floaterTransform Property (ImageViewerItem)
Summary
Transformation matrix used by the floater image of this item.
Syntax
JavaScript Syntax
Object.defineProperty(ImageViewerItem.prototype, 'floaterTransform',get: function(),set: function(value))
TypeScript Syntax
floaterTransform: LeadMatrix;Property Value
The transformation matrix used by the floater image of this item. Default value is Identity.
Remarks
Use this transform to translate, scale or rotate the floater image. ImageViewerFloaterInteractiveMode will update this value when the user clicks and drags on the floater image.
Changing the value of this property will fire the ItemChanged event with ImageViewerItemChangedReason.FloaterTransform.
Example
JavaScript Example
var item = null;var image = null;if (this._imageViewer.items.count > 0) {item = this._imageViewer.items.item(0);canvas = item.canvas;}if (canvas == null)return;if (item.floater == null) {var ctx = canvas.getContext("2d");var imageData = ctx.getImageData(10, 10, item.size.width / 2, item.size.height / 2);item.floater = document.createElement("canvas");var ctx = item.floater.getContext("2d");ctx.putImageData(imageData, imageData.width, imageData.height);var transform = lt.LeadMatrix.identity;transform.translate(-50, -50);item.floaterTransform = lt.LeadMatrix.multiply(transform, item.floaterTransform);}else {var floater = item.floater;var transform = item.floaterTransform;transform.translate(0, 100);item.floaterTransform = lt.LeadMatrix.multiply(transform, item.floaterTransform);}
Requirements
Products | Support | Contact Us | Copyright Notices
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
Leadtools.Controls Assembly
