public void draw(Canvas canvas){
        if (displayLongitude || displayLongitudeTitle) {
            drawLongitudeLine(canvas);
            drawLongitudeTitle(canvas);
        }
        
        if (displayLatitude || displayLatitudeTitle) {
            drawLatitudeLine(canvas);
            drawLatitudeTitle(canvas);
        }
    }
@param displayLongitudeTitle
           the displayLongitudeTitle to set
src/src/cn/limc/androidcharts/common/SimpleGrid.java