QGIS API Documentation  3.11.0-Master (68611307d7)
Public Types | Public Member Functions | List of all members
QgsMeshRendererVectorArrowSettings Class Reference

Represents a mesh renderer settings for vector datasets displayed with arrows. More...

#include <qgsmeshrenderersettings.h>

Public Types

enum  ArrowScalingMethod { MinMax = 0, Scaled, Fixed }
 Algorithm how to transform vector magnitude to length of arrow on the device in pixels. More...
 

Public Member Functions

double arrowHeadLengthRatio () const
 Returns ratio of the head length of the arrow (range 0-1) More...
 
double arrowHeadWidthRatio () const
 Returns ratio of the head width of the arrow (range 0-1) More...
 
double fixedShaftLength () const
 Returns fixed arrow length (in millimeters) More...
 
double maxShaftLength () const
 Returns maximum shaft length (in millimeters) More...
 
double minShaftLength () const
 Returns mininimum shaft length (in millimeters) More...
 
void readXml (const QDomElement &elem)
 Reads configuration from the given DOM element. More...
 
double scaleFactor () const
 Returns scale factor. More...
 
void setArrowHeadLengthRatio (double arrowHeadLengthRatio)
 Sets ratio of the head length of the arrow (range 0-1) More...
 
void setArrowHeadWidthRatio (double arrowHeadWidthRatio)
 Sets ratio of the head width of the arrow (range 0-1) More...
 
void setFixedShaftLength (double fixedShaftLength)
 Sets fixed length (in millimeters) More...
 
void setMaxShaftLength (double maxShaftLength)
 Sets maximum shaft length (in millimeters) More...
 
void setMinShaftLength (double minShaftLength)
 Sets mininimum shaft length (in millimeters) More...
 
void setScaleFactor (double scaleFactor)
 Sets scale factor. More...
 
void setShaftLengthMethod (ArrowScalingMethod shaftLengthMethod)
 Sets method used for drawing arrows. More...
 
QgsMeshRendererVectorArrowSettings::ArrowScalingMethod shaftLengthMethod () const
 Returns method used for drawing arrows. More...
 
QDomElement writeXml (QDomDocument &doc) const
 Writes configuration to a new DOM element. More...
 

Detailed Description

Represents a mesh renderer settings for vector datasets displayed with arrows.

Note
The API is considered EXPERIMENTAL and can be changed without a notice
Since
QGIS 3.12

Definition at line 153 of file qgsmeshrenderersettings.h.

Member Enumeration Documentation

◆ ArrowScalingMethod

Algorithm how to transform vector magnitude to length of arrow on the device in pixels.

Enumerator
MinMax 

Scale vector magnitude linearly to fit in range of vectorFilterMin() and vectorFilterMax()

Scaled 

Scale vector magnitude by factor scaleFactor()

Fixed 

Use fixed length fixedShaftLength() regardless of vector's magnitude.

Definition at line 158 of file qgsmeshrenderersettings.h.

Member Function Documentation

◆ arrowHeadLengthRatio()

double QgsMeshRendererVectorArrowSettings::arrowHeadLengthRatio ( ) const

Returns ratio of the head length of the arrow (range 0-1)

Definition at line 277 of file qgsmeshrenderersettings.cpp.

◆ arrowHeadWidthRatio()

double QgsMeshRendererVectorArrowSettings::arrowHeadWidthRatio ( ) const

Returns ratio of the head width of the arrow (range 0-1)

Definition at line 267 of file qgsmeshrenderersettings.cpp.

◆ fixedShaftLength()

double QgsMeshRendererVectorArrowSettings::fixedShaftLength ( ) const

Returns fixed arrow length (in millimeters)

Only for QgsMeshRendererVectorSettings::ArrowScalingMethod::Fixed

Definition at line 257 of file qgsmeshrenderersettings.cpp.

◆ maxShaftLength()

double QgsMeshRendererVectorArrowSettings::maxShaftLength ( ) const

Returns maximum shaft length (in millimeters)

Only for QgsMeshRendererVectorSettings::ArrowScalingMethod::MinMax

Definition at line 237 of file qgsmeshrenderersettings.cpp.

◆ minShaftLength()

double QgsMeshRendererVectorArrowSettings::minShaftLength ( ) const

Returns mininimum shaft length (in millimeters)

Only for QgsMeshRendererVectorSettings::ArrowScalingMethod::MinMax

Definition at line 227 of file qgsmeshrenderersettings.cpp.

◆ readXml()

void QgsMeshRendererVectorArrowSettings::readXml ( const QDomElement &  elem)

Reads configuration from the given DOM element.

Definition at line 316 of file qgsmeshrenderersettings.cpp.

◆ scaleFactor()

double QgsMeshRendererVectorArrowSettings::scaleFactor ( ) const

Returns scale factor.

Only for QgsMeshRendererVectorSettings::ArrowScalingMethod::Scaled

Definition at line 247 of file qgsmeshrenderersettings.cpp.

◆ setArrowHeadLengthRatio()

void QgsMeshRendererVectorArrowSettings::setArrowHeadLengthRatio ( double  arrowHeadLengthRatio)

Sets ratio of the head length of the arrow (range 0-1)

Definition at line 282 of file qgsmeshrenderersettings.cpp.

◆ setArrowHeadWidthRatio()

void QgsMeshRendererVectorArrowSettings::setArrowHeadWidthRatio ( double  arrowHeadWidthRatio)

Sets ratio of the head width of the arrow (range 0-1)

Definition at line 272 of file qgsmeshrenderersettings.cpp.

◆ setFixedShaftLength()

void QgsMeshRendererVectorArrowSettings::setFixedShaftLength ( double  fixedShaftLength)

Sets fixed length (in millimeters)

Only for QgsMeshRendererVectorSettings::ArrowScalingMethod::Fixed

Definition at line 262 of file qgsmeshrenderersettings.cpp.

◆ setMaxShaftLength()

void QgsMeshRendererVectorArrowSettings::setMaxShaftLength ( double  maxShaftLength)

Sets maximum shaft length (in millimeters)

Only for QgsMeshRendererVectorSettings::ArrowScalingMethod::MinMax

Definition at line 242 of file qgsmeshrenderersettings.cpp.

◆ setMinShaftLength()

void QgsMeshRendererVectorArrowSettings::setMinShaftLength ( double  minShaftLength)

Sets mininimum shaft length (in millimeters)

Only for QgsMeshRendererVectorSettings::ArrowScalingMethod::MinMax

Definition at line 232 of file qgsmeshrenderersettings.cpp.

◆ setScaleFactor()

void QgsMeshRendererVectorArrowSettings::setScaleFactor ( double  scaleFactor)

Sets scale factor.

Only for QgsMeshRendererVectorSettings::ArrowScalingMethod::Scaled

Definition at line 252 of file qgsmeshrenderersettings.cpp.

◆ setShaftLengthMethod()

void QgsMeshRendererVectorArrowSettings::setShaftLengthMethod ( QgsMeshRendererVectorArrowSettings::ArrowScalingMethod  shaftLengthMethod)

Sets method used for drawing arrows.

Definition at line 222 of file qgsmeshrenderersettings.cpp.

◆ shaftLengthMethod()

QgsMeshRendererVectorArrowSettings::ArrowScalingMethod QgsMeshRendererVectorArrowSettings::shaftLengthMethod ( ) const

Returns method used for drawing arrows.

Definition at line 217 of file qgsmeshrenderersettings.cpp.

◆ writeXml()

QDomElement QgsMeshRendererVectorArrowSettings::writeXml ( QDomDocument &  doc) const

Writes configuration to a new DOM element.

Definition at line 287 of file qgsmeshrenderersettings.cpp.


The documentation for this class was generated from the following files: