/**
* If edge point [x, y] in array [x0, y0, x1, y1, ...] is outside of the image bound rectangle,
* clamps it to the edge of the rectangle.
*
* @param imageBound the rectangle to clamp edge points to.
* @param array an array of points to clamp to the rectangle, gets set to the clamped values.
*/
public static void getEdgePoints(RectF imageBound, float[] array) {
if (array.length < 2) return;
for (int x = 0; x < array.length; x += 2) {
array[x] = GeometryMathUtils.clamp(array[x], imageBound.left, imageBound.right);
array[x + 1] = GeometryMathUtils.clamp(array[x + 1], imageBound.top, imageBound.bottom);
}
}
/**
* Takes a point and the corners of a rectangle and returns the two corners representing the side
* of the rectangle closest to the point.
*
* @param point the point which is being checked
* @param corners the corners of the rectangle
* @return two corners representing the side of the rectangle
*/
public static float[] closestSide(float[] point, float[] corners) {
int len = corners.length;
float oldMag = Float.POSITIVE_INFINITY;
float[] bestLine = null;
for (int i = 0; i < len; i += 2) {
float[] line = {
corners[i], corners[(i + 1) % len],
corners[(i + 2) % len], corners[(i + 3) % len]
};
float mag =
GeometryMathUtils.vectorLength(
GeometryMathUtils.shortestVectorFromPointToLine(point, line));
if (mag < oldMag) {
oldMag = mag;
bestLine = line;
}
}
return bestLine;
}
public Bitmap renderGeometryIcon(Bitmap bitmap, ImagePreset preset) {
return GeometryMathUtils.applyGeometryRepresentations(preset.getGeometryFilters(), bitmap);
}