Source code for pymunk.query_info

__docformat__ = "reStructuredText"

from collections import namedtuple

[docs]class PointQueryInfo( namedtuple('PointQueryInfo', ['shape', 'point', 'distance', 'gradient'])): """PointQueryInfo holds the result of a point query made on a Shape or Space. The properties are as follows shape The nearest shape, None if no shape was within range. point The closest point on the shape's surface. (in world space coordinates) distance The distance to the point. The distance is negative if the point is inside the shape. gradient The gradient of the signed distance function. The value should be similar to PointQueryInfo.point/PointQueryInfo.distance, but accurate even for very small values of info.distance. """ __slots__ = ()
[docs]class SegmentQueryInfo( namedtuple('SegmentQueryInfo', ['shape', 'point', 'normal', 'alpha'])): """Segment queries return more information than just a simple yes or no, they also return where a shape was hit and it's surface normal at the hit point. This object hold that information. To test if the query hit something, check if SegmentQueryInfo.shape == None or not. Segment queries are like ray casting, but because not all spatial indexes allow processing infinitely long ray queries it is limited to segments. In practice this is still very fast and you don't need to worry too much about the performance as long as you aren't using extremely long segments for your queries. The properties are as follows shape Shape that was hit, or None if no collision occured point The point of impact. normal The normal of the surface hit. alpha The normalized distance along the query segment in the range [0, 1] """ __slots__ = ()
[docs]class ShapeQueryInfo( namedtuple('ShapeQueryInfo', ['shape', 'contact_point_set'])): """Shape queries return more information than just a simple yes or no, they also return where a shape was hit. This object hold that information. """ __slots__ = ()