transform

how to invert transform a UIView?

Hi all, I am using core-plot library to draw a bar-chart on my iPhone application and the problem arises when I try to add a label or some other views to the graph, Actually the view I added is drawn vertically invert like this ........ The code is like UILabel *lbl= [[UILabel alloc] initWithFrame:CGRectMake(250, 90, 70, 25)]; [...

Merge two XML and then transform the merged xml

Hi, I'm working on a XSLT transformation that consists on merging two XML and then transform the result using another template. The idea is that depending on a field of the original XML file, the secong XML changes. For example: <?xml version="1.0" encoding="UTF-8"?> <data> <information> <stmtinfo> <type>80</type> <language>...

When is XSLT an appropriate solution for defining XML transforms instead of using a scripting language like Python?

When is XSLT an appropriate solution for defining XML transforms instead of using a scripting language like Python? ...

Simple mechanism to transform dataobjects into HTML in ASP.Net.

Hello. I am looking for a mechanism to transform dataobjects into HTML. The elements in the dataobject are of both, simple and complex types. I have tried playing with HtmlTextWriter for rendering but got stuck with complex types. Mine is an ASP.Net website project. I have to avoid using server side controls (and therefore do away wit...

WPF transform confusion

I Have a canvas full of objects that I zoom and pan using this.source = VisualTreeHelper.GetChild(this, 0) as FrameworkElement; this.zoomTransform = new ScaleTransform(); this.transformGroup = new TransformGroup(); this.transformGroup.Children.Add(this.zoomTransform); this.transformGroup.Children....

How to Ignore Tranform for Fill Object in Shape (Silverlight)?

I have a Rectangle Shape in Silverlight that is rotated 15 degrees. It is filled with an image. The normal behavior of SL is to rotate the Fill object with it's parent (the rectangle, in this case). Is there any way to ignore the transform effect for the Fill object? I'd like the image to continue to point north on the screen. Here's th...

OpenGL Rotations around World Origin when they should be around Local Origin

I'm implementing a simple camera system in OpenGL. I set up gluPerspective under the projection matrix and then use gluLookAt on the ModelView matrix. After this I have my main render loop which checks for keyboard events and, if any of the arrow keys are pressed, modifies angular and forward speeds (I only rotate through the y axis and ...

transform single channel of BitmapData object

I have a BitmapData object with an alpha channel. I'd like to know the fastet way to offset that alpha channel in ActionScript3 (FlashPlayer10). By offsetting I mean shifting all pixels of that channel in one direction (wrapping around the image borders) while leaving the color channels as they were. Is there a good way to apply a such ...

TranslatePoint within a Canvas

I have a scroll viewer in my application that contains a canvas, in which I have a tree custom-drawn tree structure. I'm trying to get the position of a particular node element in the canvas relative to the scroll viewer (so I can scroll to it), but my attempts aren't working. I've tried using marker.TranslatePoint(new Point(0, 0), scro...

Flex container transform matrix problems

I have a Box container that has a label element inside it. When the box is transformed using a Matrix the label element is not visible anymore. How do I make the elements visible? <mx:Script> <![CDATA[ private function onBoxClick(event:MouseEvent):void { var transformMatrix:Matrix = this.box.transform....

Ignore name space with t: prefix

We have XML file like below... <?xml version='1.0'?> <T0020 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.safersys.org/namespaces/T0020V1 T0020V1.xsd" xmlns="http://www.safersys.org/namespaces/T0020V1"&gt; <IRP_ACCOUNT> <IRP_CARRIER_ID_NUMBER>1213561</IRP_CARRIER_ID_NUMBER> ...

Drawing abstract canvas

I'm planning to write a diagram editor-style application, where you organize objects on a canvas. This application will need to support setting viewport, zooming, cropping and a lot of other standard features of such a graph style application. I'm looking for toolkits or frameworks which could supports drawing in a standard mathematical ...

Operational Transformation library?

I'm looking for a library that would allow me to synchronize text in real-time between multiple users (ala Google Docs). I've stumbled upon Operational Transformation, which seems to fit my needs. Having said that, I understand the gist of OT, but not the math nor implementation of OT. Thus, I was wondering if there was a drag'n'drop J...

Multiple ordered translate / scale transforms in GDI+

I have a number of graphics objects which I am plotting in a graphics context in a windows forms application. There is some interaction with the ui element in which the paths are rendered which allows the user to pan, zoom and set an origin for the zoom point. The question I have is, is it possible to set up a sequence of transform opera...

Calculating the center of rotation after translation

I need to be able to rotate an image around a given point so that what ever part of the image appears in the center of my container is the center of rotation. To calculate the center points, I am currently just taking the inverse of the translation applied to the image: Rotate.CenterX = Translate.X * -1; Rotate.CenterY = Translate.Y * ...

Decompose a WPF MatrixTransform

Is there a way to decompose a MatrixTransform in WPF in order to remove certain transformations? I'm rendering an adorner on an item which is the child of a ViewBox. For testing purposes the adorner draws a box around the item. Let's say I draw the following: protected override void OnRender(DrawingContext drawingContext) { Rect a...

How to Transform XML with XSLT using PHP in Wordpress

Right now I transform an XML document with an XSLT stylesheet using Javascript (in a Wordpress-based website). This works fine in Firefox and Chrome, but not in IE. Plus, if Javascript is not enabled, nothing would show up. So, my goal is to do the XML/XSLT transformation to XHTML on the server, not the client, preferably using PHP. I'...

Using the 4x4 Matrix3D from flash10 for non-affine 2D transforms

Hi! I've been having a very tiresome time when using flash10's Matrix3D class for 2D non-affine transformations. Basically, I have a square in a sprite and four points that form a quadrilateral, and I want to apply a transformation to the sprite to make those points the vertices of the sprite. There wouldn't be much problem solving thi...

How to detect element transformation type (scale, move, rotate) for rotated elements depending on cursor position?

The situation I've written the following method (in actionscript 3, it's a flash application) which returns what transformation type is required for the current mouse position in relation to a given element position. An element can be moved, scaled and rotated. This method returns if any of these transformations are applicable with the...

WPF Set Transform in Storyboard Completed Event

Hi there, I have a Storyboard which animates the Y-Coordinate of a Grid via TranslateTransform. Within the Completed-Event of the Storyboard I want to reset the Coordinate. How do I implement this? ...