Example usage for android.graphics PathMeasure PathMeasure

Introduction

In this page you can find the example usage for android.graphics PathMeasure PathMeasure.

Prototype

public PathMeasure(Path path, boolean forceClosed) 

Source Link

Document

Create a PathMeasure object associated with the specified path object (already created and specified).

Usage

From source file:jp.co.recruit_lifestyle.android.widget.ColoringLoadingView.java

public void setCharacter(Character character) {
    if (!isPreDraw) {
        mCharacter = character;/*from w ww .  ja v  a 2  s. c  om*/
        return;
    }
    Path characterPath;
    switch (character) {
    case NINJA:
        characterPath = NinjaPath.getNinjaPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case BUTTERFLY:
        characterPath = ButterflyPath.getButterflyPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case AK:
        characterPath = AkPath.getAkPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case HAIR_STYLE:
        characterPath = HairStylePath.getHairStylePath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case TOOTH:
        characterPath = ToothPath.getToothPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case STORM:
        characterPath = StormPath.getStormPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case DOGEZA:
        characterPath = DogezaPath.getDogezaPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case CAT:
        characterPath = CatPath.getCatPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case VIOLIN:
        characterPath = ViolinPath.getViolinPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case CUCUMBER:
        characterPath = CucumberPath.getCucumberPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case NINJA_STAR:
        characterPath = NinjaStarPath.getNinjaStarPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    case SIM:
        characterPath = NinjaStarPath.getNinjaStarPath(mViewWidth / 1.5f, mCenterPoint);
        break;

    default:
        characterPath = NinjaPath.getNinjaPath(mViewWidth / 1.5f, mCenterPoint);
        break;
    }
    mCharacterPathMeasure = new PathMeasure(characterPath, false);
    mRectF.setEmpty();
    characterPath.computeBounds(mRectF, true);
    mRegion.setEmpty();
    mRegion.set((int) mRectF.left, (int) mRectF.top, (int) mRectF.right, (int) mRectF.bottom);
    mRegion.setPath(characterPath, mRegion);
}

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From source file:com.jrummyapps.android.widget.AnimatedSvgView.java

/**
 * If you set the SVG data paths more than once using {@link #setGlyphStrings(String...)} you should call this method
 * before playing the animation.//from w ww.j a v a  2 s .c o m
 */
@SuppressWarnings("SuspiciousNameCombination")
public void rebuildGlyphData() {

    float X = mWidth / mViewport.x;
    float Y = mHeight / mViewport.y;

    Matrix scaleMatrix = new Matrix();
    RectF outerRect = new RectF(X, X, Y, Y);
    scaleMatrix.setScale(X, Y, outerRect.centerX(), outerRect.centerY());

    mGlyphData = new GlyphData[mGlyphStrings.length];
    for (int i = 0; i < mGlyphStrings.length; i++) {
        mGlyphData[i] = new GlyphData();
        try {
            mGlyphData[i].path = ExposedPathParser.createPathFromPathData(mGlyphStrings[i]);
            mGlyphData[i].path.transform(scaleMatrix);
        } catch (Exception e) {
            mGlyphData[i].path = new Path();
            Log.e(TAG, "Couldn't parse path", e);
        }
        PathMeasure pm = new PathMeasure(mGlyphData[i].path, true);
        while (true) {
            mGlyphData[i].length = Math.max(mGlyphData[i].length, pm.getLength());
            if (!pm.nextContour()) {
                break;
            }
        }
        mGlyphData[i].paint = new Paint();
        mGlyphData[i].paint.setStyle(Paint.Style.STROKE);
        mGlyphData[i].paint.setAntiAlias(true);
        mGlyphData[i].paint.setColor(Color.WHITE);
        mGlyphData[i].paint.setStrokeWidth(
                TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, getResources().getDisplayMetrics()));
    }
}

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From source file:de.uni_weimar.mheinz.androidtouchscope.display.ScopeView.java

public void setChannelData(int channel, WaveData waveData, TimeData timeData, TriggerData trigData) {
    // being updated by user
    if (mInMovement || mInScaling)
        return;/* w  ww.  ja  v  a2s . co  m*/

    switch (channel) {
    case 1: {
        mPrevChan1 = waveData;
        int retValue = updatePath(mPathChan1, waveData);
        if (retValue > 0)
            mChan1Text = updateVoltText(CHAN1_SCALE_TEXT, waveData.voltageScale);
        else if (retValue < 0)
            mChan1Text = "";
        break;
    }
    case 2: {
        mPrevChan2 = waveData;
        int retValue = updatePath(mPathChan2, waveData);
        if (retValue > 0)
            mChan2Text = updateVoltText(CHAN2_SCALE_TEXT, waveData.voltageScale);
        else if (retValue < 0)
            mChan2Text = "";
        break;
    }
    }

    if (mOnDataChanged != null && mChangeDelay <= 0) {
        mPrevTime = timeData;
        if (timeData != null) {
            mTimeScreenOffset = toScreenPosH(timeData.timeScale, timeData.timeOffset);
            mOnDataChanged.moveTime((float) mTimeScreenOffset, false);

            mTimeText = updateTimeText(TIME_SCALE_TEXT, timeData.timeScale);
            mTimeOffsetText = updateTimeText(TIME_OFFSET_TEXT, timeData.timeOffset);
        }

        mPrevTrig = trigData;
        if (trigData != null && waveData != null
                && ((trigData.source == TriggerData.TriggerSrc.CHAN1 && channel == 1)
                        || trigData.source == TriggerData.TriggerSrc.CHAN2 && channel == 2)) {
            mTriggerScreenOffset = (float) toScreenPosV(waveData.voltageScale,
                    waveData.voltageOffset + trigData.level);
            mOnDataChanged.moveTrigger((float) mTriggerScreenOffset, false);

            mTriggerText = updateTriggerText(trigData);
        }

        if (waveData != null && waveData.data != null) {
            double cursorPos = toScreenPosV(waveData.voltageScale, waveData.voltageOffset);
            if (channel == 1)
                mChan1ScreenOffset = cursorPos;
            else
                mChan2ScreenOffset = cursorPos;
            mOnDataChanged.moveWave(channel, (int) cursorPos, false);
        }

        if (mCursorUpdateNeeded) {
            mCursorUpdateNeeded = false;

            for (CursorView cursorView : mCursorArray.values()) {
                cursorView.update();
            }
        }
    }

    // Auto select channel (if only one on, it is selected)
    if (channelOnCount() > 1) {
        if (mSelectedPath == -1)
            mSelectedPath = 1;
    } else if (new PathMeasure(mPathChan1, false).getLength() > 0)
        mSelectedPath = 1;
    else if (new PathMeasure(mPathChan2, false).getLength() > 0)
        mSelectedPath = 2;

    postInvalidate();
}

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From source file:de.uni_weimar.mheinz.androidtouchscope.display.ScopeView.java

private int updatePath(Path path, WaveData waveData) {
    int retValue = -1;
    if (waveData == null || waveData.data == null || waveData.data.length == 0) {
        path.rewind();/*from w  ww.j a va2  s .  co m*/
        return retValue;
    }

    retValue = 0;
    int length = Math.min(BaseScope.SAMPLE_LENGTH, waveData.data.length) - 10;
    float widthRatio = (float) (mContentWidth) / (length * DISPLAY_RATIO);
    double vScale = waveData.voltageScale;
    if (vScale == 0)
        vScale = 1.0f;

    Path newPath = new Path();
    double point = manipulatePoint(waveData.voltageOffset, vScale, waveData.data[10]);

    float j = -(length * (1 - DISPLAY_RATIO)) / 2;
    newPath.moveTo(j++ * widthRatio, (float) point);

    for (int i = 11; i < waveData.data.length; ++i, ++j) {
        point = manipulatePoint(waveData.voltageOffset, vScale, waveData.data[i]);
        newPath.lineTo(j * widthRatio, (float) point);
    }

    if (new PathMeasure(path, false).getLength() == 0) {
        path.set(newPath);
        return retValue;
    }

    if (mChangeDelay <= 0) {
        path.set(newPath);
        retValue = 1;
    } else {
        mChangeDelay--;
    }

    return retValue;
}

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From source file:android.support.graphics.drawable.AnimatorInflaterCompat.java

private static void setupPathMotion(Path path, ObjectAnimator oa, float precision, String propertyXName,
        String propertyYName) {/*from w  w  w. j  a  v a2 s.  co m*/
    // Measure the total length the whole path.
    final PathMeasure measureForTotalLength = new PathMeasure(path, false);
    float totalLength = 0;
    // The sum of the previous contour plus the current one. Using the sum here b/c we want to
    // directly substract from it later.
    ArrayList<Float> contourLengths = new ArrayList<>();
    contourLengths.add(0f);
    do {
        final float pathLength = measureForTotalLength.getLength();
        totalLength += pathLength;
        contourLengths.add(totalLength);

    } while (measureForTotalLength.nextContour());

    // Now determine how many sample points we need, and the step for next sample.
    final PathMeasure pathMeasure = new PathMeasure(path, false);

    final int numPoints = min(MAX_NUM_POINTS, (int) (totalLength / precision) + 1);

    float[] mX = new float[numPoints];
    float[] mY = new float[numPoints];
    final float[] position = new float[2];

    int contourIndex = 0;
    float step = totalLength / (numPoints - 1);
    float currentDistance = 0;

    // For each sample point, determine whether we need to move on to next contour.
    // After we find the right contour, then sample it using the current distance value minus
    // the previously sampled contours' total length.
    for (int i = 0; i < numPoints; ++i) {
        pathMeasure.getPosTan(currentDistance, position, null);
        pathMeasure.getPosTan(currentDistance, position, null);

        mX[i] = position[0];
        mY[i] = position[1];
        currentDistance += step;
        if ((contourIndex + 1) < contourLengths.size()
                && currentDistance > contourLengths.get(contourIndex + 1)) {
            currentDistance -= contourLengths.get(contourIndex + 1);
            contourIndex++;
            pathMeasure.nextContour();
        }
    }

    // Given the x and y value of the sample points, setup the ObjectAnimator properly.
    PropertyValuesHolder x = null;
    PropertyValuesHolder y = null;
    if (propertyXName != null) {
        x = PropertyValuesHolder.ofFloat(propertyXName, mX);
    }
    if (propertyYName != null) {
        y = PropertyValuesHolder.ofFloat(propertyYName, mY);
    }
    if (x == null) {
        oa.setValues(y);
    } else if (y == null) {
        oa.setValues(x);
    } else {
        oa.setValues(x, y);
    }
}

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From source file:com.github.shareme.gwsmaterialuikit.library.viewanimator.AnimationBuilder.java

/**
 * ?// w w w . j  a v a  2s  .co m
 *
 * @param path the path
 * @return the animation builder
 * @link http://blog.csdn.net/tianjian4592/article/details/47067161
 */
public AnimationBuilder path(Path path) {
    if (path == null) {
        return this;
    }
    final PathMeasure pathMeasure = new PathMeasure(path, false);
    return custom(new AnimationListener.Update() {
        @Override
        public void update(View view, float value) {
            float[] currentPosition = new float[2];// ???
            pathMeasure.getPosTan(value, currentPosition, null);
            final float x = currentPosition[0];
            final float y = currentPosition[1];
            ViewCompat.setX(view, x);
            ViewCompat.setY(view, y);
            Timber.d("path: value=" + value + ", x=" + x + ", y=" + y);
        }
    }, 0, pathMeasure.getLength());
}

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From source file:de.uni_weimar.mheinz.androidtouchscope.display.ScopeView.java

private int channelOnCount() {
    int count = 0;

    PathMeasure measure = new PathMeasure(mPathChan1, false);
    count += measure.getLength() > 0 ? 1 : 0;
    measure.setPath(mPathChan2, false);//from w  w w  .  j  av  a2  s.c om
    count += measure.getLength() > 0 ? 1 : 0;

    return count;
}

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From source file:de.uni_weimar.mheinz.androidtouchscope.display.ScopeView.java

private float smallestDistanceToPath(Path path, float x, float y) {
    PathMeasure measure = new PathMeasure(path, false);
    float pos[] = { 0f, 0f };
    float minDist = 1000f;
    float dist;/*from w ww  .ja  v a2 s. co  m*/

    for (int i = 0; i < measure.getLength(); ++i) {
        measure.getPosTan(i, pos, null);
        dist = (float) Math.hypot(x - pos[0], y - pos[1]);
        if (dist < minDist)
            minDist = dist;
    }
    return minDist;
}

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From source file:com.waz.zclient.views.images.CircularSeekBar.java

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);
    }/*  ww w. java2 s.c o  m*/
}

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