GeometricOperations Class Reference

Geometric operations for geometry objects. More...

Public Member Functions
def	intersect
	Intersects a polyline with a polygon object (clipping)
def	intersect
	intersection of two polygons

Static Public Member Functions
def	difference
	difference of two polygons (polygon1 \ polygon2)
def	intersect
	Intersects a polyline with a polygon object (clipping)
def	join
	join of two polygons (polygon1 'or' polygon2)
def	symmetric_difference
	symmetric difference of two polygons ((polygon1 \ polygon2) 'or' (polygon2 \ polygon1))

Detailed Description

Geometric operations for geometry objects.

Member Function Documentation

def difference (   polygon1,   polygon2  )

static

difference of two polygons (polygon1 \ polygon2)

def intersect (   line,   polygon,   keepPointOrder = False,   ignorePolygonHeights = False  )

static

Intersects a polyline with a polygon object (clipping)

The intersection process is done in 2D. The heights of new points will be computed from the height information of the corresponding intersecting segments. In case both segments have height information available, the height at the new point will be averaged. This behavior can be changed by enabling or disabling the ignorePolygonHeights flag. If the flag is disabled (=default behavior) height information of polygon vertices will be ignored for height computation of new points. Hence, only the polyline height values will play a roll.

Parameters

[in]	line	polyline object to be clipped (object stays unchanged)
[in]	polygon	polygon object use for clipping
[in]	keepPointOrder	Flag if orientation of the resulting line should be preserved (e.g. important for profiles). If the orientation is irrelevant disable the flag to improve processing speed.
[in]	ignorePolygonHeights	enabling or disabling heights of polygon vertices for compute new points (see details)

Returns

clipped polyline object

Referenced by GeometricOperations.intersect().

def intersect	(		polygon,
			line,
			keepPointOrder = False,
			ignorePolygonHeights = False
	)

Intersects a polyline with a polygon object (clipping)

The intersection process is done in 2D. The heights of new points will be computed from the height information of the corresponding intersecting segments. In case both segments have height information available, the height at the new point will be averaged. This behavior can be changed by enabling or disabling the ignorePolygonHeights flag. If the flag is disabled (=default behavior) height information of polygon vertices will be ignored for height computation of new points. Hence, only the polyline height values will play a roll.

Parameters

[in]	line	polyline object to be clipped (object stays unchanged)
[in]	polygon	polygon object use for clipping
[in]	keepPointOrder	Flag if orientation of the resulting line should be preserved (e.g. important for profiles). If the orientation is irrelevant disable the flag to improve processing speed.
[in]	ignorePolygonHeights	enabling or disabling heights of polygon vertices for compute new points (see details)

Returns

clipped polyline object

References GeometricOperations.intersect().

def intersect	(		polygon1,
			polygon2
	)

intersection of two polygons

Parameters

polygon1	(type: Polygon) mandatory parameter
polygon2	(type: Polygon) mandatory parameter

Returns

(type: Polygon)

References GeometricOperations.intersect().

def join (   polygon1,   polygon2  )

static

join of two polygons (polygon1 'or' polygon2)

def symmetric_difference (   polygon1,   polygon2  )

static

symmetric difference of two polygons ((polygon1 \ polygon2) 'or' (polygon2 \ polygon1))