Filtering Functions

The basic idea of Karttahimmeli is to share a lot of information. Sometimes too much information can be confusing, so different views of the map markings are needed in different situations. For this reason, Karttahimmeli has various filtering functions.

Route Tail Length

The shared location starts drawing the tail of the traveled route on the map. Everything is saved to the service, but by default, only a 30-minute history is displayed on the screen. The length of the tail visible on your device can be changed from the tail selector on the top left. The options are 0-10-30-60 minutes, as well as 4h, 12h, and seven days.

In a password-protected operation, the tail length can be up to 90 days.

The selected tail length also affects the calculation of the patrol's progress speed and distance shown in the location pop-ups and observation diary. The short default tail should be kept in mind if you are making a specific length of track and checking the distance from the pop-up or if you are returning to the same areas in the field where you have been before. In this case, it is advisable to select a tail length of, for example, 12 hours.

Filtering Observations

The "Diary" has its own tab for observations. By default, the list shows all point observations. Filtering the list also filters the points visible on the map.

You can change the order of the list by clicking the columns in the header row.

Observations can be filtered most easily by setting a minimum level for the importance of the observation. The purpose of this is to allow, for example, the command to focus only on essential markings and allow patrols to mark location points on the map with a low threshold using lower importance levels.

Another way to filter observations is text-based filtering. Observation filtering works in an AND manner, i.e., it narrows down. For example, you can search for a specific patrol's object observations by typing, for example, "Foot-3 object". There is no difference between uppercase and lowercase letters in the filter.

Text-based filtering on the map works so that the filter only hides the points that have been filtered out of the list. So if you hide the list for a while and a new point appears on the map, it will be shown on the map until you check the filter in the list. The filter condition is only checked when the list is visible.

The idea behind this is that when starting a task in the field, it may be necessary to filter out markings from neighboring areas. However, if new markings appear in the neighboring area, they may be important, and therefore the marking is shown.

Also, the dates, times, additional information, and types of observations can be filtered using the search.

By clicking the observation row, the map focuses on the selected observation.

Filtering Patrols

With patrol filtering, you can filter the number of patrols visible on the map. Note that the patrols visible in the list are affected by the selected route tail length.

The filtering is OR-type, meaning you can select multiple patrols to be visible by filtering, for example, "Dog-3 Foot-5". There is no difference between uppercase and lowercase letters in the filter.

To make filtering effective and functional, it is recommended that patrol names are systematically named. D-1, D-2, D3 are difficult to filter because the filter text "D" shows not only all D-prefixed patrols but also the patrol fooD-7.

A functional way is, for example, Foot-3/tk, i.e., a slightly longer patrol identifier, a number, and the patrol member's initials after a slash. This way, all members of the FOOT-3 patrol can be easily displayed individually and together.

By clicking the patrol name, the map focuses on the last location of the selected patrol. By clicking the square-circle icon in front of the patrol name, the map starts following the location of the selected patrol.

The filter also works with dates and times.

Filtering Areas

With the area filter, you can clean up the area drawings visible on the map. By typing the search term "active", you will only see active search areas/blocks on the map.

On a large screen, there is also a pencil icon next to the area name, which allows you to directly edit the area's information.

By clicking the area row, the area is displayed on the map.