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Posted by SorinMStamate on 11/07/2017

The unit of the chart

The unit of the chart
The unit of the chart

The unit of the chart.

The unit of the chart is the length of an equatorial mile expressed in millimetres.

The basic element used to build a map in Mercator projection is the unit-of-the-chart. (mai mult…)

Posted by SorinMStamate on 30/06/2017

Rhumb line in the Mercator projection

Rhumb line in the Mercator projection
Rhumb line in the Mercator projection

Rhumb line in the Mercator projection

The Mercator projection is a plane conformal projection and is not perspective.

This projection is the most often use in navigation. (mai mult…)

Posted by SorinMStamate on 20/06/2017

Variation of the chart scale in the Mercator projection

Variation of the chart scale
Variation of the chart scale

The variation of the chart scale in the Mercator projection

In the Mercator projection, the chart scale varies, increasing proportionally with (sec ϕ) from the Equator to the poles. (mai mult…)

Posted by SorinMStamate on 10/06/2017

Difference of meridional parts or Meridional difference

difference-of-meridional-parts-or-meridional-difference
difference-of-meridional-parts-or-meridional-difference

Difference of Meridional Parts or Meridional Difference.

The Difference of meridional parts or Meridional difference (Δϕc): It’s the distance measured on the meridian between two parallels of a Mercator projection. Or, the difference between the meridional parts of any two given parallels. (mai mult…)

Posted by SorinMStamate on 30/05/2017

Meridional Parts

Meridional Parts
Meridional Parts

Meridional Parts

Meridional Parts (or Increased Latitude): It is the length of the arc of meridian in the Mercator projection, comprised between the Equator and the considered latitude and expressed in minutes of Equator. Noted with (ϕc) or (M). (mai mult…)