every place you need a vertices but

continue to draw on the map.

Double click to finish the drawing.

Change

Units

Change the unit of measurement by clicking on the arrow and selecting a different unit.

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3. X/Y Coordinates

X/Y

Coordinates

To calculate the x/y coordinate of a point on the map select the Location tool.

Location

Tool

Next click anywhere on the map to get the x/y coordinate of that point.

Notice that just by moving the mouse across the map, the coordinates are being updated on the top row.

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Change

Coordinates

You can change the Coordinate Units from Decimal Degrees to Degree Minute Seconds by selecting it

from the list. The units are changed instantly.

X/Y

Coordinates

Continue clicking on any point on the map to get the X/Y Coordinates.

Close the Measure Panel by clicking on the top "X" when you are done.