A GLOBE-ATLAS AND A WORKING-METHOD

Abstract: Invented is the following working-method. By a regular 12- plane (12 regular pentagons built together) the globe is divided into 12 fitting together surfaces with the same surrounding circles: 2 pole circles and 2 rows of 5 circles, which fit zigzag. One constructs on this manner on the globe between 2 same pole circles 3 rows of 12 (or 10 or 9) equal circles of which the intersections appoint fitting together surfaces (of 30` wide). See figure. The middle row which is laying over the tropics, fits zigzag, so 15` turned. These surfaces are projected through a point on a distance of +/- 2 x the radius from their middles in such a way that there is the least deformation. Projected is the interior surface. One can also project the outer surface on the same manner through a very large symmetric lens. So the camera may have no lens. One can draw a check-partition on the globe-surfaces for surveying the deformation on projection. Invented are so 2 twelve angular (or 10 or 9) pole-maps, 24 pentagonal maps and 12 hexagonal tropic maps of 30` wide. The divisions between the rows of maps lay on +/- 65` and 20`.

Description: A globe-atlas and a working-method. 'he invention concerns a world-atlas. The aim is approximating the total survey of a globe: a globe-atlas. This is reached by a little number of same maps, whereof the defor¬ mation is as little as possible. Invented is the following working-method. By a regular 12-plane (12 regular pentagons built together) the globe is divided into 12 fitting together surfaces with the same surrounding circles: 2 pole circles and 2 rows of circles, which fit zdgzrag. One constructs on this manner on the globe between 2 same pole cir- cles 3 rows of 12 (or 10 or 9) equal circles of which the intersec¬ tions appoint fitting together surfaces (of 30 wide). See figure. The middle row,, which is laying over the tropics, fits zdgzag, so 15 turned. These surfaces have the same scale and deformation on projection. These surfaces are projected through a point on a distance of + , 2 x the radius from their middles in such a way that there isthe least deformation. Projected is the interior surface. One can also pro¬ ject the outer surface on the same manner .through a very large sym¬ metric lens. So the camera may have no lens. Through this projection arises a minimum deformation. One can draw a check-partition on the globe-surfaces for surveying the deformation on projection. Invented are so 2 twelve-angular (or 10 or 9) pole maps, 24 penta¬ gonal maps and 12 hexagonal tropic maps of 30 wide. E.g. of a format of + 60 x 40 cm by a scale of 1 : 8.000.000. This maps are easy to lay next to each other. The divisions between the rows of maps lay on + 65 and 21 . 21 M.L. is a good dividing line, the tropics form one row and 21 S.L. is a good closing. N.L. gives a high survey. The surrounding circle becomes only +.50 , so there islittle defor¬ mation. The great advantage of this world-atlas is that it shows the situ¬ ation on the globe and the right proportions. OMPl ' 4i£j? NAT iq$y

Claims: Claims . 1. A.world-atlas with as mark: the total globe is represented by 2 twelve-angular (or 10 or 9) pole maps, 24 pentagonal maps an 12 hexagonal tropic maps with the same surrounding circles and fitting together. The maps are 30 wide and laying between 6 and 21 . According to the subjoined working-method. 2. A working-method with as mark: one constructs on the globe be¬ tween 2 same pole circles 3 rows of 12 : " (or 10 or 9) equal cir¬ cles of which the intersections appoint fitting together surfa¬ ces (of 30 wide). The middle tropic row must fit zigzag, so 15° turned. See figure. These surfaces are projected through a point on a distance of ± 2 x the radius from their middles in such a way that there is the least deformation. Projected is the interior surface. One can also project the outer surface on. the same manner through a very large symmetric lens. So the camera may have no lens. OMPI

Inventors: VISSER F
Applicants: VISSER F
Application year: 1981
Main classification: G09B29
IPC codes: G09B27, G09B29