TImageEnVect.SetScaleFromSelectionLen

Declaration

procedure SetScaleFromSelectionLen(mm: double);

Description

SetScaleFromSelectionLen makes the perimeter of the selection region correspond to one mm (MUnit) by changing ScaleFactor property.

Example

// This computes scalefactor so that the length of the current selection measures 5 millimeters.
TImageEnVect1.MUnit := ieuMillimeters;
TImageEnVect1.SetScaleFromSelectionLen(5);

Transition Information

If you are transitioning your code to TImageEnView Layers, instead of SetScaleFromSelectionLen, use: SetScale

ImageEnView1.SetScale( ImageEnView1.SelectedRect.Width, 1, ImageEnView1.SelectedRect.Height, 1, ieuInches );

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