This subclass of IlvMapSegmentString
is optimized to handle strings that contain only IlvMapArcSegment
instances.
More...
#include <ilviews/maps/geometry/geoarcstr.h>
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| IlvMapArcString (const IlvCoordinate &start) |
| Initializes an instance of the class specifying its start point. More...
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| IlvMapArcString () |
| Constructor. More...
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| IlvMapArcString (const IlvMapArcString &source) |
| Creates an arc string by copying an existing one. More...
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void | arcTo (const IlvCoordinate &intermediate, const IlvCoordinate &end) |
| Adds an arc at the end of the string. More...
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virtual IlvMapGeometry * | copy () const |
| Returns a copy of the object. More...
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const IlvMapArcSegment * | getArcSegment (IlUInt index) const |
| Returns the arc segment of index index. More...
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virtual IlvClassInfo * | getClassInfo () const |
| Returns the IlvClassInfo of the instance. More...
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virtual const IlvCoordinate & | getEndPoint () const |
| Returns the end point of the last segment, if it exists, otherwise, it returns an IlvCoordinate set to (0,0). More...
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virtual IlUInt | getHorizontalIntersectionCount (const IlvCoordinate &point) const |
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virtual const IlvMapSegment * | getSegment (IlUInt index) const |
| Returns the segment of index index. More...
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virtual IlUInt | getSegmentCount () const |
| Returns the number of segments contained in the string. More...
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virtual const IlvCoordinate & | getStartPoint () const |
| Returns the start point of the first segment, if it exists, otherwise, it returns an IlvCoordinate set to (0,0). More...
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virtual void | removeAll () |
| Removes all the segments in the string and sets the start point to (0,0).
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virtual void | setEndPoint (const IlvCoordinate &end) |
| Sets the end point of the last segment if it exists. More...
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virtual void | setStartPoint (const IlvCoordinate &start) |
| Sets the start point of the first segment. More...
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virtual const IlvMapGeometry * | getSubElement (IlUInt index) const |
| Returns a sub element of a collection geometry. More...
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virtual IlUInt | getSubElementCount () const |
| Returns the number of elements contained in the geometry if the geometry is a collection. More...
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virtual IlBoolean | isCollection () const |
| Checks if this geometry is a collection of other geometries. More...
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This subclass of IlvMapSegmentString
is optimized to handle strings that contain only IlvMapArcSegment
instances.
The instances of this class can be rendered by an IlvDefaultFeatureRenderer
or by an IlvDefaultCurveRenderer
.
- See also
- IlvMapCurveString Library: ilvmaps
Initializes an instance of the class specifying its start point.
- Parameters
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IlvMapArcString::IlvMapArcString |
( |
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Constructor.
Initializes an instance of the class and sets the start point to (0, 0).
Creates an arc string by copying an existing one.
- Parameters
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source | The source arc string. |
Adds an arc at the end of the string.
- Parameters
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intermediate | The intermediate point. |
end | The end point. |
Returns the arc segment of index index.
- Parameters
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index | The index of the segment to be retrieved. index must have a value between 0 and getSegmentCount() -1 . |
- Returns
IlvMapArcSegment
that should not be modified nor deleted by the user. The returned IlvMapSegment
is volatile. This means that it may be modified or deleted by the IlvMapSegmentString
istelf after another call to this function, or after any modification.
virtual IlvClassInfo* IlvMapArcString::getClassInfo |
( |
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const |
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virtual |
virtual const IlvCoordinate& IlvMapArcString::getEndPoint |
( |
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const |
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virtual |
Returns the end point of the last segment, if it exists, otherwise, it returns an IlvCoordinate
set to (0,0).
- Returns
- The end point.
Implements IlvMapSegmentString.
virtual IlUInt IlvMapArcString::getHorizontalIntersectionCount |
( |
const IlvCoordinate & |
point | ) |
const |
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virtual |
Returns the number of intersections between an horizontal half line defined by its right extremity point and the segment. This function is used for point inclusion tests of IlvMapRing
.
- Parameters
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point | The point at the right extremity of the horizontal half line. |
- Returns
- The number of intersections between the point and the segment. Tangent intersections should be counted as:
1
if the point is on the segment, 2
if the point is not on the segment. If the point is on the segment where the tangent is not horizontal, the intersection should not be counted.
Implements IlvMapSegment.
Returns the segment of index index.
- Parameters
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index | The index of the segment to be retrieved. index must have a value between 0 and getSegmentCount() - 1 . |
- Returns
- An
IlvMapSegment
object that should not be modified nor deleted by the user. The returned IlvMapSegment
is volatile. This means that it may be modified or deleted by the IlvMapSegmentString
itself after an other call to this function, or after any modification.
Implements IlvMapSegmentString.
virtual IlUInt IlvMapArcString::getSegmentCount |
( |
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const |
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virtual |
Returns the number of segments contained in the string.
- Returns
- The number of segments.
Implements IlvMapSegmentString.
virtual const IlvCoordinate& IlvMapArcString::getStartPoint |
( |
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const |
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virtual |
Returns the start point of the first segment, if it exists, otherwise, it returns an IlvCoordinate
set to (0,0).
- Returns
- The start point.
Implements IlvMapSegmentString.
virtual void IlvMapArcString::setEndPoint |
( |
const IlvCoordinate & |
end | ) |
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virtual |
Sets the end point of the last segment if it exists.
Otherwise, it does nothing.
- Parameters
-
Implements IlvMapSegmentString.
virtual void IlvMapArcString::setStartPoint |
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const IlvCoordinate & |
start | ) |
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virtual |
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