android自己写的类似刻度尺的东西(11)

            }else{ 
                num_x -= mod * move; 
            } 
            float text = 0; 
            for(int i=0; i<5; i++){ 
                if(i < midd){ 
                    text = result - mod * interval - (midd - i) * 5 * interval; 
                }else if(i == midd){ 
                    text = result - mod * interval; 
                }else{ 
                    text += 5 * interval; 
                } 
                text = Arithmetic.round(text, 1); 
                if(text >= 0){ 
                    canvas.drawText(Float.toString(text), num_x, 85, paint); 
                } 
                num_x += jiange; 
            } 
 
            //要绘制的图片矩形区域设置 
            Rect src = new Rect(); 
            src.left = bx; 
            src.top = by; 
            src.right = bx + bw; 
            src.bottom = bh; 
             
            //要绘制的画布矩形区域设置 
            Rect dst = new Rect();