Area Measurements

Eye4Software Hydromagic offers a variety of tools to calculate or measure the area covered by a sounding, map feature, or other object.
The results of an area measurement are displayed using one of the following units:

• Acres;
• Square Meters;
• Square Kilometers;
• Square Yards;
• Square Feet.

Areas are calculated by converting all coordinates of the selected area to vectors.
The calculated vectors are passed to a cross-product formula used to calculate the total area of the object measured.

Setting area units

Before performing an area measurement, make sure your preferred area units have been set!

To specify the units used for area calculation, open the 'Preferences' dialog by selecting 'Preferences...' from the 'Options' menu.
Now click on the "Units" tab. For more info on how to set units, please refer to the "Unit settings" page.

Use the 'Area Units' drop-down box to select the preferred units and click the 'OK' button to store the new setting.

Measuring the area of a map object

Areas of map objects can be calculated by selecting the corner coordinates of the polygon using the mouse.
For the most accurate results, ensure the object is zoomed in to the maximum level.

Select the 'Area' cursor tool by choosing 'Area' from the 'Cursor' menu.
Select all the corners of the object, as shown in the screenshot below:

You will notice a blue line drawn around the object.
A dialog box appears on top of the map showing the current area and perimeter of the map object.

When you have finished measuring, click the right mouse button to dismiss the dialog box,
and return to the previous mouse mode.

Video Tutorial

The following YouTube video tutorial shows how to measure area's in Hydromagic software using the built in area measurement tool. Click below to play the video. When you like the video, please click the like button and subscribe so you will receive an update when new video tutorials on Hydromagic are uploaded.

Measure areas in Hydromagic using the area measurement tool.