Cross Reference: /frameworks/base/services/core/java/com/android/server/wm/CircularDisplayMask.java

Lines Matching refs:radius
102     static private double verticalLineIntersectsCircle(double x, double radius) {
103         return Math.sqrt(radius*radius - x*x);
106     static private double  horizontalLineIntersectsCircle(double y, double radius) {
107         return Math.sqrt(radius*radius - y*y);
118     static private double areaUnderChord(double radius, double chordLength) {
119         double isocelesHeight = Math.sqrt(radius*radius - chordLength * chordLength / 4.0);
121         double halfAngle = Math.asin(chordLength / (2.0 * radius));
122         double areaUnderArc = halfAngle * radius * radius;
128     // the circle with center (cx, cy) and radius 'radius'
130             double py, double radius) {
153         if (distanceFromCenterSquared(left, bottom) > radius*radius) {
157         if (distanceFromCenterSquared(right, top) < radius*radius) {
162         if (distanceFromCenterSquared(left, top) > radius*radius) {
163             double triangleWidth = horizontalLineIntersectsCircle(bottom, radius) - left;
164             double triangleHeight = verticalLineIntersectsCircle(left, radius) - bottom;
168                    + areaUnderChord(radius, chordLength);
173         if (distanceFromCenterSquared(right, bottom) < radius*radius) {
174             double triangleWidth = right - horizontalLineIntersectsCircle(top, radius);
175             double triangleHeight = top - verticalLineIntersectsCircle(right, radius);
179                    + areaUnderChord(radius, chordLength);
183         double trapezoidWidth1 = horizontalLineIntersectsCircle(top, radius) - left;
184         double trapezoidWidth2 = horizontalLineIntersectsCircle(bottom, radius) - left;
187                          + areaUnderChord(radius, chordLength);
191         if (top >= 0 && bottom <= 0 && radius > right) {
192             shading -= areaUnderChord(radius, 2 * verticalLineIntersectsCircle(right, radius));
246         double radius = maskWidth / 2.0;
251                 double shading = calcPixelShading(cx, cy, px, py, radius);