geometry_attribute.h

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polygon_connection_attributes *get_connection(POLYGON *polygon,POLYGONVECTOR *polygons, long boundary,long displacement,  short print);

polygon_connection_attribute_array *new_connection_attributes(long nh);


polygon_connection_attribute_array *get_connection_array(POLYGONVECTOR *polygons, long boundary,long displacement,short print);

int write_polygonconnectionattributearray(char *filename,polygon_connection_attribute_array *pca);
int fprint_polygonconnectionattributearray(char *filename,polygon_connection_attribute_array *pca);

int connections_symmetry(polygon_connection_attribute_array* pca, long boundary);

polygon_connection_attributes *get_connection_squares(POLYGON *polygon,POLYGONVECTOR *polygons, long boundary,long novalue, long r ,long c,LONGMATRIX *mask,short print);
polygon_connection_attribute_array *get_connection_array_squares(POLYGONVECTOR *polygons, long boundary, long novalue, LONGMATRIX *pixels, short print);