kylania
04-01-10, 09:13 PM
It occurred to me that some new players might not understand all the map tools and how they work. So... this is it! :)
The Navigation Map ('m' by default) and the TAI ('Tab' by default) give you access to five map tools and the tool helper. The tools are: Compass, Marker, Ruler, Eraser, Protractor. There's also the Tool helper. Here are what each of the tool icons looks like:
http://img718.imageshack.us/img718/1682/compassicon.jpg http://img21.imageshack.us/img21/3852/markericon.jpghttp://img42.imageshack.us/img42/4901/rulericon.jpg
http://img132.imageshack.us/img132/430/erasericon.jpghttp://img31.imageshack.us/img31/6721/protractoricon.jpg http://img14.imageshack.us/img14/945/toolhelpericon.jpg
The Tool Helper
The Tool Helper is a toggle button that changes the icon of some tools to help you get more information from their use. The Tool Helper is ON when it's icon is colored gold as show above. Here you can see the Ruler tool first with Tool helper OFF then following that with it ON, where you can see the bearing tool attached to it's icon.
http://img693.imageshack.us/img693/35/rulertoolhelperoff.jpg Ruler Tool with Tool Helper OFF
http://img145.imageshack.us/img145/8624/rulertoolhelperon.jpg Ruler with Tool Helper ON
The Compass Tool
The compass tool is pretty easy to use, click where you want the middle of a circle to be and drag out to the desired radius of the circle. This is good for things like checking range around your boat, or for checking how far in whatever direction a ship might have moved.
http://img243.imageshack.us/img243/4049/compassexample.jpg
A compass with a 500m radius. From the middle to an edge is 500m from edge to edge across the circle is 1km.
The Marker Tool & The Eraser Tool
The marker tool is extremely simple. Click where you want an "X". It's good for marking known positions of a ship, which will be important in a later example.
The eraser tool is good for cleaning up marks that you no longer want. To use it simply hover over an existing mark till it shows up red, then click to erase it.
http://img18.imageshack.us/img18/8790/eraserexample.jpg
The Ruler Tool
The ruler tool is good for finding distances and plotting courses of targets. To use it click where you want the line to start and drag it to where you want it to end. The tool helper icon for the ruler is a bearing rose with 180° at the top. This can be used to find the true bearing of a line by drawing the line and reading the number where it "exits" the bearing rose.
Lets say we've marked the position of a ship at two different points in time with the Marker tool. We can measure the distance between those points with the ruler and at the same time get the ship's course. In the example below you'll see that from the top marker to the lower marker the distance is 400m. You'll also see that the line "exits" the bearing rose at 110°. If those marks were placed 3 minutes and 15 seconds from each other you'd know three vital pieces of information. 1) It's position (from the mark 2) 2) it's course (110°) and 3) it's traveling at 4kts (400m traveled in 3m 15s = 400 / 100 = 4kts).
http://img363.imageshack.us/img363/2809/markerrulerspeedexample.jpg
The Protractor Tool
The Protractor tool is one of the most useful tools since he can be used for all kinds of things, one of the best being to find a relative bearing from your ship or another ship.
To find the bearing from your ship first start your protractor tool directly ahead of your boat, like this:
http://img517.imageshack.us/img517/3800/protractorfirststep.jpg
Then click and drag the line directly to your boat so it's reading 180° and click to place the anchor of your protractor angle, like this:
(Note that the protractor line has been pulled just past the boat so you can read the number, in practice you'd want it directly on the boat, zooming in so you can see the boat's silhouette to be most precise.)
http://img340.imageshack.us/img340/7915/protractorsecondstep.jpg
Then drag again away from your submarine at whatever angle you wanted to mark, like this:
http://img200.imageshack.us/img200/8453/protractorangleexample.jpg
There you can see that's a line that's at a 140° bearing from your boat. If the line is on the port (left) side of your boat however you'll need to do a little math. This next example is a bearing of 230° (360° - 130° = 230° to port).
http://img34.imageshack.us/img34/1182/protractorreverseanglee.jpg
Hopefully this has explained how to use the various tools and the tool helper to figure things out on the map!
Here are some more examples of using the Ruler Tool's "upside down" bearing rose to find a course:
http://img517.imageshack.us/img517/1628/alliecourse.jpg
The Navigation Map ('m' by default) and the TAI ('Tab' by default) give you access to five map tools and the tool helper. The tools are: Compass, Marker, Ruler, Eraser, Protractor. There's also the Tool helper. Here are what each of the tool icons looks like:
http://img718.imageshack.us/img718/1682/compassicon.jpg http://img21.imageshack.us/img21/3852/markericon.jpghttp://img42.imageshack.us/img42/4901/rulericon.jpg
http://img132.imageshack.us/img132/430/erasericon.jpghttp://img31.imageshack.us/img31/6721/protractoricon.jpg http://img14.imageshack.us/img14/945/toolhelpericon.jpg
The Tool Helper
The Tool Helper is a toggle button that changes the icon of some tools to help you get more information from their use. The Tool Helper is ON when it's icon is colored gold as show above. Here you can see the Ruler tool first with Tool helper OFF then following that with it ON, where you can see the bearing tool attached to it's icon.
http://img693.imageshack.us/img693/35/rulertoolhelperoff.jpg Ruler Tool with Tool Helper OFF
http://img145.imageshack.us/img145/8624/rulertoolhelperon.jpg Ruler with Tool Helper ON
The Compass Tool
The compass tool is pretty easy to use, click where you want the middle of a circle to be and drag out to the desired radius of the circle. This is good for things like checking range around your boat, or for checking how far in whatever direction a ship might have moved.
http://img243.imageshack.us/img243/4049/compassexample.jpg
A compass with a 500m radius. From the middle to an edge is 500m from edge to edge across the circle is 1km.
The Marker Tool & The Eraser Tool
The marker tool is extremely simple. Click where you want an "X". It's good for marking known positions of a ship, which will be important in a later example.
The eraser tool is good for cleaning up marks that you no longer want. To use it simply hover over an existing mark till it shows up red, then click to erase it.
http://img18.imageshack.us/img18/8790/eraserexample.jpg
The Ruler Tool
The ruler tool is good for finding distances and plotting courses of targets. To use it click where you want the line to start and drag it to where you want it to end. The tool helper icon for the ruler is a bearing rose with 180° at the top. This can be used to find the true bearing of a line by drawing the line and reading the number where it "exits" the bearing rose.
Lets say we've marked the position of a ship at two different points in time with the Marker tool. We can measure the distance between those points with the ruler and at the same time get the ship's course. In the example below you'll see that from the top marker to the lower marker the distance is 400m. You'll also see that the line "exits" the bearing rose at 110°. If those marks were placed 3 minutes and 15 seconds from each other you'd know three vital pieces of information. 1) It's position (from the mark 2) 2) it's course (110°) and 3) it's traveling at 4kts (400m traveled in 3m 15s = 400 / 100 = 4kts).
http://img363.imageshack.us/img363/2809/markerrulerspeedexample.jpg
The Protractor Tool
The Protractor tool is one of the most useful tools since he can be used for all kinds of things, one of the best being to find a relative bearing from your ship or another ship.
To find the bearing from your ship first start your protractor tool directly ahead of your boat, like this:
http://img517.imageshack.us/img517/3800/protractorfirststep.jpg
Then click and drag the line directly to your boat so it's reading 180° and click to place the anchor of your protractor angle, like this:
(Note that the protractor line has been pulled just past the boat so you can read the number, in practice you'd want it directly on the boat, zooming in so you can see the boat's silhouette to be most precise.)
http://img340.imageshack.us/img340/7915/protractorsecondstep.jpg
Then drag again away from your submarine at whatever angle you wanted to mark, like this:
http://img200.imageshack.us/img200/8453/protractorangleexample.jpg
There you can see that's a line that's at a 140° bearing from your boat. If the line is on the port (left) side of your boat however you'll need to do a little math. This next example is a bearing of 230° (360° - 130° = 230° to port).
http://img34.imageshack.us/img34/1182/protractorreverseanglee.jpg
Hopefully this has explained how to use the various tools and the tool helper to figure things out on the map!
Here are some more examples of using the Ruler Tool's "upside down" bearing rose to find a course:
http://img517.imageshack.us/img517/1628/alliecourse.jpg