| 1 | """Create mesh for UQ wave flume |
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| 2 | """ |
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| 3 | |
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| 4 | |
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| 5 | from anuga.pmesh.mesh import * |
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| 6 | from anuga.coordinate_transforms.geo_reference import Geo_reference |
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| 7 | |
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| 8 | |
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| 9 | def generate(mesh_filename, flume_length, is_course = False): |
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| 10 | #Basic geometry |
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| 11 | |
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| 12 | xright = flume_length |
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| 13 | ybottom = 0 |
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| 14 | ytop = 0.85 |
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| 15 | xleft = -2.09 |
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| 16 | xtoe = 0 |
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| 17 | |
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| 18 | #Outline |
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| 19 | point_sw = [xleft, ybottom] |
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| 20 | point_se = [xright, ybottom] |
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| 21 | point_nw = [xleft, ytop] |
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| 22 | point_ne = [xright, ytop] |
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| 23 | |
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| 24 | #beach seperation (left) |
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| 25 | point_toe_top = [xtoe, ytop] |
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| 26 | point_toe_bottom = [xtoe, ybottom] |
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| 27 | |
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| 28 | |
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| 29 | m = Mesh() |
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| 30 | |
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| 31 | #Boundary |
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| 32 | points = [point_sw, #se |
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| 33 | point_nw, |
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| 34 | point_toe_top, |
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| 35 | point_ne, |
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| 36 | point_se, |
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| 37 | point_toe_bottom |
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| 38 | ] |
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| 39 | |
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| 40 | segments = [[0,1], [1,2], [2,3], [3,4], [4,5], [5,0], #The outer border |
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| 41 | [2,5]] #beach separation |
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| 42 | |
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| 43 | segment_tags = {'back':[0], 'wall':[1,2,3,4,5]} # '':[6] |
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| 44 | |
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| 45 | m.add_points_and_segments(points, segments, segment_tags) |
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| 46 | |
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| 47 | beach = m.add_region(+0.0000001, ytop/2) |
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| 48 | # this is the location of the region. |
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| 49 | beach.setTag("beach") |
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| 50 | |
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| 51 | if is_course: |
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| 52 | m.generate_mesh(maximum_triangle_area=0.01) |
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| 53 | else: |
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| 54 | m.generate_mesh(maximum_triangle_area=0.002) |
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| 55 | |
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| 56 | m.export_mesh_file(mesh_filename) |
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| 57 | print "mesh created" |
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| 58 | |
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| 59 | #------------------------------------------------------------- |
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| 60 | if __name__ == "__main__": |
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| 61 | generate("aa.tsh", 0.75, is_course = True) |
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