QGIS API Documentation
2.12.0-Lyon
|
#include <qgssymbolv2.h>
Public Member Functions | |
QgsLineSymbolV2 (const QgsSymbolLayerV2List &layers=QgsSymbolLayerV2List()) | |
virtual QgsSymbolV2 * | clone () const override |
QgsDataDefined | dataDefinedWidth () const |
Returns data defined size for whole symbol (including all symbol layers). More... | |
void | renderPolyline (const QPolygonF &points, const QgsFeature *f, QgsRenderContext &context, int layer=-1, bool selected=false) |
void | setDataDefinedWidth (const QgsDataDefined &dd) |
Set data defined width for whole symbol (including all symbol layers). More... | |
void | setWidth (double width) |
double | width () const |
Public Member Functions inherited from QgsSymbolV2 | |
virtual | ~QgsSymbolV2 () |
qreal | alpha () const |
Get alpha transparency 1 for opaque, 0 for invisible. More... | |
bool | appendSymbolLayer (QgsSymbolLayerV2 *layer) |
Append symbol layer at the end of the list Ownership will be transferred. More... | |
QImage | asImage (QSize size, QgsRenderContext *customContext=0) |
Generate symbol as image. More... | |
QImage | bigSymbolPreviewImage (QgsExpressionContext *expressionContext=0) |
Returns a large (roughly 100x100 pixel) preview image for the symbol. More... | |
bool | changeSymbolLayer (int index, QgsSymbolLayerV2 *layer) |
delete layer at specified index and set a new one More... | |
bool | clipFeaturesToExtent () const |
Returns whether features drawn by the symbol will be clipped to the render context's extent. More... | |
QColor | color () const |
bool | deleteSymbolLayer (int index) |
delete symbol layer at specified index More... | |
void | drawPreviewIcon (QPainter *painter, QSize size, QgsRenderContext *customContext=0) |
Draw icon of the symbol that occupyies area given by size using the painter. More... | |
QString | dump () const |
void | exportImage (const QString &path, const QString &format, const QSize &size) |
export symbol as image format. PNG and SVG supported More... | |
bool | insertSymbolLayer (int index, QgsSymbolLayerV2 *layer) |
Insert symbol layer to specified index Ownership will be transferred. More... | |
const QgsVectorLayer * | layer () const |
QgsMapUnitScale | mapUnitScale () const |
QgsSymbolV2::OutputUnit | outputUnit () const |
int | renderHints () const |
void | setAlpha (qreal alpha) |
Set alpha transparency 1 for opaque, 0 for invisible. More... | |
void | setClipFeaturesToExtent (bool clipFeaturesToExtent) |
Sets whether features drawn by the symbol should be clipped to the render context's extent. More... | |
void | setColor (const QColor &color) |
void | setLayer (const QgsVectorLayer *layer) |
void | setMapUnitScale (const QgsMapUnitScale &scale) |
void | setOutputUnit (QgsSymbolV2::OutputUnit u) |
void | setRenderHints (int hints) |
void | startRender (QgsRenderContext &context, const QgsFields *fields=0) |
void | stopRender (QgsRenderContext &context) |
QgsSymbolLayerV2 * | symbolLayer (int layer) |
Returns a specific symbol layers contained in the symbol. More... | |
int | symbolLayerCount () |
Returns total number of symbol layers contained in the symbol. More... | |
QgsSymbolLayerV2List | symbolLayers () |
Returns list of symbol layers contained in the symbol. More... | |
QgsSymbolLayerV2 * | takeSymbolLayer (int index) |
Remove symbol layer from the list and return pointer to it. More... | |
void | toSld (QDomDocument &doc, QDomElement &element, QgsStringMap props) const |
SymbolType | type () const |
QSet< QString > | usedAttributes () const |
Static Public Member Functions | |
static QgsLineSymbolV2 * | createSimple (const QgsStringMap &properties) |
Create a line symbol with one symbol layer: SimpleLine with specified properties. More... | |
Static Public Member Functions inherited from QgsSymbolV2 | |
static QgsSymbolV2 * | defaultSymbol (QGis::GeometryType geomType) |
return new default symbol for specified geometry type More... | |
Additional Inherited Members | |
Public Types inherited from QgsSymbolV2 | |
enum | OutputUnit { MM = 0, MapUnit, Mixed, Pixel } |
The unit of the output. More... | |
typedef QList< OutputUnit > | OutputUnitList |
enum | RenderHint { DataDefinedSizeScale = 1, DataDefinedRotation = 2 } |
enum | ScaleMethod { ScaleArea, ScaleDiameter } |
Scale method. More... | |
enum | SymbolType { Marker, Line, Fill } |
Type of the symbol. More... | |
Protected Member Functions inherited from QgsSymbolV2 | |
QgsSymbolV2 (SymbolType type, const QgsSymbolLayerV2List &layers) | |
QgsSymbolLayerV2List | cloneLayers () const |
bool | isSymbolLayerCompatible (SymbolType t) |
check whether a symbol layer type can be used within the symbol (marker-marker, line-line, fill-fill/line) More... | |
Protected Attributes inherited from QgsSymbolV2 | |
qreal | mAlpha |
Symbol opacity (in the range 0 - 1) More... | |
bool | mClipFeaturesToExtent |
const QgsVectorLayer * | mLayer |
QgsSymbolLayerV2List | mLayers |
int | mRenderHints |
SymbolType | mType |
Definition at line 383 of file qgssymbolv2.h.
QgsLineSymbolV2::QgsLineSymbolV2 | ( | const QgsSymbolLayerV2List & | layers = QgsSymbolLayerV2List() | ) |
Definition at line 872 of file qgssymbolv2.cpp.
|
overridevirtual |
Implements QgsSymbolV2.
Definition at line 1042 of file qgssymbolv2.cpp.
|
static |
Create a line symbol with one symbol layer: SimpleLine with specified properties.
This is a convenience method for easier creation of line symbols.
Definition at line 545 of file qgssymbolv2.cpp.
QgsDataDefined QgsLineSymbolV2::dataDefinedWidth | ( | ) | const |
Returns data defined size for whole symbol (including all symbol layers).
Definition at line 946 of file qgssymbolv2.cpp.
void QgsLineSymbolV2::renderPolyline | ( | const QPolygonF & | points, |
const QgsFeature * | f, | ||
QgsRenderContext & | context, | ||
int | layer = -1 , |
||
bool | selected = false |
||
) |
Definition at line 997 of file qgssymbolv2.cpp.
void QgsLineSymbolV2::setDataDefinedWidth | ( | const QgsDataDefined & | dd | ) |
Set data defined width for whole symbol (including all symbol layers).
dd | data defined width |
Definition at line 914 of file qgssymbolv2.cpp.
void QgsLineSymbolV2::setWidth | ( | double | width | ) |
Definition at line 879 of file qgssymbolv2.cpp.
double QgsLineSymbolV2::width | ( | ) | const |
Definition at line 901 of file qgssymbolv2.cpp.