MapWinGeoProcTransforms:Projective Derive Coefficients

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Derive_Coefficients

Syntax

Derive_Coefficients(int ImageWidth, int ImageHeight, MapWinGIS.Point ptLowerLeft, MapWinGIS.Point ptUpperLeft, MapWinGIS.Point ptUpperRight, MapWinGIS.Point ptLowerRight)

Summary

Initializes the projective coefficients. Requires that the input is a rectangular image, and the output points are the projected output values corresponding to the input image corners in the following positions: pt2 - pt3 | | pt1 - pt4 // X' = (aX + bY + c) / (gX + hY + 1) // Y' = (dX + eY + f) / (gX + hY + 1)

Parameters

ImageWidth The width of the entire original image in pixels
ImageHeight The height of the entire original image in pixels
ptLowerLeft The projected location of the lower left corner of the input image
ptUpperLeft The projected location of the upper left corner of the input image
ptUpperRight The projected location of the upper right corner of the input image
ptLowerRight The projected location of the lower right corner of the input image

Visual Basic Net 2005 Example Implementation Code
Visual C# 2005 Example Implementation Code
Back to Projective

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This page has been accessed 451 times. This page was last modified on 9 December 2006, at 01:31.