GPU Accelerated Canvas Library
 

mapClipToElement Library Method

Short Description: Clips the currently mapped texture to the size of the animated object

Signature: t.mapClipToElement (pos,overflow)
Group: Texture
Class: transition Class
 

Clips the currently mapped texture to the size of the animated object.

If the size of the animated object is changed e.g. using resize, hvec, or wvec the texture image is normally resized as well. Also if the image of one HTML is mapped on another element, the image is normally resized to fit. Sometimes, however, resizing is not desired. Then as an alternative it is possible to clip the texture image in a way that no resizing is required. Clipping avoids shrinking of the texture image at the expense of just showing part of the image.

mapClipToElement can be called e.g. after a shrinking resize and then will clip the texture image in a way that no resizing is required. It can also be called e.g. after mapActor to clip the mapped image in a way that no resizing is required.

The parameters pos and overflow have the same meaning as with mapClip.

This is a test div with id="testdiv" for the samples below

Examples

var a=taccgl.actor("testimg"); a.resize(a.w/2,a.h).mapClipToElement("tl").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("testimg").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("testimg").mapClipToElement("bl").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("testimg").mapClipToElement("br").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("testimg").mapClipToElement("br","r").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("testimg").mapClipToElement("t").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("testimg").mapClipToElement("b").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("testimg").mapClipToElement("r").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("logoimg").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("logoimg").mapClipToElement("bl").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("logoimg").mapClipToElement("br","r").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("logoimg").mapClipToElement("br","b").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("logoimg").mapClipToElement("tl","br").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("logoimg").mapClipToElement("br","br").start(); RUN
var a=taccgl.actor("testdiv"); a.mapActor("logoimg").mapClipToElement("tr","br").start(); RUN
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