Construct an Image of an Elapsed Time Counter
| Returns an elapsed-seconds counter as an image. |
ImageBvr createCounterImage() {
| Convert localTime to a string and ignore fractional part. |
FontStyleBvr fs = defaultFont.color(white).bold();
ImageBvr underlyingImage = stringImage(localTime.toString(toBvr(0)),fs);
| Scale into a unit square [0,1]. Note that as the size of the
the string grows, for example going from 1 digit to 2, the scale
adapts to fit the resulting image in the unit square. |
return underlyingImage.mapToUnitSquare();
}
| This is a time-varying solid-colored image, infinite in extent. |
ImageBvr createBackgroundColorCycler() {
NumberBvr hue1 = mul(localTime, toBvr(0.2));
ColorBvr col1 = colorHsl(hue1, toBvr(0.5), toBvr(0.5));
return solidColorImage(col1);
}
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.
