箭头实现,仅使用线条,可选择填充箭头或仅 线条。
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#include <qwt_vectorfield_symbol.h>
◆ QwtVectorFieldThinArrow()
| QwtVectorFieldThinArrow::QwtVectorFieldThinArrow |
( |
qreal |
headWidth = 6.0 | ) |
|
Constructor with head width parameter
构造函数
长度初始化为 headWidth + 4
- 参数
-
- 参见
- setLength()
◆ ~QwtVectorFieldThinArrow()
| QwtVectorFieldThinArrow::~QwtVectorFieldThinArrow |
( |
| ) |
|
|
overridevirtual |
◆ length()
| qreal QwtVectorFieldThinArrow::length |
( |
| ) |
const |
|
overridevirtual |
◆ paint()
| void QwtVectorFieldThinArrow::paint |
( |
QPainter * |
p | ) |
const |
|
overridevirtual |
◆ setLength()
| void QwtVectorFieldThinArrow::setLength |
( |
qreal |
length | ) |
|
|
overridevirtual |
该类的文档由以下文件生成:
- /home/runner/work/QWT/QWT/src/plot/qwt_vectorfield_symbol.h
- /home/runner/work/QWT/QWT/src/plot/qwt_vectorfield_symbol.cpp