Example usage for android.graphics Path set

Introduction

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

Prototype

public void set(@NonNull Path src) 

Source Link

Document

Replace the contents of this with the contents of src.

Usage

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();//  w  w  w.java 2s .  c o  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;
}

---