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Frančula III vs. Frančula IV

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  Frančula III Frančula IV
Creator Nedjeljko Frančula (1971) Nedjeljko Frančula (1971)
Group Lenticular Lenticular
Property Compromise Compromise
Other Names
Remarks Derived by Umbeziffern from the American Polyconic, minimized distortion by application of the Airy criterion.
For more information, refer to my blogpost The Frančula Projections or Frančula’s original paper Die vorteilhaftesten Abbildungen in der Atlaskartographie (German).
A Wanger IX variant, derived by Umbeziffern from the equatorial azimuthal equidistant projection., minimized distortion by application of the Airy criterion.
For more information, refer to my blogpost The Frančula Projections or Frančula’s original paper Die vorteilhaftesten Abbildungen in der Atlaskartographie (German).
recommended comparisons

1. Comparison: Physical Map – scaled to fit

Frančula III
Frančula III
Frančula IV
Frančula IV

2. Comparison: Silhouette Map – scaled to fit

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Grey areas: Superimposition of projections
Frančula III Silhouette Map
Frančula IV Silhouette Map

3. Comparison: Tissot Indicatrix, 30° – scaled to fit

Frančula III
Frančula III Tissot Indicatrix
Frančula IV
Frančula IV Tissot Indicatrix

4. Comparison: Physical Map – scaled to same width

Frančula III
Frančula III
Frančula IV
Frančula IV

5. Comparison: Silhouette Map – scaled to same width

Click on projection’s name to hide it
Grey areas: Superimposition of projections
Frančula III Silhouette Map
Frančula IV Silhouette Map

6. Comparison: Tissot Indicatrix, 30° – scaled to same width

Frančula III
Frančula III Tissot Indicatrix
Frančula IV
Frančula IV Tissot Indicatrix

7. Comparison: Tissot Indicatrix, 15° – scaled to fit

Frančula III
Frančula III Tissot Indicatrix
Frančula IV
Frančula IV Tissot Indicatrix

8. Comparison: Tissot Indicatrix, 15° – scaled to same width

Frančula III
Frančula III Tissot Indicatrix
Frančula IV
Frančula IV Tissot Indicatrix
 

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