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Chart window

The chart fills the window and the controls float in the corners. Everything between them is chart: a drag there pans, even close to a button.

The chart window on macOS

Reading the numbers along the bottom​

The readout capsule

  • Band. The kind of chart you are on: Berthing, Harbor, Approach, Coastal, General or Overview.
  • Scale, in blue. Click it to go to a scale.
  • Zoom. How far in you are. It is finer than the scale, and it is the quick way to return to the same view twice.
  • Position. Under the pointer while you hover, otherwise the centre of the view. A touch screen has nothing to hover with, so a tablet and a phone always state the centre.
  • Overscale, in amber. The chart is magnified past its survey. ×1.4 means you are looking 1.4 times closer than the data supports. What you see is larger, not more accurate.

A phone hides the band and sets the type smaller. Position and scale always stay.

Using the corner buttons​

The zoom and settings bubbles

  • Search, top left. Go to a position.
  • North, top right. It points north as you turn the chart. Click it to square the chart up again.
  • Plus and minus, bottom right. One zoom step about the centre.
  • Gear, bottom right. Mariner settings.

Judging distance with the scale bar​

The scale bar

A round distance at the current scale, in the bottom left corner.

Identifying a feature​

Click or tap a feature. The report lists each object under the cursor and the chart cell it came from.

Waiting while the chart loads​

The first start prepares the chart symbols and takes a few seconds. Later starts skip that work. While a library opens, the app states what it is doing.

When you pan into new water, a small pill appears at the top. The chart stays live while the new area fills in.