Programs for coordinate transformations and adjustments

Coordinate and altitude transformations in Portugal

• Coordinate transformations in Continental Portugal (datum and projection)
• Calculate geoid undulation using the national model GEODPT08

Geodesy and cartography calculations

• Convert geographic coordinates to cartesian geocentric (or inverse)
• Convert geographic coordinates to local geodetic (or inverse)
• Calculate distance and azimuth between two points on the ellipsoid
• Graphic interface for PROJ.4
• 2D Adjustments: Affine, affine conformal, projective and higher order polynomials.

Photogrammetry - basic operations

• Colinearity equations - Project from ground to image (DIR) or from image to ground (INV)
• Relative orientation of a stereo pair (UNDER DEVELOPMENT)
• Absolute orientation - 3D conformal transformation (7 parameters)

ProjGridTransform

• External site developed by André Pinhal for coordinate transformations. Integrates datum and geoid.