Proxy class for presenting data in item models with Scatter3D . 更多...
| import 语句： |
import QtGraphs
|
| 在 C++： | QItemModelScatterDataProxy |
| 继承： |
This type allows you to use AbstractItemModel derived models as a data source for Scatter3D .
The data is resolved asynchronously whenever the mapping or the model changes. QScatterDataProxy::arrayReset () is emitted when the data has been resolved.
更多细节，见 QItemModelScatterDataProxy 文档编制。
用法范例：
ItemModelScatterDataProxy {
itemModel: model // E.g. a list model defined elsewhere containing point coordinates.
// Mapping model roles to scatter series item coordinates.
xPosRole: "xPos"
yPosRole: "yPos"
zPosRole: "zPos"
}
另请参阅 ScatterDataProxy and Qt Graphs Data Handling with 3D .
|
itemModel : model |
The item model to use as a data source for Scatter3D .
|
rotationRole : string |
The item model role to map into item rotation. The model may supply the value for rotation as either variant that is directly convertible to
quaternion
, or as one of the string representations:
"scalar,x,y,z"
or
"@angle,x,y,z"
. The first format will construct the
quaternion
directly with given values, and the second one will construct the
quaternion
使用
QQuaternion::fromAxisAndAngle
() 方法。
|
rotationRolePattern : regExp |
When set, a search and replace is done on the value mapped by the rotation role before it is used as item rotation. This property specifies the regular expression to find the portion of the mapped value to replace, and rotationRoleReplace property contains the replacement string.
另请参阅 rotationRole and rotationRoleReplace .
|
rotationRoleReplace : string |
This property defines the replacement content to be used in conjunction with rotationRolePattern . Defaults to an empty string. For more information on how the search and replace using regular expressions works, see the QString::replace (const QRegularExpression &rx, const QString &after) function documentation.
另请参阅 rotationRole and rotationRolePattern .
|
type
:
AbstractDataProxy
.
DataType
|
The type of the proxy. One of the QAbstractDataProxy::DataType 值。
|
xPosRole : string |
The item model role to map into the X position.
|
xPosRolePattern : regExp |
When set, a search and replace is done on the value mapped by the x-position role before it is used as an item position value. This property specifies the regular expression to find the portion of the mapped value to replace, and xPosRoleReplace property contains the replacement string.
另请参阅 xPosRole and xPosRoleReplace .
|
xPosRoleReplace : string |
This property defines the replacement content to be used in conjunction with xPosRolePattern . Defaults to an empty string. For more information on how the search and replace using regular expressions works, see the QString::replace (const QRegularExpression &rx, const QString &after) function documentation.
另请参阅 xPosRole and xPosRolePattern .
|
yPosRole : string |
The item model role to map into the Y position.
|
yPosRolePattern : regExp |
When set, a search and replace is done on the value mapped by the y-position role before it is used as an item position value. This property specifies the regular expression to find the portion of the mapped value to replace, and yPosRoleReplace property contains the replacement string.
另请参阅 yPosRole and yPosRoleReplace .
|
yPosRoleReplace : string |
This property defines the replacement content to be used in conjunction with yPosRolePattern . Defaults to an empty string. For more information on how the search and replace using regular expressions works, see the QString::replace (const QRegularExpression &rx, const QString &after) function documentation.
另请参阅 yPosRole and yPosRolePattern .
|
zPosRole : string |
The item model role to map into the Z position.
|
zPosRolePattern : regExp |
When set, a search and replace is done on the value mapped by the z-position role before it is used as an item position value. This property specifies the regular expression to find the portion of the mapped value to replace, and zPosRoleReplace property contains the replacement string.
另请参阅 zPosRole and zPosRoleReplace .
|
zPosRoleReplace : string |
This property defines the replacement content to be used in conjunction with zPosRolePattern . Defaults to an empty string. For more information on how the search and replace using regular expressions works, see the QString::replace (const QRegularExpression &rx, const QString &after) function documentation.
另请参阅 zPosRole and zPosRolePattern .
|
itemModelChanged ( model itemModel ) |
此信号发射，当 itemModel changes to itemModel .
注意：
相应处理程序是
onItemModelChanged
.
|
rotationRoleChanged ( string role ) |
此信号发射，当 rotationRole changes to role .
注意：
相应处理程序是
onRotationRoleChanged
.
|
rotationRolePatternChanged ( regExp pattern ) |
此信号发射，当 rotationRolePattern changes to pattern .
注意：
相应处理程序是
onRotationRolePatternChanged
.
|
rotationRoleReplaceChanged ( string replace ) |
此信号发射，当 rotationRoleReplace changes to replace .
注意：
相应处理程序是
onRotationRoleReplaceChanged
.
|
xPosRoleChanged ( string role ) |
此信号发射，当 xPosRole changes to role .
注意：
相应处理程序是
onXPosRoleChanged
.
|
xPosRolePatternChanged ( regExp pattern ) |
此信号发射，当 xPosRolePattern changes to pattern .
注意：
相应处理程序是
onXPosRolePatternChanged
.
|
xPosRoleReplaceChanged ( string replace ) |
此信号发射，当 xPosRoleReplace changes to replace .
注意：
相应处理程序是
onXPosRoleReplaceChanged
.
|
yPosRoleChanged ( string role ) |
此信号发射，当 yPosRole changes to role .
注意：
相应处理程序是
onYPosRoleChanged
.
|
yPosRolePatternChanged ( regExp pattern ) |
此信号发射，当 yPosRolePattern changes to pattern .
注意：
相应处理程序是
onYPosRolePatternChanged
.
|
yPosRoleReplaceChanged ( string replace ) |
此信号发射，当 yPosRoleReplace changes to replace .
注意：
相应处理程序是
onYPosRoleReplaceChanged
.
|
zPosRoleChanged ( string role ) |
此信号发射，当 zPosRole changes to role .
注意：
相应处理程序是
onZPosRoleChanged
.
|
zPosRolePatternChanged ( regExp pattern ) |
此信号发射，当 zPosRolePattern changes to pattern .
注意：
相应处理程序是
onZPosRolePatternChanged
.
|
zPosRoleReplaceChanged ( string replace ) |
此信号发射，当 zPosRoleReplace changes to replace .
注意：
相应处理程序是
onZPosRoleReplaceChanged
.