Android的油漆笔画宽度定位 [英] Android Paint stroke width positioning
问题描述
鉴于这种code画一条线:
Given this code to draw a line:
Paint p;
p = new Paint(Paint.ANTI_ALIAS_FLAG);
p.setColor(android.graphics.Color.WHITE);
p.setStyle(Paint.Style.FILL);
p.setStrokeWidth(21);
canvas.drawLine(0,50,100,50,p);
有3种可能的行:
- 在内部:该生产线是画在矩形(0,50,100,70)
- 中心:该生产线是画在矩形(0,40,100,60)
- 外:该生产线是画在矩形(0,30,100,50)
我看到在实践中居中模式。
What I see in practice is centered mode.
是否有可能控制笔划宽度是如何绘(内部,外部,中心)?
推荐答案
没有你不行;斯托克始终集中。
你可以CONTROLE唯一的事情是:
- 行程米特:<一href="http://developer.android.com/reference/android/graphics/Paint.html#getStrokeMiter()">http://developer.android.com/reference/android/graphics/Paint.html#getStrokeMiter()
- 行程上限:<一href="http://developer.android.com/reference/android/graphics/Paint.html#getStrokeCap()">http://developer.android.com/reference/android/graphics/Paint.html#getStrokeCap()
- 行程加入:<一href="http://developer.android.com/reference/android/graphics/Paint.html#getStrokeJoin()">http://developer.android.com/reference/android/graphics/Paint.html#getStrokeJoin()
- 笔划宽度:<一href="http://developer.android.com/reference/android/graphics/Paint.html#getStrokeWidth()">http://developer.android.com/reference/android/graphics/Paint.html#getStrokeWidth()
No you can't; the stoke is always centered.
The only things you can controle are :
- stroke mitter : http://developer.android.com/reference/android/graphics/Paint.html#getStrokeMiter()
- stroke cap : http://developer.android.com/reference/android/graphics/Paint.html#getStrokeCap()
- stroke join : http://developer.android.com/reference/android/graphics/Paint.html#getStrokeJoin()
- stroke width : http://developer.android.com/reference/android/graphics/Paint.html#getStrokeWidth()
在你的情况,你必须根据你的行程需要precalculate所需的宽度和高度
in your case, you must precalculate the desired width and height according to your stroke requirement
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