Subgroup: other
Class: QgsCompoundCurve¶
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class
qgis.core.
QgsCompoundCurve
¶ Bases:
qgis._core.QgsCurve
Compound curve geometry type
New in version 2.10: Methods
Signals
Attributes
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addCurve
(self, c: QgsCurve)¶ Adds a curve to the geometry (takes ownership)
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addMValue
(self, mValue: float = 0) → bool¶
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addToPainterPath
(self, path: QPainterPath)¶
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addVertex
(self, pt: QgsPoint)¶ Adds a vertex to the end of the geometry.
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addZValue
(self, zValue: float = 0) → bool¶
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asGml2
(self, doc: QDomDocument, precision: int = 17, ns: str = '', axisOrder: QgsAbstractGeometry.AxisOrder = QgsAbstractGeometry.AxisOrder.XY) → QDomElement¶
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asGml3
(self, doc: QDomDocument, precision: int = 17, ns: str = '', axisOrder: QgsAbstractGeometry.AxisOrder = QgsAbstractGeometry.AxisOrder.XY) → QDomElement¶
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asJson
(self, precision: int = 17) → str¶
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asWkb
(self) → QByteArray¶
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asWkt
(self, precision: int = 17) → str¶
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calculateBoundingBox
(self) → QgsRectangle¶
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childCount
()¶
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childGeometry
()¶
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childPoint
()¶
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clear
(self)¶
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clearCache
()¶
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clone
(self) → QgsCompoundCurve¶
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close
(self)¶ Appends first point if not already closed.
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closestSegment
(self, pt: QgsPoint, epsilon: float = 4*DBL_EPSILON) → Tuple[float, QgsPoint, QgsVertexId, int]¶
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createEmptyWithSameType
(self) → QgsCompoundCurve¶
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curveAt
(self, i: int) → QgsCurve¶ Returns the curve at the specified index.
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curveToLine
(self, tolerance: float = M_PI_2/90, toleranceType: QgsAbstractGeometry.SegmentationToleranceType = QgsAbstractGeometry.MaximumAngle) → QgsLineString¶ Returns a new line string geometry corresponding to a segmentized approximation of the curve.
Parameters: - tolerance – segmentation tolerance
- toleranceType – maximum segmentation angle or maximum difference between approximation and curve*
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deleteVertex
(self, position: QgsVertexId) → bool¶
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dimension
(self) → int¶
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draw
(self, p: QPainter)¶
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drawAsPolygon
(self, p: QPainter)¶
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dropMValue
(self) → bool¶
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dropZValue
(self) → bool¶
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endPoint
(self) → QgsPoint¶
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equals
(self, other: QgsCurve) → bool¶
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fromWkb
(self, wkb: QgsConstWkbPtr) → bool¶
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fromWkt
(self, wkt: str) → bool¶
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geometryType
(self) → str¶
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hasChildGeometries
()¶
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hasCurvedSegments
(self) → bool¶
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insertVertex
(self, position: QgsVertexId, vertex: QgsPoint) → bool¶
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isEmpty
(self) → bool¶
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length
(self) → float¶
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moveVertex
(self, position: QgsVertexId, newPos: QgsPoint) → bool¶
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nCurves
(self) → int¶ Returns the number of curves in the geometry.
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numPoints
(self) → int¶
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pointAt
(self, node: int, point: QgsPoint) → Tuple[bool, QgsVertexId.VertexType]¶
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points
(self) → object¶
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removeCurve
(self, i: int)¶ Removes a curve from the geometry.
Parameters: i – index of curve to remove
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removeDuplicateNodes
(self, epsilon: float = 4*DBL_EPSILON, useZValues: bool = False) → bool¶
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reversed
(self) → QgsCompoundCurve¶
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segmentLength
(self, startVertex: QgsVertexId) → float¶
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setZMTypeFromSubGeometry
()¶
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snappedToGrid
(self, hSpacing: float, vSpacing: float, dSpacing: float = 0, mSpacing: float = 0) → QgsCompoundCurve¶
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startPoint
(self) → QgsPoint¶
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sumUpArea
(self) → float¶
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swapXy
(self)¶
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transform
(self, ct: QgsCoordinateTransform, d: QgsCoordinateTransform.TransformDirection = QgsCoordinateTransform.ForwardTransform, transformZ: bool = False)¶ transform(self, t: QTransform, zTranslate: float = 0, zScale: float = 1, mTranslate: float = 0, mScale: float = 1)
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vertexAngle
(self, vertex: QgsVertexId) → float¶
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xAt
(self, index: int) → float¶
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yAt
(self, index: int) → float¶
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