Androidアプリ魚計測

When you catch a big fish while fishing, you naturally wonder how big it is, right?
But you might not have a measuring tape handy, or you might worry about getting it dirty or smelling fishy.
You often see anglers estimating the size with their fingers, saying “About how many centimeters?”
That’s where this app comes in—it lets you measure your fish’s total length using only your smartphone.
It’s not ideal for competitions where precise measurements are needed, but it’s perfect for those who just want a rough idea of the size.
If you need precise measurements, please buy a tape measure at a fishing store and measure correctly.
Using this app is simple. Just launch it, let it recognize a flat surface, then tap the fish’s head and the tip of its tail fin on the screen. You can also take screenshots.
It can measure items other than fish. Use it when some degree of error is acceptable.

The “Fish Measurement” function includes:
・Measurement (measures total length)
・Screenshot
・Various settings

● Using ARCore
This app uses ARCore, a Google platform. It only works on supported devices.
You can check supported devices at the following site. (It may also work on devices not listed on the site below.)

ARCore supported devices

● About App Permissions
This app uses the camera function. You must grant permission for the app to use the “Camera” function in the app permissions.
When you first launch the app, you will be asked, “Allow FIsh Measure to take pictures and record video?” Select “While using the app.” After that, you will not be asked again. If permission is not granted, this app will not launch.

Each screen

Main Screen (Measurement Screen)

This is the main screen that appears when you launch the app.

First, the app needs to recognize a flat surface. During recognition, a hand icon will appear on the screen. While this icon is visible, slowly move your smartphone from left to right and right to left, keeping the fish (or object) you want to measure centered within the frame. Once recognition is complete, the hand icon will disappear, and multiple white circles will appear on the screen. The area where these white circles exist is the location recognized by the app. Tapping this area will display a measuring rod. If the recognized plane is too narrow, slowly move your phone around the area you want to expand. Recognizing this area will expand the region where white circles appear.
Up to two measuring rods can be placed on the screen. Placing two rods will display the distance between them.
To measure a fish’s total length, place the first rod at the tip of the fish’s head and the second at the tip of its tail fin. The total length will then be displayed.
Tapping the label displaying the total length will show the total length in both cm and inch units at the bottom of the screen. Tapping the label again will hide the bottom display.
For large fish, holding your smartphone horizontally makes it easier to capture the entire fish.
Placed measurement sticks can be moved. Tap the measurement stick you want to move to select it (a gray circle will appear around the stick). Hold the tap and move it to the desired location. Moving the ruler automatically calculates and displays the distance between the two points.
Sometimes, when trying to move a ruler manually, your finger may overlap, preventing you from moving it precisely where you want. In this case, select “Fine Adjustment” from the menu (explained later). This displays a crosshair. Tap the ▲ in the direction you want to move to adjust the ruler incrementally. Holding down the crosshair allows continuous movement. You must select the ruler you want to move before tapping the crosshair.

Menu　
Tapping this icon allows you to control the display or hiding of the icons described below.
Exit　
Tap this icon to close the app.
Help　
Tapping this icon will display a dialog to open the Help and Privacy Policy page.
Settings　
The settings screen will appear.
Clear　
You can remove the displayed search bar, lines, and measurement distance labels from the screen.
Fine-tuning　
You can show or hide the cross keys for fine-tuning the measurement bar’s position. Select the measurement bar and tap a cross key to move it in that direction. Press and hold to move it continuously in that direction.
Screenshot　
You can save the image displayed on the screen as a JPEG file.
*Screenshots may not appear in Google Photos. If this happens, check Google Photos Help. Alternatively, launch Google Files and look under “Images” in the “Categories” section.

Settings screen

Unit　
You can set the unit of measurement for the total length. Choose either “centimeters (cm)” or “inches (inch)”.
Length of measuring stick
You can set the length of the measuring stick. Choose from 5cm, 10cm, 20cm, 30cm, or 50cm. When there’s distance to the target (like a fish), a longer stick is easier to see and tap to select.
Thickness of the measuring stick
You can set the thickness of the measurement bar. Choose from Ultra-thin, Thin, Normal, Thick, or Ultra-thick. When there’s distance to the target (like a fish), a thicker bar is easier to see and tap to select.
Color of the measuring rod　
You can set the color of the measuring rod. Choose from 15 colors. Set a color that is easy to see based on the surrounding conditions, such as at the fishing spot.
Line color　
You can set the color of the line drawn between measuring rods. Choose from 15 colors. Set a color that is easy to see based on the surrounding conditions, such as at a fishing spot.

Privacy Policy

The user information collected by this app is as follows.

(1) Advertising ID

How to obtain

The methods for acquiring user information in this application are as follows:

(1) Acquired using the standard APIs of the Android platform.

Purpose of Use

(1) Advertising ID This service uses advertising IDs for the delivery or display of advertisements. To implement such advertising, we provide user information to the following information collection module providers.

Google Analytics https://marketingplatform.google.com/about/analytics/

Firebase https://firebase.google.com/

AdMob https://admob.google.com/