list manipulation - Can Mathematica put these puzzle pieces together?

I have five DXF files with various geometric figures.

Are squares with a different geometric shape in each DXF file...

Four DXF files have a square with a different geometric shape on one side while one DXF file on each side have a different geometric shape, as shown above.

(DXF1,DXF2,DXF3,DXF4,DXF5)

It is possible join these 5 files?

Some files are in the wrong position to be mounted. It is possible to rotate them?

It is possible to create a code that can recognize these geometries and make some assembly like this? The animation is only illustrative. It was created only to facilitate understanding

Animated gif

An attempt was made to convert the files above into 2D BoundaryMeshRegions, and these can be imported via:

meshes = << "http://pastebin.com/raw/zNxS87RP"

Answer

Assuming polygons follow the same (clockwise or counterclockwise) vertex order, find all good quality two line segment rigid mappings between polygons without overlap with each other (at least much overlap, that is). Construct a graph of these mappings and apply appropriate transforms to polygons by finding transform paths from one polygon to all others. (In this case, these paths are pretty simple).

ReplaceList[MeshPrimitives[#, 2] & /@ meshes, {___,
    {a : Polygon[{___, ap : Repeated[_, {3}], ___}]}, ___,
    {b : Polygon[{___, bp : Repeated[_, {3}], ___}]}, ___} :>
   Module[{err, trans},
    {err, trans} = 
     Chop[FindGeometricTransform[{ap}, Reverse@{bp}, 
       TransformationClass -> "Rigid", Method -> "Linear"], 0.001];
    {Property[a \[DirectedEdge] b, "trans" -> trans],
      Property[b \[DirectedEdge] a, "trans" -> InverseFunction@trans]} /;
     err < 1 && 

      Quiet@Area[
         RegionIntersection[BoundaryDiscretizeRegion@a, 
          BoundaryDiscretizeRegion@TransformedRegion[b, trans]]] < 1]] //
 With[{g = Graph@Flatten@#},
   Graphics[{FaceForm[], EdgeForm@Thick, First@VertexList@g,
     GeometricTransformation[#,
        Composition @@ (PropertyValue[{g, DirectedEdge @@ #}, "trans"] & /@ 
           Partition[FindShortestPath[g, First@VertexList@g, #], 2, 1])] & /@
      Rest@VertexList@g}]] &

Comments

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I would like to create a plot where I have unconnected dots and some connected. So far, I have figured out how to draw the dots. My code is the following: ListPlot[{{1, 1}, {2, 2}, {3, 3}, {4, 4}, {1, 4}, {2, 5}, {3, 6}, {4, 7}, {1, 7}, {2, 8}, {3, 9}, {4, 10}, {1, 10}, {2, 11}, {3, 12}, {4,13}, {2.5, 7}}, Ticks -> {{1, 2, 3, 4}, None}, AxesStyle -> Thin, TicksStyle -> Directive[Black, Bold, 12], Mesh -> Full] I have thought using ListLinePlot command, but I don't know how to specify to the command to draw only selected lines between the dots. Do have any suggestions/hints on how to do that? Thank you. Answer One possibility would be to use Epilog with Line : ListPlot[ {{1, 1}, {2, 2}, {3, 3}, {4, 4}, {1, 4}, {2, 5}, {3, 6}, {4, 7}, {1, 7}, {2, 8}, {3, 9}, {4, 10}, {1, 10}, {2, 11}, {3, 12}, {4, 13}, {2.5, 7}}, Ticks -> {{1, 2, 3, 4}, None}, AxesStyle -> Thin, TicksStyle -> Directive[Black, Bold, 12], Mesh -> Full, Epilog -> { Line[ ...

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Is there a way to do conditional matrix loop using 'continue'

I have the following: n = 3; m = 5; ww = RandomReal[{0, 0.1}, {n, n}]; uu = RandomReal[{0, 1}, {m, n}]; pp = RandomReal[{0, 1}, {n, n}]; ss = RandomInteger[{0, 5}, {m, n}]; Grid[{{"ww", "uu", "pp", "ss"}, {ww // TableForm, uu // TableForm, pp // TableForm, ss // TableForm}}, Spacings -> {5, 2}, Dividers -> All] where I would like to look at every element of matrix ss and produce a matrix tt , with zeroes at the locations in ss which have zeroes, and in all other positions do the following: tt = (-1/Subscript[ww, m]) Log[(1 - uu)/(Subscript[pp, m - 1])], where Subscript[ww, m] is the value at index of ww matrix and where Subscript[pp, m - 1] is the value at index-1 of pp matrix. So for example if the first value ever read from matrix ss happens to be 2, then value taken from matrix ww would be from the row 2, but from pp would be from row 1. Also how to tell difference between a 0 as a valid value from within the matrix elemen...

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