1 files changed, 41 insertions, 0 deletions
diff --git a/lib/stitches/constants.py b/lib/stitches/constants.py
new file mode 100644
index 00000000..63746310
--- /dev/null
+++ b/lib/stitches/constants.py
@@ -0,0 +1,41 @@
+import math
+
+# Used in the simplify routine of shapely
+simplification_threshold = 0.01
+
+# If a transferred point is closer than this value to one of its neighbors, it will be checked whether it can be removed
+distance_thresh_remove_transferred_point = 0.15
+
+# If a line segment is shorter than this threshold it is handled as a single point
+line_lengh_seen_as_one_point = 0.05
+
+# E.g. to check whether a point is already present in a point list, the point is allowed to be this value in distance apart
+point_spacing_to_be_considered_equal = 0.05
+
+# Adjacent geometry should have points closer than offset*offset_factor_for_adjacent_geometry to be considered adjacent
+offset_factor_for_adjacent_geometry = 1.5
+
+# Transfer point distance is used for projecting points from already rastered geometry to adjacent geometry
+# (max spacing transfer_point_distance_factor*offset) to get a more regular pattern
+transfer_point_distance_factor = 1.5
+
+# Used to handle numerical inaccuracies during comparisons
+eps = 1E-3
+
+factor_offset_starting_points=0.5 #When entering and leaving a child from a parent we introduce an offset of abs_offset*factor_offset_starting_points so 
+                                  #that entering and leaving points are not lying above each other.
+
+factor_offset_remove_points=0.5 #if points are closer than abs_offset*factor_offset_remove_points one of it is removed
+
+fac_offset_edge_shift = 0.25 #if an unshifted relevant edge is closer than abs_offset*fac_offset_edge_shift to the line segment created by the shifted edge,
+                            #the shift is allowed - otherwise the edge must not be shifted.
+
+limiting_angle = math.pi*15/180.0  #decides whether the point belongs to a hard edge (must use this point during sampling) or soft edge (do not necessarily need to use this point)
+limiting_angle_straight = math.pi*0.5/180.0 #angles straighter (smaller) than this are considered as more or less straight (no concrete edges required for path segments having only angles <= this value)
+
+
+factor_offset_remove_dense_points=0.2 #if a point distance to the connected line of its two neighbors is smaller than abs_offset times this factor, this point will be removed if the stitching distance will not be exceeded
+
+factor_offset_forbidden_point = 1.0 #if a soft edge is closer to a forbidden point than abs_offset*this factor it will be marked as forbidden.
+
+factor_segment_length_direct_preferred_over_overnext = 0.5 #usually overnext projected points are preferred. If an overnext projected point would create a much smaller segment than a direct projected point we might prefer the direct projected point