Examples with PathMeasure android.graphics.PathMeasure used on opensource projects

Example 26 with PathMeasure

use of android.graphics.PathMeasure in project Timber by naman14.

the class CircularSeekBar method calculatePointerXYPosition.

private void calculatePointerXYPosition() {
    PathMeasure pm = new PathMeasure(mCircleProgressPath, false);
    boolean returnValue = pm.getPosTan(pm.getLength(), mPointerPositionXY, null);
    if (!returnValue) {
        pm = new PathMeasure(mCirclePath, false);
        returnValue = pm.getPosTan(0, mPointerPositionXY, null);
    }
}

Example 27 with PathMeasure

use of android.graphics.PathMeasure in project MaterialCalendar by Haoxiqiang.

the class WeatherTemplateView method getPoints.

protected PathPoints[] getPoints(Path path, int size) {
    //Size of 100 indicates that, 100 points
    // would be extracted from the path
    PathPoints[] pointArray = new PathPoints[size];
    PathMeasure pm = new PathMeasure(path, false);
    float length = pm.getLength();
    float distance = 0f;
    float speed = length / size;
    int counter = 0;
    float[] aCoordinates = new float[2];
    while ((distance < length) && (counter < size)) {
        pm.getPosTan(distance, aCoordinates, null);
        pointArray[counter] = new PathPoints(aCoordinates[0], aCoordinates[1]);
        counter++;
        distance = distance + speed;
    }
    return pointArray;
}

Example 28 with PathMeasure

use of android.graphics.PathMeasure in project android_frameworks_base by AOSPA.

the class PatternPathMotion method setPatternPath.

/**
     * Sets the Path defining a pattern of motion between two coordinates.
     * The pattern will be translated, rotated, and scaled to fit between the start and end points.
     * The pattern must not be empty and must have the end point differ from the start point.
     *
     * @param patternPath A Path to be used as a pattern for two-dimensional motion.
     * @attr ref android.R.styleable#PatternPathMotion_patternPathData
     */
public void setPatternPath(Path patternPath) {
    PathMeasure pathMeasure = new PathMeasure(patternPath, false);
    float length = pathMeasure.getLength();
    float[] pos = new float[2];
    pathMeasure.getPosTan(length, pos, null);
    float endX = pos[0];
    float endY = pos[1];
    pathMeasure.getPosTan(0, pos, null);
    float startX = pos[0];
    float startY = pos[1];
    if (startX == endX && startY == endY) {
        throw new IllegalArgumentException("pattern must not end at the starting point");
    }
    mTempMatrix.setTranslate(-startX, -startY);
    float dx = endX - startX;
    float dy = endY - startY;
    float distance = (float) Math.hypot(dx, dy);
    float scale = 1 / distance;
    mTempMatrix.postScale(scale, scale);
    double angle = Math.atan2(dy, dx);
    mTempMatrix.postRotate((float) Math.toDegrees(-angle));
    patternPath.transform(mTempMatrix, mPatternPath);
    mOriginalPatternPath = patternPath;
}

Example 29 with PathMeasure

use of android.graphics.PathMeasure in project wire-android by wireapp.

the class CircularSeekBar method calculatePointerXYPosition.

private void calculatePointerXYPosition() {
    PathMeasure pm = new PathMeasure(circleProgressPath, false);
    boolean returnValue = pm.getPosTan(pm.getLength(), pointerPositionXY, null);
    if (!returnValue) {
        pm = new PathMeasure(circlePath, false);
        returnValue = pm.getPosTan(0, pointerPositionXY, null);
    }
}

Example 30 with PathMeasure

use of android.graphics.PathMeasure in project UltimateAndroid by cymcsg.

the class FloatingActionMenu method calculateItemPositions.

/**
     * Calculates the desired positions of all items.
     */
private void calculateItemPositions() {
    // Create an arc that starts from startAngle and ends at endAngle
    // in an area that is as large as 4*radius^2
    Point center = getActionViewCenter();
    RectF area = new RectF(center.x - radius, center.y - radius, center.x + radius, center.y + radius);
    Path orbit = new Path();
    orbit.addArc(area, startAngle, endAngle - startAngle);
    PathMeasure measure = new PathMeasure(orbit, false);
    // Prevent overlapping when it is a full circle
    int divisor;
    if (Math.abs(endAngle - startAngle) >= 360 || subActionItems.size() <= 1) {
        divisor = subActionItems.size();
    } else {
        divisor = subActionItems.size() - 1;
    }
    // Measure this path, in order to find points that have the same distance between each other
    for (int i = 0; i < subActionItems.size(); i++) {
        float[] coords = new float[] { 0f, 0f };
        measure.getPosTan((i) * measure.getLength() / divisor, coords, null);
        // get the x and y values of these points and set them to each of sub action items.
        subActionItems.get(i).x = (int) coords[0] - subActionItems.get(i).width / 2;
        subActionItems.get(i).y = (int) coords[1] - subActionItems.get(i).height / 2;
    }
}