How can I find the boiling point from this curve to determine the identity of the compoundQgsCompoundCurve (const QgsCompoundCurve &curve)Compound Curves A compound curve consists of two (or more) circular curves between two main tangents joined at point of compound curve ( PCC ). The substance can be any of methanol, ethanol, 1-propanol or a 1-propanol and water azeotrope). Ive graphed a distillation curve (temperature against volume of distillate) from the data obtained from a simple distillation experiment.
AddCurve ( QgsCurve * c, bool extendPrevious=false)When we look at the resulting curve, we can draw a line along the straight up portion, and the half-way point is the isoelectric point, or equivalence point, of the compound:Adds a curve to the geometry (takes ownership). Point positions are relative the use of origin: A point whose pos is vector (2, 1, 0) is of course normally displayed at location vector. Moving, reorienting, and resizing a curve.
More.CurveToLine (double tolerance=M_PI_2/90, SegmentationToleranceType toleranceType= MaximumAngle) const overrideReturns a new line string geometry corresponding to a segmentized approximation of the curve. More.CurveSubstring (double startDistance, double endDistance) const overrideReturns a new curve representing a substring of this curve. More.Returns the curve at the specified index. More.CreateEmptyWithSameType () const overrideCreates a new geometry with the same class and same WKB type as the original and transfers ownership.
More.Drops any z-dimensions which exist in the geometry. More.Drops any measure values which exist in the geometry. More.DrawAsPolygon (QPainter &p) const overrideDraws the curve as a polygon on the specified QPainter. More.Draws the geometry using the specified QPainter. More.Returns the inherent dimension of the geometry.
More.Sets the geometry from a WKT string. More.Sets the geometry from a WKB string. More.FilterVertices (const std::function &filter) overrideFilters the vertices from the geometry in place, removing any which do not return true for the filter function check. More.Equals (const QgsCurve &other) const overrideChecks whether this curve exactly equals another curve.
More.Points ( QgsPointSequence &pts) const overrideReturns a list of points within the curve. More.Operator= (const QgsCompoundCurve &curve)PointAt (int node, QgsPoint &point, QgsVertexId::VertexType &type) const overrideReturns the point and vertex id of a point within the curve. More.Returns the number of points in the curve. More.Returns the number of curves in the geometry. More.MoveVertex ( QgsVertexId position, const QgsPoint &newPos) overrideMoves a vertex within the geometry. More.Returns the planar, 2-dimensional length of the geometry.
More.SimplifiedTypeRef () const override SIP_HOLDGILReturns a reference to the simplest lossless representation of this geometry, e.g. More.SegmentLength ( QgsVertexId startVertex) const overrideReturns the length of the segment of the geometry which begins at startVertex. More.Scrolls the curve vertices so that they start with the vertex at the given index. More.Returns a reversed copy of the curve, where the direction of the curve has been flipped. More.RemoveDuplicateNodes (double epsilon=4 *std::numeric_limits::epsilon(), bool useZValues=false) overrideRemoves duplicate nodes from the geometry, wherever removing the nodes does not result in a degenerate geometry.
More.Sums up the area of the curve by iterating over the vertices (shoelace formula). More.Returns the starting point of the curve. More.SplitCurveAtVertex (int index) const finalSplits the curve at the specified vertex index, returning two curves which represent the portion of the curve up to an including the vertex at index, and the portion of the curve from the vertex at index (inclusive) to the end of the curve.
More.TransformVertices (const std::function & transform) overrideTransforms the vertices from the geometry in place, applying the transform function to every vertex. More.Transform ( QgsAbstractGeometryTransformer *transformer, QgsFeedback *feedback=nullptr) overrideTransforms the vertices from the geometry in place, using the specified geometry transformer object. More.Transform (const QTransform &t, double zTranslate=0.0, double zScale=1.0, double mTranslate=0.0, double mScale=1.0) overrideTransforms the x and y components of the geometry using a QTransform object t. More.Transform (const QgsCoordinateTransform &ct, Qgis::TransformDirection d=Qgis::TransformDirection::Forward, bool transformZ=false) override SIP_THROW( QgsCsException)Transforms the geometry using a coordinate transform. More.ToggleCircularAtVertex ( QgsVertexId position)Converts the vertex at the given position from/to circular.
More.Returns the geometry represented as a QPainterPath. More.Returns a KML representation of the geometry. More.Public Member Functions inherited from QgsCurveAdjacentVertices ( QgsVertexId vertex, QgsVertexId &previousVertex, QgsVertexId & nextVertex) const overrideReturns the vertices adjacent to a specified vertex within a geometry. More.YAt (int index) const override SIP_HOLDGILReturns the y-coordinate of the specified node in the line string. More.WkbSize (QgsAbstractGeometry::WkbFlags flags=QgsAbstractGeometry::WkbFlags()) const overrideReturns the length of the QByteArray returned by asWkb() More.XAt (int index) const override SIP_HOLDGILReturns the x-coordinate of the specified node in the line string.
More.Returns the minimal bounding box for the geometry. More.Returns the closure of the combinatorial boundary of the geometry (ie the topological boundary of the geometry).
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