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TranslateItemScaleFactor Method (ImageViewer)
Summary
Translates an item horizontally or vertically a given amount of pixels regardless of the current zoom value.
Syntax
public void TranslateItemScaleFactor(ImageViewerItem item,double dx,double dy,bool resetValues)
Public Sub TranslateItemScaleFactor(ByVal item As ImageViewerItem,ByVal dx As Double,ByVal dy As Double,ByVal resetValues As Boolean)
public:void TranslateItemScaleFactor(ImageViewerItem^ item,double dx,double dy,bool resetValues)
Parameters
item
The item to translate. This parameter cannot be null.
dx
Number of pixels to translate the item horizontally.
dy
Number of pixels to translate the item vertically.
resetValues
true to reset the item state transformations, otherwise; false.
Remarks
This is a helper method to quickly transform an item a specified amount of pixels regardless of the current zoom value.
Example
This example will add a few items to the ImageViewer and then create a new interactive mode that transform the item using mouse or touch.
Run the demo. Click on any item and drag to translate, CTRL-click to zoom the item in and out.
Start with the ImageViewer example, remove all the code inside the example function (search for the "// TODO: add example code here" comment) and insert the following code:
C#
VB
using Leadtools;using Leadtools.Controls;using Leadtools.Codecs;using Leadtools.Drawing;using LeadtoolsExamples.Common;using Leadtools.ImageProcessing;using Leadtools.ImageProcessing.Color;public void ImageViewerTranslateItemScaleFactor_Example(int dx, int dy){if (dx == 0 && dy == 0)return;_imageViewer.TranslateItemScaleFactor(_imageViewer.ActiveItem, -dx, -dy, true);}
Imports LeadtoolsImports Leadtools.ControlsImports Leadtools.CodecsImports Leadtools.DrawingImports Leadtools.ImageProcessingImports Leadtools.ImageProcessing.ColorImports LeadtoolsControlsExamples.LeadtoolsExamples.CommonPublic Sub ImageViewerTranslateItemScaleFactor_Example(ByVal dx As Integer, ByVal dy As Integer)If dx = 0 AndAlso dy = 0 ThenReturnEnd If_imageViewer.TranslateItemScaleFactor(_imageViewer.ActiveItem, -dx, -dy, True)End Sub
Requirements
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© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
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